Indian Journal of Geo-Marine Sciences

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


Affiliations
1 ICAR-Central Marine Fisheries Research Institute, Kochi – 682 018, India., India
 

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 15.1kg 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.

Keywords

Diamondback Squid, Gulf of Mannar, Hook and Line, Mantle Length.
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  • A unique occurrence of large-sized diamondback squid Thysanoteuthis rhombus (Troschel, 1857) in the Gulf of Mannar

Abstract Views: 148  |  PDF Views: 97

Authors

M Rajkumar
ICAR-Central Marine Fisheries Research Institute, Kochi – 682 018, India., India
M Midun
ICAR-Central Marine Fisheries Research Institute, Kochi – 682 018, India., India
S Thirumalaiselvan
ICAR-Central Marine Fisheries Research Institute, Kochi – 682 018, India., India
R Rajkumar
ICAR-Central Marine Fisheries Research Institute, Kochi – 682 018, India., India
R Saravanan
ICAR-Central Marine Fisheries Research Institute, Kochi – 682 018, India., India

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 15.1kg 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.

Keywords


Diamondback Squid, Gulf of Mannar, Hook and Line, Mantle Length.

References