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1990 And 1991 Southern District Kachemak Bay Dungeness Crab Pot Surveys Including Comparison To Trawl Survey Catch
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Book Synopsis 1990 and 1991 Southern District (Kachemak Bay) Dungeness Crab Pot Surveys, Including Comparison to Trawl Survey Catch by : Al Kimker
Download or read book 1990 and 1991 Southern District (Kachemak Bay) Dungeness Crab Pot Surveys, Including Comparison to Trawl Survey Catch written by Al Kimker and published by . This book was released on 1991 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Kachemak Bay Dungeness crab survey objectives were: identify the annual timing of the molt(s); document the percentage of soft shell males; document the sex, size and shellage of the catch, and the egg condition of all females; establish an index of abundance; document the incidental catch of king and Tanner crabs.
Book Synopsis Alaska Fishery Research Bulletin by :
Download or read book Alaska Fishery Research Bulletin written by and published by . This book was released on 1994 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bottom Trawl Surveys for Tanner Crab in Lower Cook Inlet and Prince William Sound 1990-2015, with Harvest Strategy Recommendations for Prince William Sound by : Kenneth James Goldman
Download or read book Bottom Trawl Surveys for Tanner Crab in Lower Cook Inlet and Prince William Sound 1990-2015, with Harvest Strategy Recommendations for Prince William Sound written by Kenneth James Goldman and published by . This book was released on 2018 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes bottom trawl survey data used to assess Tanner crab Chionoecetes bairdi abundance within the Alaska Department of Fish and Game's Central Region. Trawl surveys replaced pot surveys as the primary method of assessing Tanner crab in Central Region in the early 1990s. Data for the Central Region were collected from 2 management districts in the Lower Cook Inlet Management Area: 1) the Southern District (1990-2013), and 2) the Kamishak Bay and Barren Islands Districts (1990-2012). Data were also collected from the Prince William Sound Management Area (1991-2015). Since 1993 in the Southern District, and 1990 in the Kamishak Bay and Barren Islands Districts, the estimated abundance of legal male Tanner crab has not exceeded the minimum stock size threshold defined in regulation that is necessary to open a commercial fishery (Alaska Administrative Code 5 AAC 35.408). Bottom trawl survey methods have changed through the history of the survey and those changes are documented in this report. Abundance trends of legal and sublegal male and female Tanner crab are also described along with trends in recruitment. Analysis and harvest strategy recommendations to create a management plan for commercial and noncommercial Tanner crab fisheries in the Prince William Sound Management Area are presented.
Book Synopsis A Bottom Trawl Survey for Tanner Crab in Kachemak Bay, 2017 by : Wyatt J. Rhea-Fournier
Download or read book A Bottom Trawl Survey for Tanner Crab in Kachemak Bay, 2017 written by Wyatt J. Rhea-Fournier and published by . This book was released on 2020 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: A bottom trawl survey was conducted from August 29 to September 6, 2017, to estimate density and infer abundance of Tanner crab Chionoecetes bairdi in Kachemak Bay within the Southern District of the Cook Inlet Area. The survey was conducted aboard ADF&G's research vessel Pandalus using a 400-mesh Eastern otter trawl (large-mesh trawl). The survey caught 1,481 male Tanner crab of which 137 (9%) were of legal size (114 mm carapace width or greater) to produce a mean CPUE of 10.13 crab/nmi (CV = 0.52) and yielded an abundance estimate of 124,965 legal crab. Legal male Tanner crab were caught at 11 of the 38 stations with 90% of the total legal males caught at only 5 stations. The survey caught 1,350 female Tanner crab of which 348 (26%) were mature to produce a mean CPUE of 24.08 crab/nmi (CV = 0.50) and yielded an abundance estimate of 297,126 mature crab. Abundance estimates of legal male and mature female Tanner crab were well below the long-term average of the survey time series.
