Spawning locations of mackerel icefish at South Georgia
Historical information on the distribution of spawning and larval mackerel icefish (Champsocephalus gunnari) within CCAMLR Subarea 48.3 (South Georgia and Shag Rocks) is assessed. This is considered alongside new data from commercial fisheries and research surveys. It is concluded that there is stro...
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ftnerc:oai:nora.nerc.ac.uk:18580 2023-05-15T16:42:05+02:00 Spawning locations of mackerel icefish at South Georgia Everson, I. North, A.W. Cooper, A.P.R. McWilliam, N.C. Kock, K.-H. 2001 text http://nora.nerc.ac.uk/id/eprint/18580/ https://nora.nerc.ac.uk/id/eprint/18580/1/07everson-etal.pdf https://www.ccamlr.org/en/publications/science_journal/ccamlr-science-volume-8/ccamlr-science-volume-8107-118 en eng CCAMLR https://nora.nerc.ac.uk/id/eprint/18580/1/07everson-etal.pdf Everson, I.; North, A.W.; Cooper, A.P.R.; McWilliam, N.C.; Kock, K.-H. 2001 Spawning locations of mackerel icefish at South Georgia. CCAMLR Science, 8. 107-118. Marine Sciences Publication - Article PeerReviewed 2001 ftnerc 2023-02-04T19:31:51Z Historical information on the distribution of spawning and larval mackerel icefish (Champsocephalus gunnari) within CCAMLR Subarea 48.3 (South Georgia and Shag Rocks) is assessed. This is considered alongside new data from commercial fisheries and research surveys. It is concluded that there is strong evidence of inshore spawning at South Georgia during April within and close to the bays on the north side of the island. Some spawning almost certainly occurs over much of the island shelf, althougl~th is appears to be at a very much lower intensity than inshore. There is some evidence of spawning at Shag Rocks. There are also indications of a possible second spawning season in January, although the evidence is weak. Concentrations of larval icefish within Cumberland Bay are an order of magnitude higher than in adjacent coastal waters and their density declines exponentially offshore. All this evidence indicates that the most important spawning locations are within the bays. Article in Journal/Newspaper Icefish Natural Environment Research Council: NERC Open Research Archive Shag Rocks ENVELOPE(-42.033,-42.033,-53.550,-53.550) Cumberland Bay ENVELOPE(69.052,69.052,-48.781,-48.781) |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
topic |
Marine Sciences |
spellingShingle |
Marine Sciences Everson, I. North, A.W. Cooper, A.P.R. McWilliam, N.C. Kock, K.-H. Spawning locations of mackerel icefish at South Georgia |
topic_facet |
Marine Sciences |
description |
Historical information on the distribution of spawning and larval mackerel icefish (Champsocephalus gunnari) within CCAMLR Subarea 48.3 (South Georgia and Shag Rocks) is assessed. This is considered alongside new data from commercial fisheries and research surveys. It is concluded that there is strong evidence of inshore spawning at South Georgia during April within and close to the bays on the north side of the island. Some spawning almost certainly occurs over much of the island shelf, althougl~th is appears to be at a very much lower intensity than inshore. There is some evidence of spawning at Shag Rocks. There are also indications of a possible second spawning season in January, although the evidence is weak. Concentrations of larval icefish within Cumberland Bay are an order of magnitude higher than in adjacent coastal waters and their density declines exponentially offshore. All this evidence indicates that the most important spawning locations are within the bays. |
format |
Article in Journal/Newspaper |
author |
Everson, I. North, A.W. Cooper, A.P.R. McWilliam, N.C. Kock, K.-H. |
author_facet |
Everson, I. North, A.W. Cooper, A.P.R. McWilliam, N.C. Kock, K.-H. |
author_sort |
Everson, I. |
title |
Spawning locations of mackerel icefish at South Georgia |
title_short |
Spawning locations of mackerel icefish at South Georgia |
title_full |
Spawning locations of mackerel icefish at South Georgia |
title_fullStr |
Spawning locations of mackerel icefish at South Georgia |
title_full_unstemmed |
Spawning locations of mackerel icefish at South Georgia |
title_sort |
spawning locations of mackerel icefish at south georgia |
publisher |
CCAMLR |
publishDate |
2001 |
url |
http://nora.nerc.ac.uk/id/eprint/18580/ https://nora.nerc.ac.uk/id/eprint/18580/1/07everson-etal.pdf https://www.ccamlr.org/en/publications/science_journal/ccamlr-science-volume-8/ccamlr-science-volume-8107-118 |
long_lat |
ENVELOPE(-42.033,-42.033,-53.550,-53.550) ENVELOPE(69.052,69.052,-48.781,-48.781) |
geographic |
Shag Rocks Cumberland Bay |
geographic_facet |
Shag Rocks Cumberland Bay |
genre |
Icefish |
genre_facet |
Icefish |
op_relation |
https://nora.nerc.ac.uk/id/eprint/18580/1/07everson-etal.pdf Everson, I.; North, A.W.; Cooper, A.P.R.; McWilliam, N.C.; Kock, K.-H. 2001 Spawning locations of mackerel icefish at South Georgia. CCAMLR Science, 8. 107-118. |
_version_ |
1766032540864348160 |