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Author : Matthew J. Belnap
Publisher :
ISBN 13 :
Total Pages : 65 pages
Book Rating : 4.:/5 (18 download)
Download or read book Idaho Anadromous Emigrant Monitoring 2017 Annual Report written by Matthew J. Belnap and published by . This book was released on 2018 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Amber N. Young
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (142 download)
Download or read book Idaho Anadromous Emigrant Monitoring written by Amber N. Young and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: During 2022, Idaho Department of Fish and Game monitored emigration of wild juvenile Chinook Salmon Oncorhynchus tshawytscha and steelhead O. mykiss at ten rotary screw traps(RST) in the Salmon River basin and five in the Clearwater River basin. In the Salmon basin, with the exception of Rapid River where abundance could not be estimated, total estimated abundance of Chinook Salmon emigrants varied from 2,606 to 137,104 fish (n = 9). In the Clearwater River basin, abundance of Chinook Salmon emigrants could only be estimated for spring age-1 fish at the Crooked River RST (663 fish) and for spring age-1 and fall age-0 fish at the Lochsa River RST (4,530 fish). Abundance of juvenile steelhead emigrants were estimated for at least one trapping period for all RSTs that operated in 2022. Total abundance estimates of juvenile steelhead varied from 1,493 to 26,573 fish in the Salmon River basin and from 823 to 30,554 fish in the Clearwater River basin. Productivity of juvenile Chinook Salmon emigrants at RSTs and of smolts that survived to Lower Granite Dam (LGR) were estimated at all RSTs except the Rapid River site in the Salmon River basin and could not be estimated at any RST sites in the Clearwater River basin. Productivity of Chinook juveniles in the Salmon River basin at RSTs for brood year(BY) 2020 varied from 201 emigrants per female spawner in the Lemhi River to 1,736 emigrants per female spawner in Big Creek. Productivity of smolts from the Salmon River basin at LGR forBY2020 varied from 13 smolts per female spawner from Hayden Creek to 835 smolts per female spawner from Big Creek. Juvenile steelhead productivity for BY2017 at trapping sites in the Salmon River basin varied from 76 emigrants per female spawner in the lower Lemhi River to 554emigrants per female spawner in the upper Lemhi River. Juvenile steelhead productivity forBY2017 in the Clearwater River basin varied from 138 emigrants per female spawner in Fish Creek to 959 emigrants per female spawner in East Fork Potlatch River. Productivity of juvenile steelhead from Crooked River could not be estimated for BY 2017. The pairing of adult and juvenile abundance data provided insight into the variation in habitat and stock characteristics for Chinook Salmon and steelhead populations throughout Idaho.
Author : Stacey F. Feeken
Publisher :
ISBN 13 :
Total Pages : 61 pages
Book Rating : 4.:/5 (126 download)
Download or read book Idaho Anadromous Emigrant Monitoring written by Stacey F. Feeken and published by . This book was released on 2020 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: During 2019, Idaho Department of Fish and Game monitored emigration of wild juvenile Chinook Salmon and steelhead at ten rotary screw traps in the Salmon River basin and five in the Clearwater River basin. Estimated abundance of Chinook Salmon emigrants varied from 8,212 to 128,607 fish in the Salmon basin (n = 9 traps) and was 2,526 fish at Crooked River trap, the only trap in the Clearwater River basin where an estimate for Chinook Salmon was possible. Estimated abundance of Chinook Salmon for the BY2017 cohort (trapped during 2018 and spring 2019) varied from 2,086 to 8,949 fish in the Salmon River basin (n = 9 traps) and was 305 fish at the Crooked River trap. Estimated abundance of steelhead emigrants in 2019 varied from 944 to 18,870 fish in the Salmon River basin (n = 9 traps) and from 283 to 6,864 fish in the Clearwater River basin (n = 4 traps). For both species, emigrant estimates are paired with adult spawner estimates. We present adult-to-juvenile productivity for both species where data were available. Estimated adult-to-juvenile productivity of Chinook Salmon at trapping locations for BY2017 varied from 126 to 2,567 emigrants per female spawner in the Salmon River basin (n = 10 traps) and 306 emigrants per female spawner at Crooked River. Chinook productivity of smolts to Lower Granite Dam for BY2017 varied from 51 to 1,112 smolts per female spawner from the Salmon River basin (n = 10 traps) and 184 smolts per female spawner from Crooked River. Steelhead productivity at trapping locations from BY2014 varied from 0 to 714 emigrants per female in the Salmon River basin (n = 6 traps) and from 0 to 501 emigrants per female in the Clearwater River basin (n = 4 traps). Differences in productivity among populations within major population groups as well as differences among major population groups was observed along with density dependence, with fewer juveniles per female surviving as female abundance increased. The pairing of adult and juvenile abundance data provided insight into the variation in habitat and stock characteristics for Chinook Salmon and steelhead trout populations throughout Idaho. Information gathered helps support recreational fisheries and guides the implementation of future habitat restoration projects.
