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SUSTAINABLE FISHERIES and RESPONSIBLE AQUACULTURE: a Guide for USAID Staff and Partners
SUSTAINABLE FISHERIES AND RESPONSIBLE AQUACULTURE: A Guide for USAID Staff and Partners June 2013 ABOUT THIS GUIDE GOAL This guide provides basic information on how to design programs to reform capture fisheries (also referred to as “wild” fisheries) and aquaculture sectors to ensure sound and effective development, environmental sustainability, economic profitability, and social responsibility. To achieve these objectives, this document focuses on ways to reduce the threats to biodiversity and ecosystem productivity through improved governance and more integrated planning and management practices. In the face of food insecurity, global climate change, and increasing population pressures, it is imperative that development programs help to maintain ecosystem resilience and the multiple goods and services that ecosystems provide. Conserving biodiversity and ecosystem functions are central to maintaining ecosystem integrity, health, and productivity. The intent of the guide is not to suggest that fisheries and aquaculture are interchangeable: these sectors are unique although linked. The world cannot afford to neglect global fisheries and expect aquaculture to fill that void. Global food security will not be achievable without reversing the decline of fisheries, restoring fisheries productivity, and moving towards more environmentally friendly and responsible aquaculture. There is a need for reform in both fisheries and aquaculture to reduce their environmental and social impacts. USAID’s experience has shown that well-designed programs can reform capture fisheries management, reducing threats to biodiversity while leading to increased productivity, incomes, and livelihoods. Agency programs have focused on an ecosystem-based approach to management in conjunction with improved governance, secure tenure and access to resources, and the application of modern management practices. -
What Is a Bottom Trawl?
What is a Bottom Trawl? Bottom trawls are a type of mobile fishing gear consisting of very large nets that are dragged on the seafloor to catch groundfish and other species. Bottom trawls are used in virtually all East Coast, West Coast and Alaska fisheries to catch shrimp and fish such as cod, flounder and rockfish. Trawls are used from shallow, inshore depths of 50-feet to extreme depths of 6,000-feet on the continental slope. The National Academy of Sciences found in its 2002 report, “Effects of Trawling and Dredging on Seafloor Habitats,” that U.S. trawlers have damaged over 230,000 square nautical miles of seafloor, an area greater than California. The most common type of bottom trawl in the United States is the otter trawl, in which the net is held open vertically by the force of water moving against two massive otter doors/boards. The trawl net can stretch 40-feet in height and spread over 200 feet wide between the doors, depending on factors such as the depth fished and the type of fish targeted. A large, fully-rigged net weighs well over a ton and requires a large, powerful boat to drag the net, particularly when loaded with a catch of hundreds or thousands of pounds of fish and bycatch (unwanted, non-target species) in the codend, or back of the net. The impact to the seafloor from trawling is a compound of the weight of the net and the forward momentum of the gear as it is dragged forward. The opening of a bottom trawl net is lined with floats on the headrope and with weighted ground gear on the footrope. -
The Role of Sustainable Fisheries and Aquaculture for Food Security and Nutrition
The Role of Sustainable Fisheries and Aquaculture for Food Security and Nutrition James Rohan CPA MBA WorldFish, FAO and World Resources Institute has conducted research recently which will support many of the questions suggested. Principles of sustainable business should be considered as the framework seeks to have minimal negative impact on the global or local environment, community, society, or economy,while achieving an industrious objective. Local environment will require an understanding of marine life and a model similar to planetary boundaries may promote education, research opportunities and continuous improvement principles. Many of the researchers have commented on the lack of research activity in this area and justifies the request by FSN for