Snake River Fall Chinook Salmon, Snake River Stock Program: Lyons Ferry Complex, Lyons Ferry Hatchery PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Snake River Fall Chinook Salmon, Snake River Stock Program: Lyons Ferry Complex, Lyons Ferry Hatchery PDF full book. Access full book title Snake River Fall Chinook Salmon, Snake River Stock Program: Lyons Ferry Complex, Lyons Ferry Hatchery by . Download full books in PDF and EPUB format.
Author:
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 77
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 77
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 144
Get Book Here
Book Description
Author: Glen Wesley Mendel
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 52
Get Book Here
Book Description
Author: Glen Wesley Mendel
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 59
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 64
Get Book Here
Book Description
Author: Robert Bugert
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 118
Get Book Here
Book Description
Author: Craig A. Busack
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 59
Get Book Here
Book Description
Author: Glen Wesley Mendel
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 42
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 101
Get Book Here
Book Description
This final report of the 3-year study summarizes activities and results for 1993. Study objectives were to: (1) determine the source of losses (or accounting errors) for adult chinook salmon between Ice Harbor Dam (IHR) and Lower Granite Dam (LGR), and upstream of LGR in the Snake River; (2) identify spawning locations upstream of LGR for calibration of aerial redd surveys, redd habitat mapping, carcass recovery for genetic stock profile analysis, and correction of estimated adult/redd ratios; and (3) estimate passage and migration times at Snake River. 200 fall chinook salmon were radio tagged and tracked with aerial, fixed-site, and ground mobile tracking. Fish were released upstream of IHR at Charbonneau Park (CHAR). 190 of the fish were tracked or relocated away from CHAR. 59 fish descended to below IHR without crossing Lower Monumental Dam (LMO). Another 128 salmon passed upstream of LMO without falling back at IHR. Only 80 salmon passed Little Goose Dam (LGO) without falling back at a downstream dam; 66 of these fish passed LGR. Many fish that fell back reascended the dams. A total of 72 salmon released at CHAR passed upstream of LGR, including fish that had fallen back and reascended a dam. Over 80 percent of the salmon that entered Lyons Ferry Hatchery each year had reached LGO before descending to the hatchery. Extensive wandering was documented between LMO and upstream of LGR before salmon entered Lyons Ferry Hatchery or the Tucannon River. In 1993, 41 salmon were found to be of hatchery origin when recovered. These fish entered Lyons Ferry Hatchery with similar movements to unmarked salmon. Each year a few salmon have remained near the hatchery without entering, which suggests the hatchery may have inadequate attraction flows. Fall chinook passed lower Snake River dams in 2-5 days each on average. Median travel times through LMO and LGO were 1.0-1.3 days each, which was slower than for spring chinook or steelhead in 1993. 5 refs., 21 figs., 20 tabs.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 104
Get Book Here
Book Description
We report results from four years (1998-2001) of an ongoing study of survival and travel time of subyearling fall chinook salmon in the Snake River. We report analyses of associations among river conditions and survival and travel time estimates, which include data from 1995 through 1997. At weekly intervals from early June to early July each year (mid-May to late June in 2001), hatchery-reared subyearling fall chinook salmon were PIT tagged at Lyons Ferry Hatchery, trucked upstream, acclimated, and released above Lower Granite Dam at Pittsburgh Landing and Billy Creek on the Snake River and at Big Canyon Creek on the Clearwater River. Each year, a small proportion of fish released were not detected until the following spring. However, the number that overwintered in the river and migrated seaward as yearlings the following spring was small and had minimal effect on survival estimates. Concurrent with our studies, a number of subyearling fall chinook salmon that reared naturally in the Snake River were caught by beach seine, PIT tagged, and released. We compared a number of characteristics of hatchery and wild fish. Hatchery and wild fish were similar in 2001, and from 1995 through 1997. Results for 1998 through 2000 showed some relatively large differences between hatchery and wild fish. However, recent information suggests that a considerable proportion of wild subyearling chinook salmon migrating in a given year may actually be stream-type (spring/summer), rather than ocean-type (fall) fish, which may account for some of the differences we have observed.
