Lebeda idfg psmfc senior fisheries technician hi everyone if you have ever wondered what the idaho department of fish and game idfg is doing at lower granite dam then this article is for you.
Lower granite dam fish count 2018.
Steelhead creel estimates for the week of september 21 27 2020 snake river section locations anglers checked hours fished fish kept fish released total hours per fish caught hours per fish kept water temp water conditions snake river downstream from salmon river 01 181 1 005 19 28 47 21 53.
2020 steelhead count from july 1 to december 31 2020 to view winter passage at bonneville dam go to.
Lower granite dam is part of the columbia river basin system of dams built and.
Gcpud was able to make modifications for fish passage at the dam but a count was not taken at the dam.
Wells dam lamprey research 2007 2008.
Fish counts from each fishladder first 2 queries below go back to 1981.
Corps of engineers fish reporting site dam date of count daily count total to date in 2020 total to date in 2019 5 year average total count to date bonneville oct 1 446 104 286 66 091 132 844 lower granite oct 1 1 623 28 838 12 500 33 485 counts include wild and hatchery origin fish.
Idaho fish and game whose mission is to preserve protect perpetuate and manage all wildlife in idaho.
All data are considered preliminary until completion of the final report.
In portland district annual fish passage reports fishladder counts are combined to get the counts for each dam bonneville the dalles john day mcnary ice harbor and lower monumental each have 2 fishladders.
Lower granite dam has one fish ladder with entrances on both shores to provide a passage route for upstream migrating fish including adult salmon and steelhead lamprey shad and others.
We would like to show you a description here but the site won t allow us.
Opened 45 years ago in 1975 the dam is located 22 miles 35 km south of colfax and 35 miles 56 km north of pomeroy.
Jacks are not included in the count.
The lowered reservoir made the regular fish ladder facilities and counting equipment inoperable.
Passage routes operated for downstream migrating fish are the spillway a spillway weir and a juvenile bypass system.
Lower granite dam fisheries research idaho department of fish and game by dalton d.
The lamprey adult passage counts at wells dam are not reflective of actual run size during 2007 2008.
