Fishing down the food web of the Antarctic continental shelf and slope
ABSTRACT. The history of biotic exploitation for the continental margin (shelf and slope) of the Antarctic Large Marine Ecosystem (LME) is reviewed, with emphasis on the period from 1970 to 2010. In the Antarctic Peninsula portion, marine mammals were decimated by the 1970s and groundfish by the ear...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.299.5862 2023-05-15T13:47:28+02:00 Fishing down the food web of the Antarctic continental shelf and slope David G. Ainley Daniel Pauly The Pennsylvania State University CiteSeerX Archives 2012 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.299.5862 http://www.seaaroundus.org/researcher/dpauly/PDF/2013/Journal Articles/FishingDowntheFoodWeboftheAntarctic.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.299.5862 http://www.seaaroundus.org/researcher/dpauly/PDF/2013/Journal Articles/FishingDowntheFoodWeboftheAntarctic.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.seaaroundus.org/researcher/dpauly/PDF/2013/Journal Articles/FishingDowntheFoodWeboftheAntarctic.pdf text 2012 ftciteseerx 2016-01-07T21:56:37Z ABSTRACT. The history of biotic exploitation for the continental margin (shelf and slope) of the Antarctic Large Marine Ecosystem (LME) is reviewed, with emphasis on the period from 1970 to 2010. In the Antarctic Peninsula portion, marine mammals were decimated by the 1970s and groundfish by the early 1980s. Fishing for Antarctic krill Euphausia superba began upon the demise of groundfish and now is the only fishing that remains in this region. Surveys show that cetacean and most groundfish stocks remain severely depressed, harvest of which is now prohibited by the International Whaling Commission and the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR). On the other hand, krill fishing in this region is underway and in recent years has contributed up to 72 % of the Southern Ocean catch, depending on fishing conditions and the CCAMLR conservation measures in force. Elsewhere along the Antarctic continental margin, marine mammals were also severely depleted by the 1970s, followed directly by relatively low-level fisheries for krill that continued until the early 1990s. Recently in these areas, where fin-fishing is still allowed, fisheries for Antarctic toothfish Dissostichus mawsoni have been initiated, with one of this fish’s main prey, grenadiers Macrourus spp., being taken significantly as by-catch. Continental margin fishing currently accounts for ∼25 % of the total toothfish catch of the Southern Ocean. Fishing along the Antarctic continental margin, especially the Antarctic Peninsula region, is a clear case of both the tragedy of the commons and ‘fishing down the food web’. Text Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctic Toothfish Euphausia superba Southern Ocean Unknown Antarctic Antarctic Peninsula Southern Ocean The Antarctic |
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ftciteseerx |
language |
English |
description |
ABSTRACT. The history of biotic exploitation for the continental margin (shelf and slope) of the Antarctic Large Marine Ecosystem (LME) is reviewed, with emphasis on the period from 1970 to 2010. In the Antarctic Peninsula portion, marine mammals were decimated by the 1970s and groundfish by the early 1980s. Fishing for Antarctic krill Euphausia superba began upon the demise of groundfish and now is the only fishing that remains in this region. Surveys show that cetacean and most groundfish stocks remain severely depressed, harvest of which is now prohibited by the International Whaling Commission and the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR). On the other hand, krill fishing in this region is underway and in recent years has contributed up to 72 % of the Southern Ocean catch, depending on fishing conditions and the CCAMLR conservation measures in force. Elsewhere along the Antarctic continental margin, marine mammals were also severely depleted by the 1970s, followed directly by relatively low-level fisheries for krill that continued until the early 1990s. Recently in these areas, where fin-fishing is still allowed, fisheries for Antarctic toothfish Dissostichus mawsoni have been initiated, with one of this fish’s main prey, grenadiers Macrourus spp., being taken significantly as by-catch. Continental margin fishing currently accounts for ∼25 % of the total toothfish catch of the Southern Ocean. Fishing along the Antarctic continental margin, especially the Antarctic Peninsula region, is a clear case of both the tragedy of the commons and ‘fishing down the food web’. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
David G. Ainley Daniel Pauly |
spellingShingle |
David G. Ainley Daniel Pauly Fishing down the food web of the Antarctic continental shelf and slope |
author_facet |
David G. Ainley Daniel Pauly |
author_sort |
David G. Ainley |
title |
Fishing down the food web of the Antarctic continental shelf and slope |
title_short |
Fishing down the food web of the Antarctic continental shelf and slope |
title_full |
Fishing down the food web of the Antarctic continental shelf and slope |
title_fullStr |
Fishing down the food web of the Antarctic continental shelf and slope |
title_full_unstemmed |
Fishing down the food web of the Antarctic continental shelf and slope |
title_sort |
fishing down the food web of the antarctic continental shelf and slope |
publishDate |
2012 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.299.5862 http://www.seaaroundus.org/researcher/dpauly/PDF/2013/Journal Articles/FishingDowntheFoodWeboftheAntarctic.pdf |
geographic |
Antarctic Antarctic Peninsula Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctic Toothfish Euphausia superba Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctic Toothfish Euphausia superba Southern Ocean |
op_source |
http://www.seaaroundus.org/researcher/dpauly/PDF/2013/Journal Articles/FishingDowntheFoodWeboftheAntarctic.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.299.5862 http://www.seaaroundus.org/researcher/dpauly/PDF/2013/Journal Articles/FishingDowntheFoodWeboftheAntarctic.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766247185561681920 |