Current Conditions for the Smelt Monitoring Team (SMT)

As of 2025-12-20, life stage is applied to catch and salvage based on fork length and reported in the two week and water year tables.

Downloads: download Daily CSV download Hourly CSV

Daily Conditions for Last 2 Weeks

download Daily CSV (all parameters)

Operational Indices Daily Data for Last 2 Weeks for select locations and parameters
Date	QWEST (CFS) [DWR]	QWEST 7-day (CFS) [DWR]	X2 Position (KM) [DWR]	OMR Index (CFS) [SacPAS]	OMR Index 5-day (CFS) [SacPAS]	OMR Index 14-day (CFS) [SacPAS]	USGS Tidally Filtered OMR (CFS) [USGS]	USGS Tidally Filtered OMR 5-day mean (CFS) [USGS]	USGS Tidally Filtered OMR 14-day mean (CFS) [USGS]	NDOI (CFS) [DWR]	NDOI 3-day (CFS) [DWR]	E/I Ratio 3 day (%) [DWR]	Sum Pumping Discharge HRO+TRP (CFS) [CDEC:HRO+TRP]	Pumping Discharge Harvey O Banks Pumping Plant (CFS) [CDEC:HRO]	Pumping Discharge SJR Tracy Pumping Plant (CFS) [CDEC:TRP]	Pumping Discharge Barker Slough (CFS) [CDEC:BKS]	Pumping Discharge Barker Slough 7-day (CFS) [CDEC:BKS]
Date	QWEST (CFS) [DWR]	QWEST 7-day (CFS) [DWR]	X2 Position (KM) [DWR]	OMR Index (CFS) [SacPAS]	OMR Index 5-day (CFS) [SacPAS]	OMR Index 14-day (CFS) [SacPAS]	USGS Tidally Filtered OMR (CFS) [USGS]	USGS Tidally Filtered OMR 5-day mean (CFS) [USGS]	USGS Tidally Filtered OMR 14-day mean (CFS) [USGS]	NDOI (CFS) [DWR]	NDOI 3-day (CFS) [DWR]	E/I Ratio 3 day (%) [DWR]	Sum Pumping Discharge HRO+TRP (CFS) [CDEC:HRO+TRP]	Pumping Discharge Harvey O Banks Pumping Plant (CFS) [CDEC:HRO]	Pumping Discharge SJR Tracy Pumping Plant (CFS) [CDEC:TRP]	Pumping Discharge Barker Slough (CFS) [CDEC:BKS]	Pumping Discharge Barker Slough 7-day (CFS) [CDEC:BKS]
2025-12-16	-381	-642	82	-2280	-2534	-2602	-3190	-3522		7026	6534	24.1	2660	1691.00	969.00	44	37
2025-12-17	-382	-615	82	-2286	-2477	-2391	-3350	-3502		7278	6888	22.5	2854	1884.00	970.00	41	38
2025-12-18	-769	-640	82	-2682	-2493	-2370	-3280	-3382		7170	7158	22.1	2727	1755.00	972.00	36	37
2025-12-19	-1598	-775	82	-3607	-2689	-2496	-4270	-3470		7121	7190	24.9	4455	3472.00	983.00	32	35
2025-12-20	-4824	-1356		-7100	-3591	-2859	-6320	-4082		5259	6517	36.3	7719	5060.00	2659.00	18	33
2025-12-21	-4182	-1840		-7941	-4723	-3278	-7300	-4904	-3852	10084	7488	43.0	10024	6499.00	3525.00	14	32
2025-12-22	-1400	-1934	82	-6428	-5552	-3587	-7060	-5646	-4155	15464	10269	42.0	9093	5562.00	3531.00	23	30
2025-12-23	-284	-1920	82	-8339	-6683	-4012	-8680	-6726	-4570	28653	18067	33.9	11018	6872.00	4146.00	30	28
2025-12-24	6318	-963	82	-4688	-6899	-4164	-7160	-7304	-4871	47540	30552	22.8	7747	3677.00	4070.00	22	25
2025-12-25	12522	936		-3182	-6116	-4209	-5070	-7054	-5007	59189	45127	15.9	6488	2406.00	4082.00	14	22
2025-12-26	17828	3711	78	-4933	-5514	-4378	-5460	-6686	-5151	72180	59636	11.4	7796	4251.00	3545.00	22	20
2025-12-27	17352	6879		-4902	-5209	-4542	-5310	-6336	-5253	88157	73175	9.7	7002	3485.00	3517.00	21	21
2025-12-28	16256	9799		-5006	-4542	-4712				118169	92835	8.2	6991	3464.00	3527.00	21	22
2025-12-29	16648	12377	63	-3814	-4367	-4799				120756	109027	6.3	5568	2043.00	3525.00	23	22

See Data Notes for details and sources.

