Modelling the spatial distribution of Patagonian toothfish (Dissostichus eleginoides) by length and age around Heard Island and McDonald Islands on the Kerguelen Plateau
Over 27 000 fish caught around Heard Island and McDonald Islands (HIMI) on theKerguelen Plateau have been aged from sectioned otoliths in the Australian ageingprogram since 1999, comprising more than 47 000 individual reads from seven differentreaders. Extensive length and age data for Patagonian to...
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Australian Antarctic Division
2019
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Online Access: | https://eprints.utas.edu.au/32592/ https://eprints.utas.edu.au/32592/1/137701%20-%20Modelling%20the%20spatial%20distribution%20of%20Patagonian%20toothfish%20%28Dissostichus%20eleginoides%29%20by%20length%20and%20age.pdf http://heardisland.antarctica.gov.au/research/kerguelen-plateau-symposium/the-kerguelen-plateau-marine-ecosystems-and-fisheries |
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ftunivtasmania:oai:eprints.utas.edu.au:32592 2023-05-15T16:33:53+02:00 Modelling the spatial distribution of Patagonian toothfish (Dissostichus eleginoides) by length and age around Heard Island and McDonald Islands on the Kerguelen Plateau Farmer, B Nowara, GB Barnes, TC Burch, P Woodcock, E Ziegler, P Welsford, DC Welsford, DC Dell, J Duhamel, G 2019 application/pdf https://eprints.utas.edu.au/32592/ https://eprints.utas.edu.au/32592/1/137701%20-%20Modelling%20the%20spatial%20distribution%20of%20Patagonian%20toothfish%20%28Dissostichus%20eleginoides%29%20by%20length%20and%20age.pdf http://heardisland.antarctica.gov.au/research/kerguelen-plateau-symposium/the-kerguelen-plateau-marine-ecosystems-and-fisheries en eng Australian Antarctic Division https://eprints.utas.edu.au/32592/1/137701%20-%20Modelling%20the%20spatial%20distribution%20of%20Patagonian%20toothfish%20%28Dissostichus%20eleginoides%29%20by%20length%20and%20age.pdf Farmer, B, Nowara, GB, Barnes, TC, Burch, P orcid:0000-0002-9853-462X , Woodcock, E, Ziegler, P and Welsford, DC 2019 , 'Modelling the spatial distribution of Patagonian toothfish (Dissostichus eleginoides) by length and age around Heard Island and McDonald Islands on the Kerguelen Plateau', in DC Welsford and J Dell and G Duhamel (eds.), The Kerguelen Plateau: marine ecosystem and fisheries. Proceedings of the Second Symposium , Australian Antarctic Division, Kingston, Tasmania, pp. 219-235 . modelling age structure Patagonian toothfish Dissostichus eleginoides Heard Island and McDonald Islands Kerguelen Plateau spatial distribution ageing Conference Publication PeerReviewed 2019 ftunivtasmania 2021-09-20T22:18:28Z Over 27 000 fish caught around Heard Island and McDonald Islands (HIMI) on theKerguelen Plateau have been aged from sectioned otoliths in the Australian ageingprogram since 1999, comprising more than 47 000 individual reads from seven differentreaders. Extensive length and age data for Patagonian toothfish (Dissostichus eleginoides)in particular can be used for large-scale spatial analyses across this region. In this paper wepresent spatial models of median toothfish length and age across the Australian exclusiveeconomic zone (EEZ) at HIMI. Both models revealed strong patterns in the spatialdistribution of toothfish, particularly in the concentration of smaller and younger fish onthe shallower parts of the plateau (<500 m), and the occurrence of fish with increasingsize and age in deeper water. These spatial analyses will aid in the further refinement ofhypotheses regarding the habitat use and movement of different life history stages oftoothfish in order to support appropriate management strategies for the species. Conference Object Heard Island McDonald Islands Patagonian Toothfish University of Tasmania: UTas ePrints Kerguelen Heard Island Heard Island ENVELOPE(73.510,73.510,-53.117,-53.117) Heard ENVELOPE(73.510,73.510,-53.117,-53.117) McDonald Islands ENVELOPE(72.600,72.600,-53.033,-53.033) |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
modelling age structure Patagonian toothfish Dissostichus eleginoides Heard Island and McDonald Islands Kerguelen Plateau spatial distribution ageing |
spellingShingle |
