Download or read book Yukon River Salmon Enumeration Eagle AK 2022 written by Jody D. Lozori and published by . This book was released on 2022 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: Both the Alaska Department of Fish and Game (ADF&G) and the Canadian Department of Fisheries and Oceans (DFO) actively manage Chinook salmon Oncorhynchus tshawytscha and fall chum salmon O. keta fisheries in the Yukon River. Alaska is obligated to manage Canadian-origin Yukon River Chinook and fall chum salmon stocks according to precautionary, abundance-based harvest-sharing principles set by the Yukon River Salmon Agreement (Yukon River Panel 2004). This negotiated agreement represents an international commitment to the restoration, conservation, and management of Yukon River salmon, and is based on escapement management . Of importance to salmon management on the Yukon River is the ability to accurately assess the numbers of Chinook and fall chum salmon migrating through the U.S./Canada border. This project employs split-beam and imaging sonar equipment on the Yukon River to generate inseason passage estimates of Chinook and fall chum salmon migrating across the U.S./Canada border. Additionally, drift gillnetting is conducted daily to monitor species composition, and to collect biological data used in characterizing Chinook and fall chum salmon runs. The project is located approximately 30 km downstream from the U.S./Canada Border (Figures 1 and 2) and is scheduled to operate continuously from approximately July 1 through October 10 annually. This project has been fully operational since 2006 (Dunbar and Crane 2007).
Download or read book Yukon River Salmon 2021 Season Summary and 2022 Season Outlook written by Yukon River Joint Technical Committee and published by . This book was released on 2022 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Yukon River Joint Technical Committee (JTC) of the United States and Canada meets twice a year to analyze and discuss harvest and escapement goals, management trends, postseason reviews, preseason outlooks, and results of cooperative research projects for Canadian-origin Yukon River salmon. This report summarizes the status of Chinook Oncorhynchus tshawytscha, coho O. kisutch, and summer and fall chum salmon O. keta stocks in 2021, presents a 2022 season outlook, and provides data about salmon harvests in commercial, subsistence, First Nations, personal use, domestic, and sport or public angling fisheries. Summaries of Yukon River research projects are also included. For 2021, the preliminary estimate of Chinook salmon (mainstem) spawning escapement in Canada was 31,452 fish, which was below the interim management escapement goal (IMEG) range of 42,500–55,000 fish. A preliminary estimate of the total Canadian-origin Chinook salmon run was 32,972 fish. The preliminary estimate of fall chum salmon spawning escapement in the Canadian mainstem Yukon River was approximately 23,170 fish, which was below the IMEG range of 70,000–104,000 fish. The preliminary estimate of fall chum salmon spawning escapement in the Fishing Branch River (Porcupine River), obtained from a weir count was 2,413 fish, which was below the IMEG range of 22,000–49,000 fish. Recommended interim management escapement goals for Canadian-origin mainstem fall chum salmon and Fishing Branch (Porcupine River) fall chum salmon in 2022 remain the same as for 2021. The JTC recommended a new escapement goal for Canadian-origin Yukon River Chinook salmon of 52,500 with an acceptable deviation range of 42,500–62,500. The Yukon River Panel will be presented with the new Chinook salmon escapement goal recommendation for consideration at their 2022 pre-season meeting.
Download or read book Sonar Estimation of Chinook and Fall Chum Salmon Passage in the Yukon River Near Eagle Alaska 2022 written by Michael J. McDougall and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adaptive resolution imaging sonar (ARIS) and split-beam sonar equipment were used to estimate Chinook salmon Oncorhynchus tshawytscha and fall chum salmon O. keta passage in the Yukon River near Eagle, Alaska, from June 29 through October 6, 2022. A total of 12,025 (SE 119) Chinook salmon were estimated to have passed the sonar site from July 1 through August 21. The midpoint of the Chinook salmon migration occurred on July 29, which was 5 days later than the historical mean date. A total of 21,063 (SE 164) fall chum salmon were estimated to have passed the sonar site from August 22 through October 6. The fall chum salmon passage estimate was subsequently expanded to a total of 22,075 to include fish that may have passed after operations ceased. The midpoint of the fall chum salmon migration (based on the expanded estimate) occurred on September 20, which was 3 days earlier than the historical mean date. Drift gillnetting was conducted to collect age, sex, and length samples and tissue samples for genetic information. Species composition was analyzed to determine when the Chinook salmon migration ended and the fall chum salmon migration began.