Author : Conor McClure
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (134 download)
Download or read book Idaho Anadromous Emigrant Monitoring written by Conor McClure and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Javier Lobon-Cervia
Publisher : Springer Nature
ISBN 13 : 3031443896
Total Pages : 733 pages
Book Rating : 4.0/5 (314 download)
Download or read book Advances in the Ecology of Stream-Dwelling Salmonids written by Javier Lobon-Cervia and published by Springer Nature. This book was released on with total page 733 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Scott Putnam
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (134 download)
Download or read book Idaho Anadromous Parr Monitoring written by Scott Putnam and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexa Ballinger
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (142 download)
Download or read book Idaho Anadromous Parr Monitoring written by Alexa Ballinger and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Idaho Department of Fish and Game (IDFG) monitors occupancy, density, and spatial structure of anadromous salmonid parr and resident fish using snorkel surveys. In this report, we summarize snorkel methods and results from 2022 surveys. Idaho Department of Fish and Game crews surveyed 369 total snorkel transects in the Clearwater and Salmon River basins in 2022.Survey transects are classified as either core (n = 149), non-core/resident trend (n = 37), or intensive (n = 183). No extensive sites were surveyed in 2022. Mean density of steelhead Oncorhynchus mykiss across core transects in the Clearwater River basin (n = 50) was 3.5 fish per 100m 2 (SD = 4.0) while mean density of Chinook Salmon O. tshawytscha was 1.3 fish per100m 2 (SD = 3.6). Steelhead occupied 80% (0.8) and Chinook Salmon occupied 40% (0.4) of sites snorkeled in the Clearwater basin. Mean density of steelhead in the Salmon River basin (n= 96) was 1.9 fish per 100m 2 (SD = 3.9) while mean density of Chinook Salmon was 1.5 fish per100m 2 (SD = 3.0). Steelhead occupied 70% (0.7) and Chinook Salmon occupied 50% (0.5) of sites snorkeled in the Salmon Basin. At intensive transects, mean steelhead density was 1.0 fish per 100m 2 (SD = 1.3; occupancy = 0.5) in the Clearwater River basin, ranging from a low of 0.3fish per 100m 2 (SD = 1.0; occupancy = 0.3) in the Potlatch River subbasin to a high of 2.4 fish per100m 2 (SD = 2.3; occupancy = 0.9) in the Fish Creek subbasin. Mean Chinook Salmon density in the Clearwater basin was 0.9 fish per 100m 2 (SD = 2.4; occupancy = 0.1), ranging from zero observed Chinook in the Potlatch and Fish Creek subbasins to 2.6 fish per 100m 2 (SD = 7.3;occupancy = 0.3) in the Crooked River subbasin. At intensive transects in the Salmon River basin, mean steelhead density was 1.9 fish per 100m 2 (SD = 2.7; occupancy = 0.6), ranging from a low of 0.8 fish per 100m 2 (SD = 1.7 fish per 100m 2) in the Marsh Creek subbasin to a high of 2.8 fish per 100m 2 (SD = 2.6 fish per 100m 2) in the Rapid River subbasin. Mean Chinook Salmon density in the Salmon River basin was 0.9 fish per 100m2 (SD = 2.1; occupancy = 0.3), ranging from a low of
Author :
Publisher :
ISBN 13 :
Total Pages : 62 pages
Book Rating : 4.:/5 (685 download)
Download or read book Idaho Habitat and Natural Production Monitoring Part III, 1993 Annual Report written by and published by . This book was released on 1994 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effective management of wild anadromous fisheries is partly dependent on defining relationships between escapement and production. These productivity relationships (or reproduction curves) depend on the nature of density-dependent mechanisms that control the population. Inherent is developing any relationship is specifying the fish population of interest and what is meant by escapement and production by that population. This report is a summary of sampling programs at all existing and proposed anadromous fish weirs in Idaho as of fall 1992. Only permanent or semi-permanent structures where long-term data could be collected are included. The summary is stratified by class of fish and by cell or drainage using the same classifications as the Idaho Anadromous Fish Management Plan. Included in the summary are escapement objectives above the existing and proposed weirs. Recommendations based on this summary were developed to provide coverage for all classes and most major drainages, yet minimize cost and duplication of efforts. this was a usefull approach as some chinook salmon weirs were identified that could be modified to monitor steelhead trout.
