Guidelines for the Routine Collection of Capture Fishery Data













Table of Contents


Prepared at the
FAO/DANIDA Expert Consultation
Bangkok, Thailand, 18-30 May 1998

FAO FISHERIES TECHNICAL PAPER
382

DANIDA

Food and Agriculture Organization of the United Nations

Rome, 1999

ISSN 0429-9345

The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.

M-40
ISBN 92-5-104304-3

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwise, without the prior permission of the copyright owner. Applications for such permission, with a statement of the purpose and extent of the reproduction, should be addressed to the Director, Information Division, Food and Agriculture Organization of the United Nations, Viale delle Terme di Caracalla, 00100 Rome, Italy.

© FAO 1999


Table of Contents


PREPARATION OF THIS DOCUMENT

ABSTRACT

USING THE GUIDELINES

1. INTRODUCTION

1.1 THE OBJECTIVES OF THE GUIDELINES
1.2 SCOPE
1.3 RATIONALE

2. THE USES OF INFORMATION

2.1 POLICY AND MANAGEMENT OBJECTIVES

2.1.1 Fisheries contribution to food supply
2.1.2 Fisheries contribution to the economy
2.1.3 Fisheries impact on the ecosystem

2.2 THE PRECAUTIONARY APPROACH

3. OBJECTIVES OF DATA COLLECTION

3.1 DATA NEEDS FOR MANAGEMENT ISSUES
3.2 MANAGEMENT-RELATED INDICATORS

3.2.1 Status of resources
3.2.2 Yield
3.2.3 Fishing controls
3.2.4 Economic efficiency
3.2.5 Social performance

3.3 REGIONAL NEEDS

4. INDICATORS, DATA TYPES AND VARIABLES

4.1 INDICATORS AND VARIABLES
4.2 SPECIFICATIONS FOR SELECTION OF VARIABLES AND DATA

4.2.1 Evaluation of the operating characteristics of a fishery
4.2.2 Data type priority
4.2.3 Frequency of data collection
4.2.4 Data quantity and quality
4.2.5 Standardisation

4.3 INDICATORS AND ASSOCIATED DATA TYPES AND VARIABLES

4.3.1 Fishing and operational indicators
4.3.2 Biological indicators
4.3.3 Economic indicators
4.3.4 Socio-cultural indicators

5. DATA COLLECTION STRATEGY

5.1 INTRODUCTION
5.2 INFORMATION REQUIREMENTS FOR SYSTEM DESIGN
5.3 CO-MANAGEMENT AND SYSTEM DESIGN
5.4 COMPLETE ENUMERATION AND SAMPLING

5.4.1 Definitions
5.4.2 Deciding between complete enumeration and sampling

5.5 COMPLETE ENUMERATION APPROACHES
5.6 SAMPLE-BASED APPROACHES

5.6.1 Stratification in data collection
5.6.2 The effect of stratification

5.7 OPERATIONAL CONSIDERATIONS

6. DATA COLLECTION METHODS

6.1 VARIABLES, SOURCES AND METHODS

6.1.1 Data sources
6.1.2 Linkage among variables, sources and methods

6.2 RECORDING A VARIABLE
6.3 DATA COLLECTION METHODS

6.3.1 Registration
6.3.2 Questionnaires
6.3.3 Interviews
6.3.4 Direct observations
6.3.5 Reporting

7. DATA MANAGEMENT

7.1 NEED FOR DATA MANAGEMENT
7.2 DATABASE DESIGN

7.2.1 Methodology
7.2.2 Human-computer interface
7.2.3 Computerised documentation
7.2.4 Data entry
7.2.5 Data processing
7.2.6 Data reporting
7.2.7 Geographic Information Systems (GIS)

7.3 DATA MANAGEMENT OPERATIONS AND MAINTENANCE

7.3.1 Commitment
7.3.2 Archives
7.3.3 Design re-evaluation

7.4 DATA ACCESS AND DISSEMINATION

7.4.1 Data ownership and control
7.4.2 Communication networks
7.4.3 Computerised publication

8. PLANNING AND IMPLEMENTATION

8.1 THE NEED FOR PLANNING
8.2 PLANNING PHASE (PRE-IMPLEMENTATION)

8.2.1 Legal framework
8.2.2 Institutional framework
8.2.3 Working practices
8.2.4 Budgets

8.3 IMPLEMENTATION PHASE

8.3.1 Incentives
8.3.2 Training
8.3.3 Exchange of experiences with other countries
8.3.4 Technical committees
8.3.5 Data verification
8.3.6 Feedback
8.3.7 System appraisal

9. REFERENCES AND FURTHER READING

ANNEX 1. DATA REQUIREMENTS SPECIFIED IN THE UNITED NATIONS FISH STOCKS AGREEMENT

ANNEX 2. FISHING EFFORT MEASURES BY GEAR CATEGORIES

ANNEX 3. DATA SHEET DESIGN, USE AND PROCESSING

ANNEX 4. EXAMPLE OF USE OF KEY TERMS

ANNEX 5. GLOSSARY

BACK COVER