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Controlled Breeding and Larval Rearing Techniques of Marine Ornamental Fishes

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Title Controlled Breeding and Larval Rearing Techniques of Marine Ornamental Fishes
Not Available
 
Creator Santhosi,I
Ignatius,Boby
Gopakumar,G
Ramamoorthy,N
 
Subject Controlled Breeding
Larval Rearing Techniques
Marine Ornamental Fishes
 
Description Not Available
International trade of marine ornamental fishes has been expanding rapidly in recent
years, and the fact that nearly 98% of the species traded are collected from reef habitats is of
vital concern for the conservation of the fragile coral reef ecosystem. Hence, it is widely accepted
that the ultimate answer to a long-term sustainable trade of marine ornamental fishes is only
through the development of hatchery production technologies. The techniques for broodstock
development, breeding and seed production of three species of damsel fishes viz. the three spot
damsel, Dascyllus trimaculatus, the humbug damsel, Dascyllus aruanus and the blue damsel,
Pomacentrus caeruleus, were developed and standardised, which can be scaled up for commercial
level production. Broodstock development was done in one-tonne Fiber Reinforced Plastic (FRP)
tanks with biological filter and by feeding with natural feeds. The size range of broodstock fish
of D. trimaculatus, D. aruanus and P. caeruleus were 9-10, 7-8 and 7-9 cm, respectively. The
number of eggs per spawning ranged from 5000 to 15000. The interval between two successive
spawnings ranged from 3 to 14 days. The eggs were attached either on the sides of the broodstock
tank or on the substratum provided in the broodstock tank. Parental care by the male was noted.
Hatching occurred on the evening of the fourth day of incubation. The larvae were altricial type
with no mouth opening at the time of hatching for D. trimaculatus and D. aruanus. The larvae of
P. caeruleus were with mouth opening at the time of hatching. The length range of newly hatched
larvae was 1.5-2.5 mm and the range of mouth opening was 150-200 μ.
Not Available
 
Date 2021-09-15T09:26:00Z
2021-09-15T09:26:00Z
2009
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/62401
 
Language English
 
Relation Not Available
 
Publisher Asian Fisheries Soceity; Malaysia