A Global Assessment of Fisheries Bycatch and Discards

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Author :
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251035559
Total Pages : 266 pages
Book Rating : 4.0/5 (355 download)

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Book Synopsis A Global Assessment of Fisheries Bycatch and Discards by : Dayton L. Alverson

Download or read book A Global Assessment of Fisheries Bycatch and Discards written by Dayton L. Alverson and published by Food & Agriculture Org.. This book was released on 1994 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors estimate that between 17.9 and 39.5 million tons (average 27.0 million) of fish are discarded each year in commercial fisheries. These estimates are based on a review of over 800 papers. The highest quantities of discards are from the Northwest Pacific while tropical shrimp trawl fisheries generate a higher proportion of discards than any other fishery type, accounting for one third of the global total. Of four major gear groups, shrimp trawls stand alone at the top of the list; bottom trawls, long-lines and pot fisheries come next. The third group consists of Japanese high-seas drift net fisheries, Danish seines and purse seines for capelin. Relatively low levels result from pelagic trawls, small pelagic purse seines and some of high seas drift nets. The authors point to inadequate data to determine the biological, ecological, economic and cultural impacts of discards although economic losses run to billions of dollars. However, it appears most likely that socio-cultural attitudes towards marine resources will guide international discard policies. Techniques to reduce bycatch levels including traditional net selectivity, fishing gear development and time/area restrictions, are discussed. Effort reduction, incentive programmes and individual transferable quotas (that make the vessel responsible for bycatch reduction) are seen as promising avenues for the future. However, quick solutions to the problem are unlikely and much more information is required. The publication includes a diskette with the complete Bycatch Database, which was compiled for the study, and a summary of it.

Discards in the World's Marine Fisheries

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Publisher : Food & Agriculture Org.
ISBN 13 : 9789251052891
Total Pages : 156 pages
Book Rating : 4.0/5 (528 download)

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Book Synopsis Discards in the World's Marine Fisheries by : Kieran Kelleher

Download or read book Discards in the World's Marine Fisheries written by Kieran Kelleher and published by Food & Agriculture Org.. This book was released on 2005 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

A Global Assessment of Fisheries Bycatch and Discards

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Author :
Publisher : Food & Agriculture Organization of the UN (FAO)
ISBN 13 : 9789251035559
Total Pages : 264 pages
Book Rating : 4.0/5 (355 download)

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Book Synopsis A Global Assessment of Fisheries Bycatch and Discards by : Dayton L. Alverson

Download or read book A Global Assessment of Fisheries Bycatch and Discards written by Dayton L. Alverson and published by Food & Agriculture Organization of the UN (FAO). This book was released on 1994 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors estimate that between 17.9 and 39.5 million tons (average 27.0 million) of fish are discarded each year in commercial fisheries. These estimates are based on a review of over 800 papers. The highest quantities of discards are from the Northwest Pacific while tropical shrimp trawl fisheries generate a higher proportion of discards than any other fishery type, accounting for one third of the global total. Of four major gear groups, shrimp trawls stand alone at the top of the list; bottom trawls, long-lines and pot fisheries come next. The third group consists of Japanese high-seas drift net fisheries, Danish seines and purse seines for capelin. Relatively low levels result from pelagic trawls, small pelagic purse seines and some of high seas drift nets. The authors point to inadequate data to determine the biological, ecological, economic and cultural impacts of discards although economic losses run to billions of dollars. However, it appears most likely that socio-cultural attitudes towards marine resources will guide international discard policies. Techniques to reduce bycatch levels including traditional net selectivity, fishing gear development and time/area restrictions, are discussed. Effort reduction, incentive programmes and individual transferable quotas (that make the vessel responsible for bycatch reduction) are seen as promising avenues for the future. However, quick solutions to the problem are unlikely and much more information is required. The publication includes a diskette with the complete Bycatch Database, which was compiled for the study, and a summary of it.

