Download or read book Migratory Timing and Distribution of Kenai River Chinook Salmon Using Radio Telemetry 2014 2015 written by Tony Eskelin and published by . This book was released on 2017 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The migratory timing and distribution of Kenai River Chinook salmon was examined using radio telemetry for 2014 and 2015. Spawning destinations were determined for 153 Chinook salmon in 2014 and 39 in 2015. Radiotagging data since 2010 are presented with data from 2014 and 2015 when appropriate. Of the Chinook salmon radiotagged during the early run in 2014, 81% (SE 4%) spawned in tributaries (range 72-85% since 2010). Radiotagged tributary-spawning Chinook salmon primarily spawned in the Killey River, Benjamin Creek, and Funny River during all years. Estimated Killey River Chinook salmon escapements based on weir passage and radiotag distribution within the Killey River drainage ranged from 3,564 (SE 500) to 3,934 (SE 627) during 2012-2015. In 2014, all but 2 Chinook salmon radiotagged during the late run (after 30 June) spawned in the mainstem of the Kenai River. The highest proportion of radiotagged mainstem spawners in 2014 were downstream of the Soldotna Bridge at RM 21 (39% SE 6%) and between the Moose River confluence at river mile (RM) 36.3 and Skilak Lake outlet at RM 50 (36% SE 6%). During 2012-2014, an average of 4.0% (SE 1.2%) of assigned mainstem spawning destinations were downstream of the RM 13.7 Chinook salmon sonar. For tributary spawners during 2010-2014, 69% and 95% were in waters with existing closures and restrictions upstream of Slikok Creek on July 1 and July 15, respectively. On 1 July, 23% of tributary spawners were in waters open to fishing upstream of Slikok Creek and 8% were downstream of Slikok Creek. In July, mainstem-spawning Chinook salmon radiotagged in 2012-2014 were primarily (51-59%) in waters open to fishing downstream of Slikok Creek; the rest were upstream: 23-30% in unrestricted waters and 12-20% in closed or restricted waters.
Download or read book Migratory Timing and Distribution of Kenai River Chinook Salmon 2010 2013 written by Adam M. Reimer and published by . This book was released on 2013 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The migratory timing and distribution of Kenai River chinook salmon was examined using radio telemetry for early-run and late-run chinook salmon during the 2010-2013 seasons.
Download or read book Estimation of Chinook Salmon Distribution and Run Timing in the Togiak River Watershed Using Radio Telemetry Togiak National Wildlife Refuge Alaska 2008 written by Cheryl A. Anderson and published by . This book was released on 2009 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kenai River Chinook Salmon Abundance and Migratory Timing written by Adam M. Reimer and published by . This book was released on 2013 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary purpose of this research is to provide an estimate of Chinook salmon abundance entering the Kenai River that is independent of existing sonar programs. These estimates of abundance will be used, in conjunction with sonar based estimates of abundance to develop escapement goals for Kenai River Chinook salmon. A secondary purpose of this research is to monitor Chinook salmon migration within the Kenai River drainage for the purpose of informing management decisions with respect to time and area.
Download or read book Estimation of Abundance and Distribution of Chinook Salmon in the Yukon River Using Mark recapture and Radio Telemetry in 2000 and 2001 written by Ted R. Spencer and published by . This book was released on 2003 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this multi-year (1999-2002) cooperative study between the Alaska Department of Fish and Game and the National Marine Fisheries Service was to determine the migratory characteristics and escapement distribution of Yukon River chinook salmon. Primary objectives in 2000 and 2001 were to assess and refine fish capture and radio-tracking methods for a full-scale program in 2002, and to estimate drainage-wide population size using mark-recapture techniques.
Download or read book Migratory Behavior Run Timing and Distribution of Radio tagged Adult Spring Chinook Salmon in the Willamette River 2011 written by M. A. Jepson and published by . This book was released on 2012 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The objectives of this study were to determine the basic behavior, distribution, and migration success of adult spring Chinook salmon through the main stem Willamette River and to evaluate their exposure to potentially high water temperatures that may contribute to prespawn mortality. From 2 May through 8 July 2011, we intragastrically radio-tagged 150 Chinook salmon at Willamette Falls Dam and released them back into the fishway upstream from the trap. Almost all (97%) radio-tagged salmon also received an archival temperature logger. An additional 100 salmon were tagged with archival temperature loggers only. Run timing of the run-at-large and the radio-tagged sample was relatively late in 2011 compared to the ten year average and the late timing was associated with high flow and cool temperatures in 2011."--From executive summary (page iii).
