Distribution and abundance of the squid Moroteuthis ingens (Cephalopoda: Onychoteuthidae) in the Falkland Islands region of the South Atlantic
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 tra...
Published in: | Polar Biology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
1998
|
Subjects: | |
Online Access: | https://eprints.lancs.ac.uk/id/eprint/128729/ https://doi.org/10.1007/s003000050292 |
id |
ftulancaster:oai:eprints.lancs.ac.uk:128729 |
---|---|
record_format |
openpolar |
spelling |
ftulancaster:oai:eprints.lancs.ac.uk:128729 2023-08-27T04:11:38+02:00 Distribution and abundance of the squid Moroteuthis ingens (Cephalopoda: Onychoteuthidae) in the Falkland Islands region of the South Atlantic Jackson, George D George, Magnus JA Buxton, Nicole G 1998-08 https://eprints.lancs.ac.uk/id/eprint/128729/ https://doi.org/10.1007/s003000050292 unknown 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 Journal Article PeerReviewed 1998 ftulancaster https://doi.org/10.1007/s003000050292 2023-08-03T22:34:18Z 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. Article in Journal/Newspaper Polar Biology Lancaster University: Lancaster Eprints Polar Biology 20 3 161 169 |
institution |
Open Polar |
collection |
Lancaster University: Lancaster Eprints |
op_collection_id |
ftulancaster |
language |
unknown |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Jackson, George D George, Magnus JA Buxton, Nicole G |
spellingShingle |
Jackson, George D George, Magnus JA Buxton, Nicole G Distribution and abundance of the squid Moroteuthis ingens (Cephalopoda: Onychoteuthidae) in the Falkland Islands region of the South Atlantic |
author_facet |
Jackson, George D George, Magnus JA Buxton, Nicole G |
author_sort |
Jackson, George D |
title |
Distribution and abundance of the squid Moroteuthis ingens (Cephalopoda: Onychoteuthidae) in the Falkland Islands region of the South Atlantic |
title_short |
Distribution and abundance of the squid Moroteuthis ingens (Cephalopoda: Onychoteuthidae) in the Falkland Islands region of the South Atlantic |
title_full |
Distribution and abundance of the squid Moroteuthis ingens (Cephalopoda: Onychoteuthidae) in the Falkland Islands region of the South Atlantic |
title_fullStr |
Distribution and abundance of the squid Moroteuthis ingens (Cephalopoda: Onychoteuthidae) in the Falkland Islands region of the South Atlantic |
title_full_unstemmed |
Distribution and abundance of the squid Moroteuthis ingens (Cephalopoda: Onychoteuthidae) in the Falkland Islands region of the South Atlantic |
title_sort |
distribution and abundance of the squid moroteuthis ingens (cephalopoda: onychoteuthidae) in the falkland islands region of the south atlantic |
publishDate |
1998 |
url |
https://eprints.lancs.ac.uk/id/eprint/128729/ https://doi.org/10.1007/s003000050292 |
genre |
Polar Biology |
genre_facet |
Polar Biology |
op_relation |
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 |
op_doi |
https://doi.org/10.1007/s003000050292 |
container_title |
Polar Biology |
container_volume |
20 |
container_issue |
3 |
container_start_page |
161 |
op_container_end_page |
169 |
_version_ |
1775354586806091776 |