Impacts Of Trawling And Scallop Dredging On Benthic Habitats And Communities
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Impacts Of Trawling And Scallop Dredging On Benthic Habitats And Communities
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Author : Svein Løkkeborg
language : en
Publisher: Food & Agriculture Org.
Release Date : 2005
Impacts Of Trawling And Scallop Dredging On Benthic Habitats And Communities written by Svein Løkkeborg and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Business & Economics categories.
This publication examines recent experimental studies of the impact of towed fishing gears, such as trawls and scallop dredges, on benthic habitats and communities (organisms that live at or near the bottom of the sea). The review gives a critical evaluation of the methodological limitations of impact studies, given the complexity and natural variability of benthic communities.
Effects Of Trawling And Dredging On Seafloor Habitat
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2002-08-09
Effects Of Trawling And Dredging On Seafloor Habitat written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-08-09 with Science categories.
Concerns over the potential ecological effects of fishing have increased with the expansion of fisheries throughout the marine waters of the United States. Effects of Trawling and Dredging on Seafloor Habitat describes how assessment of fishing impacts depends on gear type, number and location of bottom tows, and the physical and biological characteristics of seafloor habitats. Many experimental studies have documented acute, gear-specific effects of trawling and dredging on various types of habitat. These studies indicate that low mobility, long-lived species are more vulnerable to towed fishing gear than short-lived species in areas where the seabed is often disturbed by natural phenomena. Trawling and dredging may also change the composition and productivity of fish communities dependent on seafloor habitats for food and refuge. The scale of these impacts depends on the level of fishing effort. This volume presents color maps of fishing effort for all regions with significant bottom trawl or dredge fisheries-the first time that such data has been assembled and analyzed for the entire nation.
Bottom Trawling And Scallop Dredging In The Arctic
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Author : Nordic Council of Ministers
language : en
Publisher: Nordic Council of Ministers
Release Date : 2007
Bottom Trawling And Scallop Dredging In The Arctic written by Nordic Council of Ministers and has been published by Nordic Council of Ministers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Arctic Ocean categories.
Effects Of Trawling And Dredging On Seafloor Habitat
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2002-07-09
Effects Of Trawling And Dredging On Seafloor Habitat written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-07-09 with Science categories.
Concerns over the potential ecological effects of fishing have increased with the expansion of fisheries throughout the marine waters of the United States. Effects of Trawling and Dredging on Seafloor Habitat describes how assessment of fishing impacts depends on gear type, number and location of bottom tows, and the physical and biological characteristics of seafloor habitats. Many experimental studies have documented acute, gear-specific effects of trawling and dredging on various types of habitat. These studies indicate that low mobility, long-lived species are more vulnerable to towed fishing gear than short-lived species in areas where the seabed is often disturbed by natural phenomena. Trawling and dredging may also change the composition and productivity of fish communities dependent on seafloor habitats for food and refuge. The scale of these impacts depends on the level of fishing effort. This volume presents color maps of fishing effort for all regions with significant bottom trawl or dredge fisheries-the first time that such data has been assembled and analyzed for the entire nation.
Impacts Of Trawling And Scallop Dredging On Benthic Habitats And Communities
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Author : Svein Løkkeborg
language : en
Publisher: FAO
Release Date : 2005
Impacts Of Trawling And Scallop Dredging On Benthic Habitats And Communities written by Svein Løkkeborg and has been published by FAO this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Business & Economics categories.
This publication examines recent experimental studies of the impact of towed fishing gears, such as trawls and scallop dredges, on benthic habitats and communities (organisms that live at or near the bottom of the sea). The review gives a critical evaluation of the methodological limitations of impact studies, given the complexity and natural variability of benthic communities.
The State Of World Fisheries And Aquaculture 2004
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Author : Food and Agriculture Organization of the United Nations
language : en
Publisher: Food & Agriculture Org.
Release Date : 2004
The State Of World Fisheries And Aquaculture 2004 written by Food and Agriculture Organization of the United Nations and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Business & Economics categories.
This biennial report sets out a comprehensive review of world fisheries and aquaculture, as well as examining selected policy issues including capture-based aquaculture, labour standards, fisheries management and CITES, trade issues, depleted stocks recovery, deep-water fisheries, production forecasts to 2030, fisheries subsidies, and fishing capacity. Findings include that developments in world fisheries and aquaculture during recent years have continued to follow the trends that were already becoming apparent at the end of the 1990s, with capture fisheries production stagnating, aquaculture output expanding and growing concerns with regard to safeguarding the livelihoods of fishers and the sustainability of both commercial catches and the aquatic ecosystem from which they are extracted.
