Does large-scale ocean circulation structure life history connectivity in Antarctic toothfish ( Dissostichus mawsoni)?
A multidisciplinary approach incorporating otolith chemistry, age data, and numerical Lagrangian particle simulations indicated a single, self-recruiting population of Antarctic toothfish (Dissostichus mawsoni) in the Southeast Pacific Basin (SPB) and Ross Sea, with a life history structured by the...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
---|---|
Main Authors: | , , , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
2012
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/f2012-111 http://www.nrcresearchpress.com/doi/full-xml/10.1139/f2012-111 http://www.nrcresearchpress.com/doi/pdf/10.1139/f2012-111 |
id |
crcansciencepubl:10.1139/f2012-111 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/f2012-111 2024-09-09T19:07:39+00:00 Does large-scale ocean circulation structure life history connectivity in Antarctic toothfish ( Dissostichus mawsoni)? Ashford, Julian Dinniman, Michael Brooks, Cassandra Andrews, Allen H. Hofmann, Eileen Cailliet, Gregor Jones, Christopher Ramanna, Nakul Gillanders, Bronwyn 2012 http://dx.doi.org/10.1139/f2012-111 http://www.nrcresearchpress.com/doi/full-xml/10.1139/f2012-111 http://www.nrcresearchpress.com/doi/pdf/10.1139/f2012-111 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 69, issue 12, page 1903-1919 ISSN 0706-652X 1205-7533 journal-article 2012 crcansciencepubl https://doi.org/10.1139/f2012-111 2024-07-25T04:10:05Z A multidisciplinary approach incorporating otolith chemistry, age data, and numerical Lagrangian particle simulations indicated a single, self-recruiting population of Antarctic toothfish (Dissostichus mawsoni) in the Southeast Pacific Basin (SPB) and Ross Sea, with a life history structured by the large-scale circulation. Chemistry deposited prior to capture along otolith edges demonstrated strong environmental heterogeneity, yet the chemistry in otolith nuclei, deposited during early life, showed no differences. Age data showed only adult fish in catches on the Pacific–Antarctic Ridge in the SPB and structuring of life stages consistent with transport pathways from the northern Ross Sea. Lagrangian particle simulations predicted that early life stages following the flow in the SPB would be transported to areas in the Ross Sea where juveniles are caught, whereas the circulation would facilitate adult movement along the shelf slope and back into the SPB where spawning adults are caught. These results suggest that successfully spawning fish spend only a part of their adult life history in the Ross Sea, areas in the eastern Ross Sea contribute disproportionately to the spawning population, and areas in the southwestern Ross Sea may supply fisheries in the southern Indian Ocean. Article in Journal/Newspaper Antarc* Antarctic Antarctic Toothfish Ross Sea Canadian Science Publishing Antarctic Ross Sea Pacific Indian Southeast Pacific Basin ENVELOPE(-115.000,-115.000,-60.000,-60.000) Canadian Journal of Fisheries and Aquatic Sciences 69 12 1903 1919 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
A multidisciplinary approach incorporating otolith chemistry, age data, and numerical Lagrangian particle simulations indicated a single, self-recruiting population of Antarctic toothfish (Dissostichus mawsoni) in the Southeast Pacific Basin (SPB) and Ross Sea, with a life history structured by the large-scale circulation. Chemistry deposited prior to capture along otolith edges demonstrated strong environmental heterogeneity, yet the chemistry in otolith nuclei, deposited during early life, showed no differences. Age data showed only adult fish in catches on the Pacific–Antarctic Ridge in the SPB and structuring of life stages consistent with transport pathways from the northern Ross Sea. Lagrangian particle simulations predicted that early life stages following the flow in the SPB would be transported to areas in the Ross Sea where juveniles are caught, whereas the circulation would facilitate adult movement along the shelf slope and back into the SPB where spawning adults are caught. These results suggest that successfully spawning fish spend only a part of their adult life history in the Ross Sea, areas in the eastern Ross Sea contribute disproportionately to the spawning population, and areas in the southwestern Ross Sea may supply fisheries in the southern Indian Ocean. |
author2 |
Gillanders, Bronwyn |
format |
Article in Journal/Newspaper |
author |
Ashford, Julian Dinniman, Michael Brooks, Cassandra Andrews, Allen H. Hofmann, Eileen Cailliet, Gregor Jones, Christopher Ramanna, Nakul |
spellingShingle |
Ashford, Julian Dinniman, Michael Brooks, Cassandra Andrews, Allen H. Hofmann, Eileen Cailliet, Gregor Jones, Christopher Ramanna, Nakul Does large-scale ocean circulation structure life history connectivity in Antarctic toothfish ( Dissostichus mawsoni)? |
author_facet |
Ashford, Julian Dinniman, Michael Brooks, Cassandra Andrews, Allen H. Hofmann, Eileen Cailliet, Gregor Jones, Christopher Ramanna, Nakul |
author_sort |
Ashford, Julian |
title |
Does large-scale ocean circulation structure life history connectivity in Antarctic toothfish ( Dissostichus mawsoni)? |
title_short |
Does large-scale ocean circulation structure life history connectivity in Antarctic toothfish ( Dissostichus mawsoni)? |
title_full |
Does large-scale ocean circulation structure life history connectivity in Antarctic toothfish ( Dissostichus mawsoni)? |
title_fullStr |
Does large-scale ocean circulation structure life history connectivity in Antarctic toothfish ( Dissostichus mawsoni)? |
title_full_unstemmed |
Does large-scale ocean circulation structure life history connectivity in Antarctic toothfish ( Dissostichus mawsoni)? |
title_sort |
does large-scale ocean circulation structure life history connectivity in antarctic toothfish ( dissostichus mawsoni)? |
publisher |
Canadian Science Publishing |
publishDate |
2012 |
url |
http://dx.doi.org/10.1139/f2012-111 http://www.nrcresearchpress.com/doi/full-xml/10.1139/f2012-111 http://www.nrcresearchpress.com/doi/pdf/10.1139/f2012-111 |
long_lat |
ENVELOPE(-115.000,-115.000,-60.000,-60.000) |
geographic |
Antarctic Ross Sea Pacific Indian Southeast Pacific Basin |
geographic_facet |
Antarctic Ross Sea Pacific Indian Southeast Pacific Basin |
genre |
Antarc* Antarctic Antarctic Toothfish Ross Sea |
genre_facet |
Antarc* Antarctic Antarctic Toothfish Ross Sea |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 69, issue 12, page 1903-1919 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f2012-111 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
69 |
container_issue |
12 |
container_start_page |
1903 |
op_container_end_page |
1919 |
_version_ |
1809821808704094208 |