A Guide To Bycatch Reduction In Tropical Shrimp Trawl Fisheries

Author : Steve Eayrs
Publisher : Food & Agriculture Org.
Page : 126 pages
File Size : 46,6 Mb
Release : 2007
Category : Business & Economics
ISBN : 9251056749

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A Guide to Bycatch Reduction in Tropical Shrimp-trawl Fisheries by Steve Eayrs Pdf

Bycatch is the unwanted or non-target part of the catch taken by fishermen. It is either discarded at sea or used for human or animal consumption. The capture of bycatch may pose a threat to species diversity and ecosystem health because this part of the catch is usually unregulated. In tropical shrimp-trawl fisheries, bycatch often consists of juvenile food-fish species and is therefore a threat to food security and sustainable fisheries production. Bycatch is a global problem that must be addressed. This Guide to Bycatch Reduction in Tropical Shrimp-Trawl Fisheries is designed for fishermen, net makers, fishing technologists and others interested in a practical guide to the design, use and operation of effective bycatch reduction devices. Fishery managers, policy-makers and legislators will find this guide useful to help develop specifications governing the design and application of these devices in a shrimptrawl fishery. The issue of bycatch is not going away and scrutiny of fishing activity is increasing. All fishermen are strongly urged to use appropriate bycatch reduction measures to help maintain the productivity of the fishery and the long term prosperity of the fishing industry. By responding appropriately, fishermen can help to protect the marine environment and assist global food security both now and in the future. Also published in French and Spanish.

Author : Eayrs, S., Fuentevilla, C.
Publisher : Food & Agriculture Org.
Page : 142 pages
File Size : 47,8 Mb
Release : 2021-10-25
Category : Technology & Engineering
ISBN : 9789251349069

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Advances and best practices in bycatch reduction in tropical shrimp-trawl fisheries by Eayrs, S., Fuentevilla, C. Pdf

This technical report describes efforts to mitigate bycatch through gear modifications and adaptations in the tropical shrimp-trawl fisheries of over 30 countries. It provides a summary of efforts by each country and then synthesizes them to identify and describe best practice. A best practice in bycatch reduction is the application or adoption of appropriate, recognized approaches to modifying fishing gear, with the objective of reducing bycatch to the greatest extent practicable. This information serves as a benchmark to identify countries that are taking appropriate steps to reduce bycatch and those that are not. It also provides context from which the outcomes of research on bycatch reduction can be evaluated and compared, including the identification of effective bycatch reduction devices, and serves to identify future research priorities. In the context of this report, best practice includes the installation and use of TEDs and BRDs that are optimally rigged and operated so as to reduce bycatch. It also includes the application of appropriate regulations to ensure effective performance, as well as the introduction of effective outreach and extension programmes to enhance and sustain best practice to reduce bycatch.

Author : Steve Eayrs,Bryan McDonald,Colin Buxton
Publisher : Unknown
Page : 54 pages
File Size : 45,9 Mb
Release : 1997
Category : Bycatches (Fisheries)
ISBN : 0646328239

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A Guide to Bycatch Reduction in Australian Prawn Trawl Fisheries by Steve Eayrs,Bryan McDonald,Colin Buxton Pdf

Author : Dayton L. Alverson
Publisher : Food & Agriculture Org.
Page : 266 pages
File Size : 47,8 Mb
Release : 1994
Category : Technology & Engineering
ISBN : 9251035555

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A Global Assessment of Fisheries Bycatch and Discards by Dayton L. Alverson Pdf

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.

Author : Sacchi, J.
Publisher : Food & Agriculture Org.
Page : 136 pages
File Size : 40,7 Mb
Release : 2021-06-23
Category : Technology & Engineering
ISBN : 9789251345399

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Overview of mitigation measures to reduce the incidental catch of vulnerable species in fisheries by Sacchi, J. Pdf

Potentially harmful contact between fisheries and marine vulnerable species represents a global conservation issue and efforts to mitigate the negative repercussions of these interactions belong in strategies for ensuring the sustainability of fisheries. This literature review offers a survey of mitigation measures and techniques that have been developed and tested around the world, aiming to address both the incidental catch of highly mobile species – specifically, cetaceans, seabirds, sharks and rays, and sea turtles – and depredation caused by dolphins. Based on research detailed in over 300 documents, including peer-reviewed publications, reports from international organizations and papers available on the internet, most of the mitigation techniques illustrated are still under development, with only a few already adopted through legislation. The selected mitigation measures are grouped by main types of fishing gear – gillnets and trammel nets, longlines and lines, trawls, purse seines, traps and pots – and further subdivided according to which of the four main groups of vulnerable species – cetaceans, seabirds, sharks and rays, or sea turtles – they are designed to protect. Preventive and curative approaches covering both technical measures (gear modifications, strategies, as well as acoustic, visual, magnetic and chemosensory deterrents) and management measures are described.

