A Review Of The Biology And Fisheries Of Hilsa Ilisha In The Upper Bay Of Bengal

WORKING PAPERS - BOBP/WP/37

A Review Of The Biology And Fisheries Of Hilsa Ilisha In The Upper Bay Of Bengal


Dr. B. T. Antony Raja
Consultant, Bay of Bengal Programme


Executing Agency: FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS

Funding Agency: United Nations Development Programme

Marine Fisheries Resources Management in the Bay of Bengal
Colombo, Sri Lanka, October 1985

Table of Contents


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© FAO 2004

PREFACE

This paper describes the Hilsa shad fishery in the upper Bay of Bengal (Orissa and West Bengal in India; Bangladesh and Burma). It reviews current knowledge on the biology and fishery of Hilsa ilisha, sets out the findings of field observations in these areas, and makes recommendations on future work needed to understand better the nature of the stocks exploited in India and Bangladesh.

The study on which this paper is based was initiated in September 1983 and continued in intermittent spells till March 1984.

The paper and the study are activities of the project “Marine Fishery Resources Management in the Bay of Bengal”: RAS/81/051, which is funded by the UNDP (United Nations Development Programme), and executed by the FAO (Food and Agriculture Organization of the United Nations) under its Bay of Bengal Programme (BOBP).

The project has a duration of four years; it commenced in January 1983. Its immediate objective is to improve the practice of fishery resources assessment among participating countries and to stimulate and assist in joint assessment and management activities between countries sharing fish stocks.


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TABLE OF CONTENTS


WORKING PAPERS - BOBP/WP/37pdf

PREFACE

I. INTRODUCTION

II. ENVIRONMENT AND DISTRIBUTION

III. MIGRATION AND BEHAVIOUR

IV. BIONOMICS AND LIFE HISTORY

Reproduction
Larval history
Juvenile history
Adult history
Food and feeding habits
Length-weight relationship and condition factor

V. FISHERY

Fishing methods
Fishing season
Age/size composition in the fishery Catch
Population
Factors affecting the fishery

VI. RACIAL INVESTIGATIONS

VII. MANAGEMENT

Fisheries management and regulations
Fish farming

VIII. CURRENT INVESTIGATIONS IN INDIA AND BANGLADESH

India
Bangladesh

IX. GENERAL APPRAISAL

X. RECOMMENDATIONS

Studies on fishery and biology of the marine stocks
Racial Investigations
Academic studies
Other studies

XI. SUMMARY

XII. BIBLIOGRAPHY

FIGURES AND TABLESpdf

PUBLICATIONS OF THE BAY OF BENGAL PROGRAMMEpdf