consideration. Rather than calories, I have proposed in the past a nutritional mass balance approach to recognise nutrition for health in food security. This would require consideration of yield and while some researchers have identified process capability, we should also explore product capability. Is nutrition compromised under stress or can it be enhanced with management? Over 90% of the world's living biomass is contained in the oceans, which cover 71% of the Earth's surface. At present, we harvest about 0.2% of marine production. ● Marine sources provide about 20% of the animal protein eaten by humans. Another 5% is provided indirectly via livestock fed with fish. ● 60% of fish consumption is by the developing world. ● The fishing enterprise employs some 200 million people worldwide. http://www.globalchange.umich.edu/globalchange2/current/lectures/fisheries/fisheries.html Data exists which suggests some fisheries are over and under exploited. -
Toward an Ecosystem Approach to Bottom Trawling in Canada
dragging our assets TOWARD AN ECOSYSTEM APPROACH TO BOTTOM TRAWLING IN CANADA OCTOBER 2007 dragging our assets TOWARD AN ECOSYSTEM APPROACH TO BOTTOM TRAWLING IN CANADA HEALTH AND ENVIRONMENT SERIES BY DAVID R. BOYD Trudeau Scholar, Institute for Resources, Environment and Sustainability, University of British Columbia Adjunct Professor, School of Resource and Environmental Management, Simon Fraser University Senior Associate, POLIS Project on Ecological Governance, University of Victoria Dragging Our Assets: Toward an Ecosystem Approach to Bottom Trawling in Canada © 2007 David Suzuki Foundation ISBN 1-897375-10-7 Canadian Cataloguing in Publication Data for this book is available through the National Library of Canada written by: Scott Wallace, PhD David Suzuki Foundation sustainable fisheries analyst Scott Wallace has a PhD in Resource Management from the University of British Columbia. His research interests include fisheries impacts on marine ecosystems, the use of marine protected areas as a tool for fisheries management, ecosystem-based fisheries management, and the conservation of marine species at risk. Acknowledgements The David Suzuki Foundation would like to thank Susanna Fuller at the Ecology Action Centre in Halifax, Nova Scotia for her contributions to the Atlantic sections of this report. Special thanks to Jason Curran, Ian Hanington, Jay Ritchlin, Jodi Stark and Bill Wareham for contributions in editing of this report. This report was made possible by the generous support of the R. Howard Webster Foundation. David Suzuki Foundation 2211 West 4th Avenue, Suite 219 Vancouver, B.C., Canada V6K 4S2 www.davidsuzuki.org Tel 604.732.4228 Fax 604.732.0752 design and production: Alaris Design photographs: Diagram of trawling (page 3): Joe Shoulak (www.joeshoulak.com); Figure 1 (page 5): Department of Fisheries and Oceans; Figure 7 (page 14): Dr. -
Assessment of Queensland East Coast Otter Trawl Fishery (PDF
Assessment of the East Coast Otter Trawl Fishery November 2013 © Copyright Commonwealth of Australia, 2013. Assessment of the Queensland East Coast Otter Trawl Fishery November 2013 is licensed by the Commonwealth of Australia for use under a Creative Commons By Attribution 3.0 Australia licence with the exception of the Coat of Arms of the Commonwealth of Australia, the logo of the agency responsible for publishing the report, content supplied by third parties, and any images depicting people. For licence conditions see: http://creativecommons.org/licenses/by/3.0/au/. This report should be attributed as ‘Assessment of the Queensland East Coast Otter Trawl Fishery November 2013, Commonwealth of Australia 2013’. Disclaimer This document is an assessment carried out by the Department of the Environment of a commercial fishery against the Australian Government Guidelines for the Ecologically Sustainable Management of Fisheries – 2nd Edition. It forms part of the advice provided to the Minister for the Environment on the fishery in relation to decisions under Part 13 and Part 13A of the Environment Protection and Biodiversity Conservation Act 1999. The views and opinions expressed do not necessarily reflect those of the Australian Government or the Minister for the Environment. While reasonable efforts have been made to ensure that the contents of this publication are factually correct, the Commonwealth does not accept responsibility for the accuracy or completeness of the contents, and shall not be liable for any loss or damage that may be occasioned directly or indirectly through the use of, or reliance on, the contents of this publication. Contents Table 1: Summary of the East Coast Otter Trawl Fishery ................................... -
