Further Fishing Trials With Bottom-Set Longlines In Sri Lanka

WORKING PAPERS - BOBP/WP/16

Further Fishing Trials With Bottom-Set Longlines In Sri Lanka


Executing Agency: FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS

Funding Agency: SWEDISH INTERNATIONAL DEVELOPMENT AUTHORITY

Development of Small-Scale Fisheries in the Bay of Bengal Madras, India, July 1982

Table of Contents


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PREFACE

The trials of bottom-set longlining off Sri Lanka are an activity of the Bay of Bengal Programme (BOBP) for the Development of Small-Scale Fisheries, GCP/RAS/040/SWE. The work was carried out by the Research Division of the Ministry of Fisheries with technical guidance and assistance from the BOBP, which included the services of a fishing technologist (Mr. G. Pajot), a biologist consultant (Dr. G. H. P. De Bruin) and the Project Officer (Mr. B. W. Perera). The Ministry of Fisheries provided the services of a research officer, Mr. K. T. Weerasooriya, and other research staff. Messrs Samalanka provided a consultant master fisherman (Mr. Sandvik) and fishing gear and equipment for monofilament longline trials. Several boat owners cooperated by providing boats and crews.


TABLE OF CONTENTS


WORKING PAPERS - BOBP/WP/16pdf

PREFACE

1. INTRODUCTION

2. OBJECTIVES

3. ORGANIZATION

4. EQUIPMENT AND SUPPLIES

5. TRIALS FROM KALKUDAH

6. TRIALS FROM SILVATHURAL

7. TRIALS FROM NEGOMBO

8. MONOFILAMENT TRIALS FROM COLOMBO

9. COMMENTS

TABLES

1. RECORD OF BOTTOM LONGLINE FISHING TRIALS FROM KALKUDAH. AUGUST 1980 — JULY 1981
2. CATCH COMPOSITION OF BOTTOM LONGLINE TRIALS FROM KALKUDAH. AUGUST 1980 — JULY 1981
3. RECORD OF WIDE GAP HOOK TRIALS FROM KALKUDAH. JUNE — JULY 1981
4. RECORD OF BOTTOM LONGLINE FISHING TRIALS FROM SILVATHURAI. NOVEMBER — DECEMBER 1980
5. RECORD OF BOTTOM LONGLINE FISHING TRIALS FROM NEGOMBO. DECEMBER 1980 — MAY 1981
6. CATCH COMPOSITION OF BOTTOM LONGLINE TRIALS FROM NEGOMBO. DECEMBER 1980 — MAY 1981
7. COMPARISON OF CATCH RATES OBTAINED BY PROJECT BOAT AND OTHER PRIVATE BOATS IN BOTTOM LONGLINE FISHING FROM NEGOMBO. MARCH — APRIL 1981
8. CATCH RECORDS OF TRIALS WITH MONOFILAMENT VERSUS CONVENTIONAL BOTTOM LONGLINE: COLOMBO, APRIL — MAY 1981
9. CATCH COMPOSITION OF TRIALS WITH MONOFILAMENT VERSUS CONVENTIONAL BOTTOM LONGLINE. COLOMBO, APRIL — MAY 1981

APPENDICES

1. FISHING BOATS USED IN THE TRIALS
2. DESIGN AND SPECIFICATION OF CONVENTIONAL BOTTOM LONGLINES USED IN THE TRIALS
3. DESIGN AND SPECIFICATION OF BOTTOM LONGLINES USED IN MONOFILAMENT TRAILS
4. DESIGN AND SPECIFICATION OF BOTTOM LONGLINES USED IN WIDE GAP HOOK TRIALS
5. GEOGRAPHIC LOCATION OF BASES AND FISHING GROUNDS: EAST COAST OF SRI LANKA
6. GEOGRAPHIC LOCATION OF BASES AND FISHING GROUNDS: NORTH WEST COAST OF SRI LANKA
7. GEOGRAPHIC LOCATION OF BASES AND FISHING GROUNDS: WEST COAST OF SRI LANKA
8. GEOGRAPHIC LOCATION OF BASES AND FISHING GROUNDS: WEST COAST OF SRI LANKA (MONOFILAMENT TRIALS)

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