Book Synopsis A Bottom Trawl Survey for Tanner Crab in Kachemak Bay, 2018 and 2019 by : Wyatt J. Rhea-Fournier
Download or read book A Bottom Trawl Survey for Tanner Crab in Kachemak Bay, 2018 and 2019 written by Wyatt J. Rhea-Fournier and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A bottom trawl survey was conducted in 2018 and 2019 to estimate density and infer abundance of Tanner crab Chionoecetes bairdi in Kachemak Bay. The survey was conducted aboard the Alaska Department of Fish and Game (ADF&G) research vessel Pandalus using a 400-mesh Eastern otter trawl (large-mesh trawl). In 2018, the survey caught 12,568 male Tanner crab of which 348 were of legal size, ≥114mm (4.5 in), to produce a mean catch per unit effort (CPUE) of 18.06 legal-size crab/nmi and yielded an abundance estimate of 222,852 legal-size crab. In 2019, the survey caught 1,682 male Tanner crab of which 421 were of legal size to produce a mean CPUE of 22.17 legal-size crab/nmi and yielded an abundance estimate of 273,511 legal-size crab. The 2017, 2018, and 2019 survey results produced a 3-year mean of 207,109 legal-size male crab which allowed the standard noncommercial fisheries to occur for the 2019–2020 season. In 2018, the survey caught 4,193 female Tanner crab of which 1,566 were mature to produce a mean CPUE of 82.25 mature female crab/nmi and yielded an abundance estimate of 1,014,869 mature female crab. In 2019, the survey caught 2,660 female Tanner crab of which 2,295 were mature to produce a mean CPUE of 120.66 mature female crab/nmi and yielded an abundance estimate of 1,488,880 mature female crab. Abundance estimates of legal-size male Tanner crab were slightly above the long-term mean, and mature female Tanner crab were substantially above the long-term mean of the survey time series.
Book Synopsis Dungeness Crab Pot Survey and Spatial Monitoring of Sea Otter Bycatch in Ugak Bay, the Trinity Islands, and Alitak Bay in the Kodiak Area, 2014 by : Carrie L. Worton
Download or read book Dungeness Crab Pot Survey and Spatial Monitoring of Sea Otter Bycatch in Ugak Bay, the Trinity Islands, and Alitak Bay in the Kodiak Area, 2014 written by Carrie L. Worton and published by . This book was released on 2016 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alaska Department of Fish and Game (ADF&G) conducted a pot survey for Dungeness crab Metacarcinus magister in the Kodiak Area during August - September 2014 and collaborated with U.S. Fish and Wildlife Service (USFWS) to evaluate sea otter Enthydra lutris kenyoni bycatch in the Kodiak Area Dungeness crab fishery by concurrently performing transect surveys for sea otters and monitoring their presence and interaction with survey pot gear. A total of 650 pot lifts were performed using commercial Dungeness crab pots fished in 3 areas important for the Kodiak Area commercial Dungeness crab fishery: Ugak Bay (300 pot lifts), Alitak Bay (250 pot lifts), and the Trinity Islands (100 pot lifts). One-half of the pots fished in each area were fished with the escape rings closed. A total of 3,272 Dungeness crab were captured during the pot survey. Catch per pot lift (CPUE) of sublegal males and females by pots with closed escape rings was significantly (P = 0.004) higher than by pots with open escape rings; the effect of escape ring configuration on CPUE of legal males was not significant (P = 0.337). The CPUE of each sex-size class varied significantly (P
Book Synopsis Large-mesh Bottom Trawl Survey of Crab and Groundfish: Kodiak, Chignik, South Peninsula, and Eastern Aleutian Management Districts, 2021 by : Kally Spalinger
