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Bay of Bengal Programme (BOBP) for Fisheries Development - BOBP/WP/89 Studies of Interactive Marine Fisheries of Bangladesh Small-scale Fisherfolk Communities |
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FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
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© FAO 2008
| Chowdhury, Z.A.; Huq, Md. Q.M.; Islam, Md. S.; Khan, Md. G; Mustafa, Md. G.; Paul, S.C.; Quayum, S.A.; Sada, Md. N. Studies of Interactive Marine Fisheries of Bangladesh Bay of Bengal Programme (BOBP) for Fisheries Development - BOBP/WP/89 pp. 125 Abstract Concerned about the effects of the estuarine set bagnet fishery on the shrimp and
finfish resources and also on other marine fisheries dependent on the same resources,
the Bangladesh Department of Fisheries, with the assistance of the Bay of Bengal
Programme (BOBP), conducted a two-year (1989-91) biosocioeconomic assessment
of the estuarine set bagnet fishery. In ordcr to make the assessments needed for
management purposes, it was necessary to gather information on other interactive
fisheries: the marine set bagnet, trammelnet, bottom longline and shrimp trawl fisheries. The only major marine fishery not included was the Hilsa fishery, which does This report contains the information (catch rate, seasonality, catch, effort, biological parameters and cost and earnings) gathered in the estuarine set bagnet and other interactive fisheries, but the socioeconomic information and biosocioeconomic assessment results are published separately as BOBP/WP/90 and BOBP/REP/62. |
Part 1 (305 Kb)
CONTENTS
PREFACE
Part 2 (321 Kb)
SHRIMP FRY COLLECTION
1. Introduction
2. Methodology
2.1 Sampling stations and areas
2.2 Gear
2.3 Sampling procedures
2.4 Estimation of P monodon (tiger shrimp) production
2.5 Production estimates for other by-catch
2.6 Estimation of total manpower engaged in shrimp fry-collection
2.7 Estimation of earnings
3. Results
3.1 Number of fry-collecting gear units
3.2 Species composition
3.3 Catch rates
3.4 Production
3.5 Number of shrimp fry-collectors
3.6 Economics of shrimp fry-collection
4. Discussion
5. References
Appendix 1. Species composition in pushnet and fixed hagnet (% of numbers)
Part 3 (693 Kb)
THE ESTUARINE SET BAGNET FISHERY
6. Introduction
7. Methodology
7. 1 Sampling stations
7.2 Classification of nets
7.3 Sampling programme
7.4 Data processing and analysis
8. Results
8. 1 Characteristics and operation of the set hagnet
8.2 Species composition
8.3 Size composition of major species
8.4 Catch rates
8.5 Effects of environmental conditions
8.6 Production
8.7 Biology of major species
8.8 Economics ot the fishery
9. Discussion
10. References
Part 4 (330 Kb)
THE BEACH SEINE FISHERY OF TEKNAF
11. Introduction
12. The Beach Seine and its Mode of Operation
13. Methodology
14. Results
14.1 Species composition
14.2 Catch rates
14.3 Production
14.4 Size of major species
14.5 Costs and earnings analysis
14.6 Shares and wages
14.7 Fish and shrimp prices
14.8 Employment
15. Discussion
16. References
Appendix II. Monthly average price (Tk/kg) of selected species or species groups in beach seine catch at the two stations
Part 5 (494 Kb)
THE MARINE SET BAGNET FISHERY
17. Introduction
18. Methodology
19. Fishing Grounds and Season
20. Fishing Gear and Craft
20.1 The gear
20.2 The craft
21. Results
21.1 Spectes composit ton
21.2 Catch rate
21.3 Production
21.4 Size ranges ot major specres
22. Economics of the Fishery
22.1 Price ot shrimp and fish
22.2 Costs and earnings
23. Conclusions
24. References
Appendix Ill. Species composition of MSI-3N catches in three areas during the month of January 1991 (by weight)
Part 6 (261 Kb)
THE TRAMMELNET FISHERY
25. Introduction
26. Methods
26.1 Census
26.2 Sampling programme
26.3 Estimation ot production
26.4 Identification of species
26.5 Cost and earnings esttmation
27. Results
27.1 The fishing gear
27.2 The fishing craft
27.3 Fishing area and operation
27.4 Fishing effort
27.5 Catch composition
27.6 Catch rate
27.7 Production
27.8 Size composition
27.9 Cost and earnings
28. Discussion
29. Conclusion
30. References
Part 7 (401 Kb)
THE BOTTOM TRAWL FISHERY
31. Introduction
32. Material and Methods
32.1 The gear
32.2 Selection of survey cruises
32.3 Selection of survey stations
32.4 Data analysis
33. Results
33.1 Species composition
33.2 Catch rate
33.3 Production
33.4 Population parameters
34. References
Appendix IV. Estimated production for shrimp trawlers during 1989-90
Part 8 (401 Kb)
THE BOTTOM LONGLINE FISHERY FOR CROAKER (SCIAENIDAE)
35. Introduction
36. Methodology
36.1 Fishing area
36.2 Craft, gear and operation
36.3 Fishing season
36.4 Catch rate and composition
36.5 Annual production
36.6 Processing and marketing
37. Economics of the Longline Fishery
37.1 Socioeconomics
Errata
Publications of the Bay of Bengal Programme