Fish Stock Assessment Manual

FAO FISHERIES TECHNICAL PAPER 393


by
Emygdio L. Cadima
Consultant FAO
Fisheries Department

DANIDA

FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
Rome, 2003
 
Table of Contents

 


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ISBN 92-5-104505-4

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© FAO 2003

Table of Contents

PREPARATION OF THIS DOCUMENT

ABSTRACT

PREFACE

GLOSSARY OF TECHNICAL TERMS USED IN THE MANUAL

SYMBOLS

SUBSCRIPTS

BIBLIOGRAPHY

CHAPTER 1 - INTRODUCTION

1.1 THE IMPORTANCE OF FISHERIES
1.2 FISHERIES RESOURCES MANAGEMENT
1.3 FISHERIES RESOURCES RESEARCH
1.4 FISH STOCK ASSESSMENT

CHAPTER 2 - MODELS AND RATES

2.1 MODELS
2.2 RATES
2.3 SIMPLE LINEAR MODEL
2.4 EXPONENTIAL MODEL

CHAPTER 3 - COHORT

3.1 COHORT - INTRODUCTION
3.2 EVOLUTION OF THE NUMBER OF A COHORT, IN AN INTERVAL OF TIME
3.3 CATCH, IN NUMBER, OVER AN INTERVAL OF TIME
3.4 INDIVIDUAL GROWTH
3.5 BIOMASS AND YIELD, DURING THE INTERVAL Ti
3.6 COHORT DURING THE EXPLOITABLE LIFE
3.7 SIMPLIFICATION OF BEVERTON AND HOLT

CHAPTER 4 - STOCK

4.1 STOCK OVER A ONE YEAR PERIOD
4.2 FISHING PATTERN OVER A ONE YEAR PERIOD
4.3 SHORT-TERM PROJECTIONS OF THE STOCK
4.4 LONG-TERM PROJECTIONS OF THE STOCK
4.5 STOCK-RECRUITMENT (S-R) RELATION
4.6 RELATION BETWEEN R AND (R-S RELATION)

CHAPTER 5 - BIOLOGICAL REFERENCE POINTS AND REGULATION MEASURES

5.1 BIOLOGICAL REFERENCE POINTS FOR THE MANAGEMENT AND CONSERVATION OF FISHERIES RESOURCES
5.2 BIOLOGICAL TARGET REFERENCE POINTS (Fmax, F0.1 Fmed AND FMSY)
5.3 BIOLOGICAL LIMIT REFERENCE POINTS (Bloss, MBAL, Fcrash AND Floss)
5.4 PRECAUTIONARY REFERENCE POINTS - Fpa, Bpa
5.5 FISHERIES REGULATION MEASURES

CHAPTER 6 - PRODUCTION MODELS

6.1 BASIC ASSUMPTION ABOUT THE EVOLUTION OF THE BIOMASS OF A NON EXPLOITED STOCK
6.2 EXPLOITED STOCK
6.3 VARIATION OF THE BIOMASS IN THE INTERVAL T i
6.4 LONG-TERM PROJECTIONS (LT) (EQUILIBRIUM CONDITIONS)
6.5 BIOMASS AND FISHING LEVEL INDICES
6.6 BIOLOGICAL TARGET REFERENCE POINTS (TRP)
6.7 TYPES OF PRODUCTION MODELS
6.8 SHORT-TERM PROJECTIONS

CHAPTER 7 - ESTIMATION OF PARAMETERS

7.1 SIMPLE LINEAR REGRESSION - LEAST SQUARES METHOD
7.2 MULTIPLE LINEAR REGRESSION - LEAST SQUARES METHOD
7.3 NON-LINEAR MODEL - METHOD OF GAUSS-NEWTON - LEAST SQUARES METHOD
7.4 ESTIMATION OF GROWTH PARAMETERS
7.5 ESTIMATION OF M - NATURAL MORTALITY COEFFICIENT
7.6 ESTIMATION OF Z - TOTAL MORTALITY COEFFICIENT
7.7 ESTIMATION OF THE PARAMETERS OF THE STOCK-RECRUITMENT (S-R) RELATION
7.8 ESTIMATION OF THE MATRIX [F] AND OF THE MATRIX [N] -COHORT ANALYSIS - AC AND LCA

CHAPTER 8 - EXERCISES

8.1 MATHEMATICAL REVISION
8.2 RATES
8.3 SIMPLE LINEAR MODEL
8.4 EXPONENTIAL MODEL
8.5 COHORT - EVOLUTION IN NUMBER
8.6 COHORT - CATCH IN NUMBER
8.7 INDIVIDUAL GROWTH IN LENGTH AND WEIGHT
 8.8 COHORT DURING ALL LIFE - BIOMASS AND CATCH IN WEIGHT
8.9 COHORT DURING ITS LIFE - SIMPLIFICATION OF BEVERTON AND HOLT MODEL
8.10 STOCK - SHORT TERM PROJECTION
8.11 STOCK - LONG TERM PROJECTION
8.12 STOCK - RECRUITMENT RELATION
8.13 Fmax
8.14 F0.1
8.15 Fmed AND FMSY
8.16 MBAL AND Bloss
 8.17 Floss AND Fcrash
 8.18 PRODUCTION MODELS (EQUILIBRIUM) - SCHAEFER
8.19 PRODUCTION MODELS (EQUILIBRIUM) - ABUNDANCE AND FISHING LEVEL INDICES
8.20 PRODUCTION MODELS - SHORT TERM PROJECTION
8.21 SIMPLE LINEAR REGRESSION - ESTIMATION OF THE PARAMETERS OF THE W-L RELATION AND GROWTH PARAMETERS (FORD-WALFORD, GULLAND AND HOLT AND STAMATOPOULOS AND CADDY)
8.22 MULTIPLE LINEAR MODEL - REVISION OF MATRICES - ESTIMATION OF THE PARAMETERS OF FOX INTEGRATED MODEL (IFOX)
8.23 NON LINEAR REGRESSION - ESTIMATION OF THE GROWTH PARAMETERS AND OF THE S-R RELATION (GAUSS-NEWTON METHOD)
8.24 ESTIMATION OF M
8.25 ESTIMATION OF Z
8.26 AGE COHORT ANALYSIS (CA)
8.27 LENGTH COHORT ANALYSIS (LCA)
8.28 EXAMINATION - WRITTEN TEST (LISBON, DEC. 1997)

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