Spawing induction and larval rearing of the giant clam, Tridacna maxima in Chuuk Lagoon, Micronesia

Title
Spawing induction and larval rearing of the giant clam, Tridacna maxima in Chuuk Lagoon, Micronesia
Author(s)
김한준; 최희정; 최영웅
KIOST Author(s)
Choi, Hee Jung(최희정)
Publication Year
2019-11-08
Abstract
The giant clam (Tridacna spp.) is a tropical bivalve in high demand for bio industry materials using protein sources, aquarium biomaterials and decorative sources from shells. Due to the recent increase in demand, overfishing is taking place in major habitats around the world, and it has been designated as an vulnerable species. Therefore, production by aquaculture is required for stable resource management and to respond to market demand of bio materials.
The purpose of this study was to establish the production system of indoor environment for spawning and early larval rearing in Tridacna maxima. It carried out the spawning induction by injecting macerated gonad as a dropper to inhalent siphon in a rectangular FRP tank (approximately 1 ton scale). We could be gained about 307×104±16.54 egg individuals from 12 adult bivalves. In general, it have been conducted spawning induction in tropical bivalve by the methods as the sun dry, raised watertemperature etc. The method of stimulation using by gonad solution is considered effective for spawning induction in giant clam. The methods of spawning induction should be selected an efficient method according to the conditions. It takethe 10~14 days reached at the stage of metamorphosis from stage of fertilized eggs. during the larval rearing, it was supplied the Isocrysis aff. galbana, Chaetoceros simplex, and Tetraselmis suecica which mixed at a ratio of 3: 3 4. At a
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/21078
Bibliographic Citation
세계수산 EXPO, pp.254, 2019
Publisher
Korean Federation of Fisheries Science and Technology Societies
Type
Conference
Language
English
Publisher
Korean Federation of Fisheries Science and Technology Societies
Related Researcher
Research Interests

Fish ecology,Fish stock enhancement,어류생태,어류자원증식

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