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

Sajikumar, 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.

Text Scientia Marina_2022_Sajikumar K K.pdf Download (1MB)

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 Division Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Molluscan Fisheries Division CMFRI-Kochi > Marine Capture > Molluscan Fisheries Division Subject Area > CMFRI-Kochi > Marine Capture > Molluscan Fisheries Division
Depositing User:	Arun Surendran
Date Deposited:	25 Aug 2022 04:37
Last Modified:	17 Feb 2023 09:06
URI:	http://eprints.cmfri.org.in/id/eprint/16170

Actions (login required)

View Item