Download or read book Yukon River Salmon Stock Status and Salmon Fisheries 2022 written by Deena M. Jallen and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides the Alaska Board of Fisheries with information on Yukon Area salmon stock status, including escapement and harvest data for the January 2023 regulatory meeting. In response to the guidelines established in the Policy for the Management of Sustainable Salmon Fisheries (5 AAC 39.222), the Alaska Board of Fisheries (board) classified the Yukon River Chinook salmon Oncorhynchus tshawytscha stock as a stock of yield concern at its September 2000 work session. An action plan was developed by the Alaska Department of Fish and Game and acted upon by the board in January 2001. The status as a yield concern was continued for Yukon River Chinook salmon at the January 2004, 2007, 2010, 2013, 2016, and 2019 board meetings. Chinook salmon escapement goal performance has been mixed throughout the past 5 years (2018–2022) throughout the Alaska portion of the Yukon River drainage, but escapement goals were not met from 2020 to 2022. Conservative management actions taken inseason have included full subsistence fishery closures to protect low runs as they migrate upriver. Additionally, Yukon River summer chum, fall chum O. keta, and coho salmon O. kisutch recently experienced a drastic decline since 2020. Most escapement goals for chum and coho salmon have not been achieved since 2020 despite significant subsistence, personal use, and commercial fishing restrictions and closures. Historically, the Yukon River chum and coho salmon stocks have met or exceeded escapement goals and provided for subsistence, personal use, and commercial fisheries, with a few exceptions of decreased production in a couple tributaries.
Download or read book Yukon River Comprehensive Salmon Plan for Alaska written by Dan Senecal-Albrecht and published by . This book was released on 1998 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sonar Estimation of Chinook and Fall Chum Salmon Passage in the Yukon River Near Eagle Alaska 2021 written by Naomi B. Brodersen and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adaptive resolution imaging sonar (ARIS) and split-beam sonar equipment were used to estimate Chinook salmon Oncorhynchus tshawytscha and fall chum salmon O. keta passage in the Yukon River near Eagle, Alaska, from June 28 through October 6, 2021. A total of 31,796 (SE 207) Chinook salmon were estimated to have passed the sonar site from June 28 through August 31. The midpoint of the Chinook salmon migration occurred on July 29, which was 5 days later than the historical mean date. A total of 19,668 (SE 243) fall chum salmon were estimated to have passed the sonar site from September 1 through October 6. The fall chum salmon passage estimate was subsequently expanded to a total of 23,170 to include fish that may have passed after operations ceased. The midpoint of the fall chum salmon migration (based on the expanded estimate) occurred on September 27, which was 4 days later than the historical mean date. Drift gillnetting was conducted to collect age, sex, and length samples and tissue samples for genetic information. Species composition was analyzed to determine when the Chinook salmon migration ended and the fall chum salmon migration began.
Download or read book Sonar Estimation of Chinook and Fall Chum Salmon Passage in the Yukon River Near Eagle Alaska 2020 written by Michael J. McDougall and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adaptive resolution imaging sonar (ARIS) and split-beam sonar equipment were used to estimate Chinook salmon Oncorhynchus tshawytscha and fall chum salmon O. keta passage in the Yukon River near Eagle, Alaska, from July 1 through October 6, 2020. A total of 33,550 (SE 219) Chinook salmon were estimated to have passed the sonar site from July 1 through August 27. The midpoint of the Chinook salmon migration occurred on July 29, which was 5 days later than the historical mean date. A total of 20,766 (SE 177) fall chum salmon were estimated to have passed the sonar site from August 28 through October 6. The fall chum salmon passage estimate was subsequently expanded to a total of 23,512 to include fish that may have passed after operations ceased. The midpoint of the fall chum salmon migration (based on the expanded estimate) occurred on September 24, which was 1 day later than the historical mean date. Drift gillnetting was conducted to collect age, sex, and length samples and tissue samples for genetic information. Species composition was analyzed to determine when the Chinook salmon migration ended and the fall chum salmon migration began.
