[画像:Global study of shrimp fisheries]

FAO Fisheries Technical Paper. No. 475

Global study of shrimp fisheries


by
R. Gillett
FAO Consultant
Fiji


FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
Rome, 2008

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ISBN 978-92-5-106053-7

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© FAO 2008

Gillett, R.
Global study of shrimp fisheries.
FAO Document technique sur les p鹹hes. No. 475. Rome, FAO. 2008. 331p.

Abstract

This report summarizes the results of a global study on the development and present status of shrimp fisheries, with a focus on direct and indirect social, economic and environmental impacts. The study reviews the current situation, problems and issues, as well as the solutions found and the trade-offs made. Important topics related to shrimp fisheries are examined in ten countries representative of geographic regions, together with their various significant shrimp fishing conditions. The ten countries selected are: Australia, Cambodia, Indonesia, Kuwait, Madagascar, Mexico, Nigeria, Norway, Trinidad and Tobago and the United States of America. The results of the country reviews are combined with specialized studies on important topics related to shrimp fisheries to produce the major findings of the overall study.

The recent world shrimp catch is about 3.4 million tonnes per year, with Asia as the most noteworthy area for shrimp fishing. World production of shrimp, both captured and farmed, is about 6 million tonnes, of which about 60 percent enters the world market. Shrimp is now the most important internationally traded fishery commodity in terms of value. In many tropical developing countries, it is the most valuable fishery export; the employment aspect is also significant. The economic importance of shrimp needs to be reconciled with considerable concern about the environmental impacts of shrimp fisheries.

Observations are made about many aspects of shrimp fisheries. These include: the development of shrimp fishing; structure of the shrimp fisheries; target species; catch/ effort; economic contributions; trade; bycatch; fuel; biological aspects; impacts on the physical environment; impacts of large-scale shrimp fishing on small-scale fisheries; management; enforcement; research; data reporting; and the impacts of shrimp farming on shrimp fishing.

A major conclusion of the study is that there are mechanisms, instruments and models to enable effective mitigation of many of the difficulties associated with shrimp fishing, taking a precautionary and ecosystem approach to fisheries. The inference is that, with an appropriate implementation capacity, shrimp fishing, including shrimp trawling, is indeed manageable. In many countries, however, weak agencies dealing with fisheries, lack of political will and inadequate legal foundations cause failures in the management of shrimp fisheries. The report makes specific recommendations in a few key areas: the management of small-scale shrimp fisheries, capacity reduction; and access to the fishery.


Contents



Preparation of this document (Download 907 kb)
Abstract
Acknowledgements
Foreword
Acronyms and abbreviations
Executive summary

Introduction

Development of the study
Methodology
Other considerations
Part 1 – MAJOR ISSUES IN SHRIMP FISHERIES (Download 861 kb - 619 kb)

1. History and development of shrimp fishing

2. Structure of shrimp fisheries

Main features at the national and global levels
Main fishing gear
Alternatives to trawl gear

3. Shrimp species, catches and fishing effort

Catches by shrimp species
Catches by country
Shrimp fishing effort and capacity

4. Economic contribution of shrimp fishing

5. Trade aspects

Major features of the shrimp trade
Major shrimp markets
Important issues in the shrimp trade

6. Bycatch issues

General
Quantifying bycatch
Major bycatch issues
The FAO Discards Study
Bycatch species
International initiatives to reduce bycatch
Biological research on bycatch
Bycatch reduction devices
Effectiveness of bycatch reduction efforts
Bycatch in non-trawl shrimp fisheries
Bycatch management

7. Fuel use in shrimp fisheries

General
Country experience
Mitigation of fuel cost increases
Fuel subsidies

8. Profitability of shrimp fishing and resource rent

Country experience
Improving profitability
Resource rent

9. Biological aspects of shrimp

Basic biology and life histories
Important issues relating to shrimp resources and biology
Stock assessment

10. Impacts of shrimp fishing on the bottom habitat

General
Describing the impact
Developed vs developing countries
Results of research on physical impacts
Mitigation
Impact on biodiversity

11. Interactions between large- and small-scale fisheries

Importance of the interaction
Types of interactions
Mitigation of negative interactions

12. Management of shrimp fisheries

General
Main shrimp fishery management issues in the ten study countries
The shrimp fisheries management framework
Management interventions
Open and limited access
Management of small-scale shrimp fisheries
Ecosystem approach to fisheries
Legislation for shrimp fisheries management
Management costs
Difficulty in managing shrimp fisheries
Cold-water shrimp fishery management

13. Enforcement

Enforcement issues in shrimp fisheries
Enforcement issues in small-scale shrimp fisheries
Electronic vessel monitoring
Enforcement costs

14. Shrimp fishery research issues

Past and current research
Important national issues in shrimp research
GEF/UNEP/FAO project research
Research on small-scale shrimp fisheries
Research costs

15. Data reporting

16. Impacts of shrimp farming on shrimp fishing activities

General information on shrimp farming
General impacts
Economic impacts in the marketplace
Destruction of mangrove forests
Postlarvae and broodstock
Escapes of cultured shrimp
Other impacts of shrimp farming on shrimp fishing
Other considerations

17. Conclusions

Is shrimp fishing manageable?
Management of small-scale shrimp fisheries in developing countries
Benefits and costs
Australia
Some suggestions

Part 2 – SHRIMP FISHERIES IN SELECTED COUNTRIES (Download 722 kb - 780 kb)

Shrimp fishing in Australia

Shrimp fishing in Cambodia

Shrimp fishing in Indonesia

Shrimp fishing in Kuwait

Shrimp fishing in Madagascar

Shrimp fishing in Mexico

Shrimp fishing in Nigeria

Shrimp fishing in Norway

Shrimp fishing in Trinidad and Tobago

Shrimp fishing in the United States of America

REFERENCES (Download 837 kb)

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