Water Quality Daily Data for Last 2 Weeks for select locations and parameters
Date	River Discharge Flow 3-day Freeport (CFS) [CDEC:FPT]	River Discharge Flow SJR nr Vernalis (CFS) [CDEC:VNS]	Rio Vista Flow (CFS) [DWR]	Water Temperature 3-day SR at Rio Vista Br (C) [CDEC:RVB]	Water Temperature Clifton Court (C) [CDEC:CLC]	Water Temperature SJR at Antioch (C) [CDEC:ANH]	Turbidity 3-day Freeport (FNU) [CDEC:FPT]	Water Turbidity 1-day Old River at Bacon Island (USGS) (FNU) [CDEC:OBI]	Water Turbidity 1-day Old River at Franks Tract (FNU) [CDEC:OSJ]	Water Turbidity 1-day SJR Holland Cut (FNU) [CDEC:HOL]
Date	River Discharge Flow 3-day Freeport (CFS) [CDEC:FPT]	River Discharge Flow SJR nr Vernalis (CFS) [CDEC:VNS]	Rio Vista Flow (CFS) [DWR]	Water Temperature 3-day SR at Rio Vista Br (C) [CDEC:RVB]	Water Temperature Clifton Court (C) [CDEC:CLC]	Water Temperature SJR at Antioch (C) [CDEC:ANH]	Turbidity 3-day Freeport (FNU) [CDEC:FPT]	Water Turbidity 1-day Old River at Bacon Island (USGS) (FNU) [CDEC:OBI]	Water Turbidity 1-day Old River at Franks Tract (FNU) [CDEC:OSJ]	Water Turbidity 1-day SJR Holland Cut (FNU) [CDEC:HOL]
2025-12-16	10181.00	1096.24	7605	9.35	9.80	9.67	7.46	2.24	3.62	1.65
2025-12-17	10500.67	1071.64	7856	9.37	9.90	9.83	7.93	2.54	3.76	1.58
2025-12-18	10992.33	1091.12	8129	9.48	10.30	10.00	8.70	2.32	3.53	1.72
2025-12-19	11907.00	1728.56	8901	9.69	10.70	10.17	9.64	2.06	3.63	1.77
2025-12-20	14317.67	3536.16	10252	9.93	11.10	10.33	12.20	2.05	3.55	1.80
2025-12-21	17417.00	4833.36	14430	10.22	11.50	10.50	15.89	2.04	3.67	1.97
2025-12-22	24057.33	5812.60	17034	10.65	12.00	10.78	29.68	2.06	3.67	1.85
2025-12-23	34014.00	6069.88	29035	11.22	12.10	10.94	50.21	2.05	3.97	2.00
2025-12-24	44408.00	5783.00	41308	11.81	12.50	11.22	103.95	3.12	7.80	2.91
2025-12-25	52394.67	5269.48	46409	12.26	12.80	11.61	139.93	3.02	11.44	3.09
2025-12-26	58180.33	4461.20	53604	12.50	12.80	11.78	151.06	2.64	15.34	2.78
2025-12-27	64000.33	4075.88	70055	12.48	12.40	11.61	127.12	2.42	16.07	2.59
2025-12-28	68156.33	3500.28	101240	12.24	12.10	11.56	104.38	2.49	18.41	2.68
2025-12-29	69252.33	2606.71	103436	11.81	11.70	11.50	93.36	2.56	19.72	2.76

See Data Notes for details and sources.

Delta Smelt Releases

Delta Smelt releases reported to SacPAS for WY2026
Date	Location	~Days post hatch	Release Method	Adipose Fin Clipped	VIE Tagged	Total Released	Description
2025-12-16	Sacramento River at Rio Vista	>200	Hard Release (fish truck)	0%	0%	24606	On 2025-12-16, the USFWS will truck approximately ~24606 brood year 2025 Delta Smelt from the FC&CL to Sacramento River at Rio Vista for release into the Delta. This release will include 0% Adipose fin clipped individuals and 0% Visible Implant Elastomer tagged individuals.
2025-12-03	Belden’s Landing boat ramp in Suisun Marsh	>200	Hard Release (fish truck)	0%	0%	35298	On 2025-12-03, the USFWS will truck approximately ~35298 brood year 2025 Delta Smelt from the FC&CL to Belden’s Landing boat ramp in Suisun Marsh for release into the Delta. This release will include 0% Adipose fin clipped individuals and 0% Visible Implant Elastomer tagged individuals.
2025-12-02	Belden’s Landing boat ramp in Suisun Marsh	>200	Hard Release (fish truck)	0%	0%	35862	On 2025-12-02, the USFWS will truck approximately ~35862 brood year 2025 Delta Smelt from the FC&CL to Belden’s Landing boat ramp in Suisun Marsh for release into the Delta. This release will include 0% Adipose fin clipped individuals and 0% Visible Implant Elastomer tagged individuals.
2025-11-05	Belden’s Landing boat ramp in Suisun Marsh	>200	Hard Release (fish truck)	0%	0%	34551	On 2025-11-05, the USFWS will truck approximately ~34551 brood year 2025 Delta Smelt from the FC&CL to Belden’s Landing boat ramp in Suisun Marsh for release into the Delta. This release will include 0% Adipose fin clipped individuals and 0% Visible Implant Elastomer tagged individuals.
2025-11-04	Belden’s Landing boat ramp in Suisun Marsh	>200	Hard Release (fish truck)	0%	0%	33032	On 2025-11-04, the USFWS will truck approximately ~33032 brood year 2025 Delta Smelt from the FC&CL to Belden’s Landing boat ramp in Suisun Marsh for release into the Delta. This release will include 0% Adipose fin clipped individuals and 0% Visible Implant Elastomer tagged individuals.

Summary Tables

Smelt Monitoring Last 2 Weeks

Smelt Monitoring Last 2 Weeks Catch by Life Stage. Delta Smelt Fork Length > 58mm = Adult, Fork Length 20-58mm = Juvenile, Fork Length < 20mm = Larva. Longfin Smelt Fork Length > 84mm = Adult, Fork Length 20-84mm = Juvenile, Fork Length < 20mm = Larva.
Monitoring	Species	Life Stage	First Date	Last Date	nfish	SacPAS Max Possible Date	SacPAS Data Retrieval Method
Chipps Island Trawl	Longfin Smelt	Adult	2025-12-17	2025-12-29	70	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
Chipps Island Trawl	Longfin Smelt	All Catch	2025-12-17	2025-12-29	70	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
EDSM	Delta Smelt	Juvenile	2025-12-16	2025-12-21	4	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
EDSM	Delta Smelt	Adult	2025-12-29	2025-12-29	2	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
EDSM	Delta Smelt	All Catch	2025-12-16	2025-12-29	6	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
EDSM	Longfin Smelt	Juvenile	2025-12-17	2025-12-29	12	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
EDSM	Longfin Smelt	Adult	2025-12-17	2025-12-29	3	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
EDSM	Longfin Smelt	All Catch	2025-12-17	2025-12-29	15	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.

