Bycatch in small-scale tuna fisheries: A global study

FAO Fisheries and Aquaculture Technical Paper No. 560

Bycatch in small-scale tuna fisheries
A global study

by
Robert Gillett
FAO Consultant
The Republic of Fiji

 


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Food and Agriculture Organization of the United Nations
Rome 2011


ABSTRACT

Gillett, R.
Bycatch in small-scale tuna fisheries: A global study.
FAO Fisheries and Aquaculture Technical Paper. No. 560. Rome, FAO. 2011. 116p.

The aim of the study was to quantify catches of tuna and bycatch in small-scale pelagic fisheries. Additional goals were to identify on a global scale information gaps, major issues and management concerns associated with these fisheries and their bycatch.The study made estimates of tuna and non-tuna catches in the small-scale fisheries of 181 ocean areas.

The total amount of tuna produced by these fisheries was around 681 000 tonnes per year in the mid-2000s. About 753 000 tonnes of non-tuna was produced by those same fisheries.

The major priorities for improving our understanding of bycatch in small-scale pelagic fisheries are improved coverage of bycatch by the tuna regional fisheries management organizations (RFMOs) that collect such information, increased involvement of the other tuna RFMOs in small-scale pelagic fisheries, verification of the high reported catches from small-scale pelagic fisheries in Indonesia, and greater technical details on the small-scale pelagic fisheries that take sensitive species.



CONTENTS

Preparation of this document
Abstract
Acknowledgements
Acronyms and abbreviations
Executive summary


1. Introduction

 

Background

 

Why study the bycatch of small-scale tuna fisheries?

 

The study

 

Some definitions and conventions used in this document


2. Regional findings

 

Eastern Pacific

 

Caribbean

 

Non-Caribbean areas of the Western Atlantic

 

West Africa

 

Northeast Atlantic

 

Mediterranean

 

Indian Ocean

 

East and Southeast Asia

 

Oceania


3. Some general issues

 

Data quality

 

Why bycatch occurs


4. Comparisons between regions and countries


5. Identification of dedicated tuna fisheries


6. Comparisons between gear types


7. Turtles, marine mammals and seabirds


8. Discards


9. Management of bycatch

 

General

 

Mitigation measures – conceptual aspects

 

Mitigation measures – specific groups of sensitive bycatch


10. Improving information on small-scale pelagic fisheries: priority areas


11. Conclusion


References


Appendixes




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