Results Of The 2010 Eastern And Northern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Fauna
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Results Of The 2010 Eastern And Northern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Fauna
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Author : Robert Russell Lauth
language : en
Publisher:
Release Date : 2011
Results Of The 2010 Eastern And Northern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Fauna written by Robert Russell Lauth and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Dredging (Fisheries) categories.
Climate Change Impacts On Fisheries And Aquaculture
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Author : Bruce F. Phillips
language : en
Publisher: John Wiley & Sons
Release Date : 2017-09-18
Climate Change Impacts On Fisheries And Aquaculture written by Bruce F. Phillips and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-18 with Technology & Engineering categories.
The first comprehensive review of the current and future effects of climate change on the world’s fisheries and aquaculture operations The first book of its kind, Climate Change Impacts on Fisheries and Aquaculture explores the impacts of climate change on global fisheries resources and on marine aquaculture. It also offers expert suggestions on possible adaptations to reduce those impacts. The world's climate is changing more rapidly than scientists had envisioned just a few years ago, and the potential impact of climate change on world food production is quite alarming. Nowhere is the sense of alarm more keenly felt than among those who study the warming of the world's oceans. Evidence of the dire effects of climate change on fisheries and fish farming has now mounted to such an extent that the need for a book such as this has become urgent. A landmark publication devoted exclusively to how climate change is affecting and is likely to affect commercially vital fisheries and aquaculture operations globally, Climate Change Impacts on Fisheries and Aquaculture provides scientists and fishery managers with a summary of and reference point for information on the subject which has been gathered thus far. Covers an array of critical topics and assesses reviews of climate change impacts on fisheries and aquaculture from many countries, including Japan, Mexico, South Africa, Australia, Chile, US, UK, New Zealand, Pacific Islands, India and others Features chapters on the effects of climate change on pelagic species, cod, lobsters, plankton, macroalgae, seagrasses and coral reefs Reviews the spread of diseases, economic and social impacts, marine aquaculture and adaptation in aquaculture under climate change Includes special reports on the Antarctic Ocean, the Caribbean Sea, the Arctic Ocean and the Mediterranean Sea Extensive references throughout the book make this volume both a comprehensive text for general study and a reference/guide to further research for fisheries scientists, fisheries managers, aquaculture personnel, climate change specialists, aquatic invertebrate and vertebrate biologists, physiologists, marine biologists, economists, environmentalist biologists and planners.
Results Of The 2009 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources
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Author : Robert Russell Lauth
language : en
Publisher:
Release Date : 2010
Results Of The 2009 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources written by Robert Russell Lauth and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Dredging (Fisheries) categories.
The Resource Assessment and Conservation Engineering Division of the Alaska Fisheries Science Center conducts annual bottom trawl surveys to monitor the condition of the demersal fish and crab stocks of the eastern Bering Sea continental shelf. The standard study area encompasses a major portion of the eastern Bering Sea shelf between the 20-m and the 200-m isobaths and from the Alaska Peninsula north to approximately the latitude of St. Matthew Island (60°50'N). In 2009, two chartered trawlers, the 40-m FV Arcturus and the 40-m FV Aldebaran, surveyed this area. Demersal populations were sampled by trawling for 30 minutes at stations centered within 37.04 x 37.04 km (20 x 20 nautical mile) grids covering the survey area. At each station, species composition of the catch was determined, and length distributions and age structure samples were collected from ecologically and commercially important species. Three hundred seventy-six standard survey stations were sampled successfully. A total of 94 species of fishes representing 21 families and 62 genera, as well as 168 species of invertebrates representing 13 phyla, were identified in the catches from the entire survey area. The combined biomass of walleye pollock (Theragra chalcogramma), yellowfin sole (Limanda aspera), and rock sole (Lepidopsetta spp.) was 5.6 million metric tons (t) which was 63% of the total fish biomass. The biomass of invertebrates was composed primarily of echinoderms (1.5 million t) and crustaceans (0.71 million t). Survey results presented in this report include abundance estimates for fishes and invertebrates, geographic distributions and size composition of the more common fish species, and contour plots of surface and bottom temperatures during the survey sampling period. Appendices provide station data, summarized catch data by station, species listings, and detailed analyses of abundance and biological data of the sampled populations.
Results Of The 2016 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources
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Author : Jason Conner
language : en
Publisher:
Release Date : 2017
Results Of The 2016 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources written by Jason Conner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Fish populations categories.