Table only displays species collected in the previous two weeks.

Smelt Monitoring Water Year

Smelt Monitoring Water Year 2026 Total Catch by Life Stage. Delta Smelt Fork Length > 58mm = Adult, Fork Length 20-58mm = Juvenile, Fork Length < 20mm = Larva. Longfin Smelt Fork Length > 84mm = Adult, Fork Length 20-84mm = Juvenile, Fork Length < 20mm = Larva.
Monitoring	Species	Life Stage	First Date	Last Date	nfish	SacPAS Max Possible Date	SacPAS Data Retrieval Method
Chipps Island Trawl	Longfin Smelt	Larva	2025-12-30	2025-12-30	2	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
Chipps Island Trawl	Longfin Smelt	Juvenile	2025-11-25	2025-12-30	12	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
Chipps Island Trawl	Longfin Smelt	Adult	2025-11-25	2025-12-30	190	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
Chipps Island Trawl	Longfin Smelt	All Catch	2025-11-25	2025-12-30	209	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
EDSM	Delta Smelt	Juvenile	2025-10-06	2025-12-21	20	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
EDSM	Delta Smelt	Adult	2025-10-17	2025-12-29	27	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
EDSM	Delta Smelt	All Catch	2025-10-06	2025-12-29	47	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
EDSM	Longfin Smelt	Juvenile	2025-10-02	2025-12-30	83	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
EDSM	Longfin Smelt	Adult	2025-10-27	2025-12-30	25	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.
EDSM	Longfin Smelt	All Catch	2025-10-02	2025-12-30	108	2025-12-30	Daily. Data are preliminary and are subject to correction and revision.

Smelt Salvage Last 2 Weeks

No Delta Smelt or Longfin Smelt caught in SWP and CVP Facilities last 2 weeks. Based on daily retrieval of CDFW Salvage DB.

SacPAS Max Possible Date: 2025-12-29

Smelt Salvage Water Year

No Delta Smelt or Longfin Smelt caught in SWP and CVP Facilities WY2026. Based on daily retrieval of CDFW Salvage DB.

SacPAS Max Possible Date: 2025-12-29

Figures

Water Temperature

Onset of OMR Management

The information on OMR Managment on this website is summarized for Delta Smelt from the OMR Entrainment Management Guidance Document and does not reflect a comprehensive description of each of the OMR actions.

"First Flush" conditions may be triggered between December 1 and January 31 and include: Running 3-day average of the daily flows at Freeport is greater than 25,000 cfs and running 3-day average of the daily turbidity at Freeport is 50 NTU or greater, or real-time monitoring indicates a high risk of migration and dispersal into areas at high risk of future entrainment. This "First Flush" may only be initiated once during the December through January period and will not be required if: spent female Delta Smelt are collected in monitoring surveys.

Turbidity Bridge Avoidance

graph turbidity daily average sacramento san joaquin

Turbidity Bridge Avoidance ("South Delta Turbidity"): After the Integrated Early Winter Pulse Protection (above) or February 1 (whichever comes first) and until a ripe or spent female is detected or April 1 (whichever is first), Reclamation and DWR propose to manage exports in order to maintain daily average turbidity in Old River at Bacon Island (OBI) at a level of less than 12 NTU. Reclamation and DWR recognize that readings at individual sensors or localized groups of sensors can generate spurious results in real-time. To avoid triggering an OMR flow action during a sensor error or a localized turbidity spike that might be caused by local flows or a wind-driven event, Reclamation and DWR will consider and review data from other locations.

Larval and Juvenile Delta Smelt Protection

End of OMR Management

OMR criteria may control operations until June 30 (for Delta Smelt and Chinook salmon), until June 15 (for steelhead/rainbow trout), or when the following species-specific off ramps have occurred, whichever is earlier.

Delta Smelt: when the daily mean water temperature at CCF reaches 77°F for 3 consecutive days. 77°F is equal to 25°C.