Download or read book Large-mesh Bottom Trawl Survey of Crab and Groundfish: Kodiak, Chignik, South Peninsula, and Eastern Aleutian Management Districts, 2021 written by Kally Spalinger and published by . This book was released on 2022 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes results from the large-mesh bottom trawl survey that took place June through September 2021 to assess crab and groundfish resources in the Kodiak, Chignik, South Peninsula, and Eastern Aleutian Tanner crab Chionoecetes bairdi management Districts. A total of 337 trawl hauls were conducted to assess relative abundance and condition of commercially important crabs, as well as spatial distribution, species composition, size frequency, and catch per unit effort of commercially important groundfish. Survey estimates indicated that mature and legal male Tanner crab abundances were sufficient to support commercial fisheries in 3 sections of the Kodiak District, the Chignik District, and both sections of the South Peninsula District. Red king crab Paralithodes camtschaticus abundance estimates in each of the surveyed management areas remain too low to consider opening a red king crab commercial fishery. Arrowtooth flounder Atheresthes stomias, flathead sole Hippoglossoides elassodon, walleye pollock Gadus chalcogrammus, and yellowfin sole Limanda aspera, were the dominant groundfish captured during the survey. report summarizes results from the large-mesh bottom trawl survey that took place June through September 2020 to assess crab and groundfish resources in the Kodiak, Chignik, and South Peninsula Tanner crab Chionoecetes bairdi management districts. A total of 348 trawl hauls were conducted to assess relative abundance and condition of commercially important crabs, as well as spatial distribution, species composition, size frequency, and catch per unit effort of commercially important groundfish. Survey estimates indicated that mature and legal male Tanner crab abundances were not sufficient to support commercial fisheries in the districts. Red king crab Paralithodes camtschaticus abundance estimates in each of the surveyed management areas remain too low to consider opening a red king crab commercial fishery. Arrowtooth flounder Atheresthes stomias, flathead sole Hippoglossoides elassodon, walleye pollock Gadus chalcogrammus, and yellowfin sole Limanda aspera, were the dominant groundfish captured during the survey.
Book Synopsis Navigating Troubled Waters by : James R. Mackovjak
Download or read book Navigating Troubled Waters written by James R. Mackovjak and published by . This book was released on 2010 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Global Invader by : Sylvia Behrens Yamada
Download or read book Global Invader written by Sylvia Behrens Yamada and published by . This book was released on 2001 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Writing to educate those concerned with sea life in the Pacific Northwest, Yamada (zoology, Oregon State U., Corvallis) traces the generally devastating impact of the invasive European green crab with reference to research carried out in New England, California, Oregon, South Africa, Australia, and Tasmania. A full description of the biology and life history of the European green crab is provided, along with photos, glossary, list of references, and descriptive table of Pacific Northwest crabs. Annotation copyrighted by Book News, Inc., Portland, OR.
Book Synopsis A History of Kachemak Bay by : Janet R. Klein
Download or read book A History of Kachemak Bay written by Janet R. Klein and published by . This book was released on 1981 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spans the millennium from the geologic origins of Kachemak Country to the late 1940s when the local communities were economically stable.