The Resource Assessment and Conservation Engineering Division of the Alaska Fisheries Science Center conducts annual bottom trawl surveys to monitor the condition of the demersal fish and crab stocks of the eastern Bering Sea continental shelf. The standard study area encompasses a major portion of the eastern Bering Sea shelf (depths between 20 and 200 m) from the Alaska Peninsula north to approximately the latitude of St. Matthew Island (60° 50' N). In 2016, two chartered trawlers, the 38-m FV Vesteraalen and the 43.5-m FV Alaska Knight, surveyed this area. Demersal populations were sampled by trawling for 30 minutes at stations centered within 37.04 × 37.04 km (20 × 20 nautical miles (nmi)) grid cells covering the survey area. At each station, the species composition of the catch was determined, and length distributions and age structure samples were collected from ecologically and commercially important species. Three-hundred seventy-six standard survey stations were sampled successfully. A total of 94 fish taxa and 232 invertebrate taxa were identified in catches from the EBS survey. The combined estimated biomass of walleye pollock (Gadus chalcogrammus), Pacific cod (Gadus macrocephalus), yellowfin sole (Limanda aspera), and northern rock sole (Lepidopsetta polyxystra) was estimated to be 10.2 million metric tons (t), which was 82% of the total fish biomass. The biomass of invertebrates was composed primarily of echinoderms (1.6 million t) and crustaceans (0.7 million t). Survey results presented in this report include abundance estimates for fishes and invertebrates, geographic distributions and size compositions of selected fish species, and contour plots of surface and bottom temperatures during the survey sampling period. Appendices provide station data, catch data summarized by station, taxon listings, and details of size composition for various fish species of commercial interest. [doi:10.7289/V5/TM-AFSC-352 (https://doi.org/10.7289/V5/TM-AFSC-352)]
Results Of The 2008 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources
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Author : Robert Russell Lauth
language : en
Publisher:
Release Date : 2009
Results Of The 2008 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources written by Robert Russell Lauth and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Dredging (Fisheries) categories.
The Resource Assessment and Conservation Engineering Division of the Alaska Fisheries Science Center conducts annual bottom trawl surveys to monitor the condition of the demersal fish and crab stocks of the eastern Bering Sea continental shelf. The standard study area encompasses a major portion of the eastern Bering Sea shelf between the 20-m and the 200-m isobaths and from the Alaska Peninsula north to approximately the latitude of St. Matthew Island (60°50'N). In 2008, two chartered trawlers, the 40-m FV Arcturus and the 40-m FV Aldebaran surveyed this area. Demersal populations were sampled by trawling for 30 minutes at stations centered within 37.04 x 37.04 km (20 x 20 nautical mile) grids covering the survey area. At each station, species composition of the catch was determined, and length distributions and age structure samples were collected from ecologically and commercially important species. Three-hundred seventy-five of the 376 standard survey stations were sampled successfully. A total of 83 species of fishes representing 19 families and 54 genera as well as 174 species of invertebrates representing 12 phyla were identified in the catches from the entire survey area. The combined biomass of walleye pollock, yellowfin sole, and rock sole was 8.1 million metric tons (t) which was 75% of the total fish biomass. The biomass of invertebrates was composed primarily of echinoderms (1.6 million t) and crustaceans (0.75 million t). Survey results presented in this report include abundance estimates for fishes and invertebrates, geographic distributions and size composition of principal fish species, and contour plots of surface and bottom temperatures during the survey sampling period. Appendices provide station data, summarized catch data by station, species listings, and detailed analyses of abundance and biological data of the sampled populations.
Results Of The 2012 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources
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Author : Robert Russell Lauth
language : en
Publisher:
Release Date : 2013
Results Of The 2012 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources written by Robert Russell Lauth and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Dredging (Fisheries) categories.
