Author: National Research Council
Publisher: National Academies Press
ISBN: 0309083400
Category : Science
Languages : en
Pages : 137
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Book Description
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.
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ISBN:
Category :
Languages : en
Pages : 550
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Author: Nordic Council of Ministers
Publisher: Nordic Council of Ministers
ISBN: 9289313323
Category : Arctic Ocean
Languages : en
Pages : 378
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Author: Svein Løkkeborg
Publisher: Food & Agriculture Org.
ISBN: 9789251053256
Category : Business & Economics
Languages : en
Pages : 70
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Book Description
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.
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Languages : en
Pages : 1032
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Languages : en
Pages : 670
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Languages : en
Pages : 326
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Author: Sandra E. Shumway
Publisher: John Wiley & Sons
ISBN: 0813814138
Category : Technology & Engineering
Languages : en
Pages : 526
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Book Description
Shellfish Aquaculture and the Environment focuses primarily on the issues surrounding environmental sustainability of shellfish aquaculture. The chapters in this book provide readers with the most current data available on topics such as resource enhancement and habitat restoration. Shellfish Aquaculture and the Environment is also an invaluable resource for those looking to develop and implement environmental best management practices. Edited one of the world's leading shellfish researchers and with contributions from around the world, Shellfish Aquaculture and the Environment is the definitive source of information for this increasingly important topic. View the Executive Summary here: http://seagrant.uconn.edu/publications/aquaculture/execsumm.pdf
Author: John Willy Valdemarsen
Publisher: Food & Agriculture Org.
ISBN: 9789251058763
Category : Technology & Engineering
Languages : en
Pages : 44
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Book Description
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.
Author: Scott Wallace
Publisher:
ISBN: 9781897375105
Category : Trawls and trawling
Languages : en
Pages : 45
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