Development of the Patagonian toothfish ( Dissostichus eleginoides ) tagging program in Division 58.5.2, 1997-2014
Patagonian toothfish have been tagged during commercial fishing and research activities adjacent to Heard Island and the McDonald Islands (HIMI, CCAMLR Division 58.5.2) since 1998, with 27,679 toothfish tagged and released, and 4925 recaptures. The data derived from this program has been valuable in...
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ftunivtasecite:oai:ecite.utas.edu.au:100475 2023-05-15T16:33:55+02:00 Development of the Patagonian toothfish ( Dissostichus eleginoides ) tagging program in Division 58.5.2, 1997-2014 Welsford, DC Peron, C Ziegler, PE Lamb, TD 2014 image/png http://ecite.utas.edu.au/100475 en eng - http://ecite.utas.edu.au/100475/1/WG-FSA14-43.PNG Welsford, DC and Peron, C and Ziegler, PE and Lamb, TD, Development of the Patagonian toothfish ( Dissostichus eleginoides ) tagging program in Division 58.5.2, 1997-2014, CCAMLR 2014 (2014) [Non Refereed Conference Paper] http://ecite.utas.edu.au/100475 Agricultural and Veterinary Sciences Fisheries Sciences Fisheries Management Non Refereed Conference Paper NonPeerReviewed 2014 ftunivtasecite 2019-12-13T22:02:15Z Patagonian toothfish have been tagged during commercial fishing and research activities adjacent to Heard Island and the McDonald Islands (HIMI, CCAMLR Division 58.5.2) since 1998, with 27,679 toothfish tagged and released, and 4925 recaptures. The data derived from this program has been valuable in estimating key population parameters for toothfish in this region, and have been used in the 2014 stock assessment (Ziegler, et al, 2014) in various ways including: local abundance estimators; natural mortality; movement rates; growth; stock structure; and estimation of q of the trawl surveys; However, due to the spatial pattern of releases, toothfish movement, and recapture effort, it is unlikely that these data can currently be used in an unbiased manner to estimate stock abundance. Developing spatially explicit models that account for fleet dynamics, and phenotypic variability in post-release behaviour, remains an issue for all assessments incorporating tagging data and, in particular, in Division 58.5.2. Plans to develop such spatial models, as well as increasing tagging rates and attempting to spread the release and recapture effort, are likely to rapidly improve the utility of this data for future assessments. Conference Object Heard Island McDonald Islands Patagonian Toothfish eCite UTAS (University of Tasmania) Heard ENVELOPE(73.510,73.510,-53.117,-53.117) Heard Island Heard Island ENVELOPE(73.510,73.510,-53.117,-53.117) McDonald Islands ENVELOPE(72.600,72.600,-53.033,-53.033) |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
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ftunivtasecite |
language |
English |
topic |
Agricultural and Veterinary Sciences Fisheries Sciences Fisheries Management |
spellingShingle |
Agricultural and Veterinary Sciences Fisheries Sciences Fisheries Management Welsford, DC Peron, C Ziegler, PE Lamb, TD Development of the Patagonian toothfish ( Dissostichus eleginoides ) tagging program in Division 58.5.2, 1997-2014 |
topic_facet |
Agricultural and Veterinary Sciences Fisheries Sciences Fisheries Management |
description |
Patagonian toothfish have been tagged during commercial fishing and research activities adjacent to Heard Island and the McDonald Islands (HIMI, CCAMLR Division 58.5.2) since 1998, with 27,679 toothfish tagged and released, and 4925 recaptures. The data derived from this program has been valuable in estimating key population parameters for toothfish in this region, and have been used in the 2014 stock assessment (Ziegler, et al, 2014) in various ways including: local abundance estimators; natural mortality; movement rates; growth; stock structure; and estimation of q of the trawl surveys; However, due to the spatial pattern of releases, toothfish movement, and recapture effort, it is unlikely that these data can currently be used in an unbiased manner to estimate stock abundance. Developing spatially explicit models that account for fleet dynamics, and phenotypic variability in post-release behaviour, remains an issue for all assessments incorporating tagging data and, in particular, in Division 58.5.2. Plans to develop such spatial models, as well as increasing tagging rates and attempting to spread the release and recapture effort, are likely to rapidly improve the utility of this data for future assessments. |
format |
Conference Object |
author |
Welsford, DC Peron, C Ziegler, PE Lamb, TD |
author_facet |
Welsford, DC Peron, C Ziegler, PE Lamb, TD |
author_sort |
Welsford, DC |
title |
Development of the Patagonian toothfish ( Dissostichus eleginoides ) tagging program in Division 58.5.2, 1997-2014 |
title_short |
Development of the Patagonian toothfish ( Dissostichus eleginoides ) tagging program in Division 58.5.2, 1997-2014 |
title_full |
Development of the Patagonian toothfish ( Dissostichus eleginoides ) tagging program in Division 58.5.2, 1997-2014 |
title_fullStr |
Development of the Patagonian toothfish ( Dissostichus eleginoides ) tagging program in Division 58.5.2, 1997-2014 |
title_full_unstemmed |
Development of the Patagonian toothfish ( Dissostichus eleginoides ) tagging program in Division 58.5.2, 1997-2014 |
title_sort |
development of the patagonian toothfish ( dissostichus eleginoides ) tagging program in division 58.5.2, 1997-2014 |
publisher |
- |
publishDate |
2014 |
url |
http://ecite.utas.edu.au/100475 |
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 |
Heard Heard Island Heard Island McDonald Islands |
geographic_facet |
Heard Heard Island Heard Island McDonald Islands |
genre |
Heard Island McDonald Islands Patagonian Toothfish |
genre_facet |
Heard Island McDonald Islands Patagonian Toothfish |
op_relation |
http://ecite.utas.edu.au/100475/1/WG-FSA14-43.PNG Welsford, DC and Peron, C and Ziegler, PE and Lamb, TD, Development of the Patagonian toothfish ( Dissostichus eleginoides ) tagging program in Division 58.5.2, 1997-2014, CCAMLR 2014 (2014) [Non Refereed Conference Paper] http://ecite.utas.edu.au/100475 |
_version_ |
1766023666719522816 |