Operations and Hydrology

graph Barker Slough temperature and turbidity daily

Water Year Tables

USFWS Chipps Island Trawl

Daily Delta Smelt and Longfin Smelt caught in Chipps Island Trawl USFWS Lodi juvenile monitoring WY2026
Date	Species	Mark Code	nfish	Fork Length	Life Stage	Station Code	Sample Time	Source
2025-11-25	Longfin Smelt	None	1	70	Juvenile	SB018N	07:45:00	Data are preliminary and are subject to correction and revision.
2025-11-25	Longfin Smelt	None	1	104	Adult	SB018N	07:45:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	2	109	Adult	SB018S	10:06:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	94	Adult	SB018S	10:59:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	99	Adult	SB018S	10:59:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	75	Juvenile	SB018M	09:09:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	95	Adult	SB018M	09:09:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	97	Adult	SB018M	09:09:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	100	Adult	SB018M	09:09:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	104	Adult	SB018M	09:09:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	113	Adult	SB018M	09:09:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	2	106	Adult	SB018S	10:06:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	107	Adult	SB018S	10:06:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	105	Adult	SB018N	12:20:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	72	Juvenile	SB018N	11:55:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	71	Juvenile	SB018N	11:55:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	104	Adult	SB018M	08:44:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	59	Juvenile	SB018S	10:06:00	Data are preliminary and are subject to correction and revision.
2025-12-01	Longfin Smelt	None	1	66	Juvenile	SB018S	10:06:00	Data are preliminary and are subject to correction and revision.
2025-12-04	Longfin Smelt	None	1		NA	SB018M	08:25:00	Data are preliminary and are subject to correction and revision.
2025-12-08	Longfin Smelt	None	1	104	Adult	SB018M	08:20:00	Data are preliminary and are subject to correction and revision.
2025-12-10	Longfin Smelt	None	1	101	Adult	SB018M	10:07:00	Data are preliminary and are subject to correction and revision.
2025-12-10	Longfin Smelt	None	1		NA	SB018N	10:59:00	Data are preliminary and are subject to correction and revision.
2025-12-10	Longfin Smelt	None	3		NA	SB018M	10:33:00	Data are preliminary and are subject to correction and revision.
2025-12-10	Longfin Smelt	None	1	103	Adult	SB018S	07:57:00	Data are preliminary and are subject to correction and revision.
2025-12-10	Longfin Smelt	None	1	105	Adult	SB018M	09:40:00	Data are preliminary and are subject to correction and revision.
2025-12-10	Longfin Smelt	None	1	98	Adult	SB018S	08:47:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	106	Adult	SB018S	11:36:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	101	Adult	SB018N	08:06:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	108	Adult	SB018N	08:06:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	109	Adult	SB018N	08:06:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	113	Adult	SB018N	08:06:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	72	Juvenile	SB018N	08:32:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	105	Adult	SB018N	08:32:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	101	Adult	SB018N	08:58:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	110	Adult	SB018N	09:23:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	72	Juvenile	SB018M	09:51:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	113	Adult	SB018M	09:51:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	100	Adult	SB018M	10:17:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	102	Adult	SB018M	10:17:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	103	Adult	SB018M	10:17:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	110	Adult	SB018M	10:17:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	105	Adult	SB018M	10:42:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	100	Adult	SB018S	12:02:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	97	Adult	SB018S	11:36:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	111	Adult	SB018S	11:11:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	105	Adult	SB018S	11:11:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	1	101	Adult	SB018S	11:11:00	Data are preliminary and are subject to correction and revision.
2025-12-12	Longfin Smelt	None	2	100	Adult	SB018S	11:11:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	91	Adult	SB018M	10:45:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	118	Adult	SB018M	10:20:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	107	Adult	SB018M	10:20:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	3	105	Adult	SB018M	10:20:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	2	104	Adult	SB018M	10:20:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	87	Adult	SB018M	10:20:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	3	111	Adult	SB018M	09:54:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	109	Adult	SB018M	09:54:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	108	Adult	SB018M	09:54:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	2	105	Adult	SB018M	09:54:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	108	Adult	SB018N	12:01:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	105	Adult	SB018N	12:01:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	98	Adult	SB018N	12:01:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	71	Juvenile	SB018N	12:01:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	105	Adult	SB018N	11:34:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	66	Juvenile	SB018N	11:34:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	107	Adult	SB018N	11:11:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	2	100	Adult	SB018M	09:54:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	97	Adult	SB018M	09:54:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	78	Juvenile	SB018M	09:54:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	106	Adult	SB018M	09:27:00	Data are preliminary and are subject to correction and revision.
2025-12-15	Longfin Smelt	None	1	96	Adult	SB018M	09:27:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	109	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	107	Adult	SB018M	08:20:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	105	Adult	SB018M	08:46:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	109	Adult	SB018M	08:46:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	2	110	Adult	SB018M	08:46:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	120	Adult	SB018M	08:46:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	91	Adult	SB018M	09:12:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	102	Adult	SB018M	09:12:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	114	Adult	SB018M	09:12:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	105	Adult	SB018N	10:33:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	107	Adult	SB018N	10:33:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	110	Adult	SB018N	10:33:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	112	Adult	SB018N	10:33:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	117	Adult	SB018N	10:33:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	91	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	95	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	96	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	97	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	2	98	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	99	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	101	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	102	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	103	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	3	104	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	2	105	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	106	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	107	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	3	108	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	2	110	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	111	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	2	113	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	3	115	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	116	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	1	118	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-17	Longfin Smelt	None	2	120	Adult	SB018N	10:54:00	Data are preliminary and are subject to correction and revision.
2025-12-22	Longfin Smelt	None	1	98	Adult	SB018M	09:06:00	Data are preliminary and are subject to correction and revision.
2025-12-22	Longfin Smelt	None	1	105	Adult	SB018M	09:06:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	106	Adult	SB018M	12:09:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	98	Adult	SB018S	11:44:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	101	Adult	SB018S	11:44:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	108	Adult	SB018S	11:44:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	110	Adult	SB018S	11:44:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	105	Adult	SB018M	12:09:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	100	Adult	SB018M	12:09:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	100	Adult	SB018S	10:28:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	98	Adult	SB018S	10:53:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	99	Adult	SB018S	10:53:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	101	Adult	SB018S	10:53:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	2	106	Adult	SB018S	10:53:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	120	Adult	SB018S	10:53:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	97	Adult	SB018S	11:44:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	100	Adult	SB018N	09:32:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	103	Adult	SB018N	09:59:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	110	Adult	SB018N	09:59:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	98	Adult	SB018N	09:32:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	86	Adult	SB018N	09:32:00	Data are preliminary and are subject to correction and revision.
2025-12-29	Longfin Smelt	None	1	108	Adult	SB018M	12:09:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	2	109	Adult	SB018M	12:18:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	2	105	Adult	SB018M	12:18:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	104	Adult	SB018M	12:18:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	10	Larva	SB018M	12:18:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	4	Larva	SB018M	12:18:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	94	Adult	SB018S	09:42:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	2	105	Adult	SB018S	09:42:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	94	Adult	SB018S	10:07:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	99	Adult	SB018S	10:07:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	100	Adult	SB018S	10:07:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	102	Adult	SB018S	10:07:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	3	105	Adult	SB018S	10:07:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	107	Adult	SB018S	10:07:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	109	Adult	SB018S	10:07:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	97	Adult	SB018S	10:35:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	107	Adult	SB018S	10:35:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	80	Juvenile	SB018S	11:02:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	95	Adult	SB018S	11:02:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	96	Adult	SB018S	11:02:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	115	Adult	SB018M	11:32:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	2	100	Adult	SB018S	11:02:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	103	Adult	SB018S	11:02:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	104	Adult	SB018S	11:02:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	2	105	Adult	SB018S	11:02:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	106	Adult	SB018S	11:02:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	2	107	Adult	SB018S	11:02:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	3	110	Adult	SB018S	11:02:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	111	Adult	SB018S	11:02:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	112	Adult	SB018N	12:43:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	96	Adult	SB018N	13:08:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	114	Adult	SB018M	11:32:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	111	Adult	SB018M	11:32:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	108	Adult	SB018M	11:32:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	106	Adult	SB018M	11:32:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	2	100	Adult	SB018M	11:32:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	97	Adult	SB018M	11:32:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	96	Adult	SB018M	11:32:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	95	Adult	SB018M	11:32:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	91	Adult	SB018M	11:32:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	94	Adult	SB018M	11:27:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	1	510	Adult	SB018M	12:18:00	Data are preliminary and are subject to correction and revision.
2025-12-30	Longfin Smelt	None	4	110	Adult	SB018M	12:18:00	Data are preliminary and are subject to correction and revision.

