Shark Depredation and Unwanted Bycatch in Pelagic Longline

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Financial support for the research on which the content of this publication is based has been generously provided by the Western Pacific Regional Fishery Management Council (WPRFMC), Regional Seas Programme of the United Nations Environment Programme (UNEP), Royal Caribbean International and the Gordon and Betty Moore Foundation. Disclamer The contents of this report do not necessarily reflect the views of WPRFMC, UNEP, Royal Caribbean International, the Moore Foundation or other contributory organizations. The designations employed and the presentations do not imply the expression of any opinion whatsoever on the part of WPRFMC, UNEP, the Moore Foundation or other contributory organizations concerning the legal status of any country, territory, city or area in its authority, or concerning the delimitation of its frontiers or boundaries. © 2007 Western Pacific Regional Fishery Management Council This publication may be reproduced in whole or in part and in any form for educational or non-profit purposes without special permission from the copyright holder, provided acknowledgement of the source is made. No use of this publication may be made for resale or for other commercial purpose whatsoever without the prior permission in writing from WPRFMC. Western Pacific Regional Fishery Management Council 1164 Bishop St., Suite 1400 Honolulu, Hawaii, 96813 USA http://www.wpcouncil.org Cover photos: Blue shark: © Randy Morse, GoldenStateImages.com; shark-damaged yellowfin tuna (courtesy of the U.S. National Marine Fisheries Service Pacific Islands Regional Office); branch lines in a hook box on a Chilean artisanal longline vessel (courtesy of Pro Delphinus); multifilament mainline aboard a Chilean artisanal longline vessel (courtesy of Pro Delphinus); U.S. North Atlantic longline swordfish vessel landing a blue shark (courtesy of Greg Skomal, Massachusetts Division of Marine Fisheries); tuna being offloaded from a Chilean industrial longline swordfish vessel (courtesy of Pro Delphinus); Chilean artisanal longline vessels, Iquique seaport (courtesy of Pro Delphinus). For Bibliographic purposes, this document may be cited as: Gilman, E., Clarke, S., Brothers, N., Alfaro-Shigueto-J., Mandelman, J., Mangel, J., Petersen, S., Piovano, S., Thomson, N., Dalzell, P., Donoso, M., Goren, M., Werner, T. 2007. Shark Depredation and Unwanted Bycatch in Pelagic Longline Fisheries: Industry Practices and Attitudes, and Shark Avoidance Strategies. Western Pacific Regional Fishery Management Council, Honolulu, USA. ISBN: 1-934061-06-9
Shark Depredation and Unwanted Bycatch in Pelagic Longline Fisheries Industry Practices and Attitudes, and Shark Avoidance Strategies By: Eric Gilman a , Shelley Clarke b , Nigel Brothers c , Joanna Alfaro-Shigueto d , John Mandelman e , Jeff Mangel d , Samantha Petersen f , Susanna Piovano g , Nicola Thomson h , Paul Dalzell i , Miguel Donoso j , Meidad Goren f , Tim Werner e a b c d e f g h i j Blue Ocean Institute, USA National Research Institute of Far Seas Fisheries, JAPAN Marine Ecology and Technology Consultancy, AUSTRALIA Pro Delphinus, PERU New England Aquarium, USA BirdLife South Africa, SOUTH AFRICA Università di Torino, ITALY Environment Consultants Fiji, FIJI Western Pacific Regional Fishery Management Council, USA Instituto de Fomento Pesquero, CHILE Gordon and Betty MOORE F O U N D A T I O N
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Page 9 and 10: Contents Summary and Conclusions 1
Page 11 and 12: Contents Appendix 3. Fiji Pelagic L
Page 13: Contents Appendix 8. USA Hawaii Lon
Page 16 and 17: Shark Depredation and Unwanted Byca
Page 19 and 20: Chapter 1 Introduction and Methods
Page 21 and 22: Introduction and Methods 1.2. Metho
Page 23 and 24: Fishing Gear and Operational Charac
Page 25 and 26: Fishing Gear and Operational Charac
Page 27 and 28: Shark Catch Rates and Disposition T
Page 29 and 30: Chapter 4 National and Internationa
Page 31 and 32: National and International Measures
Page 33 and 34: Economic, Practical, Ecological and
Page 35 and 36: Economic, Practical, Ecological and
Page 37 and 38: Chapter 6 Industry Attitudes and Pr
Page 39 and 40: Industry Attitudes and Practices Lo
Page 41 and 42: Industry Attitudes and Practices Fi
Page 43 and 44: Chapter 7 Potential of Deterrents,
Page 45 and 46: Potential of Deterrents, Hotspot Av
Page 47 and 48: References Campana, S.E., L. Marks,
Page 49: References Neves dos Santos, M., Ga
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Shark Depredation and Unwanted Byca
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Appendix 5 Japan Pelagic Longline F
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Japan Pelagic Longline Fisheries Fi
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Japan Pelagic Longline Fisheries mo
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Japan Pelagic Longline Fisheries Ta
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Japan Pelagic Longline Fisheries is
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Japan Pelagic Longline Fisheries ta
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Japan Pelagic Longline Fisheries In
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Japan Pelagic Longline Fisheries A5
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Appendix 6 Peru Artisanal Mahimahi
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Peru Artisanal Mahimahi And Shark L
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Appendix 7 South Africa Pelagic Lon
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South Africa Pelagic Longline Tuna
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Appendix 8 USA Hawaii-based Pelagic
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USA Hawaii-based Pelagic Longline S
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Appendix 9 USA Atlantic, Gulf of Me
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USA Atlantic, Gulf of Mexico and Ca
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Shark Depredation and Unwanted Bycatch in Pelagic Longline

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