Distribution and abundance of the squid Moroteuthis ingens (Cephalopoda: Onychoteuthidae) in the Falkland Islands region of the South Atlantic

Jackson, George D and George, Magnus JA and Buxton, Nicole G (1998) Distribution and abundance of the squid Moroteuthis ingens (Cephalopoda: Onychoteuthidae) in the Falkland Islands region of the South Atlantic. Polar Biology, 20 (3). pp. 161-169. ISSN 0722-4060

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Abstract

The distribution and abundance of the onychoteuthid squid Moroteuthis ingens were assessed for the Patagonian Shelf in the Falkland Islands region. Catch records from the commercial fishery and a research cruise were recorded from 1988 to 1996. Sampling included benthic, pelagic and semi-pelagic trawls and jigging. Moroteuthis ingens was recorded from 1,414 stations out of a total of 9,060 stations with 79.9% of all positive stations being from benthic trawls. Catch size ranged up to approximately 3,000 kg. The length frequency analysis and maturity indices suggested a major recruitment onto the shelf in September with a movement off the shelf during winter. There appears to be a lack of mature females on the Patagonian Shelf, indicating that females migrate into deeper offshore water to spawn. Observations of predation on Moroteuthis ingens on the Patagonian Shelf, along with a literature review, revealed that at least 4 mammal, 17 bird and 13 fish species prey on this squid.

Item Type:
Journal Article
Journal or Publication Title:
Polar Biology
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1100/1100
Subjects:
?? fish speciesfrequency analysismature femalepositive stationcommercial fisherygeneral agricultural and biological sciencesagricultural and biological sciences(all) ??
ID Code:
128729
Deposited By:
Deposited On:
05 Nov 2018 15:00
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Jul 2024 10:52