Policy, Power and Science
Policy, Power and Scienee The Implementation of Turtle Excluder Device Regulations in the U.S. ~ulf Stiles, Geoffrey of Mexico Shrimp Fishery 1971 Labour Recruitment andtheFamilyCrewinNewfoundland. In: Raoul R. Andersen(Ed.), North Atlantic Maritime Cultures: AnthropologicalEssuys on Changing Adaptations. The Hague: Mouton Publishers. Taylor, Howard E E. Paul Durrenberger 1970 Balance in Small Groups. New York: Van Nostrand Rheinhold. liniversity of Iowa Thiessen, Victor and Anthony Davis 1988 Recruitment to Small Boat Fishing and Public Policy in the Atlantic Canadian Fisher- ies. Canadian Review of Sociology and Anthropology 25(4):601-25. ABSTRACTFor the past decade shrimpers, environmentalists, sport fishermen, and fisher-' ies administrators have been involved in legislative, legal, and administrative battles over the use of devices to exclude sea turtles from shrimpers' trawl nets to prevent their drowning. In the summer of 1989. the reculations- reauirinc. - such devices becan- to be enforced. To oro- test, shrimpers blockaded several ports along the Texas and Louisiana coast. I describe what appears to be the final implementation of the turtle excluder device (TED) regulations on theGulf of Mexico. Becauseit is central to the rhetoricof many poiicydiscussions, I analyze the role "science" and scientists have played in this process. The Blockade On 23 July 1989, a week after shrimpingseasonopenedinTexas, angry shrimpers drew their boats into lines to block egress from and access to ship channels at Galveston, Port Arthur, Port Aransas, and Brownsville, Texa~,and Cameron, Louisiana. At Aransas Pass, 150 or more shrimp boats overwiielmed the Coast Guard and caught their cutters in the blockade. The Coast Guard attempted to break the blockade by blasting shrimpers with water and cutting their anchor cables. -
Wageningen and EFARO on the Green Deal, Farm to Fork and Food from the Oceans 22.1.21 10.00 – 12.00 by Webex
Meeting: Wageningen and EFARO on the Green Deal, Farm to Fork and Food from the Oceans 22.1.21 10.00 – 12.00 by webex Welcome from Luc van Hoof, Executive Secretary of EFARO Luc welcomed over 40 participants and experts who had joined to discuss circular food production in our oceans. Start with Professor Louise Fresco, Chair of EFARO: Changing philosophy about changing production and how we see the sea In the least 10-15 years we’ve seen a slow and gradual change in the philosophy on the use of natural resources for food + feed. Concepts like biobased, local, circular have all come into place. It’s pushed by growing distance between urban consumers and the realities of how production and use of resources takes place. There’s also impetus from the Paris agreement, the need to be more carbon neutral, and nature conservation is a goal in itself. This has led to a political shift, e.g. the Green Deal. It’s our task to provide a scientific basis for it. The idea of circularity is complicated. And there are issues of carbon neutrality and positivity (carbon fixing). The overall thing is that this is about quality not quantity. What is circularity: Waste from one trophic level becomes used for another trophic level - resource use efficiency. It also means nutrient efficiency (nitrogen, phosphates etc). Try to develop a more integrated perspective of land based and marine based sources of nutrients. What is the optimal protein base and how to get best proteins for our food? So it’s the whole world of biobased economy. -
Teds for All Trawls: a Net Positive for Fishermen and Sea Turtles
