The Effect of Artificial Reef Installation on the Biosocioeconomics of Small-Scale Fisheries in Ranong Province, Thailand-BOBP/WP/97

WORKING PAPERS - BOBP/WP/97

The Effect of Artificial Reef Installation on the Biosocioeconomics of Small-Scale Fisheries in Ranong Province, Thailand


by
Hansa et al.


Executing Agency: FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS

Bay of Bengal Programme Madras, India, 1994

Table of Contents


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PREFACE

The Government of Thailand felt that installation of suitable Artificial Reefs (ARs) in the coastal waters around the country would contribute towards management of coastal fisheries resources, restrict operation of such efficient methods as trawling in the coastal waters, reduce conflicts among fishermen, and increase opportunities for small-scale fisherfolk to improve their income from fishing.

In 1989, ARs were installed in three locations in Ranong Province. The three ARs covered an area of 50.8 km2, about 9-11 km from the shoreline and at depths ranging from 12 to 17m.

The Bay of Bengal Programme (BOBP), within the framework of its project RAS/9J/006, Biosocioeconomics of Small-scale Fisheries, agreed to support the implementation of a subproject that would take up as a case study and assess the impact of the ARs by applying biosocioeconomic analytic methods. The investigations between 1991 and 1993 were done under BOBP’s ‘Small-scale Fisherfolk Communities’ project funded by DANIDA and SIDA and the reporting under ‘Bioeconomics of Small-scale Fisheries’ funded by UNDP.

This document is a compilation of working documents describing the separate but simultaneously carried out investigations into the suitability of the locations, the environmental conditions around the ARs, colonization of the ARs, enhancement of the resources, the influence of the ARs on the fisheries, and the impact of income changes, if any, on the socioeconomic conditions of the small-scale fisherfolk fishing at the ARs.


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TABLE OF CONTENTS


WORKING PAPERS - BOBP/WP/97pdf

PREFACE

INSTALLATION OF ARTIFICIAL REEFS pdf

WATER CONDITIONS AND NUTRIENT CONTENT AT THE ARTIFICIAL REEF SITESpdf

1. INTRODUCTION
2. FINDINGS
3. CONCLUSIONS

COLONIZATION OF FOULING COMMUNITIES AND ASSOCIATED FAUNA AT THE ARTIFICIAL REEFSpdf

4. INTRODUCTION
5. METHODOLOGY

5.1 Study site and reef structure
5.2 Sampling methods

6. FINDINGS

6.1 Physical description of the artificial reef
6.2 Fouling organisms and associated fauna

7. CONCLUSIONS
8. REFERENCES

FISH AGGREGATION AT THE ARTIFICIAL REEFSpdf

9. INTRODUCTION
10. STUDY AREA
11. METHODOLOGY
12. RESULTS

12.1 Description of fish aggregations at the artificial reef
12.2 Habitat comparison

13. DISCUSSION
14. CONCLUSIONS
15. REFERENCES

SMALL-SCALE FISHING GEAR USED IN THE ARTIFICIAL REEF AREASpdf

16. INTRODUCTION
17. METHODOLOGY

17.1 Fishing gear survey
17.2 Fishing gear trials
17.3 Fishing gear demonstration

18. RESULTS

18.1 Fishing gear survey
18.2 Fishing gear trials
18.3 Fishing gear demonstration

19. CONCLUSIONS
20. REFERENCES

BIOECONOMICS OF SMALL-SCALE FISHERIES IN THE ARTIFICIAL REEF AREAS pdf

21. INTRODUCTION
22. FISHING GEAR AND OPERATION

22.1 Trammelnet (TRN)
22.2 Whiting gilinet (WGN)
22.3 Squid trap (SQT)

23. FISHING EFFORT, COSTS AND EARNINGS
24. CONCLUSIONS

SOCIOECONOMICS OF SMALL-SCALE FISHERIES IN THE ARTIFICAL REEF AREASpdf

25. INTRODUCTION
26. FINDINGS

26.1 Changes in number of fishing households
26.2 Changes in fishing methods and fishing gear
26.3 Profile of fishing households
26.4 Income of fishing households and standard of living

27. PERCEPTIONS OF FISHERFOLK

RESULTS AND CONCLUSIONS OF THE BIOSOCIOECONOMIC ASSESSMENT OF THE IMPACT OF THE ARTIFICIAL REEFS (ARs) ON THE SMALL-SCALE FISHERIES pdf

28. RESULTS

28.1 Environmental conditions and animal communities
28.2 Impact of ARs on the fishing methods
28.3 Impact of ARs on the performance of small-scale fisheries
28.4 Impact of ARs on fisherfolk and their income
28.5 Awareness and perception of small-scale fisherfolk

29. CONCLUSIONS

PUBLICATIONS OF THE BAY OF BENGAL PROGRAMMEpdf