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Growth of the hatchery-produced juveniles of commercial sea cucumber Holothuria (Theelothuria) spinifera Theel

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Relation http://eprints.cmfri.org.in/5804/
 
Title Growth of the hatchery-produced juveniles of commercial sea cucumber Holothuria (Theelothuria) spinifera Theel
 
Creator Asha, P S
Muthiah, P
 
Subject Seacucumber
 
Description The present study was conducted to develop the
hatchery technology for seed production of the
widely exploited commercial sea cucumber Holothuria
spinifera Theel 1886, to facilitate an e¡ective stock
enhancement programme. Broodstock collected by
skin divers were used for spawning trials. The
embryonic and larval stages were similar to other
aspidochirotes. The larval survival rate was
43.5% on day 9, which decreased to 18.3% nearing
metamorphosis on day 13, the growth rate was
48 mmday_1and the settlement ratewas 3.5%. Algamacs
used to induce settlement also served as the
food source for the early settled juveniles, followed
by Sargassum spp. extract (o40 mm) for the ¢rst
month. Sargassum spp. powder along with ¢ne sand
(1:1)was givento juveniles420mm. Addition of Spirulina
spp. along with Sargassum spp. powder and ¢ne
sand (0.5:1:2) enhanced the growth rate of the juveniles.
In the hatchery, the juveniles attained an average
size of 1, 30 and 48 on 20, 80 and 120 days
respectively
 
Publisher Blackwell Publishing
 
Date 2007
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/5804/1/40.pdf
Asha, P S and Muthiah, P (2007) Growth of the hatchery-produced juveniles of commercial sea cucumber Holothuria (Theelothuria) spinifera Theel. Aquaculture Research, 38. pp. 1082-1087.