Effects Of Trawling And Dredging On Seafloor Habitat
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Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 137 |
Release | : 2002-08-09 |
Genre | : Science |
ISBN | : 0309083400 |
Download Effects of Trawling and Dredging on Seafloor Habitat Book in PDF, Epub and Kindle
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 | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 136 |
Release | : 2002-07-09 |
Genre | : Science |
ISBN | : 0309169801 |
Download Effects of Trawling and Dredging on Seafloor Habitat Book in PDF, Epub and Kindle
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 | : Elena Guijarro Garcia |
Publisher | : Nordic Council of Ministers |
Total Pages | : 378 |
Release | : 2007 |
Genre | : Arctic Ocean |
ISBN | : 9289313323 |
Download Bottom Trawling and Scallop Dredging in the Arctic Book in PDF, Epub and Kindle
Author | : Scott Wallace |
Publisher | : |
Total Pages | : 45 |
Release | : 2007 |
Genre | : Trawls and trawling |
ISBN | : 9781897375105 |
Download Dragging Our Assets Book in PDF, Epub and Kindle
Author | : Sergi Tudela |
Publisher | : Food & Agriculture Org. |
Total Pages | : 60 |
Release | : 2004 |
Genre | : Biodiversity |
ISBN | : 9789251051924 |
Download Ecosystem Effects of Fishing in the Mediterranean Book in PDF, Epub and Kindle
Most of the major impacts of fishing on the ecosystems recorded around the world occur in the Mediterranean. This variety of interactions is due to four main interrelated factors: the wide range of fishing gear and practices; very intensive fishing; a high diversity of exploited habitats, ranging from shallow water to the deep-sea and oceanic domain; and high biological diversity.
Author | : |
Publisher | : |
Total Pages | : 548 |
Release | : 1986 |
Genre | : |
ISBN | : |
Download Northeast Multispecies Fishery, Fisheries Management Plan (FMP) Book in PDF, Epub and Kindle
Author | : K. Reise |
Publisher | : Springer Science & Business Media |
Total Pages | : 392 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 3642565573 |
Download Ecological Comparisons of Sedimentary Shores Book in PDF, Epub and Kindle
Sedimentary coasts with their unique forms of life and productive ecosystems are one of the most threatened parts of the biosphere. This volume analyzes and compares ecological structures and processes at sandy beaches, tidal mudflats and in shallow coastal waters all around the world. Analyses of local processes are paired with comparisons between distant shores, across latitudinal gradients or between separate biogeographic provinces. Emphasis is given to suspension feeders in coastal mud and sand, to biogenic stabilizations and disturbances in coastal sediments, to seagrass beds and faunal assemblages across latitudes and oceans, to recovery dynamics in benthic communities, shorebird predation, and to experimental approaches to the biota of sedimentary shores.
Author | : Svein Løkkeborg |
Publisher | : Food & Agriculture Org. |
Total Pages | : 70 |
Release | : 2005 |
Genre | : Business & Economics |
ISBN | : 9789251053256 |
Download Impacts of Trawling and Scallop Dredging on Benthic Habitats and Communities Book in PDF, Epub and Kindle
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.
Author | : |
Publisher | : |
Total Pages | : 1032 |
Release | : 1999 |
Genre | : |
ISBN | : |
Download Monkfish Fishery Regulations, Northeast Multispecies Fishery, Fishery Management Plan (FMP) Amendment 9, Exclusive Economic Zone (EEZ) Off the New England and Mid-Atlantic Coast Book in PDF, Epub and Kindle
Author | : John Willy Valdemarsen |
Publisher | : Food & Agriculture Org. |
Total Pages | : 44 |
Release | : 2007 |
Genre | : Technology & Engineering |
ISBN | : 9789251058763 |
Download Options to Mitigate Bottom Habitat Impact of Dragged Gears Book in PDF, Epub and Kindle
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.