Download or read book Stock specific Abundance and Run Timing of Chinook Salmon in the Kenai River 2007 2014 written by Adam M. Reimer and published by . This book was released on 2017 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: A stock-specific abundance and run timing model (SSART) was fit to relative and absolute estimates of abundance, genetic stock identification data, radiotelemetry data, and estimates of harvest for Kenai River Chinook salmon (Oncorhynchus tshawytscha) from 2007 to 2014. The methods follow a model of the 2007-2012 data except that inference is restricted to Chinook salmon 75 cm mid eye to tail fork (METF) or longer for all results in this report. Bayesian statistical methods were employed to estimate inriver abundance and run timing by stock at river mile 8.6 of the Kenai River. Abundance of early-run Chinook salmon ranged from 1,940 (SE 307) in 2013 to 8,637 (SE 2,215) in 2007. Abundance of late-run Chinook salmon ranged from 9,949 (SE 2,138) in 2010 to 37,180 (SE 10,340) in 2007. Fish from Killey River-Benjamin Creek, Funny River-Slikok Creek, and Quartz-Crescent creeks migrated upstream primarily prior to 30 June; fish from Grant Creek and Russian River migrated upstream primarily between 16 June and 31 July; and fish from Mainstem Kenai River-Juneau Creek migrated upstream primarily after 16 June. Tributary stocks had greater relative abundance within the run before 16 June and the Mainstem-Juneau Creek stock had greater relative abundance after 30 June. Between 16 June and 30 June, tributary stocks had greater relative abundance in 6 of 8 years while Mainstem-Juneau Creek fish had greater relative abundance in the other 2 years.
Download or read book Estimation of Chinook Salmon Escapement Distribution and Run Timing in the Togiak River Watershed Using Radiotelemetry Togiak National Wildlife Refuge Alaska 2012 written by U.S. Fish and Wildlife Service. Anchorage Fish and Wildlife Field Office and published by . This book was released on 2014 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of Radio Telemetry to Study Upriver Migration of Adult Klamath River Chinook Salmon written by Jonathan Heifetz and published by . This book was released on 1982 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Migratory Assessment of Spring Chinook Salmon in the Lostine River Using Radio telemetry Techniques written by James R. Harbeck and published by . This book was released on 2014 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Radio telemetry was used to determine the migration behavior of adult Chinook salmon in the Lostine River during the 2010, 2011 and 2012 return years. The purpose of the study was to assess potential impediments to upstream passage and examine other characteristics of migrating salmon as they moved toward their spawning grounds. One hundred and fifty eight fish were tagged during the course of the study at the Lostine River weir site. One hundred and fifteen of those fish supplied relevant data for assessment. Fixed telemetry sites and stream flows at specific irrigation diversions were monitored during the migration season. Mobile telemetry surveys were also conducted to detect tagged fish between and above fixed sites. The Tulley Hill, Clearwater, Lostine and Sheep Ridge diversions were not complete barriers to migrating salmon during stream flows experienced by fish in 2010, 2011 and 2012. Passage delay was observed in terms of time needed to cross over the structures in all years. Fish were able to pass over the Clearwater Diversion during stream flows as low as 22 cfs in 2010 and required a mean time of 7 hours and 32 minutes to pass over the structure. Fish were able to pass over the Tulley Hill diversion during stream flows as low as 33 cfs in 2011 and 15 cfs in 2012. They required a mean time of 9 hours and 56 minutes to pass over the structure in 2011 and 7 hours and 18 minutes in 2012. Fish arriving at the Lostine Diversion passed the structure during flows as low as 24 cfs in 2011 and 21 cfs in 2012. They required a mean time of 3 hours and 28 minutes and 3 hours and 20 minutes respectively. Fish were able to pass over the Sheep Ridge Diversion during stream flows as low as 37 cfs in 2010, 48 cfs in 2011 and 25 cfs in 2012. The mean duration of upstream passage over the Sheep Ridge Diversion was 29 hours and 21 minutes in 2010, 3 hours and 12 minutes in 2011 and 12 hours in 2012. The majority of tagged fish were able to pass above the diversion structures on the first attempt in all years. Salmon moved upstream during all hours of the day with the exception of the early hours of initial day light. Fish moving upstream of the weir traveled an average of 9.4 km after release. Males tended to migrate further distances than females. Some males and females made extensive "up and down" stream movements. Migration travel rates between reaches were different in all years. Fish moving upstream through the lower reaches of the Lostine River traveled slower than through the upper reaches. Fish arriving at the Lostine River weir during the later part of the run moved faster upstream than earlier arriving fish. Final tag locations did not correspond to typical Lostine spawning locations. The relationship between when a salmon enters the Lostine River and where it eventually spawns is not yet clear."--Abstract.
