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Hatching, Growth and Feed Preference of Hatchlings of Volagalea cochlidium (Linnaeus, 1758)

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Relation http://eprints.cmfri.org.in/10484/
http://ija.biopublisher.ca
 
Title Hatching, Growth and Feed Preference of Hatchlings of Volagalea cochlidium
(Linnaeus, 1758)
 
Creator Laxmilatha, P
Pattnaik, Phalguni
Rao, T Nageswara
Rao, M Prasada
Padmajarani, S
 
Subject Eggs and Larvae
Gastropods
 
Description The hatching, growth and feed preference of hatchlings of the whelk Volagalea cochlidium (Linnaeus, 1758)
(synonymous with Hemifusus pugilinus) under laboratory conditions is described. The egg capsules were semi-transparent; light
yellow in color and trapezoidal in shape. Each capsule had 75-80 embryos. The length of the capsules along with the holdfast ranged
from 14.98 to 23.26 mm. The hatchlings crawled out of the capsules after 30 days of incubation at 28-30℃. The mean shell length of
the newly hatched out hatchling was 1.364 ± 0.009 and mean width 0.096 ± 0.011 mm. The hatchlings were fed five different diets
and reared for 62 days to compare the effects on growth and survival. The most preferred feed was mussel meat, followed by clam
feed, shrimp meat. Higher growth rates were recorded for those fed with mussel meat and highest cumulative mortality occurred in
those fed with oyster meat. The whelk is in high demand for its shell and operculum and is exploited indiscriminately. This study
indicates its potential for aquaculture and replenishment of wild stock through stock enhancement programs using hatchery produced
juveniles of the whelk
 
Date 2015
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/10484/1/Indian_Journal_of_Aquaculture_Laxmilatha_Volagalea_cochlidium_2015.pdf
Laxmilatha, P and Pattnaik, Phalguni and Rao, T Nageswara and Rao, M Prasada and Padmajarani, S (2015) Hatching, Growth and Feed Preference of Hatchlings of Volagalea cochlidium (Linnaeus, 1758). International Journal of Aquaculture, 5 (19). pp. 1-8.