Trawl Fishery of the Washington/Oregon/California Region
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Page : 116 pages
File Size : 35,11 MB
Release : 1977
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Author :
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Page : 116 pages
File Size : 35,11 MB
Release : 1977
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Page : 18 pages
File Size : 37,62 MB
Release : 1977
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Author :
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Page : 1660 pages
File Size : 26,1 MB
Release : 1979-09
Category : Delegated legislation
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Page : 848 pages
File Size : 14,80 MB
Release : 2009
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Author : National Research Council
Publisher : National Academies Press
Page : 136 pages
File Size : 43,68 MB
Release : 2002-07-09
Category : Science
ISBN : 0309169801
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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Page : 48 pages
File Size : 21,69 MB
Release : 1981
Category : Fisheries
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Author : Richard H. Parrish
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Page : 692 pages
File Size : 47,46 MB
Release : 1985
Category : Fishery management
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Author : OTA Oceans Program
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Page : 148 pages
File Size : 21,5 MB
Release : 1977
Category : Fishery law and legislation
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Author : United States. Congress. Office of Technology Assessment. Oceans Program Staff
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Page : 148 pages
File Size : 40,27 MB
Release : 1977
Category : Fishery law and legislation
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Author : Pacific Fishery Management Council (U.S.)
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Page : 278 pages
File Size : 14,7 MB
Release : 1979
Category : Fisheries
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