Download or read book Gulkana River Chinook Salmon Spawning Distribution and Run Timing 2013 2015 written by Corey J. Schwanke and published by . This book was released on 2018 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chinook salmon were radiotagged near the confluence of the Gulkana and Copper rivers from 2013-2015 to determine run timing and spawning distribution in the Gulkana River. The main goal was estimating what proportion of the Chinook salmon escapement spawned above an ADF&G operated counting tower located approximately 79.5 rkm up the Gulkana River. Age, sex, and length composition of the escapement was also estimated. A total of 412 Chinook salmon were radiotagged from 2013?2015 using dip nets and hook and line as capture gear. The proportion of Chinook salmon that spawned above the ADF&G counting tower was 0.51 (SE = 0.072) in 2013, 0.45 (SE = 0.073) in 2014, and 0.54 (SE = 0.038) in 2015. Fish spawning above the ADF&G counting tower had a slightly earlier run timing than fish spawning below the counting tower with annual mean dates of passage past the lowest inriver tracking station being 0?7 days earlier. Further examining run timing by river reach, Chinook salmon that spawned in the tributaries and upper mainstem of the Gulkana River had earlier run timing than those spawning in the middle to lower mainstem. The estimated percentage of females that spawned above the counting tower varied by year. Females comprised an estimated 53% (SE = 6%) of the escapement in 2013, 29% (SE = 10%) in 2014, and 51% (SE = 4%) in 2015. Age-1.3 Chinook salmon was the most abundant age class, accounting for 81% (SE = 5%) of the estimated escapement in 2013, 48% (SE = 6%) in 2014, and 88% (SE = 3%) in 2015. Chinook salmon in the length class 751-850 mm mid eye to tail fork accounted for the majority of the estimated annual escapement, ranging between 46% (SE = 6%) and 63% (SE = 4%). This study found several positive relationships with fish traits (e.g., sex, length, and run timing) and spawning success specific to the Gulkana River. Male fish, longer fish, and fish with earlier run timings all had better chances of spawning during this study.
Download or read book Kenai River Juvenile Chinook Salmon Distribution and Habitat Utilization written by Alaska. Division of Fisheries Rehabilitation, Enhancement, and Development and published by . This book was released on 1984 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stock Specific Abundance and Run Timing of Chinook Salmon in the Kenai River 2007 2012 written by Adam M. Reimer and published by . This book was released on 2016 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: A stock-specific abundance and run timing model (SSART) was fit to relative and absolute estimates of abundance, genetic stock identification data, radiotelemetry data, and creel survey estimates of harvest for Kenai River Chinook salmon (Oncorhynchus tshawytscha) from 2007 to 2012. Bayesian statistical methods were employed to estimate inriver abundance and run timing by stock at river mile 8.6 of the Kenai River. Abundance of early-run Chinook salmon ranged from 6,739 (SE 819) in 2012 to 12,300 (SE 2,087) in 2007. Abundance of late-run Chinook salmon ranged from 22,190 (SE 3,815) in 2010 to 48,370 (SE 8,641) in 2007. Tributary stocks had greater relative abundance within the run before 15 June and the Mainstem-Juneau Creek stock had greater relative abundance after 15 June. Fish from Killey River–Benjamin Creek, Funny River-Slikok Creek, and Quartz-Crescent creeks migrated upstream primarilyduring the first 3 of 6 time strata; fish from Grant Creek and Russian River migrated upstream primarily during the third through fifth time strata; and fish from Mainstem Kenai River-Juneau Creek migrated upstream primarily during the last 3 time strata.
Download or read book Inriver Abundance Spawning Distribution and Migratory Timing of Copper River Chinook Salmon in 2001 written by James William Savereide and published by . This book was released on 2002 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inriver Abundance Spawning Distribution and Migratory Timing of Copper River Chinook Salmon in 2000 written by Klaus G. Wuttig and published by . This book was released on 2001 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chinook Salmon Passage in the Kenai River at River Mile 13 7 Using Adaptive Resolution Imaging Sonar 2014 written by James D. Miller and published by . This book was released on 2016 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2014, Kenai River Chinook salmon (Oncorhynchus tshawytscha) passage was estimated using Adaptive Resolution Imaging Sonar (ARIS) at river mile 13.7. Net upstream passage of Chinook salmon greater than or equal to 75 cm as measured by ARIS was estimated to be 2,397 (SE 132) during the early run (16 May-30 June) and 10,871 (SE 291) during the late run (1 July-15 August). Net upstream passage of all Chinook salmon regardless of size was estimated to be 5,768 (SE 359) during the early run and 16,871 (SE 580) during the late run.
Download or read book Inriver Abundance Spawning Distribution and Migratory Timing of Copper River Chinook Salmon in 1999 written by Matthew J. Evenson and published by . This book was released on 2000 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