The Resource Assessment and Conservation Engineering Division of the Alaska Fisheries Science Center conducts annual bottom trawl surveys to monitor the condition of the demersal fish and crab stocks of the eastern Bering Sea continental shelf. The standard study area encompasses a major portion of the eastern Bering Sea shelf between the 20-m and the 200-m isobaths and from the Alaska Peninsula north to approximately the latitude of St. Matthew Island (60°50'N). In 2012, two chartered trawlers, the 40-m FV Aldebaran and the 43.5-m FV Alaska Knight, surveyed this area. Demersal populations were sampled by trawling for 30 minutes at stations centered within 37.04 x 37.04 km (20 x 20 nautical mile) grids covering the survey area. At each station, species composition of the catch was determined, and length distributions and age structure samples were collected from ecologically and commercially important species. Three hundred seventy-six standard survey stations were sampled successfully. A total of 96 species of fishes representing 20 families and 61 genera, as well as 139 species of invertebrates representing 14 phyla, were identified in the catches from the entire survey area. The combined biomass of walleye pollock (Theragra chalcogramma), yellowfin sole (Limanda aspera), and northern rock sole (Lepidopsetta polyxystra) was 7.4 million metric tons (t) which was 68% of the total fish biomass. The biomass of invertebrates was composed primarily of echinoderms (1.9 million t) and crustaceans (0.93 million t). Survey results presented in this report include abundance estimates for fishes and invertebrates, geographic distributions and size compositions of the more common fish species, and contour plots of surface and bottom temperatures during the survey sampling period. Appendices provide station data, summarized catch data by station, species listings, and detailed analyses of abundance and biological data of the sampled populations.
Results Of The 2015 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources
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Author : Jason Conner
language : en
Publisher:
Release Date : 2017
Results Of The 2015 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources written by Jason Conner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Fish populations categories.
The Resource Assessment and Conservation Engineering Division of the Alaska Fisheries Science Center conducts annual bottom trawl surveys to monitor the condition of the demersal fish and crab stocks of the eastern Bering Sea continental shelf. The standard study area encompasses a major portion of the eastern Bering Sea shelf (depths between 20 and 200 m) from the Alaska Peninsula north to approximately the latitude of St. Matthew Island (60° 50' N). In 2015, two chartered trawlers, the 38-m FV Vesteraalen and the 43.5-m FV Alaska Knight, surveyed this area. Demersal populations were sampled by trawling for 30 minutes at stations centered within 37.04 × 37.04 km (20 × 20 naultical mile (nmi)) grids covering the survey area. At each station, species composition of the catch was determined, and length distributions and age structure samples were collected from ecologically and commercially important species. Three-hundred seventy-six standard survey stations were sampled successfully. A total of 101 fish species and 235 invertebrate taxa were identified in catches from the EBS survey. The combined biomass of walleye pollock (Gadus chalcogrammus), Pacific cod (Gadus macrocephalus), yellowfin sole (Limanda aspera), and northern rock sole (Lepidopsetta polyxystra) was estimated to be 10.8 million metric tons (t), which was 82% of the total fish biomass. The biomass of invertebrates was composed primarily of echinoderms (1.4 million t) and crustaceans (0.7 million t). Survey results presented in this report include abundance estimates for fishes and invertebrates, geographic distributions and size compositions of selected fish species, and contour plots of surface and bottom temperatures during the survey sampling period. Appendices provide station data, catch data summarized by station, taxon listings, and detailed analyses of abundance and biological data of the sampled populations. [doi:10.7289/V5/TM-AFSC-353 (https://doi.org/10.7289/V5/TM-AFSC-353)]
Results Of The 2012 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources
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Author : Robert Russell Lauth
language : en
Publisher:
Release Date : 2013
Results Of The 2012 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources written by Robert Russell Lauth and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Dredging (Fisheries) categories.
The Resource Assessment and Conservation Engineering Division of the Alaska Fisheries Science Center conducts annual bottom trawl surveys to monitor the condition of the demersal fish and crab stocks of the eastern Bering Sea continental shelf. The standard study area encompasses a major portion of the eastern Bering Sea shelf between the 20-m and the 200-m isobaths and from the Alaska Peninsula north to approximately the latitude of St. Matthew Island (60°50'N). In 2012, two chartered trawlers, the 40-m FV Aldebaran and the 43.5-m FV Alaska Knight, surveyed this area. Demersal populations were sampled by trawling for 30 minutes at stations centered within 37.04 x 37.04 km (20 x 20 nautical mile) grids covering the survey area. At each station, species composition of the catch was determined, and length distributions and age structure samples were collected from ecologically and commercially important species. Three hundred seventy-six standard survey stations were sampled successfully. A total of 96 species of fishes representing 20 families and 61 genera, as well as 139 species of invertebrates representing 14 phyla, were identified in the catches from the entire survey area. The combined biomass of walleye pollock (Theragra chalcogramma), yellowfin sole (Limanda aspera), and northern rock sole (Lepidopsetta polyxystra) was 7.4 million metric tons (t) which was 68% of the total fish biomass. The biomass of invertebrates was composed primarily of echinoderms (1.9 million t) and crustaceans (0.93 million t). Survey results presented in this report include abundance estimates for fishes and invertebrates, geographic distributions and size compositions of the more common fish species, and contour plots of surface and bottom temperatures during the survey sampling period. Appendices provide station data, summarized catch data by station, species listings, and detailed analyses of abundance and biological data of the sampled populations.
