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Author : Anonim
Publisher : Unknown
Page : 602 pages
File Size : 43,6 Mb
Release : 2005
Category : Electronic
ISBN : NWU:35556036050458
Author : Anonim
Publisher : Unknown
Page : 456 pages
File Size : 49,6 Mb
Release : 2005
Category : Electronic
ISBN : NWU:35556034775122
Author : Anonim
Publisher : Unknown
Page : 660 pages
File Size : 51,7 Mb
Release : 2009
Category : Electronic
ISBN : NWU:35556039357488
Author : Anonim
Publisher : Unknown
Page : 596 pages
File Size : 43,5 Mb
Release : 2010
Category : Electronic
ISBN : NWU:35556038314787
Author : Anonim
Publisher : Unknown
Page : 356 pages
File Size : 40,5 Mb
Release : 2013-06
Category : Delegated legislation
ISBN : UCR:31210024750919
Author : Kieran Kelleher,Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
Page : 156 pages
File Size : 40,5 Mb
Release : 2005
Category : Business & Economics
ISBN : 9251052891
This publication gives an updated review of the quantity of discards in the world's marine fisheries, using information from a broad range of fisheries in all continents. A number of policy issues are discussed including a 'no discards' approach to fisheries management, the need for balance between bycatch reduction and bycatch utilisation initiatives, and concerns arising from incidental catches of marine mammals, birds and reptiles. The report also highlights the need for more robust methods of estimating discards, and the development of bycatch management plans.
Author : Sergi Tudela
Publisher : Food & Agriculture Org.
Page : 60 pages
File Size : 50,8 Mb
Release : 2004
Category : Biodiversity
ISBN : 9251051925
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 : United Nations. Open-ended Informal Consultive Process on Oceans and the Law of the Sea. Meeting 2006
Publisher : Unknown
Page : 174 pages
File Size : 50,7 Mb
Release : 2008
Category : Business & Economics
ISBN : STANFORD:36105132059879
The publication presents panel presentations and plenary discussions from interested delegations which resulted in important convergence of opinions. The area of focus of the presentation was "Ecosystem approaches and oceans". 20 individual panelists made presentations on the various aspects of the topic. The presentations demonstrate that a lot more is happening than had been understood. Nonetheless, a lot is still to be done, in particular, to deal with issues on the high seas where knowledge and governance systems are weak.
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 : 43,6 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 : Edward F. Melvin,Julia K. Parrish
Publisher : Alaska Sea Grant College Program
Page : 224 pages
File Size : 53,9 Mb
Release : 2001
Category : Bycatches (Fisheries)
ISBN : UCSD:31822030025969
Seabird Bycatch significantly adds to the knowledge base of seabird mortality in commercial fisheries, and emphasizes the importance of comprehensive solutions. The product of a 1999 symposium held by the Pacific Seabird Group, Seabird Bycatch is a response to escalating bycatch, a global conservation and fisheries management issue.
Author : Anonim
Publisher : Unknown
Page : 188 pages
File Size : 50,9 Mb
Release : 1998
Category : Fishery management
ISBN : UCSD:31822035584408
Author : R. W. Furness
Publisher : Springer Science & Business Media
Page : 166 pages
File Size : 43,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461320937
In the last few years there has been an excltmg upsurge in seabird research. There are several reasons for this. Man's increased ex ploitation of natural resources has led to a greater awareness of the potential conflicts with seabirds, and of the use of seabirds to indicate the damage we might be doing to our environment. Many seabird populations have increased dramatically in numbers and so seem more likely to conflict with man, for example through competition for food or transmission of diseases. Oil exploration and production has resulted in major studies of seabird distributions and ecology in relation to oil pollution. The possibility that seabirds may provide information on fish stock biology is now being critically investigated. Some seabird species have suffered serious declines in numbers and require conservation action to be taken to reduce the chances that they will become extinct. This requires an understanding of the factors determining their population size and dynamics.
Author : M. C. Mercer
Publisher : Unknown
Page : 188 pages
File Size : 53,7 Mb
Release : 1982
Category : Aquatic ecology
ISBN : UCSD:31822002394658
This publication comprises the proceedings of an international workshop convened in St. John's, Nfld, Nov. 26-29, 1979. The purpose of the workshop was to discuss the results of recent multispecies research, its applications to management, and to consider future directions for research in this field. A total of 26 papers were presented, including a combination of experience papers, state-of-the-art review, and new scientific findings. Sequential sessions were held on fisheries systems research by the Department of Fisheries and Oceans, multispecies considerations in fisheries research and management advice in the ICES area, species interactions in the Northeast Pacific and Northwest Atlantic, fisheries interactions, and applications to fisheries management. The workshop concluded with a substantial discussion of implications of present knowledge for advice to fisheries managers and implications for research program planning. The Workshop Report comprises the Chairman's opening remarks, a report on main elements of discussion in the sessions, and a summarization of workshop conclusions.
Author : United States. National Marine Fisheries Service. Ecosystem Principles Advisory Panel
Publisher : Unknown
Page : 68 pages
File Size : 53,9 Mb
Release : 1999
Category : Ecosystem management
ISBN : UIUC:30112048584640
Author : Committee on Fish Stock Assessment Methods,Commission on Geosciences, Environment and Resources,Ocean Studies Board,Division on Earth and Life Studies,National Research Council
Publisher : National Academies Press
Page : 172 pages
File Size : 52,9 Mb
Release : 1998-03-13
Category : Technology & Engineering
ISBN : 9780309524322
Ocean harvests have plateaued worldwide and many important commercial stocks have been depleted. This has caused great concern among scientists, fishery managers, the fishing community, and the public. This book evaluates the major models used for estimating the size and structure of marine fish populations (stock assessments) and changes in populations over time. It demonstrates how problems that may occur in fisheries data--for example underreporting or changes in the likelihood that fish can be caught with a given type of gear--can seriously degrade the quality of stock assessments. The volume makes recommendations for means to improve stock assessments and their use in fishery management.