Download or read book Yukon River Salmon 2020 Season Summary and 2021 Season Outlook written by Yukon River Joint Technical Committee and published by . This book was released on 2021 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Yukon River Joint Technical Committee (JTC) of the United States and Canada meets twice a year to analyze and discuss harvest and escapement goals, management trends, postseason reviews, preseason outlooks, and results of cooperative research projects for Canadian-origin Yukon River salmon. This report summarizes the status of Chinook Oncorhynchus tshawytscha, coho O. kisutch, and summer and fall chum salmon O. keta stocks in 2020, presents a 2021 season outlook, and provides data about salmon harvests in commercial, subsistence, aboriginal, personal use, domestic, and sport or recreational fisheries. Summaries of Yukon River research projects are also included. For 2020, the preliminary estimate of Chinook salmon (mainstem) spawning escapement in Canada was 30,967 fish, which was below the interim management escapement goal (IMEG) range of 42,500–55,000 fish. A preliminary estimate of the total Canadian-origin Chinook salmon run was 45,501 fish. The preliminary estimate of fall chum salmon spawning escapement in the Canadian mainstem Yukon River was approximately 23,512 fish, which was below the IMEG range of 70,000–104,000 fish. The preliminary estimate of fall chum salmon spawning escapement in the Fishing Branch River (Porcupine River), obtained from a weir count was 4,795 fish, which was below the IMEG range of 22,000–49,000 fish. Recommended interim management escapement goals for Canadian-origin mainstem Yukon River Chinook and fall chum salmon and Fishing Branch (Porcupine River) fall chum salmon in 2021 remain the same as for 2020.
Download or read book Sonar Estimation of Chinook and Fall Chum Salmon Passage in the Yukon River Near Eagle Alaska 2019 written by Michael J. McDougall and published by . This book was released on 2020 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adaptive resolution imaging sonar (ARIS) and split-beam sonar equipment were used to estimate Chinook salmon Oncorhynchus tshawytscha and fall chum salmon O. keta passage in the Yukon River near Eagle, Alaska from July 1 through October 6, 2019. A total of 45,560 (SE = 274) Chinook salmon were estimated to have passed the sonar site from July 1 through August 14. The midpoint of the Chinook salmon migration occurred on July 26, which was 2 days later than the historical mean date. A total of 101,678 (SE = 544) fall chum salmon were estimated to have passed the sonar site from August 15 through October 6. The fall chum salmon passage estimate was subsequently expanded to a total of 113,256 to include fish that may have passed after operations ceased. The midpoint of the fall chum salmon migration (based on the expanded estimate) occurred on September 25, which was 2 days later than the historical mean date. Drift gillnetting was conducted to collect age, sex, and length samples and tissue samples for genetic information. Species composition was analyzed to determine when the Chinook salmon migration ended, and the fall chum salmon migration began.
Download or read book Hydroacoustic Enumeration of Salmon Escapement to the Yukon River in 1985 written by David C. Mesiar and published by . This book was released on 1986 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This program coupled hydroacoustic fish counting techniques with gill net species apportionment methods to permit daily estimation of the number of fish passing a site located 196.8 km ... from the river mouth. Fish were counted on both banks of the river between 22 June and 26 August, 1985, and species apportionment was estimated for each bank over several days of counts"--P. v.
Download or read book Enumeration of Spawning Salmon in Aquatic Systems Along the Alaska Highway Gas Pipeline in Southern Yukon Territory 1980 written by David A. Fernet and published by . This book was released on 1980 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report of study of chinook and chum salmon spawning areas in watercourses crossed by Alaska Highway gas pipeline and in watercourses where pipeline crosses tributary streams which enter system where salmon spawn within influence of discharges from these tributaries. Purpose to aid in protection planning for pipeline construction.