Performance assessment of bycatch and discards governance by regional fisheries management organizations

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Author :
Publisher : IUCN
ISBN 13 : 2831713617
Total Pages : 498 pages
Book Rating : 4.8/5 (317 download)

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Book Synopsis Performance assessment of bycatch and discards governance by regional fisheries management organizations by :

Download or read book Performance assessment of bycatch and discards governance by regional fisheries management organizations written by and published by IUCN. This book was released on with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A third assessment of global marine fisheries discards

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Publisher : Food & Agriculture Org.
ISBN 13 : 9251312265
Total Pages : 79 pages
Book Rating : 4.2/5 (513 download)

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Book Synopsis A third assessment of global marine fisheries discards by : Food and Agriculture Organization of the United Nations

Download or read book A third assessment of global marine fisheries discards written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-02-19 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third update of FAO’s global discard estimate adopted the ‘fishery-by-fishery’ approach employed in the second discards assessment published in 2005. The update included publicly available discard data in the last 20 years to establish a baseline of a time series of global marine fisheries discards. This is essential for monitoring the status and trends of discard management, which is the first step of the ecosystem approach to fisheries management cycle. In addition, the study developed a new fisheries data table incorporating landings data from the FAO Global Capture Production dataset (FishStat J) from 2010 to 2014, which allocated the landings to over 2 000 fisheries worldwide. The current study estimated that the annual discards from global marine capture fisheries between 2010 and 2014 was 9.1 million tonnes (95% CI: 6.7 – 16.1 million tonnes). About 46 percent (4.2 million tonnes) of total annual discards were from bottom trawls that included otter trawls, shrimp trawls, pair bottom trawls, twin otter trawls and beam trawls. The study included a synthesis of estimates of bycatch and discards of endangered, threatened and protected (ETP) species. Substantial advances have been made in quantifying fisheries interactions with such species so as to make informed decisions on their protection. However, many challenges remain, especially for small-scale fisheries. The development of standardized data collection techniques, risk-based sampling and sharing of data across agencies and regions will help to identify management priorities and allow implementation and enforcement of mitigation measures. A review of previous research showed that discard practices were often related to a wide range of factors, so it is difficult to assess the effectiveness of fishery management actions on the amount and practice of discards. Many regulations are inconsistently enforced, and their implementation is often less strict than intended. Piecemeal approaches in many bycatch and discards management measures can result in unintended cross-taxa conflicts, where regulations designed to reduce bycatch and/or discards of one species or species group may increase bycatch and/or discards of another. Examination of approaches to accounting for and mitigating against pre-catch, post-capture and ghost fishing mortalities demonstrates that an understanding of the relative importance of factors affecting indirect fishing mortality is necessary for estimating total fishing-induced mortality and for designing and implementing mitigation measures.

By-catch Reduction in the World's Fisheries

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1402060785
Total Pages : 302 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis By-catch Reduction in the World's Fisheries by : Steven J. Kennelly

Download or read book By-catch Reduction in the World's Fisheries written by Steven J. Kennelly and published by Springer Science & Business Media. This book was released on 2007-07-18 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: With by-catch in fisheries becoming an ever more high-profile problem, this brilliant work could not be more timely. It contains contributions from the world’s leading experts in by-catch reduction, who guide the reader through most aspects of the field. They examine the methodologies used to develop by-catch reduction techniques and provide new avenues for broadening such work. Case studies are provided that encompass most of the world’s fishing techniques and regions.

2016 THE STATE OF WORLD FISHERIES AND AQUACULTURE

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Publisher : Food & Agriculture Org.
ISBN 13 : 9251091854
Total Pages : 204 pages
Book Rating : 4.2/5 (51 download)

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Book Synopsis 2016 THE STATE OF WORLD FISHERIES AND AQUACULTURE by : Food and Agriculture Organization of the United Nations

Download or read book 2016 THE STATE OF WORLD FISHERIES AND AQUACULTURE written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-04-17 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This issue of The State of World Fisheries and Aquaculture aims to provide objective, reliable and up-to- ate data and information to a wide range of readers – policy-makers, managers, scientists, stakeholders and indeed all those interested in the fisheries and aquaculture sector. As always, the scope is global and the topics many and varied. This edition uses the latest official statistics on fisheries and aquaculture to present a global analysis of trends in fish stocks, production, processing, utilization, trade and consumption. It also reports on the status of the world’s fishing fleets and analyses the make-up of human engagement in the sector. Twenty years on from the introduction of the Code of Conduct for Responsible Conduct, and now with the recently adopted Sustainable Development Goals, 2030 Agenda for Sustainable Development, Paris Agreement, and the Small-Scale Fisheries Guidelines, the focus on governance and policy has never been greater. This edition covers recent developments as they relate to fisheries and aquaculture, and reports, inter alia, on the Common Oceans ABNJ Program, FAO’s Blue Growth Initiative and efforts to combat illegal, unreported and unregulated fishing. It also discusses issues such as valuing inland fisheries, cutting bycatch and promoting decent work. Other topics highlighted include: nutrition; aquatic invasive alien species; responsible inland fisheries; resilience in fisheries and aquaculture; and governance of tenure and user rights.