Book Synopsis Fishes of the Salish Sea by : Theodore W. Pietsch
Download or read book Fishes of the Salish Sea written by Theodore W. Pietsch and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fishes of the Salish Sea is the definitive guide to the identification and history of the marine and anadromous fishes of Puget Sound and the Straits of Georgia and Juan de Fuca. This comprehensive three-volume set, featuring striking illustrations of the Salish Sea's 260 fish species by noted illustrator Joseph Tomelleri, details the ecology and life history of each species and recounts the region's rich heritage of marine research and exploration. Beginning with jawless hagfishes and lampreys and ending with the distinctive Ocean Sunfish, leading scientists Theodore Wells Pietsch and James Orr present the taxa in phylogenetic order, based on classifications that reflect the most current scientific knowledge. Illustrated taxonomic keys facilitate fast and accurate species identification. These in-depth, thoroughly documented, and yet accessible volumes will prove invaluable to marine biologists and ecologists, natural resource managers, anglers, divers, students, and all who want to learn about, marvel over, and preserve the vibrant diversity of Salish Sea marine life. Comprehensive accounts of 260 fish species Brilliant color plates of all treated species Illustrated taxonomic keys for easy species identification In-depth history of Salish Sea research and exploration
Book Synopsis King Crabs of the World by : Bradley G. Stevens
Download or read book King Crabs of the World written by Bradley G. Stevens and published by CRC Press. This book was released on 2014-03-18 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: With species existing in all subpolar seas, king crabs are one of the most valuable seafoods. Major fluctuations in their abundance have stimulated a flurry of research and a rapid expansion of the scientific literature in the last decade. King Crabs of the World: Biology and Fisheries Management consolidates extensive knowledge on the biology, sys
Book Synopsis The Gulf Ecosystem by : Nuzrat Yar Khan
Download or read book The Gulf Ecosystem written by Nuzrat Yar Khan and published by . This book was released on 2002 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Coastal Condition Report by : Kevin Summers
Download or read book National Coastal Condition Report written by Kevin Summers and published by . This book was released on 2001 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Crabs in Cold Water Regions by : A. J. Paul
Download or read book Crabs in Cold Water Regions written by A. J. Paul and published by Alaska Sea Grant College Program. This book was released on 2002 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt: An international group of specialists presented these 53 papers at the sixth crab symposium in the Lowell Wakefield symposium series at the U. of Alaska in January of 2001. The main themes include crab life cycles, reproductive biology and behavior, recruitment and population dynamics, fisheries and stock assessment, environment and habitat, and fisheries management. Individual papers present the results of research on topics that include the bitter crab syndrome in Tanner crab, re-stratification of red king crab assessment, population structure of blue king crab, habitat use by juvenile crabs, the impact of the European green crab in the Pacific, and use of tag recapture data to estimate natural mortality. Annotation copyrighted by Book News, Inc., Portland, OR.
Book Synopsis The Bering Sea Ecosystem by : National Research Council
Download or read book The Bering Sea Ecosystem written by National Research Council and published by National Academies Press. This book was released on 1996-05-08 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bering Sea, which lies between the United States and Russia, is one of the most productive ecosystems in the world and has prolific fishing grounds. Yet there have been significant unexplained population fluctuations in marine mammals and birds in the region. The book examines the Bering Sea ecosystem's dynamics and the relationship between man and the ecosystem, in order to identify potential reasons for the population fluctuations as well as identify ways the Sea's living resources can be better managed by government.
Book Synopsis Sound Truth and Corporate Myth$ by : Riki Ott
Download or read book Sound Truth and Corporate Myth$ written by Riki Ott and published by . This book was released on 2005 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Riki Ott exposes the profound legacy of the Exxon Valdez oil spill and how readers can help reshape our global energy future. The author chronicles the long-lasting environmental harm to Prince William Sound, Alaska, and investigates the health problems suffered by many cleanup workers. Exxon's spill provided a portal to understanding a startling truth: oil is much more toxic than we previously thought. Sound Truth and Corporate Myth$ frames the larger story of discovery of the truly toxic nature of oil. This book shows how one particular fraction of crude oil, polycyclic aromatic hydrocarbons or PAHs, may well be the new DDT of the 21st century. In 1999, the U.S. Environmental Protection Agency listed 22 PAHs in crude oil as "persistent, bioaccumulative, and toxic (PBT) pollutants." Sharing this list of extreme human health hazards are the more commonly known pollutants--mercury, lead, dioxin, PCBs, and DDT. The latter are all highly regulated chemicals and some, such as DDT and PCBs, have been banned in the United States. Sound Truth and Corporate Myth$ traces 15 years of lingering harm to humans and wildlife from the Exxon Valdez oil spill. It reveals how corporate greed, government short-sightedness, and manipulation of the truth and the media have kept the public from learning the deadly nature of PAHs. The author provides relevant information and practical recommendations for people and policy-makers at this critical juncture in the history of civilization. This book will inspire people to reduce their own consumption of fossil fuels and, in so doing, help permanently shift society to a clean energy future.