TEDs for All Trawls: A Net Positive for Fishermen and Sea Turtles May 2016 Authors: Benjamin Carr, Samantha Emmert, Patrick Mustain and Lora Snyder Executive Summary Bycatch, the catch of non-target fish and ocean wildlife, is one of the greatest threats to healthy fish populations and marine ecosystems around the world. Global estimates show that fishermen are discarding as much as 40 percent of what they catch, totaling nearly 63 billion pounds every year of wasted fish and ocean wildlife. Experts say one type of fishing in particular, shrimp trawling, has one of the highest bycatch rates among current fishing practices in the world. This can be seen in the United States, where, in 2013, the Gulf of Mexico shrimp trawl fishery discarded an estimated 242 million pounds of seafood and ocean wildlife - about 62 percent of its total catch. In fact, if the fish were of marketable size, the value of the discarded catch in the Gulf of Mexico shrimp trawl fishery would equate to more than $350 million in wasted fish. Additionally, according to government estimates, Southeast shrimp trawl nets come into contact with endangered and threatened sea turtles half-a-million times a year, potentially resulting in 50,000 deaths. But what if there was an easy step our government could take to help ensure that our domestic, wild- caught shrimp was more sustainably caught? A simple solution comes in the form of Turtle Excluder Devices (TEDs), which are metal grates positioned inside the openings of shrimp nets that allow turtles to escape, preventing them from drowning. -
Impact of Bottom Trawling on Sediment Biogeochemistry: a Modelling Approach Emil De Borger1,2, Justin Tiano2,1, Ulrike Braeckman1, Adriaan D
https://doi.org/10.5194/bg-2020-328 Preprint. Discussion started: 21 September 2020 c Author(s) 2020. CC BY 4.0 License. Impact of bottom trawling on sediment biogeochemistry: a modelling approach Emil De Borger1,2, Justin Tiano2,1, Ulrike Braeckman1, Adriaan D. Rijnsdorp3, Karline Soetaert2,1. 1Ghent University, Department of Biology, Marine Biology Research Group, Krijgslaan 281/S8, 9000 Ghent, Belgium 5 2Royal Netherlands Institute of Sea Research (NIOZ), Department of Estuarine and Delta Systems, and Utrecht University, Korringaweg 7, P.O. Box 140, 4401 NT Yerseke, The Netherlands 3Wageningen Marine Research, Wageningen University & Research, IJmuiden, The Netherlands Correspondence to : Emil De Borger ([email protected]) Abstract 10 Bottom trawling in shelf seas can occur more than 10 times per year for a given location. This affects the benthic metabolism, through a mortality of the macrofauna, resuspension of organic matter from the sediment, and alterations of the physical sediment structure. However, the trawling impacts on organic carbon mineralization and associated processes are not well known. Using a modelling approach, the effects of increasing trawling frequencies on early diagenesis were studied in five different sedimentary environments, simulating the effects of a deep penetrating gear (e.g. a tickler chain beam trawl) and a 15 shallower, more variable penetrating gear (e.g. an electric pulse trawl). Trawling events strongly increased oxygen and nitrate concentrations in surface sediment layers, and led to significantly lower amounts of ammonium (43 – 99 % reduction) and organic carbon in the top 10 cm of the sediment (62 – 96 % reduction). As a result, total mineralization rates in the sediment were decreased by up to 28 %. -
BOTTOM TRAWLING IMPACTS in the BALTIC Editorial and Production Team: Hannah Griffiths Berggren, Valerie De Liedekerke, Ottilia Thoreson, Evan Jeffries, Brandline
2020 BALTIC A SEA UNDER PRESSURE: BOTTOM TRAWLING IMPACTS IN THE BALTIC Editorial and Production Team: Hannah Griffiths Berggren, Valerie de Liedekerke, Ottilia Thoreson, Evan Jeffries, Brandline Authors: Valerie de Liedekerke, Ottilia Thoreson, Sian Owen, Hannah Griffiths Berggren Special thanks: Professor Rashid Sumaila (Institute for the Oceans and Fisheries – The University of British Columbia); Louise Lieberknecht, Georgios Fylakis, Màrk Aguera and Torben Dedring (GRID-Arendal); Andreas Struck (Navama – Technology for Nature); Marco Milardi (Principal Scientist, Fisheries New Zealand - Tini a Tangaroa, Ministry for Primary Industries - Manatū Ahu Matua). We would also like to thank everyone who kindly provided data and reviewed the report. This report was made possible thanks to a substantial contribution of funds from Monika Selkman. Cover Photo: © Stefan Rosengren / Alamy Stock Photo © Alamy Stock Photo / Solvin Zankl (montage) 2 • WWF BALTIC ECOREGION PROGRAMME 2020 CONTENTS i. EXECUTIVE SUMMARY 4 1. BACKGROUND 6 1a. The Baltic Sea under pressure 6 1b. What is ‘bottom trawling’? 8 2. THE IMPACTS OF BOTTOM TRAWLING 10 2a. Physical and biological impacts 10 2b. The future of the Baltic Sea fishing fleet 17 3. RELEVANT POLICY FRAMEWORKS AND COMMITMENTS 22 3a. Global policy frameworks 22 3b. European policy commitments 24 3c. Regional Baltic policy commitments 27 3d. Examples of how governance is failing 28 4. SHOWCASING POSITIVE MANAGEMENT EXAMPLES 30 5. RECOMMENDATIONS 38 ACRONYMS 40 REFERENCES 41 © Alamy Stock Photo / Solvin Zankl (montage) 3 • WWF BALTIC ECOREGION PROGRAMME 2020 EXECUTIVE SUMMARY The Baltic Sea is surrounded by nine countries, whose accordingly. Forty per cent of the entire Baltic seafloor, futures are tightly connected to each other and to their an area of 180,000km2, has been disturbed by maritime shared marine resources. -