Download or read book Beans Bullets and Black Oil written by Worrall Reed Carter and published by . This book was released on 1953 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alaska s Constitution written by Alaska Legislative Affairs Agency and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Spell of the Sensuous written by David Abram and published by Vintage. This book was released on 2012-10-17 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Winner of the International Lannan Literary Award for Nonfiction Animal tracks, word magic, the speech of stones, the power of letters, and the taste of the wind all figure prominently in this intellectual tour de force that returns us to our senses and to the sensuous terrain that sustains us. This major work of ecological philosophy startles the senses out of habitual ways of perception. For a thousand generations, human beings viewed themselves as part of the wider community of nature, and they carried on active relationships not only with other people with other animals, plants, and natural objects (including mountains, rivers, winds, and weather patters) that we have only lately come to think of as "inanimate." How, then, did humans come to sever their ancient reciprocity with the natural world? What will it take for us to recover a sustaining relation with the breathing earth? In The Spell of the Sensuous David Abram draws on sources as diverse as the philosophy of Merleau-Ponty, Balinese shamanism, Apache storytelling, and his own experience as an accomplished sleight-of-hand of magician to reveal the subtle dependence of human cognition on the natural environment. He explores the character of perception and excavates the sensual foundations of language, which--even at its most abstract--echoes the calls and cries of the earth. On every page of this lyrical work, Abram weaves his arguments with a passion, a precision, and an intellectual daring that recall such writers as Loren Eisleley, Annie Dillard, and Barry Lopez.
Download or read book Climatic Change and Global Warming of Inland Waters written by Charles R. Goldman and published by John Wiley & Sons. This book was released on 2012-11-20 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effects of global warming on the physical, chemical, ecological structure and function and biodiversity of freshwater ecosystems are not well understood and there are many opinions on how to adapt aquatic environments to global warming in order to minimize the negative effects of climate change. Climatic Change and Global Warming of Inland Waters presents a synthesis of the latest research on a whole range of inland water habitats – lakes, running water, wetlands – and offers novel and timely suggestions for future research, monitoring and adaptation strategies. A global approach, offered in this book, encompasses systems from the arctic to the Antarctic, including warm-water systems in the tropics and subtropics and presents a unique and useful source for all those looking for contemporary case studies and presentation of the latest research findings and discussion of mitigation and adaptation throughout the world. Edited by three of the leading limnologists in the field this book represents the latest developments with a focus not only on the impact of climate change on freshwater ecosystems but also offers a framework and suggestions for future management strategies and how these can be implemented in the future. Limnologists, Climate change biologists, fresh water ecologists, palaeoclimatologists and students taking relevant courses within the earth and environmental sciences will find this book invaluable. The book will also be of interest to planners, catchment managers and engineers looking for solutions to broader environmental problems but who need to consider freshwater ecology.
Download or read book Intestinal Microorganisms of Termites and Other Invertebrates written by Helmut König and published by Springer Science & Business Media. This book was released on 2006 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first work to focus on microbes in gut systems of soil animals. Beginning with an overview of the biology of soil invertebrates, the text turns to the gut microbiota of termites, which are important soil processors in tropical and subtropical regions. Coverage extends to intestinal microbiota of such other litter decomposers as earthworms, springtails, millipedes, and woodlice. Thoroughly illustrated, including color photographs.
Download or read book Integrated Natural Resources Management written by Lawrence K. Wang and published by Springer Nature. This book was released on 2021-02-11 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book has been designed to serve as a natural resources engineering reference book as well as a supplemental textbook. This volume is part of the Handbook of Environmental Engineering series, an incredible collection of methodologies that study the effects of resources and wastes in their three basic forms: gas, solid, and liquid. It complements two other books in the series including "Natural Resources and Control Processes" and "Environmental and Natural Resources Engineering". Together they serve as a basis for advanced study or specialized investigation of the theory and analysis of various natural resources systems. The purpose of this book is to thoroughly prepare the reader for understanding the topics of global warming, climate change, glacier melting, salmon protection, village-driven latrines, engineers without borders (USA), surface water quality analysis, electrical and electronic wastes treatment, water quality control, tidal rivers and estuaries, geographic information systems, remote sensing applications, water losses investigations, wet infrastructure, lake restoration, acidic water control, biohydrogen production, mixed culture dark anaerobic fermentation, industrial waste recycle, agricultural waste recycle, recycled adsorbents, heavy metals removal, magnetic technology, recycled biohydrogen materials, lignocellulosic biomass, extremely halotolerant bacterial communities, salt pan and salt damaged soil. The chapters provide information on some of the most innovative and ground-breaking advances in resources conversation, protection, recycling, and reuse from a panel of esteemed experts.
