Age, growth and maturation in the mesopelagic squid Abralia andamanica (Cephalopoda: Enoploteuthidae) from the Arabian Sea

Saji Kumar, K K and Sasikumar, Geetha and Venkatesan, V and Jestin Joy, K M and Mohamed, K S (2022) Age, growth and maturation in the mesopelagic squid Abralia andamanica (Cephalopoda: Enoploteuthidae) from the Arabian Sea. Scientia Marina, 86 (3). pp. 1-7.

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    Abstract

    Age, growth and maturation in the mesopelagic squid Abralia andamanica (Cephalopoda: Enoploteuthidae) were studied in 140 individuals of 15-60 mm dorsal mantle length (DML) captured from open waters in the southeast Arabian Sea. The length-weight relationship was estimated as W=0.278 DML1.884 (R2 =0.93). Age estimates based on statolith increment counts ranged from 79 to 177 days, suggesting a short (<200-day) lifespan. Growth in length was best described by a linear function for males and a power function for females. Growth in weight was best described by a power function for both sexes. Growth rates of the DML ranged from 0.16 to 0.30 (mean=0.24) mm/day in males and from 0.23 to 0.43 (mean=0.33) mm/ day in females. The hatching season extended from June to August (monsoon season).

    Item Type: Article
    Uncontrolled Keywords: Abralia andamanica; statolith; age; growth rate; lifespan; hatching; tropical
    Subjects: Fish and Fisheries > Fish biology > age and growth
    Molluscan Fisheries > Cephalopods
    Divisions: CMFRI-Kochi > Marine Capture > Molluscan Fisheries
    Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Molluscan Fisheries
    CMFRI-Kochi > Marine Capture > Molluscan Fisheries
    Subject Area > CMFRI-Kochi > Marine Capture > Molluscan Fisheries
    Depositing User: Arun Surendran
    Date Deposited: 25 Aug 2022 04:37
    Last Modified: 25 Aug 2022 05:00
    URI: http://eprints.cmfri.org.in/id/eprint/16170

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