Author : Tony Norton,Ted Lefroy,Kay Bailey,Greg Unwin
Publisher : CSIRO PUBLISHING
Page : 272 pages
File Size : 47,9 Mb
Release : 2008-09-08
Category : Science
ISBN : 9780643098664

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Biodiversity: Integrating Conservation and Production by Tony Norton,Ted Lefroy,Kay Bailey,Greg Unwin Pdf

Australia’s experience in community-based environmental repair is unique in the world, with no shortage of analysis by bureaucrats, academics and environmentalists. This collection of 17 case studies gives a view from ground level. It includes heroic accounts of families who changed their way of farming and their relationship to the land so significantly they found they could stop hand-feeding stock during a drought and see the bush coming back. It describes the experience with ‘bush tenders’, which were oversubscribed, as farmers competed with each other for stewardship payments to manage their grazing lands for endangered ground-nesting birds as well as beef and wool. And it tells of a group of wheat growers who plant patches of grassland for beneficial insects that save them tens of thousands of dollars a year in pesticide bills. The case studies arose from a meeting of 250 farmers, foresters and fishers from all Australian states, who met in Launceston as guests of the community group Tamar Natural Resource Management to reflect on the question: ‘Is it possible to be good environmental managers and prosper in our businesses?’ As well as tales of environmental hope, there are also messages about the limits of duty of care, the need to share the costs of achieving society’s expectations, and the possibility of learning from unlikely places. Biodiversity: Integrating Conservation and Production includes the seven ‘Tamar Principles’, distilled by the delegates from the meeting for those on the front line.

Author : D.D. Nambudiri:
Publisher : NIPA GENX ELECTRONIC RESOURCES & SOLUTIONS P. LTD.
Page : 472 pages
File Size : 51,8 Mb
Release : 2012-01-15
Category : Business & Economics
ISBN : 9381450099

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Advances in Harvest and Post-Harvest Technology of Fishes by D.D. Nambudiri: Pdf

In recent years there have been notable advances in the fisheries. Progresses made in refinements of vessels, new line materials and line-handling systems, preserving the catch, the availability of oceanographic-sensor equipments and the utilization of satellite technology to locate potential fishing grounds have greatly improved the fishing power of longline vessels. Post harvest technology of fish has evolved in the last one decade to a more energy-efficient, cost-effective, and quality upgrading technology. Since fresh fish can get spoiled very quickly, the development of technology for post-harvest preservation and methodology to convert fish to value added products have also become popular in recent times. Value addition helps in getting high price for the fishery products. There is a need to develop competent human resources in the field of post harvest management of fish and production of value added products from them. It is required to inculcate vocational and entrepreneurial skills in order to widen employment opportunities, particularly among rural youth and the disadvantaged sections of the society as well as to enable self employment.

Author : Anonim
Publisher : IUCN
Page : 498 pages
File Size : 49,7 Mb
Release : 2024-07-02
Category : Electronic
ISBN : 9782831713618

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

Author : R. Quentin Grafton,Ray Hilborn,Dale Squires,Maree Tait,Meryl Williams
Publisher : Oxford University Press
Page : 784 pages
File Size : 41,5 Mb
Release : 2010-01-21
Category : Technology & Engineering
ISBN : 0199708282

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Handbook of Marine Fisheries Conservation and Management by R. Quentin Grafton,Ray Hilborn,Dale Squires,Maree Tait,Meryl Williams Pdf

This handbook is the most comprehensive and interdisciplinary work on marine conservation and fisheries management ever compiled. It is the first to bridge fisheries and marine conservation issues. Its innovative ideas, detailed case studies, and governance framework provide a global special perspective over time and treat problems in the high seas, community fisheries, industrial fishing, and the many interactions between use and non-use of the oceans. Its policy tools and ideas for overcoming the perennial problems of over fishing, habitat and biodiversity loss address the facts that many marine ecosystems are in decline and plagued by overexploitation due to unsustainable fishing practices. An outstanding feature of the book is the detailed case-studies on conservation practice and fisheries management from around the world. These case studies are combined with 'foundation' chapters that provide an overview of the state of the marine world and innovative and far reaching perspectives about how we can move forward to face present and future challenges. The contributors include the world's leading fisheries scientists, economists, and managers. Ecosystem and incentive-based approaches are described and complemented by tools for cooperative, participatory solutions. Unique themes treated: fisher behavior and incentives for management beyond rights-based approaches; a synthesis of proposed 'solutions'; a framework for understanding and overcoming the critical determinants of the decline in fisheries, degradation of marine ecosystems, and poor socio-economic performance of many fishing communities; models for innovative policy instruments; a plan of action and adoption pathways to promote sustainable fishing practices globally. Collectively, the handbook's many valuable contributions offer a way forward to both understanding and resolving the multifaceted problems facing the world's oceans.

