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

JUNE, 1987

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TABLE OF CONTENTS

1. INTRODUCTION

2. TEMPERATURE

2.1. Temperature changes in small water bodies

2.2. Fish pond temperature

2.3. Temperature relations of large bodies of water

2.4. Temperature relations of culturable organisms

2.5. Temperature requirements of shrimps/prawns

2.6. Controlling temperature in fish ponds

2.7. Water temperature control in shrimp ponds

3. WATER CONDITIONS AND DEPTH

3.1. Pressure

3.2. Density

4. LIGHT TURBIDITY AND COLOUR

4.1. Light penetration in water/fish ponds

4.2. Turbidity

4.3. Colour

5. WATER MOVEMENTS

5.1. Waves

5.2. Currents

5.3. Currents prevailing in the immediate area of the fish farm (brackishwater)

5.4. Tide

6. REFERANCES