Monitoring discards in Mediterranean and Black Sea fisheries: methodology for data collection

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Author :
Publisher : Food & Agriculture Org.
ISBN 13 : 9251315388
Total Pages : 96 pages
Book Rating : 4.2/5 (513 download)

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Book Synopsis Monitoring discards in Mediterranean and Black Sea fisheries: methodology for data collection by : Food and Agriculture Organization of the United Nations

Download or read book Monitoring discards in Mediterranean and Black Sea fisheries: methodology for data collection written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-09-03 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discards – the part of the catch that is not retained on board, which may include target species or any other (commercial and non-commercial) species that are returned at sea dead or alive – usually result in a reduction of harvesting opportunities and may have negative consequences on the stocks, ecosystems and the marine environment. In the Mediterranean and the Black Sea, studies on discards only cover a small portion of the total fishing activities and discard rates are often poorly estimated or totally unknown. Information is lacking for many types of fishing gear, countries and GFCM subregions, and most available studies only cover relatively short periods and small areas. Discards therefore represent a major source of uncertainty about the actual fishing mortality rates of stocks. These knowledge gaps highlight the need to expand discard monitoring programmes and standardize practices, so to assess discards appropriately and address their important impacts. This publication and the methodology discussed herein aim to provide a framework for the development and implementation of an efficient, standardized data collection and monitoring system for discards through on-board observations, questionnaires at landing sites and self-sampling activities. It ensures minimum common standards for the collection of discards data and allows for repeatability and comparisons among fisheries across the region, thus offering a harmonized basis of knowledge, information and evidence for decision-making.

Fisheries and Aquaculture - Volume II

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Publisher : EOLSS Publications
ISBN 13 : 1848261098
Total Pages : 438 pages
Book Rating : 4.8/5 (482 download)

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Book Synopsis Fisheries and Aquaculture - Volume II by : Patrick Safran

Download or read book Fisheries and Aquaculture - Volume II written by Patrick Safran and published by EOLSS Publications. This book was released on 2009-10-27 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fisheries and Aquaculture theme is a component of Encyclopedia of Food and Agricultural Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. Fisheries are a major life support system and the main purpose of this theme on Fisheries and Aquaculture is to provide baseline information and latest knowledge at the dawn of this century to facilitate vital fisheries recovery before their irreparable collapse. This Theme on Fisheries and Aquaculture is divided into five topics. It starts with discussions on major issues and challenges in “Harvesting the Seas”, with emphasis on the role and importance of the fisheries sector and its environment, and introduces trends and perspectives in marine fisheries, including allocation of use rights, subsidies, and port management. The next two topics present an in-depth and detailed knowledge on fish and other aquatic living resources that are commercially exploited and/or farmed. The third topic on Inland Fisheries presents salmonid fish, eels, shad, whitefish and smelt, carp, perch, pike and bass, tilapia, frog, and crustaceans. The fourth topic presents a comprehensive review of trends and perspectives in Aquaculture: Principles and Prospects. The fifth topic on Economics of Fisheries and Aquaculture reviews the latest views and concepts useful to apprehend the fisheries management regime, including a comparative static economic theory and a dynamic theory of fishery, spatial bioeconomic dynamics and role of international law in the management of marine fisheries, rights-based and community fisheries management, aquaculture economics, and game theory and fisheries. These five volumes are aimed at the following five major target audiences: University and College Students Educators, Professional Practitioners, Research Personnel and Policy Analysts, Managers, and Decision Makers, NGOs and GOs.

Bycatch Management and the Economics of Discarding

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Publisher : Food & Agriculture Org.
ISBN 13 : 9789251040430
Total Pages : 156 pages
Book Rating : 4.0/5 (44 download)

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Book Synopsis Bycatch Management and the Economics of Discarding by : Sean Pascoe

Download or read book Bycatch Management and the Economics of Discarding written by Sean Pascoe and published by Food & Agriculture Org.. This book was released on 1997 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increase in commercial fisheries production over the last 50 years has been accompanied by an increase in the level of incidental catch and discarding of a number of species. Approximately one quarter of the marine commercial catch destined for human consumption is discarded at sea. This has raised the concern of a number of groups in society, including environmentalists, humanitarians and fishers themselves. In this paper, the economic incentives to discard fish are examined. The effects of different managemenet policies on these incentives are also investigated. The concept of an optimal level of discarding is discussed taking into account the externalities that can be created by discarding. Finally, the effectiveness of various measures to reduce the level of discarding is reviewed. these including technical, administrative and economic measures.