EDSM

WY2026 Delta Smelt and Longfin Smelt caught in Enhanced Delta Smelt Monitoring (EDSM)
Sample Date Time	Species	Mark Code	nfish	Fork Length (mm)	Life Stage	Subregion	Stratum	Region	Method	Source
2025-10-06 11:30:00	Delta Smelt	None	1	54	Juvenile	Lower Sacramento River	Lower Sacramento	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-10-09 09:21:00	Delta Smelt	None	1	54	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-10-17 12:27:00	Delta Smelt	None	1	59	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 08:57:00	Delta Smelt	None	1	53	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 09:37:00	Delta Smelt	None	1	55	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 09:37:00	Delta Smelt	None	1	62	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 09:37:00	Delta Smelt	None	1	66	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 10:01:00	Delta Smelt	None	1	45	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 10:01:00	Delta Smelt	None	3	50	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 10:01:00	Delta Smelt	None	1	51	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 10:01:00	Delta Smelt	None	1	53	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 10:01:00	Delta Smelt	None	1	54	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 10:01:00	Delta Smelt	None	1	56	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 10:01:00	Delta Smelt	None	1	59	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 10:01:00	Delta Smelt	None	1	64	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 10:01:00	Delta Smelt	None	2	66	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 10:01:00	Delta Smelt	None	1	67	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 10:01:00	Delta Smelt	None	2	71	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-10 10:14:00	Delta Smelt	None	1	59	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-10 10:14:00	Delta Smelt	None	1	61	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-10 10:33:00	Delta Smelt	None	1	60	Adult	Suisun Marsh	Suisun Marsh	West		EDSM Provisional, USFWS Lodi
2025-11-10 10:33:00	Delta Smelt	None	1	64	Adult	Suisun Marsh	Suisun Marsh	West		EDSM Provisional, USFWS Lodi
2025-11-10 11:45:00	Delta Smelt	None	1	56	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-17 09:12:00	Delta Smelt	None	1	66	Adult	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-20 08:56:00	Delta Smelt	None	1	60	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-20 09:12:00	Delta Smelt	None	1	62	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-20 09:12:00	Delta Smelt	None	1	74	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-01 09:16:00	Delta Smelt	None	1	66	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-04 13:32:00	Delta Smelt	None	1	73	Adult	Lower Sac River Ship Channel	Sac Deep Water	North	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-09 08:41:00	Delta Smelt	None	1	74	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-09 08:57:00	Delta Smelt	None	1	69	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-09 09:44:00	Delta Smelt	None	1	61	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:42:00	Delta Smelt	None	1	55	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:42:00	Delta Smelt	None	1	56	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:42:00	Delta Smelt	None	1	57	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:42:00	Delta Smelt	None	1	70	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 12:26:00	Delta Smelt	None	1	59	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-16 09:54:00	Delta Smelt	None	1	57	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-16 11:08:00	Delta Smelt	None	1	47	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-21 10:06:00	Delta Smelt	None	1	54	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-21 11:27:00	Delta Smelt	None	1	55	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-29 08:44:00	Delta Smelt	None	1	78	Adult	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-29 11:35:00	Delta Smelt	None	1	59	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-10-02 10:44:00	Longfin Smelt	None	1	61	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-10-16 09:43:00	Longfin Smelt	None	1	50	Juvenile	Honker Bay	Suisun Bay	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-10-20 08:12:00	Longfin Smelt	None	1	57	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-10-27 10:22:00	Longfin Smelt	None	1	59	Juvenile	West Suisun Bay	Suisun Bay	Far West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-10-27 10:38:00	Longfin Smelt	None	1	57	Juvenile	West Suisun Bay	Suisun Bay	Far West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-10-27 10:38:00	Longfin Smelt	None	1	61	Juvenile	West Suisun Bay	Suisun Bay	Far West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-10-27 10:38:00	Longfin Smelt	None	1	64	Juvenile	West Suisun Bay	Suisun Bay	Far West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-10-27 10:38:00	Longfin Smelt	None	1	87	Adult	West Suisun Bay	Suisun Bay	Far West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-10-30 08:06:00	Longfin Smelt	None	1	58	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-10-30 08:21:00	Longfin Smelt	None	1	102	Adult	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-10-30 10:51:00	Longfin Smelt	None	1	64	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 08:59:00	Longfin Smelt	None	1	70	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 08:59:00	Longfin Smelt	None	1	71	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 08:59:00	Longfin Smelt	None	1	92	Adult	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 09:31:00	Longfin Smelt	None	1	95	Adult	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 10:16:00	Longfin Smelt	None	1	59	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 10:16:00	Longfin Smelt	None	1	61	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 10:16:00	Longfin Smelt	None	1	62	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 10:16:00	Longfin Smelt	None	1	69	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 10:32:00	Longfin Smelt	None	1	61	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 10:32:00	Longfin Smelt	None	1	71	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 10:32:00	Longfin Smelt	None	1	95	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 10:32:00	Longfin Smelt	None	1	100	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 11:03:00	Longfin Smelt	None	1	63	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 11:03:00	Longfin Smelt	None	1	65	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 11:03:00	Longfin Smelt	None	1	68	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 11:03:00	Longfin Smelt	None	1	71	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 11:03:00	Longfin Smelt	None	1	73	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 11:03:00	Longfin Smelt	None	1	82	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 11:45:00	Longfin Smelt	None	1	67	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-03 12:15:00	Longfin Smelt	None	1	68	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-06 10:01:00	Longfin Smelt	None	1	63	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-13 08:30:00	Longfin Smelt	None	1	74	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-13 08:45:00	Longfin Smelt	None	1	57	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-13 08:45:00	Longfin Smelt	None	1	81	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-13 09:02:00	Longfin Smelt	None	1	82	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-13 09:17:00	Longfin Smelt	None	1	65	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-17 10:29:00	Longfin Smelt	None	1	60	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-17 10:49:00	Longfin Smelt	None	1	65	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-17 10:49:00	Longfin Smelt	None	1	81	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-17 11:06:00	Longfin Smelt	None	1	62	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-17 11:06:00	Longfin Smelt	None	1	67	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-17 11:06:00	Longfin Smelt	None	1	89	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-11-17 11:24:00	Longfin Smelt	None	1	65	Juvenile	Suisun Marsh	Suisun Marsh	West		EDSM Provisional, USFWS Lodi
2025-12-01 10:02:00	Longfin Smelt	None	1	62	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-01 10:17:00	Longfin Smelt	None	1	64	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-10 10:23:00	Longfin Smelt	None	1	58	Juvenile	West Suisun Bay	Suisun Bay	Far West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-10 10:23:00	Longfin Smelt	None	1	62	Juvenile	West Suisun Bay	Suisun Bay	Far West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-10 10:23:00	Longfin Smelt	None	1	69	Juvenile	West Suisun Bay	Suisun Bay	Far West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-10 10:23:00	Longfin Smelt	None	1	92	Adult	West Suisun Bay	Suisun Bay	Far West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-10 10:41:00	Longfin Smelt	None	1	81	Juvenile	West Suisun Bay	Suisun Bay	Far West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-10 10:41:00	Longfin Smelt	None	1	98	Adult	West Suisun Bay	Suisun Bay	Far West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-10 10:57:00	Longfin Smelt	None	1	69	Juvenile	West Suisun Bay	Suisun Bay	Far West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-10 10:57:00	Longfin Smelt	None	1	71	Juvenile	West Suisun Bay	Suisun Bay	Far West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 09:31:00	Longfin Smelt	None	1	60	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 09:31:00	Longfin Smelt	None	1	64	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 09:31:00	Longfin Smelt	None	1	69	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 09:31:00	Longfin Smelt	None	1	70	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 09:31:00	Longfin Smelt	None	1	76	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 09:49:00	Longfin Smelt	None	2	60	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 09:49:00	Longfin Smelt	None	1	61	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 09:49:00	Longfin Smelt	None	1	65	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 09:49:00	Longfin Smelt	None	1	72	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 09:49:00	Longfin Smelt	None	1	73	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 09:49:00	Longfin Smelt	None	1	94	Adult	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:06:00	Longfin Smelt	None	1	69	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:06:00	Longfin Smelt	None	1	88	Adult	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:06:00	Longfin Smelt	None	1	100	Adult	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:06:00	Longfin Smelt	None	1	108	Adult	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:42:00	Longfin Smelt	None	1	65	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:42:00	Longfin Smelt	None	1	100	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:59:00	Longfin Smelt	None	1	63	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:59:00	Longfin Smelt	None	1	66	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:59:00	Longfin Smelt	None	1	72	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:59:00	Longfin Smelt	None	1	74	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:59:00	Longfin Smelt	None	2	78	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:59:00	Longfin Smelt	None	1	97	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:59:00	Longfin Smelt	None	1	98	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 10:59:00	Longfin Smelt	None	1	103	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 11:38:00	Longfin Smelt	None	1	76	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 11:54:00	Longfin Smelt	None	1	64	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 11:54:00	Longfin Smelt	None	1	69	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 11:54:00	Longfin Smelt	None	1	109	Adult	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-11 12:26:00	Longfin Smelt	None	1	62	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-15 09:04:00	Longfin Smelt	None	1	77	Juvenile	Mid Suisun Bay	Suisun Bay	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-15 09:04:00	Longfin Smelt	None	1	79	Juvenile	Mid Suisun Bay	Suisun Bay	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-15 09:04:00	Longfin Smelt	None	1	114	Adult	Mid Suisun Bay	Suisun Bay	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-15 09:53:00	Longfin Smelt	None	1	97	Adult	Mid Suisun Bay	Suisun Bay	West		EDSM Provisional, USFWS Lodi
2025-12-17 08:25:00	Longfin Smelt	None	1	75	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-17 08:40:00	Longfin Smelt	None	1	75	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-17 08:40:00	Longfin Smelt	None	1	84	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-17 09:32:00	Longfin Smelt	None	1	70	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-17 09:32:00	Longfin Smelt	None	1	73	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-17 09:32:00	Longfin Smelt	None	1	75	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-17 09:48:00	Longfin Smelt	None	1	64	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-17 09:48:00	Longfin Smelt	None	1	98	Adult	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-17 10:03:00	Longfin Smelt	None	1	69	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-17 10:18:00	Longfin Smelt	None	1	78	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-29 08:44:00	Longfin Smelt	None	1	79	Juvenile	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-29 08:44:00	Longfin Smelt	None	1	101	Adult	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-29 09:01:00	Longfin Smelt	None	1	103	Adult	Grizzly Bay	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-29 09:44:00	Longfin Smelt	None	1	60	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-29 10:14:00	Longfin Smelt	None	1	75	Juvenile	Suisun Marsh	Suisun Marsh	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-30 09:49:00	Longfin Smelt	None	1	90	Adult	Confluence	Suisun Bay	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-30 10:19:00	Longfin Smelt	None	1	75	Juvenile	Confluence	Suisun Bay	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi
2025-12-30 10:19:00	Longfin Smelt	None	1	102	Adult	Confluence	Suisun Bay	West	Kodiak Trawl	EDSM Provisional, USFWS Lodi

Salvage at the SWP and CVP Delta Fish Facilities

No Delta Smelt or Longfin Smelt caught in SWP and CVP Facilities WY2026.

Hourly Table

download Daily CSV (all parameters)

Hourly Data for Last 7 Days for select locations and parameters (used in figures)
Date	Hour	River Discharge Flow Old River at Bacon Island (USGS) (CFS) [CDEC:OBI]	River Discharge Flow Old River at Highway 4 (CFS) [CDEC:OH4]
Date	Hour	River Discharge Flow Old River at Bacon Island (USGS) (CFS) [CDEC:OBI]	River Discharge Flow Old River at Highway 4 (CFS) [CDEC:OH4]
2025-12-23	0	10200.00
2025-12-23	1	9330.00
2025-12-23	2	6480.00
2025-12-23	3	1590.00
2025-12-23	4	-7960.00
2025-12-23	5
2025-12-23	6
2025-12-23	7
2025-12-23	8
2025-12-23	9
2025-12-23	10	-7840.00
2025-12-23	11	-3010.00
2025-12-23	12	-1520.00
2025-12-23	13	-3690.00
2025-12-23	14	-9260.00
2025-12-23	15
2025-12-23	16
2025-12-23	17
2025-12-23	18
2025-12-23	19
2025-12-23	20	-176.00
2025-12-23	21	6540.00
2025-12-23	22	10200.00
2025-12-23	23	10800.00
2025-12-24	0	11200.00
2025-12-24	1	10400.00
2025-12-24	2	7880.00
2025-12-24	3	4430.00
2025-12-24	4	-5970.00
2025-12-24	5
2025-12-24	6
2025-12-24	7
2025-12-24	8
2025-12-24	9
2025-12-24	10
2025-12-24	11	-6070.00
2025-12-24	12	260.00
2025-12-24	13	2470.00
2025-12-24	14	3510.00
2025-12-24	15	-1540.00
2025-12-24	16	-9060.00
2025-12-24	17
2025-12-24	18
2025-12-24	19	-8730.00
2025-12-24	20	-500.00
2025-12-24	21	5420.00
2025-12-24	22	9280.00
2025-12-24	23	11000.00
2025-12-25	0	11000.00
2025-12-25	1	11000.00
2025-12-25	2	10100.00
2025-12-25	3	7910.00
2025-12-25	4	227.00
2025-12-25	5	-9640.00
2025-12-25	6
2025-12-25	7
2025-12-25	8
2025-12-25	9
2025-12-25	10
2025-12-25	11	-6110.00
2025-12-25	12	624.00
2025-12-25	13	3630.00
2025-12-25	14	6690.00
2025-12-25	15	5920.00
2025-12-25	16	-1690.00
2025-12-25	17	-8370.00
2025-12-25	18
2025-12-25	19
2025-12-25	20	-8840.00
2025-12-25	21	-2430.00
2025-12-25	22	3400.00
2025-12-25	23	7720.00
2025-12-26	0	9920.00
2025-12-26	1	10700.00
2025-12-26	2	8580.00
2025-12-26	3	6330.00
2025-12-26	4	3500.00
2025-12-26	5	-5820.00
2025-12-26	6
2025-12-26	7
2025-12-26	8
2025-12-26	9
2025-12-26	10
2025-12-26	11	-8170.00
2025-12-26	12	-131.00
2025-12-26	13	4310.00
2025-12-26	14	7220.00	3790.00
2025-12-26	15	7140.00	4110.00
2025-12-26	16	3360.00	370.00
2025-12-26	17	-5440.00	-2830.00
2025-12-26	18		-7130.00
2025-12-26	19		-9450.00
2025-12-26	20		-8570.00
2025-12-26	21	-8930.00	-7810.00
2025-12-26	22	-1110.00	-5200.00
2025-12-26	23	4730.00	540.00
2025-12-27	0	8640.00	5050.00
2025-12-27	1	9100.00	5020.00
2025-12-27	2	7900.00	3070.00
2025-12-27	3	6650.00	2470.00
2025-12-27	4	4730.00	1570.00
2025-12-27	5	695.00	913.00
2025-12-27	6	-9010.00	-547.00
2025-12-27	7
2025-12-27	8		-7450.00
2025-12-27	9		-9940.00
2025-12-27	10
2025-12-27	11
2025-12-27	12	-6920.00
2025-12-27	13	633.00	-6770.00
2025-12-27	14	2700.00	-2120.00
2025-12-27	15	5380.00	2280.00
2025-12-27	16	6970.00	4310.00
2025-12-27	17	6600.00	4950.00
2025-12-27	18	4690.00	4350.00
2025-12-27	19	-597.00	2710.00
2025-12-27	20	-7510.00	-1600.00
2025-12-27	21		-4970.00
2025-12-27	22	-8730.00	-5740.00
2025-12-27	23	-4630.00	-5180.00
2025-12-28	0	1430.00	-1960.00
2025-12-28	1	4940.00	1660.00
2025-12-28	2	6420.00	2710.00
2025-12-28	3	5560.00	1950.00
2025-12-28	4	4500.00	892.00
2025-12-28	5	1240.00	104.00
2025-12-28	6	-5720.00	-1060.00
2025-12-28	7		-4580.00
2025-12-28	8		-6550.00
2025-12-28	9		-8010.00
2025-12-28	10		-8760.00
2025-12-28	11		-9150.00
2025-12-28	12		-8450.00
2025-12-28	13	-1620.00	-5710.00
2025-12-28	14	5470.00	-1400.00
2025-12-28	15	7130.00	1180.00
2025-12-28	16	7430.00	1710.00
2025-12-28	17	6780.00	1830.00
2025-12-28	18	5770.00	1220.00
2025-12-28	19	4170.00	272.00
2025-12-28	20	242.00	1060.00
2025-12-28	21	-7020.00	86.00
2025-12-28	22		-4220.00
2025-12-28	23		-5920.00
2025-12-29	0	-8540.00	-6670.00
2025-12-29	1	-3660.00	-5930.00
2025-12-29	2	1220.00	-3000.00
2025-12-29	3	3790.00	410.00
2025-12-29	4	4900.00	1960.00
2025-12-29	5	4460.00	2180.00
2025-12-29	6	1310.00	1300.00
2025-12-29	7	-6820.00	-1020.00
2025-12-29	8		-5110.00
2025-12-29	9		-7040.00
2025-12-29	10		-8450.00
2025-12-29	11		-9360.00
2025-12-29	12		-9110.00
2025-12-29	13	-8270.00	-8390.00
2025-12-29	14	1220.00	-4410.00
2025-12-29	15	6250.00	-614.00
2025-12-29	16	7520.00	2030.00
2025-12-29	17	8200.00	3980.00
2025-12-29	18	8520.00	4010.00
2025-12-29	19	7880.00	3880.00
2025-12-29	20	6780.00	4090.00
2025-12-29	21	4310.00	4040.00
2025-12-29	22	-4710.00	1730.00
2025-12-29	23		-4310.00