Results Of The 2013 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources
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Author : Jason Conner
language : en
Publisher:
Release Date : 2016
Results Of The 2013 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources written by Jason Conner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Fish populations categories.
The Resource Assessment and Conservation Engineering Division of the Alaska Fisheries Science Center conducts annual bottom trawl surveys to monitor the condition of the demersal fish and crab stocks of the eastern Bering Sea continental shelf. The standard study area encompasses a major portion of the eastern Bering Sea shelf (depths between 20 - 200 m) from the Alaska Peninsula north to approximately the latitude of St. Matthew Island (60° 50' N). In 2013, two chartered trawlers, the 40-m FV Aldebaran and the 43.5-m FV Alaska Knight, surveyed this area. Demersal populations were sampled by trawling for 30 minutes at stations centered within 37.04 × 37.04 km (20 × 20 nmi) grids covering the survey area. At each station, species composition of the catch was determined, and length distributions and age structure samples were collected from ecologically and commercially important species. Three-hundred seventy-six standard survey stations were successfully sampled. A total of 93 fish species and 256 invertebrate taxa were identified in catches from the EBS survey . The combined biomass of walleye pollock (Gadus chalcogrammus), yellowfin sole (Limanda aspera), and northern rock sole (Lepidopsetta polyxystra) was 8.6 million metric tons (t) which was 71% of the total fish biomass. The biomass of invertebrates was primarily composed of echinoderms (1.3 million t) and crustaceans (0.9 million t). Survey results presented in this report include abundance estimates for fishes and invertebrates, geographic distributions and size compositions of selected fish species, and contour plots of surface and bottom temperatures during the survey sampling period. Appendices provide station data, catch data summarized by station, taxon listings, and detailed analyses of abundance and biological data of the sampled populations. [doi:10.7289/V5/TM-AFSC-331 (http://dx.doi.org/10.7289/V5/TM-AFSC-331)]
Results Of The 2014 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources
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Author : Jason Conner
language : en
Publisher:
Release Date : 2017
Results Of The 2014 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Of Groundfish And Invertebrate Resources written by Jason Conner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Fish populations categories.
The Resource Assessment and Conservation Engineering Division of the Alaska Fisheries Science Center conducts annual bottom trawl surveys to monitor the condition of the demersal fish and crab stocks of the eastern Bering Sea continental shelf. The standard study area encompasses a major portion of the eastern Bering Sea shelf (depths between 20 - 200 m) from the Alaska Peninsula north to approximately the latitude of St. Matthew Island (60° 50' N). In 2014, two chartered trawlers, the 38-m FV Vesteraalen and the 43.5-m FV Alaska Knight, surveyed this area. Demersal populations were sampled by trawling for 30 minutes at stations centered within 37.04 × 37.04 km (20 × 20 nmi) grids covering the survey area. At each station, species composition of the catch was determined, and length distributions and age structure samples were collected from ecologically and commercially important species. Three-hundred seventy-six standard survey stations were sampled successfully. A total of 94 fish taxa and 224 invertebrate taxa were identified in catches from the EBS survey. The combined biomass of walleye pollock (Gadus chalcogrammus), yellowfin sole (Limanda aspera), and northern rock sole (Lepidopsetta polyxystra) was estimated to be 11.8 million metric tons (t) which was 76% of the total fish biomass. The biomass of invertebrates was composed primarily of echinoderms (1.3 million t) and crustaceans (1.0 million t). Survey results presented in this report include abundance estimates for fishes and invertebrates, geographic distributions and size compositions of selected fish species, and contour plots of surface and bottom temperatures during the survey sampling period. Appendices provide station data, catch data summarized by station, taxon listings, and detailed analyses of abundance and biological data of the sampled populations. [doi:10.7289/V5/TM-AFSC-350 (https://doi.org/10.7289/V5/TM-AFSC-350)]