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

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....

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Bibliographic Details
Published in:Scientia Marina
Main Authors: Kurichithara Kunjumani Sajikumar, Geetha Sasikumar, Vellathi Venkatesan, Konnoth Jestin Joy, Kolliyil Sunilkumar Mohamed
Format: Article in Journal/Newspaper
Language:English
Published: Consejo Superior de Investigaciones Científicas 2022
Subjects:
Abralia andamanica
statolith
age
growth rate
lifespan
hatching
Aquaculture. Fisheries. Angling
SH1-691
DML
Online Access:https://doi.org/10.3989/scimar.05251.036
https://doaj.org/article/76abbd46b5994554afd5d63f32a7b3d6
Description
Summary: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).

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