Multidisciplinary Approaches to Mitigating Fisheries Bycatch

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Publisher : Frontiers Media SA
ISBN 13 : 288976043X
Total Pages : 218 pages
Book Rating : 4.8/5 (897 download)

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Book Synopsis Multidisciplinary Approaches to Mitigating Fisheries Bycatch by : Rebecca Lent

Download or read book Multidisciplinary Approaches to Mitigating Fisheries Bycatch written by Rebecca Lent and published by Frontiers Media SA. This book was released on 2022-04-29 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Saving Global Fisheries

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Publisher : MIT Press
ISBN 13 : 0262312778
Total Pages : 287 pages
Book Rating : 4.2/5 (623 download)

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Book Synopsis Saving Global Fisheries by : J. Samuel Barkin

Download or read book Saving Global Fisheries written by J. Samuel Barkin and published by MIT Press. This book was released on 2013-01-18 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: A proposal for a new global approach for fisheries focused on reducing fishing capacity and providing incentives for long-term sustainability. The Earth's oceans are overfished, despite more than fifty years of cooperation among the world's fishing nations. There are too many boats chasing too few fish. In Saving Global Fisheries, J. Samuel Barkin and Elizabeth DeSombre analyze the problem of overfishing and offer a provocative proposal for a global regulatory and policy approach. Existing patterns of international fisheries management try to limit the number of fish that can be caught while governments simultaneously subsidize increased fishing capacity, focusing on fisheries as an industry to be developed rather than on fish as a resource to be conserved. Regionally based international management means that protection in one area simply shifts fishing efforts to other species or regions. Barkin and DeSombre argue that global rather than regional regulation is necessary for successful fisheries management and emphasize the need to reduce subsidies. They propose an international system of individual transferable quotas that would give holders of permits an interest in the long-term health of fish stocks and help create a sustainable level of fishing capacity globally.

The International Conference on Integrated Fisheries Monitoring, Sydney, Australia, 1-5 February 1999

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Author :
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251043721
Total Pages : 388 pages
Book Rating : 4.0/5 (437 download)

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Book Synopsis The International Conference on Integrated Fisheries Monitoring, Sydney, Australia, 1-5 February 1999 by :

Download or read book The International Conference on Integrated Fisheries Monitoring, Sydney, Australia, 1-5 February 1999 written by and published by Food & Agriculture Org.. This book was released on 1999 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conference was co-hosted by the governments of Australia and Canada in co-operation with FAO and the support of the National Oceanographic and Atmospheric Administration (NOAA), USA, and the Department of Fisheries, NSW. The purpose of the conference was to address the challenges and opportunities of fisheries monitoring that are common to many fisheries.

Marine Fisheries Review

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Author :
Publisher :
ISBN 13 :
Total Pages : 490 pages
Book Rating : 4.:/5 (891 download)

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Book Synopsis Marine Fisheries Review by :

Download or read book Marine Fisheries Review written by and published by . This book was released on 2012 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:

S. 1420, International Dolphin Conservation Program Act

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Author :
Publisher :
ISBN 13 :
Total Pages : 288 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis S. 1420, International Dolphin Conservation Program Act by : United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Oceans and Fisheries

Download or read book S. 1420, International Dolphin Conservation Program Act written by United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Oceans and Fisheries and published by . This book was released on 1996 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Annual Report to Congress

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Publisher :
ISBN 13 :
Total Pages : 536 pages
Book Rating : 4.3/5 (5 download)

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Book Synopsis Annual Report to Congress by : United States. Marine Mammal Commission

Download or read book Annual Report to Congress written by United States. Marine Mammal Commission and published by . This book was released on 1995 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Annual Report of the Marine Mammal Commission

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Publisher :
ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Annual Report of the Marine Mammal Commission by : United States. Marine Mammal Commission

Download or read book Annual Report of the Marine Mammal Commission written by United States. Marine Mammal Commission and published by . This book was released on 1995 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: