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

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Title Growth of the hatchery-produced juveniles of commercial sea cucumber Holothuria (Theelothuria) spinifera Theel
Not Available
 
Creator Asha,P S
Muthiah,P
 
Subject Growth
hatchery produced juveniles
sea cucumber
Holothuria
Theelothuria
spinifera Theel
survival rate
Algamacs
Sargassum spp.
Spirulina spp.
 
Description Not Available
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
Not Available
 
Date 2021-09-08T08:20:57Z
2021-09-08T08:20:57Z
2007
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/61842
 
Language English
 
Relation Not Available
 
Publisher Blackwell Publishing