Unique occurrence of large-sized diamondback squid Thysanoteuthis rhombus (Troschel, 1857) in the Gulf of Mannar

Rajkumar, M and Midhun, M and Thirumalaiselvan, S and Rajkumar, R and Saravanan, Raju (2022) Unique occurrence of large-sized diamondback squid Thysanoteuthis rhombus (Troschel, 1857) in the Gulf of Mannar. Indian Journal of Geo-Marine Sciences, 51 (7). pp. 650-653. ISSN 0975-1033

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Abstract

The presence of the large-sized diamondback squid Thysanoteuthis rhombus (Troschel, 1857) in the Gulf of Mannar biosphere was confirmed after a two-decade absence, based on a single specimen observed during landings at the Pamban lighthouse Fish Landing Centre. A squid measuring 633 mm in mantle length and weighing 15.1 kg was caught in the hook and line at a depth of 20 m. The discovery of this species in the Gulf of Mannar unequivocally confirms that the population is still present in the ecosystem

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