Author : Violin Stoyanov Raykov,Petya Pavlova Ivanova,Cemal Turan,Ertug Duzgunes
Publisher : Frontiers Media SA
Page : 146 pages
File Size : 42,6 Mb
Release : 2020-09-17
Category : Science
ISBN : 9782889660155

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Ecosystem Approach to Fisheries in the Mediterranean and Black Seas - Advances in Research and Technologies by Violin Stoyanov Raykov,Petya Pavlova Ivanova,Cemal Turan,Ertug Duzgunes Pdf

This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.

Author : M. R. Boopendranath,P. Pravin,T. R. Gibinkumar,S. Sabu (Research fellow)
Publisher : Unknown
Page : 40 pages
File Size : 50,6 Mb
Release : 2012
Category : Bycatches (Fisheries)
ISBN : UCSD:31822040804882

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Bycatch Reduction Devices for Responsible Shrimp Trawling by M. R. Boopendranath,P. Pravin,T. R. Gibinkumar,S. Sabu (Research fellow) Pdf

Author : Gustavo Lovrich,Martin Thiel
Publisher : Oxford University Press, USA
Page : 579 pages
File Size : 47,6 Mb
Release : 2020
Category : Nature
ISBN : 9780190865627

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Fisheries and Aquaculture by Gustavo Lovrich,Martin Thiel Pdf

"Much of the biological and other research efforts on crustaceans have been driven by their importance to humans as a food source. Production comes from a diverse array of methods and scales of extraction, from small recreational or subsistence fisheries to industrial scale operations. Most crustacean catch comes from shrimp fisheries with over two million tonnes taken in 2014, mainly by trawl. The genera Acetes, Fenneropenaeus, and Pandalus account for around three quarters of this catch. Crab, krill and lobster are the other main crustacean products (around 600,000 t crab, 380,000 t krill and 300,000 t lobster in 2014). Trends in crustacean fisheries are broadly similar to those of other seafood although crustaceans often target different market segments and receive higher prices than fish. Crustacean fisheries management faces many challenges with management of bycatch from trawl gears especially significant. Fortunately, crustaceans tend to be easily handled with low discard mortality and this has enabled widespread use of regulations based on size, maturity or sex (e.g., male-only fisheries). Total allowable catch (TAC) limits are widely used and highly effective for ensuring sustainable harvests when set responsibly using good information. TAC systems are often combined with catch share or individual transferable quota systems which had a mixed history in crustaceans, sometimes reducing overall community benefit. This parallels the challenge facing fisheries globally of ensuring that harvests are not only sustainable but also deliver benefits to the wider community beyond the commercial fishers; management of some crustacean fisheries are at the forefront of these developments"--

Author : Pingguo He
Publisher : John Wiley & Sons
Page : 410 pages
File Size : 46,6 Mb
Release : 2011-06-09
Category : Technology & Engineering
ISBN : 9780470961766

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Behavior of Marine Fishes by Pingguo He Pdf

BEHAVIOR OF MARINE FISHES BEHAVIOR OF MARINE FISHES: Capture Processes and Conservation Challenges Understanding fish behavior in relation to capture processes in marine fisheries is of fundamental importance to reducing bycatch and discards, and to enhancing marine fisheries conservation efforts. A thorough understanding of this allows commercial fishers to more effectively capture target species while reducing the catch of unwanted species. Behavior of Marine Fishes: Capture Processes and Conservation Challenges provides the reader with principles, patterns, and characteristics on fish behavior and fish capture processes using several types of important commercial fishing gears. The book also highlights conservation challenges facing the marine capture fisheries in efforts to maintain sustainable use of marine resources and to reduce negative impacts to the marine ecosystem. This volume, with contributions from leading applied fish behaviorists and fishing gear technologists from around the world, will be a valuable reference for researchers, fishing gear technologists, fisheries managers, students, and conservationists. SPECIAL FEATURES: Synthesis of current research and valuable knowledge that will help reduce bycatch and discards in commercial fisheries Review of basic fish behavioral principles and patterns and their relation to capture methods and conservation efforts Contributions from leading international applied fish behaviorists and fishing gear technologists

