M. N. KUTTY
African Regional Aquaculture Centre
Port Harcourt, Nigeria

Lectures presented at ARAC for the Senior Aquaculturists course

UNITED NATIONS DEVELOPMENT PROGRAMME
FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
NIGERIAN INSTITUTE FOR OCEANOGRAPHY AND MARINE RESEARCH
PROJECT RAF/82/009

APRIL, 1987

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TABLE OF CONTENTS

1. INTRODUCTION

2. ECOSYSTEM

3. HABITAT AND ECOLOGICAL NICHE

4. FOOD CYCLE IN WATER BODIES

5. CONCEPT OF PRODUCTIVITY

6. PRIMARY PRODUCTION IN FISH PONDS

7. RELATIONSHIP OF PRIMARY PRODUCTION AND FISH PRODUCTION

8. MEASUREMENT OF PRODUCTIVITY

8.1. Oxygen Measurement Method

8.2. Diel Method

8.3. C₁₄ Method

9. REFERENCES