Reproductive traits of deep-sea armoured shrimp, Glyphocrangon investigatoris from bay of Bengal, Indian ocean

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dc.contributor.authorBenjamin, D.
dc.contributor.authorHarikrishnan, M.
dc.contributor.authorRozario, J.
dc.contributor.authorJose, D.
dc.contributor.authorKurup, B.
dc.contributor.authorSreedhar, U.
dc.contributor.authorCubelio, S.
dc.date.accessioned2019-08-22T08:07:18Z
dc.date.available2019-08-22T08:07:18Z
dc.date.issued2019
dc.description.abstractDetails on size at first maturity, embryo number and size, brood chamber volume and reproductive output of deep-sea armoured shrimp, Glyphocrangon investigatoris caught off the south-east coast of India by using EXPO trawl from 633 m depth in FORV ‘Sagar Sampada’ are reported here. Eighty-four female shrimps ranging from 17.29–36.31 mm carapace length and 2.28–16.54 g weight formed 7.73% of total catch, 30% of which was constituted by embryo-bearing females. Regression of weight on carapace length revealed negatively allometric growth (r2 ¼ 0.85, P , 0.01). The size at first maturity was estimated as 19.96 mm. The embryo number ranged from 55 to 233 with a mean of 120.24 +34 embryos and showed a positive correlation to body size. Embryo diameter varied between 1.0 to 3.34 mm and more than 50% of embryos constituted the 2.0–2.5 mm size class. Brood chamber volume and percentage frequency of embryo stage development revealed a linear relationship with carapace length. Based on dry weight, mean reproductive output was estimated to be 0.16. The female armoured shrimps showed a high reproductive investment evidenced from few, large, yolky embryos, indicating their deep-sea adaptation.en_US
dc.identifier.citationJ. MAr. Biol. Assoc. UK 99(1):93-100en_US
dc.identifier.urihttp://drs.cift.res.in/handle/123456789/4188
dc.language.isoenen_US
dc.titleReproductive traits of deep-sea armoured shrimp, Glyphocrangon investigatoris from bay of Bengal, Indian oceanen_US
dc.typeArticleen_US
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