modelling age structure Patagonian toothfish Dissostichus eleginoides Heard Island and McDonald Islands Kerguelen Plateau spatial distribution ageing Farmer, B Nowara, GB Barnes, TC Burch, P Woodcock, E Ziegler, P Welsford, DC Modelling the spatial distribution of Patagonian toothfish (Dissostichus eleginoides) by length and age around Heard Island and McDonald Islands on the Kerguelen Plateau |
topic_facet |
modelling age structure Patagonian toothfish Dissostichus eleginoides Heard Island and McDonald Islands Kerguelen Plateau spatial distribution ageing |
description |
Over 27 000 fish caught around Heard Island and McDonald Islands (HIMI) on theKerguelen Plateau have been aged from sectioned otoliths in the Australian ageingprogram since 1999, comprising more than 47 000 individual reads from seven differentreaders. Extensive length and age data for Patagonian toothfish (Dissostichus eleginoides)in particular can be used for large-scale spatial analyses across this region. In this paper wepresent spatial models of median toothfish length and age across the Australian exclusiveeconomic zone (EEZ) at HIMI. Both models revealed strong patterns in the spatialdistribution of toothfish, particularly in the concentration of smaller and younger fish onthe shallower parts of the plateau (<500 m), and the occurrence of fish with increasingsize and age in deeper water. These spatial analyses will aid in the further refinement ofhypotheses regarding the habitat use and movement of different life history stages oftoothfish in order to support appropriate management strategies for the species. |
author2 |
Welsford, DC Dell, J Duhamel, G |
format |
Conference Object |
author |
Farmer, B Nowara, GB Barnes, TC Burch, P Woodcock, E Ziegler, P Welsford, DC |
author_facet |
Farmer, B Nowara, GB Barnes, TC Burch, P Woodcock, E Ziegler, P Welsford, DC |
author_sort |
Farmer, B |
title |
Modelling the spatial distribution of Patagonian toothfish (Dissostichus eleginoides) by length and age around Heard Island and McDonald Islands on the Kerguelen Plateau |
title_short |
Modelling the spatial distribution of Patagonian toothfish (Dissostichus eleginoides) by length and age around Heard Island and McDonald Islands on the Kerguelen Plateau |
title_full |
Modelling the spatial distribution of Patagonian toothfish (Dissostichus eleginoides) by length and age around Heard Island and McDonald Islands on the Kerguelen Plateau |
title_fullStr |
Modelling the spatial distribution of Patagonian toothfish (Dissostichus eleginoides) by length and age around Heard Island and McDonald Islands on the Kerguelen Plateau |
title_full_unstemmed |
Modelling the spatial distribution of Patagonian toothfish (Dissostichus eleginoides) by length and age around Heard Island and McDonald Islands on the Kerguelen Plateau |
title_sort |
modelling the spatial distribution of patagonian toothfish (dissostichus eleginoides) by length and age around heard island and mcdonald islands on the kerguelen plateau |
publisher |
Australian Antarctic Division |
publishDate |
2019 |
url |
https://eprints.utas.edu.au/32592/ https://eprints.utas.edu.au/32592/1/137701%20-%20Modelling%20the%20spatial%20distribution%20of%20Patagonian%20toothfish%20%28Dissostichus%20eleginoides%29%20by%20length%20and%20age.pdf http://heardisland.antarctica.gov.au/research/kerguelen-plateau-symposium/the-kerguelen-plateau-marine-ecosystems-and-fisheries |
long_lat |
ENVELOPE(73.510,73.510,-53.117,-53.117) ENVELOPE(73.510,73.510,-53.117,-53.117) ENVELOPE(72.600,72.600,-53.033,-53.033) |
geographic |
Kerguelen Heard Island Heard Island Heard McDonald Islands |
geographic_facet |
Kerguelen Heard Island Heard Island Heard McDonald Islands |
genre |
Heard Island McDonald Islands Patagonian Toothfish |
genre_facet |
Heard Island McDonald Islands Patagonian Toothfish |
op_relation |
https://eprints.utas.edu.au/32592/1/137701%20-%20Modelling%20the%20spatial%20distribution%20of%20Patagonian%20toothfish%20%28Dissostichus%20eleginoides%29%20by%20length%20and%20age.pdf Farmer, B, Nowara, GB, Barnes, TC, Burch, P orcid:0000-0002-9853-462X , Woodcock, E, Ziegler, P and Welsford, DC 2019 , 'Modelling the spatial distribution of Patagonian toothfish (Dissostichus eleginoides) by length and age around Heard Island and McDonald Islands on the Kerguelen Plateau', in DC Welsford and J Dell and G Duhamel (eds.), The Kerguelen Plateau: marine ecosystem and fisheries. Proceedings of the Second Symposium , Australian Antarctic Division, Kingston, Tasmania, pp. 219-235 . |
_version_ |
1766023617385070592 |