Factors Affecting Elasmobranch Escape from Turtle Excluder Devices
Fisheries Research 224 (2020) 105456 Contents lists available at ScienceDirect Fisheries Research journal homepage: www.elsevier.com/locate/fishres Factors affecting elasmobranch escape from turtle excluder devices (TEDs) in a tropical penaeid-trawl fishery T Matthew J. Campbella,d,*, Mark L. Tonksb, Margaret Millerb, David T. Brewerc, Anthony J. Courtneya, Colin A. Simpfendorferd a Queensland Department of Agriculture and Fisheries, Agri-Science Queensland, Ecosciences Precinct, GPO Box 267, Brisbane, Queensland, 4001, Australia b Commonwealth Scientific and Industrial Research Organisation (CSIRO) Oceans and Atmosphere, QLD Biosciences Precinct, Building 80, Services Road, St Lucia, Queensland, 4067, Australia c David Brewer Consulting, 91 Raeburn Street, Manly West, Queensland, 4179, Australia d Centre for Sustainable Tropical Fisheries and Aquaculture, James Cook University, 1 James Cook Drive, Townsville, Queensland, 4811, Australia ARTICLE INFO ABSTRACT Handled by Bent Herrmann The use of turtle excluder devices (TEDs) has resulted in fewer elasmobranchs (i.e. sharks and rays) caught in fi fi ff Keywords: tropical penaeid-trawl sheries. However, very few studies in the primary literature have quanti ed the e ects Turtle excluder device of various TED design aspects affecting the escape of elasmobranchs. Data collected by observers on board TED commercial trawlers operating in Australia’s northern prawn fishery (NPF) during 2001 were re-examined to Elasmobranch quantify the effect of TEDs on catches of various elasmobranchs. During this sampling, a total of 6204 elas- Discards mobranchs were caught from 1440 net trawls. The 34 species identified, from 15 families and four taxonomic Grid orientation orders, were dominated by small carcharhinids (n = 2160, median total length = 75 cm) and dasyatids Bar space (n = 2030, median disc width = 24 cm). -
Ecosystem Approach to Fisheries Management (EAFM) Expands on Fisheries Management to Include Additional Ecosystem Considerations (Figure 1)
Ecosystem Approach LME: LEARN to Fisheries Management POLICY BRIEF Managing fisheries and ecosystem interactions for social, economic and environmental benefits © Shutterstock/kittipong sirirattatanon Context and importance of the problem The majority of the world’s fisheries are over exploited with the ecosystems that sustain them becoming increasingly degraded. Maintaining productive and sustainable fisheries is essential to feeding the planet’s growing population while also supporting local livelihoods and commercial industries. The most productive and accessible regions of the world’s marine fisheries are Large Marine Ecosystems (LME) that join the land and the open ocean. Management of these expansive and diverse ecosystems and the fisheries they support requires effective cooperation between neighbouring and regional countries. Box 1: Principles of EAFM Fisheries should be managed to limit their impacts on the ecosystem to the extent possible taking in consideration the following: 1. Ecological relationships between harvested, dependent and associated species should be maintained 2. Management measures should be compatible across the entire distribution of the resources, which includes across jurisdictions and management plans 3. The precautionary approach should be applied because the knowledge on ecosystems is incomplete 4. Governance should ensure both human and ecosystem wellbeing and integrity (Garcia, 2003). © Shutterstock/pixinoo The Ecosystem Approach to Fisheries Management (EAFM) expands on fisheries management to include additional ecosystem considerations (Figure 1). This is proving successful at the LME scale when implemented through coordinated partnership between national bodies and managed at a regional-scale. The EAFM brings a more effective and holistic management approach to address the sustainability of fisheries, essentially focusing on the ecosystem rather than a particular target species.