Use of Copepods as Live Feed for Larviculture of Damselfishes

Gopakumar, G and Santhosh, I (2009) Use of Copepods as Live Feed for Larviculture of Damselfishes. Asian Fisheries Science, 22 (1). pp. 1-6.

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Abstract

It is well established that small-sized live feed with sufficient DHA, EPA and ARA as starter feed is the key factor for the success in larviculture of marine fishes with altricial larvae having limited yolk, which are in an undeveloped state at hatching. Copepods form a major component of the natural diet of many fish larvae and the wide range of body sizes of copepods both within and between species is extremely useful for employing the early stage nauplii and copepodites as starter feed for very small larvae with small mouth opening. Improved survival, growth and normal pigmentation have been documented in the larviculture of several marine finfishes reared with the early stage nauplii and copepodites. This is generally attributed to the levels of DHA, EPA and or arachidomic acid (ARA) in the diet and particularly to the DHA: EPA ratio in the diet. Two species of copepods viz. Euterpina acutifrons, a harpacticoid copepod and Pseudodiaptomus serricaudatus, a calanoid copepod were selected and cultured. They were employed as starter feed for the larviculture of three species of damsel fishes viz. the three spot damselfish, Dascyllus trimaculatus, the humbug damselfish, Dascyllus aruanus and the blue damselfish, Pomacentrus caeruleus. It was found that co-culturing of copepods in greenwater in the larviculture tank is the most effective method for initiating the exogenous feeding of the species studied.

Item Type:Article
Official URL/DOI:http://www.asianfisheriessoceity.org
Uncontrolled Keywords:Copepods; Live Feed; Larviculture; Damselfishes
Subjects:Crustacean Fisheries
Copepods
Aquaculture > Live Feed Culture
Divisions:CMFRI-Cochin > Mariculture
ID Code:5728
Deposited By:Arun Surendran
Deposited On:23 Oct 2010 18:25
Last Modified:23 Oct 2010 18:25

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