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Squid Jigging Operations in the Southern Ocean

140.00

Product Description

Fishing trials with various types of squid jigs were attempted in the Southern Ocean from 40o to 43o S and 53o to 58o3’ E during the 6th Indian Southern Ocean Expedition from 23 December 2011 to 6 February 2012. Squid jigging operations were carried out during nights with different types of jigs namely local jigs, jigs with LED lights and imported jigs. Total of 71 squids, approximately weighing 60 kg was landed by hand squid jigging. Three species were landed viz; Sthenoteuthis oualaniensis, S. bartrami and Todarodes filippovae. S. oualaniensis and S. bartrami are widely reported from the tropical Indian Ocean and T. filippovae is a typical Southern Ocean species. Jigging operations could not be carried out on most of the nights due to very rough seas, strong currents and winds during the cruise. Seawater characteristics such as temperature, salinity, and chlorophyll were determined using a CTD water sampler. Imported jigs were found to be more efficient than local jigs and jigs with LED lights. Morphometric measurements along with the length and weight of different species of squids caught were recorded. Length of S. bartrami ranged from 20.5 to 48.8 cm and weight ranged from 0.2 to 2.8 kg and length of T. filippovae ranged from 19.4 to 24.8 cm and weight ranged from 0.12 to 0.27 kg. With great demand for seafood especially squids, there is a possibility of harvesting the under-exploited stocks of oceanic squids especially in the Southern Ocean to cater to protein food for mankind.

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