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Book Chinook Salmon Passage in the Kenai River at River Mile 13 7 Using Adaptive Resolution Imaging Sonar 2013

Download or read book Chinook Salmon Passage in the Kenai River at River Mile 13 7 Using Adaptive Resolution Imaging Sonar 2013 written by James D. Miller and published by . This book was released on 2016 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2013, Kenai River Chinook salmon (Oncorhynchus tshawytscha) passage was estimated using Adaptive Resolution Imaging Sonar (ARIS) at a newly established site at river mile 13.7. Medium and large Chinook salmon (greater than or equal to 75 cm as measured by ARIS) were directly assessed by the sonar, yielding net upstream passage estimates of 1,724 (SE 93) during the early run (17 May-30 June) and 12,656 (SE 282) during the late run (1 July-17 August). Smaller Chinook salmon (less than 75 cm ARIS length) overlap in size with other species; thus a combination of sonar, netting, telemetry, and weir data from this and other projects are required for assessing the abundance of all Kenai River Chinook salmon regardless of size. During the 2013 early run, telemetry and weir data were used to obtain a net upstream passage estimate of 2,806 (SE 341) small Chinook salmon; this estimate was combined with the ARIS estimate of medium and large Chinook salmon for a total of 4,530 (SE 353) Chinook salmon regardless of size. During the late run, a mixture model was fitted to sonar and netting data to obtain a net upstream passage estimate of 19,373 (SE 583) Chinook salmon regardless of size.

Book Estimates of Chinook Salmon Passage in the Kenai River at River Mile 8 6 Using Dual frequency Identification Sonar 2012

Download or read book Estimates of Chinook Salmon Passage in the Kenai River at River Mile 8 6 Using Dual frequency Identification Sonar 2012 written by James D. Miller and published by . This book was released on 2015 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kenai River Chinook salmon (Oncorhynchus tshawytscha) passage was estimated in 2012 using dual-frequency identification sonar (DIDSON). Estimates of midriver Chinook salmon passage between and at least 3 m from the transducers were 3,228 (SE 191) fish for the early run (16 May-30 June) and 21,613 (SE 667) fish for the late run (1 July-15 August). DIDSON units temporarily deployed shoreward of the left and right bank transducers recorded large Chinook salmon (equal to or greater than 75 cm) migrating outside the standard insonified zone. The efficacy of installing sonar at river mile 13.7 was investigated and confirmed.

Book Operational Plan Kenai River Chinook Salmon Creel Survey and Inriver Netting Study 2021 2023

Download or read book Operational Plan Kenai River Chinook Salmon Creel Survey and Inriver Netting Study 2021 2023 written by Eric Wood and published by . This book was released on 2022 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: A creel survey will be conducted to estimate sport angler effort, catch, and harvest of large (≥75 cm mid eye to tail fork length) early- and late-run Chinook salmon in the lower Kenai River between the Warren Ames Bridge (river mile [RM] 5.1) and Slikok Creek sanctuary area (RM 18.6). Creel survey estimates will be geographically stratified in relation to the RM 13.7 Kenai River Chinook salmon sonar to provide angler effort, catch, and harvest of large Chinook salmon. A standardized inriver netting project will be conducted in the Kenai River at RM 8.6 to index abundance and estimate the age, sex, and length (ASL) composition of large early- and late-run Chinook salmon. Inseason estimates of Chinook salmon catch and harvest, used in conjunction with sonar passage estimates, inseason catch rates, and the length of returning Chinook salmon from the inriver netting study are used by fisheries managers for inseason management decisions to achieve escapement goals. This plan covers the creel survey and inriver netting studies for the 2021–2023 seasons.

Book Estimates of Chinook Salmon Passage in the Kenai River at River Mile 8 6 Using Dual frequency Identification Sonar 2013

Download or read book Estimates of Chinook Salmon Passage in the Kenai River at River Mile 8 6 Using Dual frequency Identification Sonar 2013 written by Brandon H. Key and published by . This book was released on 2016 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kenai River Chinook salmon (Oncorhynchus tshawytscha) passage was estimated in 2013 at RM 8.6 using dual-frequency identification sonar (DIDSON). Estimates of midriver Chinook salmon passage between and at least 3 m from the transducers were 1,439 (SE 138) fish for the early run (16 May-30 June) and 15,185 (SE 566) fish for the late run (1 July-15 August). The early-run estimate is too small to explain weir counts at upriver tributaries. Methods and results from a second experimental sonar site located above tidal influence at RM 13.7 are presented in a separate report.

Book Estimates of Chinook Salmon Passage in the Kenai River at River Mile 8 6 Using Dual frequency Identification Sonar 2014

Download or read book Estimates of Chinook Salmon Passage in the Kenai River at River Mile 8 6 Using Dual frequency Identification Sonar 2014 written by Brandon H. Key and published by . This book was released on 2016 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kenai River Chinook salmon (Oncorhynchus tshawytscha) passage was estimated in 2014 at RM 8.6 using dual-frequency identification sonar (DIDSON). Estimates of midriver Chinook salmon passage between and at least 3 m from the transducers were 4,862 (SE 338) fish for the early run (16 May-30 June) and 13,952 (SE 492) fish for the late run (1 July-15 August). Methods and result from a second experimental sonar site located above tidal influence at RM 13.7 are presented in a separate report.

Book Estimates of Chinook Salmon Abundance in the Kenai River Using Split beam Sonar 2004

Download or read book Estimates of Chinook Salmon Abundance in the Kenai River Using Split beam Sonar 2004 written by James D. Miller and published by . This book was released on 2007 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report discusses the results of estimating chinook salmon, Oncorhynchus tshawytscha, abundance in the Kenai River from 16 May through 5 August, 2004, using side-looking split-beam sonar technology.

Book Estimates of Chinook Salmon Passage in the Kenai River Using Split beam Sonar 2006

Download or read book Estimates of Chinook Salmon Passage in the Kenai River Using Split beam Sonar 2006 written by James D. Miller and published by . This book was released on 2010 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report discusses the results of estimating chinook salmon, Oncorhynchus tshawytscha, abundance in the Kenai River May-June and July-August 2006, using split-beam sonar technology.

Book Chinook Salmon Passage in the Kenai River at River Mile 13 7 Using Adaptive Resolution Imaging Sonar 2016

Download or read book Chinook Salmon Passage in the Kenai River at River Mile 13 7 Using Adaptive Resolution Imaging Sonar 2016 written by Brandon H. Key and published by . This book was released on 2019 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2016, 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 6,391 (SE 197) during the early run (16 May–30 June) and 17,447 (SE 403) during the late run (1 July–19 August). Net upstream passage of all Chinook salmon regardless of size was estimated to be 9,851 (SE 355) during the early run and 22,537 (SE 480) during the late run.

Book Estimates of Chinook Salmon Passage in the Kenai River Using Split beam and Dual frequency Identification Sonars 2010

Download or read book Estimates of Chinook Salmon Passage in the Kenai River Using Split beam and Dual frequency Identification Sonars 2010 written by James D. Miller and published by . This book was released on 2013 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report discusses the results of estimating chinook salmon (Oncorhynchus tshawytscha) abundance in the Kenai River May-June and July-August 2010, using split-beam sonar and experimental dual-frequency identification sonar (DIDSON) technology.