MANUAL FOR SPAWNING OF SEABASS, LATES CALCARIFER, IN CAPTIVITY |
FI:DP/MAL/79/018 Field Document 1 October 1984 |
A report prepared for the
Institutional Support for MAJUIKAN Aquaculture
Development Project
by
Tanan Tattanon and Banchong Tiensongrusmee
This report was prepared during the course of the project identified on the title page. The conclusions and recommendations given in the report are those considered appropriate at the time of its preparation. They may be modified in the light of further knowledge gained at subsequent stages of the project.
The designations employed and the presentation of the material in this document do not imply the expression of any opinion whatsoever on the part of the United Nations or the Food and Agriculture Organization of the United Nations concerning the legal or constitutional status of any country, territory or sea area, or concerning the delimitation of frontiers.
The Government of Malaysia, assisted by the United Nations Development Programme and the Food and Agriculture Organization of the United Nations have been engaged in the project Institutional Support for MAJUIKAN1 Aquaculture Development (MAL/79/018).
The development objectives of the project are to accelerate the commercial development of aquaculture in Malaysia and to contribute to the achievement of the Government's objective of increasing the share of aquaculture in total fish landings from the present 3% to 50%, over the next 20 years, by enabling LKIM to demonstrate the viability of aquaculture projects and to provide overall guidance and direction in the development of the industry.
The immediate aims are:
to elaborate LKIM's aquaculture programme for the Fourth Malaysia Plan.
to develop a methodology for the design of aquaculture projects within LKIM.
to draw up a programme for the effective implementation of LKIM's aquaculture projects.
to develop LKIM's aquaculture farm at Puchong, Selangor as a demonstration and training centre, in particular through the development of KLIM's capability in the management of commercial aquaculture projects.
The compilation of this manual is included in the project activities and was prepared by project staff Tanan Tattanon and Banchong Tiensongrusmee.
1 Fisheries Development Authority of Malaysia, renamed LKIM
The Food and Agriculture Organization is greatly indebted to all those who assisted the authors in the preparation of this manual, and particularly:
Messrs Prasit Aguru and Suchin Maneewongsa for their technical contributions during their service with FAO/UNDP/MAL/79/018 at the Sg. Merbok hatchery, Kuala Muda, Pantai Merdeka, Kedah.
Dr. William L. Chan, senior small-scale fisheries development adviser and Dr H.R. Rabanal, senior aquaculture development officer of FAO/UNDP South China Sea Fisheries Development and Coordinating Programme for their valuable suggestions.
Mr Tarlochan Singh of Aquaculture Division, LKIM, for his critical review of the manuscript.
FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
Rome, 1984
Hyperlinks to non-FAO Internet sites do not imply any official endorsement of or responsibility for the opinions, ideas, data or products presented at these locations, or guarantee the validity of the information provided. The sole purpose of links to non-FAO sites is to indicate further information available on related topics.
This electronic document has been scanned using optical character recognition (OCR) software. FAO declines all responsibility for any discrepancies that may exist between the present document and its original printed version.
5. INSPECTION OF STAGE OF MATURITY
7. PROCESS OF HORMONE INJECTION
11. TRANSPORT OF FERTILIZED EGGS
12. CARE OF FERTILIZED EGG AND HATCHING
16. CAUSES OF NURSERY MORTALITY
20. SPERM PRESERVATION TECHNIQUE
Appendix 1: METHOD OF COLLECTING SEABASS EGGS FROM SPAWNING TANKS
LIST OF TABLES
1. STAGES OF GONADAL DEVELOPMENT IN SEABASS, LATES CALCARIFER
2. SUITABLE RANGES OF WATER QUALITY OF THE BROODSTOCK TANK
3. EFFECTS OF SALINITY ON HATCHING RATE OF SEABASS EGGS
4. EMBRYONIC DEVELOPMENT OF SEABASS EGG AT 27°C
5. SURVIVAL RATE OF SEABASS LARVAE AT DIFFERENT SALINITIES
6. STOCKING DENSITY AND EXPECTED SURVIVAL RATE OF SEABASS FRY AT DIFFERENT AGE INTERVALS
7. TYPES AND RELATIVE AMOUNTS OF FOOD GIVEN AT DIFFERENT STAGES OF THE SEABASS LARVAE
8. PORE SIZE OF GRADER AND RETAINED SIZE OF FISH
9. NORMAL GROWTH OF SEABASS FRY IN 30 DAYS
10. DISEASE TREATMENT OF SEABASS FRY IN NURSERY TANK
11. NUTRIENTS FOR 1–1 STOCK CULTURE OF TETRASELMIS
12. NUTRIENTS FOR 3–1 CULTURE OF TETRASELMIS
13. NUTRIENTS FOR 200–1 AND 1-t CULTURES OF TETRASELMIS
14. NUTRIENTS FOR CHLORELLA CULTURE
15. NUTRIENTS FOR MARINE YEAST CULTURE
16. SURVIVAL RATE OF SEABASS FRY PACKED IN 40 × 60 cm PLASTIC BAGS
LIST OF FIGURES
2. Embryonic development of seabass
5. Water management and grading period for seabass rearing in hatchery
6. Rotifer culture showing algae peak, rotifer innoculation and rotifer peak