Author : Ratana Chuenpagdee,Svein Jentoft
Publisher : Springer
Page : 479 pages
File Size : 53,5 Mb
Release : 2018-10-15
Category : Political Science
ISBN : 9783319949383

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Transdisciplinarity for Small-Scale Fisheries Governance by Ratana Chuenpagdee,Svein Jentoft Pdf

The importance of small-scale fisheries for sustainable livelihoods and communities, food security, and poverty eradication is indisputable. With the endorsement of the ‘Voluntary Guidelines for Securing Sustainable Small-Scale Fisheries’, FAO member states recognize that governments, civil society organizations, and research communities all have a role to play in helping small-scale fisheries achieve these goals. This book argues that policies targeting small-scale fisheries need to be based on a solid and holistic knowledge foundation, and support the building of governance capacity at local, national, and global levels. The book provides rich illustrations from around the world of why such knowledge production needs to be transdisciplinary, drawing from multiple disciplinary perspectives and the knowledge that small-scale fisheries actors have, in order to identify problems and explore innovative solutions. Transdisciplinarity for Small-Scale Fisheries Governance: Analysis and Practice, edited by Ratana Chuenpagdee and Svein Jentoft, successfully demonstrates how small-scale fisheries are important and what social and political conditions are conducive to their wellbeing. The volume contributes tremendously to building capacity of fisheries communities and policy-makers to make the ideals of small-scale fisheries a reality. It establishes the ecological, social, and economic sense behind small-scale fisheries. A milestone reference for all those who believe in small-scale fisheries and are keen to defend them with quality evidence! — Sebastian Mathew, Executive Director, International Collective in Support of Fishworkers (ICSF) The Small-Scale Fisheries Guidelines guiding principles call for holistic and integrated approaches for their implementation. This book will help a new generation of scientists, policy-makers, and small-scale fisheries actors make the fundamental connections between different disciplines in science, traditional knowledge, and policy to guide a collective process towards sustainable small-scale fisheries. The book contains an inspiring collection of practical cases from around the world, complemented by deep dives into dimensions of small-scale fisheries, like food security, stewardship, climate change, and gender, which all call for transdisciplinary approaches. — Nicole Franz, Fisheries and Aquaculture Department, Food and Agriculture Organization of the United Nations (FAO) Rome, Italy

Author : Robin N. Gibson,Richard D.M. Nash,Audrey J. Geffen,Henk W. Van der Veer
Publisher : John Wiley & Sons
Page : 576 pages
File Size : 55,5 Mb
Release : 2014-11-18
Category : Technology & Engineering
ISBN : 9781118501177

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Flatfishes by Robin N. Gibson,Richard D.M. Nash,Audrey J. Geffen,Henk W. Van der Veer Pdf

Fascinating and instantly recognizable, flatfishes are unique in their asymmetric postlarval body form. With over 800 extant species recognized and a distribution stretching around the globe, these fishes are of considerable research interest and provide a major contribution to commercial and recreational fisheries worldwide. This second edition of Flatfishes: Biology and Exploitation has been completely revised, updated and enlarged to respond to the ever-growing body of research. It provides: • Overviews of systematics, distribution, life history strategies, reproduction, recruitment, ecology and behaviour • Descriptions of the major fisheries and their management • An assessment of the synergies between ecological and aquaculture research of flatfishes. Carefully compiled and edited by four internationally-known scientists and with chapters written by many world leaders in the field, this excellent new edition of a very popular and successful book is essential reading for fish biologists, fisheries scientists, marine biologists, aquaculture personnel, ecologists, environmental scientists, and government workers in fisheries and fish and wildlife departments. Flatfishes: Biology and Exploitation, Second Edition, should be found in all libraries of research establishments and universities where life sciences, fish biology, fisheries, aquaculture, marine sciences, oceanography, ecology and environmental sciences are studied and taught. Reviews of the First Edition • A solid, up-to-date book that advanced students and research scientists with interests in fish biology will find interesting and useful. Aquaculture International • A data-rich book that outlines much of what you might ever want to know about flatfishes. Fish & Fisheries • Well presented with clear illustrations and a valuable source of information for those with a general interest in fish ecology or for the more specialist reader. You should make sure that your library has a copy. J Fish Biology • An excellent and very practical overview of the whole, global flatfish scene. Anyone interested in flatfish at whichever stage of the economic food chain should invest in a copy immediately. Ausmarine • Because of the high quality of each chapter, written by international experts, it is a valuable reference. Reviews in Fish Biology and Fisheries