Data Notes & Resources

Content on this page is updated daily and includes the most up-to-date datasets contained in the SacPAS database.

Smelt Monitoring

The Enhanced Delta Smelt Monitoring Program (EDSM) Weekly Summary, USFWS Lodi. Data are preliminary and are subject to correction and revision.

Smelt Surveys Current and Historical

Current and Historical Delta Smelt Surveys query, HTML table and CSV.

Annually updated Historical Delta Smelt Combined Sampling by Stratum plots removed until further review.

Data Notes

We obtain Enhanced Delta Smelt Monitoring (EDSM) Provisional data from Delta Juvenile Fish Monitoring Program, USFWS Lodi Office; data are preliminary and are subject to correction and revision. Please see the Environmental Data Initiative (EDI) Portal Interagency Ecological Program and US Fish and Wildlife Service: San Francisco Estuary Enhanced Delta Smelt Monitoring Program data for the finalized dataset.
We obtain salvage data from Fish Salvage Monitoring, CDFW Bay Delta Region
- Salvage Database, https://filelib.wildlife.ca.gov/Public/Salvage/
We obtain Delta Operations (single day and running 30 day reports) from Operations and Delta Status, California Department of Water Resources. SacPAS has archived this data since October 2016.
- "QWEST", "NDOI", "E/I Ratio 3-day", and "Rio Vista Flow" from the Delta Status and Operations, Hydrologic Conditions Summary (daily) pdf.
- "X2 Position": Data from the Delta Status and Operations, Delta Operations Summary (daily) pdf. For plotting purposes, SacPAS substitutes ">81km" with "82" and "<56km" with "55".
On a daily basis, SacPAS calculates "OMR Index", "OMR Index 5-day", and "OMR Index 14-day" based on methods as described in:
California Department of Water Resources (DWR). 2017. Old and Middle River Flow Review: USGS Gauge Readings versus Index Calculations for 2011 through 2017. Online: https://cawaterlibrary.net/wp-content/uploads/2017/12/4-Old-and-Middle-River-Flow-Review.pdf
See OMR Tidally Filtered Flow and Index Calculations as performed by SacPAS for full details. SacPAS calculated OMR Index is available for 28 October 2016 to the present.
On a daily basis, we download event, hourly, and daily data from California Data Exchange Center (CDEC) for select parameters and sites for inclusion in the SacPAS database.
- As of 2024-12-06, daily averages for CDEC stations and parameters on this webpage, exclusively, are daily averages as published by CDEC. Missing CDEC daily averages are filled by SacPAS from CDEC data where event- or hourly-timescale data are available (using hours 01-24 in local time). A correction to our process was implemented on 2025-01-14.
We obtain Chipps Island Trawl catch data daily.
Life stage is applied to catch based on fork length (mm).
- Delta Smelt
  - Larva: < 20mm
  - Juvenile: 20-58mm
  - Adult: > 58mm
- Longfin Smelt
  - Larva: < 20mm
  - Juvenile: 20-84mm
  - Adult: > 84mm