Columbia River DART
Adult Passage Inventory
Rock Island Lamprey
All Years
Species Year Data Points Day Range Date Range Annual Count View
Species Year Data Points Day Range Date Range Annual Count View
Lamprey 2023 130 157-299 2023-06-06 : 2023-10-26 7631 Graph Data Table
Lamprey 2022 105 194-300 2022-07-13 : 2022-10-27 10632 Graph Data Table
Lamprey 2021 84 180-299 2021-06-29 : 2021-10-26 725 Graph Data Table
Lamprey 2020 103 179-321 2020-06-27 : 2020-11-16 481 Graph Data Table
Lamprey 2019 94 169-278 2019-06-18 : 2019-10-05 1067 Graph Data Table
Lamprey 2018 125 158-297 2018-06-07 : 2018-10-24 4998 Graph Data Table
Lamprey 2017 121 173-302 2017-06-22 : 2017-10-29 21137 Graph Data Table
Lamprey 2016 139 155-309 2016-06-03 : 2016-11-04 3939 Graph Data Table
Lamprey 2015 110 160-299 2015-06-09 : 2015-10-26 2165 Graph Data Table
Lamprey 2014 100 172-313 2014-06-21 : 2014-11-09 2451 Graph Data Table
Lamprey 2013 101 175-319 2013-06-24 : 2013-11-15 2157 Graph Data Table
Lamprey 2012 83 193-305 2012-07-11 : 2012-10-31 1048 Graph Data Table
Lamprey 2011 80 187-303 2011-07-06 : 2011-10-30 886 Graph Data Table
Lamprey 2010 80 188-302 2010-07-07 : 2010-10-29 318 Graph Data Table
Lamprey 2009 75 187-275 2009-07-06 : 2009-10-02 375 Graph Data Table
Lamprey 2008 89 173-289 2008-06-21 : 2008-10-15 880 Graph Data Table
Lamprey 2007 91 168-276 2007-06-17 : 2007-10-03 1300 Graph Data Table
Lamprey 2006 110 160-297 2006-06-09 : 2006-10-24 1326 Graph Data Table
Lamprey 2005 116 152-297 2005-06-01 : 2005-10-24 2267 Graph Data Table
Lamprey 2004 117 163-297 2004-06-11 : 2004-10-23 2362 Graph Data Table
Lamprey 2003 130 157-312 2003-06-06 : 2003-11-08 5000 Graph Data Table
Lamprey 2002 121 146-313 2002-05-26 : 2002-11-09 4878 Graph Data Table
Lamprey 2001 96 171-298 2001-06-20 : 2001-10-25 1460 Graph Data Table
Lamprey 2000 82 190-297 2000-07-08 : 2000-10-23 822 Graph Data Table