Biosocioeconomics of Fishing for Shrimp in the Langkat District - BOBP/WP/99

WORKING PAPERS - BOBP/WP/99

Biosocioeconomics of Fishing for Shrimp in the Langkat District


by
Bambang Wahyudi, Gomal H. Tampubolon & Wignyo Handoko
Directorate General of Fisheries, Jakarta, Indonesia
and
Provincial Fishery Service of North Sumatera, Medan, Indonesia


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 North Sumatera Province of Sumatera, Indonesia, has access to marine resources on the east coast (Malacca Straits) as well as the west coast (Indian Ocean). A project to make a biosocioeconomic assessment of the methods being used to catch shrimp was undertaken by the Provincial Fishery Service (PFS) of North Sumatera with assistance from the Bay of Bengal Programme (BOBP).

Amongst other objectives, the project intended to examine management options to improve yield and revenue from shrimp resources, bearing in mind the effects of such measures on the community. The east coast is rich in shrimp resources. Langkat District, bordering the Malacca Strait, where small-scale fisheries, and particularly the production of shrimp, is an important feature, was selected as the area to be studied.

Based on the distribution of fishing villages spread out along the coast of Langkat District and the various fishing gear operated by fisherfolk to exploit the different shrimp resources in the area, a procedure of stratified random sampling was adopted for data-collection in five strata and at twelve sampling locations. Data were collected from April 1992 to March 1993 for five types of shrimp fishing gear and this was used to estimate biological and economic parameters of the shrimp fishery. A socioeconomic survey of 112 villages was also conducted. The investigations were done under the Bay of Bengal Programme’s (BOBP’s) ‘Small-scale Fisherfolk Communities’ project funded by DANIDA and SIDA and the reporting under ‘Bioeconomics of Small-scale Fisheries’ funded by UNDP.


TABLE OF CONTENTS


WORKING PAPERS - BOBP/WP/99pdf

1. INTRODUCTION

1.1 Fisheries in North Sumatera Province

2. METHODOLOGY

2.1 Bioeconomics
2.2 Socioeconomics

3. BIOECONOMIC FINDINGS

3.1 Species composition
3.2 Catch rates
3.3 Production and revenue
3.4 Exploitation of penaeid shrimp
3.5 Growth parameters of selected species of shrimp
3.6 Recruitment pattern and spawning seasons
3.7 Cohort analysis
3.8 Thompson and Bell prediction analysis
3.9 Costs and earnings

4. SOCIOECONOMIC FINDINGS

4.1 Village profile
4.2 Household income and expenditure

5. CONCLUSIONS AND RECOMMENDATIONS
6. REFERENCES

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