Nursery Cage Rearing of Post - Larvae of Penaeus Monodon in West Bengal, India -BOBP/WP/86

WORKING PAPERS - BOBP/WP/86

Nursery Cage Rearing of Post - Larvae of Penaeus Monodon in West Bengal, India

by
Hendrik Nielsen
Aquaculturist (APO)
Robert Hall
Economist (APO)


Executing Agency: FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS

Bay of Bengal Programme Madras, India, 1993

Table of Contents


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© FAO 2004

PREFACE

Ever since the shrimp farming industry took off in Bangladesh and West Bengal, shrimp fry collection has developed into a major income-generating activitiy for thousands of people living in the coastal belts of these areas.

This paper describes trials with nursery rearing of the tiger shrimp (Penaeus monodon) in floating cages. They were carried out in Ramnagar, Medinipur District, West Bengal, India, from 1990 to 1992. The purpose was to introduce a technology by which the fry-catchers could augment their income by nursing the shrimp fry to a larger size, with higher market value, and be in a better bargaining position vis-a-vis the traders.

The trials were undertaken by a group of shrimp fry-catchers in Ramnagar, with support from the Bay of Bengal Programme (BOBP). The subproject was sponsored by BOBP’s “Small-Scale Fisherfolk Communities in the Bay of Bengal”, (GCP/RAS/118/MUL), a project jointly funded by SIDA (Swedish International Development Agency) and DANIDA (Danish International Development Agency) and executed by FAO (Food and Agriculture Organization of the United Nations).


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TABLE OF CONTENTS


WORKING PAPERS - BOBP/WP/86pdf

1. INTRODUCTION
2. NURSERY CAGE AND REARING METHODS

2.1 Site selection criteria
2.2 Description of the cage
2.3 Stocking
2.4 Feeding
2.5 Harvest strategy
2.6 A picture record of nursery culture

3. THE SHRIMP FRY MARKET
4. OBSERVATIONS

4.1 The production unit
4.2 Resources
4.3 Results of trials

5. FINANCIAL ANALYSIS

5.1 Viability
5.2 Sensitivity analysis

6. CONCLUSIONS

Technical aspects
Social aspects
Marketing
Future directions

FIGURES AND MAPS

1. The Ramnagar blocks I and II and Southwestern Medinipur, West Bengal
2. Effect of stocking of viability
3. Effect of survivability of viability
4. Effect of price margin on viability
5. Price margins of tiger shrimp fry

APPENDIX. PEOPLE’S PARTICIPATION

1. Participant selection
2. Training methods

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