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Author : Anonim
Publisher : Unknown
Page : 18 pages
File Size : 52,6 Mb
Release : 1977
Category : Electronic
ISBN : NWU:35556030635064
Author : Anonim
Publisher : Unknown
Page : 116 pages
File Size : 48,8 Mb
Release : 1977
Category : Electronic
ISBN : NWU:35556030635007
Author : Pacific Fishery Management Council (U.S.)
Publisher : Unknown
Page : 278 pages
File Size : 52,8 Mb
Release : 1979
Category : Fisheries
ISBN : UCSD:31822010766079
Author : Anonim
Publisher : Unknown
Page : 620 pages
File Size : 49,9 Mb
Release : 1980
Category : Biotic communities
ISBN : MINN:30000010622441
Author : Anonim
Publisher : Unknown
Page : 1660 pages
File Size : 40,7 Mb
Release : 1979-09
Category : Delegated legislation
ISBN : UCR:31210024961409
Author : Anonim
Publisher : Unknown
Page : 722 pages
File Size : 49,6 Mb
Release : 1980
Category : Ecology
ISBN : UOM:39015000763527
Author : Anonim
Publisher : Unknown
Page : 596 pages
File Size : 43,6 Mb
Release : 1980
Category : Biotic communities
ISBN : MINN:30000010622458
Author : Santiago Herrera,Juan Armando Sanchez,Luisa Fernanda Dueñas
Publisher : Frontiers Media SA
Page : 336 pages
File Size : 45,9 Mb
Release : 2022-05-03
Category : Science
ISBN : 9782889760695
Author : Anonim
Publisher : Unknown
Page : 262 pages
File Size : 45,6 Mb
Release : 1982
Category : Electronic
ISBN : NWU:35556030153258
Author : Pacific Fishery Management Council (U.S.)
Publisher : Unknown
Page : 140 pages
File Size : 40,7 Mb
Release : 1979
Category : Fishery management
ISBN : UCSD:31822007465347
Author : D. B. Holts
Publisher : Unknown
Page : 500 pages
File Size : 53,6 Mb
Release : 1980
Category : Porpoises
ISBN : UCSD:31822006529135
Author : National Research Council,Division on Earth and Life Studies,Ocean Studies Board,Committee on Ecosystem Effects of Fishing: Phase 1â¬"Effects of Bottom Trawling on Seafloor Habitats
Publisher : National Academies Press
Page : 137 pages
File Size : 42,5 Mb
Release : 2002-08-09
Category : Science
ISBN : 9780309083409
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.
Author : Anonim
Publisher : Unknown
Page : 848 pages
File Size : 48,8 Mb
Release : 2009
Category : Electronic
ISBN : NWU:35556039339676
Author : Anonim
Publisher : Unknown
Page : 48 pages
File Size : 45,8 Mb
Release : 1981
Category : Fisheries
ISBN : MINN:30000010406431
Author : Richard H. Parrish
Publisher : Unknown
Page : 692 pages
File Size : 55,6 Mb
Release : 1985
Category : Fishery management
ISBN : UCSD:31822006541619