The Atlantic Walrus
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Author : Xénia Keighley
language : en
Publisher: Academic Press
Release Date : 2021-06-17
The Atlantic Walrus written by Xénia Keighley and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-17 with Nature categories.
The Atlantic Walrus: Multidisciplinary insights into human-animal interactions addresses the key dimensions of long-term human walrus interactions across the Atlantic Arctic and subarctic regions, over the past millennia. This book brings together research from across the social and natural sciences to explore walrus biology, human culture, environmental conditions and their reciprocal effects. Together, 13 chapters of this book reconstruct the early evolution of walruses, walrus biology, the cultural significance and ecological impact of prehistoric and indigenous hunting practices, as well as the effects of commercial hunting and international trade. This book also examines historic and ongoing management strategies and, the importance of new research methodologies in revealing hitherto unknown details of the past, and concludes by discussing the future for Atlantic walruses in the face of climate change and increased human activities in the Arctic. This volume is an ideal resource for those who are seeking to understand an iconic Arctic species and its long and complex relationship with humans. This includes individuals and researchers with a personal or professional connection to walruses or the Arctic, as well as marine biologists, zoologists, conservationists, paleontologists, archaeologists, anthropologists, historians, indigenous communities, natural resource managers and government agencies. Provides succinct overviews of the biology of the Atlantic Walrus (Odobenus rosmarus rosmarus) as well as human cultures within the North Atlantic Arctic and the surrounding region by consolidating research which until now has been scattered across fields and academic publications Editorial team of inter-disciplinary researchers ensuring the breadth, depth and integration of material covered throughout the volume Thirteen chapters, each authored by leading international researchers and experts on the Atlantic Walrus Considers the inter-relatedness and complexity of species biology, ecological change, human culture, and anthropogenic pressures onto the Atlantic Walrus, all while remaining accessible to readers from different disciplines or a more generalist audience Draws upon the latest methods in marine mammal and archaeological research Assesses historical management of the species, while also considering current and future conservation efforts in light of human activities and climate change Text supported by striking and insightful new maps and scientific illustrations, ideal for teaching and outreach
Options To Mitigate Bottom Habitat Impact Of Dragged Gears
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Author : John Willy Valdemarsen
language : en
Publisher: Food & Agriculture Org.
Release Date : 2007
Options To Mitigate Bottom Habitat Impact Of Dragged Gears written by John Willy Valdemarsen and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Technology & Engineering categories.
Describes the basic principles that can be used to reduce the impact of trawling, some of which are already developed as practical solutions and implemented in commercial fisheries. These basic mitigation measures aim at reducing pressure on the bottom of various trawl components and minimising the impacted area while trawling.
Scallops
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Author : Sandra E. Shumway
language : en
Publisher: Elsevier
Release Date : 2016-06-07
Scallops written by Sandra E. Shumway and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-07 with Technology & Engineering categories.
Scallops: Biology, Ecology, Aquaculture and Fisheries, Third Edition, continues its history as the definitive resource on scallops, covering all facets of scallop biology, including anatomy, taxonomy, physiology, ecology, larval biology, and neurobiology. More than thirty extensive chapters explore both fisheries and aquaculture for all species of scallops in all countries where they are fished or cultured. This treatise has been updated to include the most recent advances in research and the newest developments within the industry. As aquaculture remains one of the fastest-growing animal food-producing sectors, this reference becomes even more vital. It has all the available information on scallops needed to equip researchers to deal with the unique global issues in the field. Offers 30 detailed chapters on the development and ecology of scallops Provides chapters on various cultures of scallops in China, Japan, Scandinavia, Europe, Eastern North America, and Western North America Includes details of scallop reproduction, nervous system, and behavior, genetics, diseases, parasites, and much more Completely updated edition with valuable information on one of the most widely distributed shellfish in the world
Marine Navigation And Safety Of Sea Transportation
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Author : Adam Weintrit
language : en
Publisher: CRC Press
Release Date : 2013-06-04
Marine Navigation And Safety Of Sea Transportation written by Adam Weintrit and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-04 with Computers categories.
The TransNav 2013 Symposium held at the Gdynia Maritime University, Poland in June 2013 has brought together a wide range of participants from all over the world. The program has offered a variety of contributions, allowing to look at many aspects of the navigational safety from various different points of view. Topics presented and discussed at the Symposium were: navigation, safety at sea, sea transportation, education of navigators and simulator-based training, sea traffic engineering, ship's manoeuvrability, integrated systems, electronic charts systems, satellite, radio-navigation and anti-collision systems and many others. This book is part of a series of four volumes and provides an overview of Transport and Shipping and is addressed to scientists and professionals involved in research and development of navigation, safety of navigation and sea transportation.