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Abstract
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Article Information:
Embryonic Development of Commercially Imporatant Swimming Crab Portunus pelagicus (Linnaeus)
P. Soundarapandian and T. Tamizhazhagan
Corresponding Author: P. Soundarapandian
Submitted: 2009 Month, 00
Accepted: 2009 August, 07
Published: |
Abstract:
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The embryonic development of commercially important crab, P. pelagicus was studied. The
fecundity rate is ranging from 9, 00,000 to 10, 00,000. The incubation period reported to be 6-7 days. Five
embryonic (Blastula, G astrula, Eye placode, Pigment and H eart beat) stages w ere recognized and each stage
is described in detail. The size of the developing egg was increased at every stage. The colour of the egg is
initially yellow in colour and it was gradually transformed into orange, brown and black colours. The hatching
success of the freshly hatched I zoea was 75%. The salinity test shows that 35 ppt is an optimum salinity to rear
the larval forms of P. pelagicus.
Key words: Portuns pelagicus, blastula, gastrula, eye placode, heart beat, ,
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Abstract
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Cite this Reference:
P. Soundarapandian and T. Tamizhazhagan, . Embryonic Development of Commercially Imporatant Swimming Crab Portunus pelagicus (Linnaeus). Current Research Journal of Biological Sciences, (3): Page No: 106-108.
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ISSN (Online): 2041-0778
ISSN (Print): 2041-076X |
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