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Effect of stocking density on the hatching rate, larval and early juvenile rearing of edible sea cucumber Holothuria scabra (Jaeger, 1883)

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Title Effect of stocking density on the hatching rate, larval and early juvenile rearing of edible sea cucumber Holothuria scabra (Jaeger, 1883)
 
Creator Asha, P.S.
Diwakar, K.
 
Subject Hatching rate
Holothuria scabra
larval rearing
Larval rearing
Juvenile rearing
 
Description 191-195
Fertilized eggs, auricularia larvae and three
month old juveniles of H. scabra,
obtained from induced spawning were used for various experiments to assess the
effect of stocking density on hatching rate, larval and early juvenile rearing
of commercially important sea cucumber H.
scabra. Experiments were conducted for two days on hatching rate of
fertilized eggs, for ten days on larval survival, growth and development and
for 120 days on juvenile’s growth rate. An inverse relationship was observed
between stocking density and hatching rate. Hatching rate varied between 15.1%
at 8 eggs mL-1 to a maximum of 66.4% at 0.5 eggs mL-1.
High survival, growth rate and fastest development of auricularia at stocking
density 1 larvae mL-1 indicated the optimum larval rearing
conditions. Maximum growth rate in length and weight, suggested the stocking
density 4.2 Nos. m-2 is good for juvenile rearing. One way ANOVA on
the differences in the hatching rate, larval growth and survival rate, juvenile
growth rate both in length as well as in weight at different stocking densities
indicated high level of significances (P
 
Date 2013-04-13T12:05:35Z
2013-04-13T12:05:35Z
2013-04
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/16952
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.42(2) [April 2013]