Author : C. E. Petrosky
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (259 download)
Download or read book Evaluation and Monitoring of Idaho Habitat Enhancement and Anadromous Fish Natural Production written by C. E. Petrosky and published by . This book was released on 198? with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (685 download)
Download or read book State of Idaho Augmented Anadromous Fish Health Monitoring, 1987 Annual Report written by and published by . This book was released on 1988 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The anadromous fish health monitoring program began in full operation in January 1988 after the hiring of the lead pathologist. This short operating period limits the amount of information available at the time of this writing. Pre-release sampling of smolts revealed the presence of several sub-clinical pathogens. Organosomatic analysis results demonstrated no major abnormalities in the examined stocks. The results of the 1988 steelhead broodstock sampling are still pending.
Author : Charles Edward Petrosky
Publisher :
ISBN 13 :
Total Pages : 172 pages
Book Rating : 4.:/5 (417 download)
Download or read book Evaluation and Monitoring of Idaho Habitat Enhancement and Anadromous Fish Natural Production written by Charles Edward Petrosky and published by . This book was released on 1987 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 201 pages
Book Rating : 4.:/5 (727 download)
Download or read book Idaho Habitat and Natural Production Monitoring written by and published by . This book was released on 1991 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Project 83-7 was established under the Northwest Power Planning Council's 1982 Fish and Wildlife Program to monitor natural production of anadromous fish, evaluate Bonneville Power Administration (BPA) habitat improvement projects, and develop a credit record for off-site mitigation projects in Idaho. Project 83-7 is divided into two subprojects: general and intensive monitoring. Primary objectives of the general monitoring subproject (Part 1) are to determine natural production increases due to habitat improvement projects in terms of parr production and to determine natural production status and trends in Idaho. The second objective is accomplished by combining parr density data from monitoring and evaluation of BPA habitat projects and from other Idaho Department of Fish and Game (IDFG) management and research activities. Primary objectives of the intensive monitoring subproject (Part 2) are to determine the number of returning chinook and steelhead adults necessary to achieve optimal smolt production and to develop mitigation accounting based on increases in smolt production. Two locations are being intensively studied to meet these objectives. Field work began in 1987 in the upper Salmon River and Crooked River (South Fork Clearwater River tributary). 22 refs., 10 figs., 17 tabs.
Author : Charles E. Petrosky
Publisher :
ISBN 13 :
Total Pages : 173 pages
Book Rating : 4.:/5 (795 download)
Download or read book Evaluation and Monitoring of Idaho Habaitat Enhancement and Anadromous Fish Natural Production written by Charles E. Petrosky and published by . This book was released on 1987 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Judy A. Hall-Griswold
Publisher :
ISBN 13 :
Total Pages : 61 pages
Book Rating : 4.:/5 (447 download)
Download or read book Idaho Habitat/natural Production Monitoring, Part 1 written by Judy A. Hall-Griswold and published by . This book was released on 1995 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bruce A. Rich
Publisher :
ISBN 13 :
Total Pages : 125 pages
Book Rating : 4.:/5 (422 download)
Download or read book Idaho Habitat & Natural Production Monitoring, Part I written by Bruce A. Rich and published by . This book was released on 1993 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bruce A. Rich
Publisher :
ISBN 13 :
Total Pages : 125 pages
Book Rating : 4.:/5 (961 download)
Download or read book Idaho Habitat/natural Production Monitoring written by Bruce A. Rich and published by . This book was released on 1993 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Bureau of Sport Fisheries and Wildlife
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 ( download)
Download or read book Sport Fish Restoration written by United States. Bureau of Sport Fisheries and Wildlife and published by . This book was released on 1957 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
