Population structure and individual movement of southern right whales around New Zealand and Australia
During the last 2 centuries, southern right whales Eubalaena australis were hunted to near extinction, and an estimated 150 000 were killed by pre-industrial whaling in the 19th century and illegal Soviet whaling in the 20th century. Here we focus on the coastal calving grounds of Australia and New...
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Inter-Research
2011
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Online Access: | http://hdl.handle.net/2292/13716 https://doi.org/10.3354/meps09145 |
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ftunivauckland:oai:researchspace.auckland.ac.nz:2292/13716 2023-05-15T17:10:53+02:00 Population structure and individual movement of southern right whales around New Zealand and Australia Carroll, E Patenaude, N Alexander, A Steel, D Harcourt, R Childerhouse, S Smith, S Bannister, J Constantine, R Baker, CS 2011 http://hdl.handle.net/2292/13716 https://doi.org/10.3354/meps09145 English eng Inter-Research Marine Ecology Progress Series Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/0171-8630/ https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm Copyright: Inter-Research http://purl.org/eprint/accessRights/RestrictedAccess http://dx.doi.org/10.3354/meps09145 Science & Technology Life Sciences & Biomedicine Physical Sciences Ecology Marine & Freshwater Biology Oceanography Environmental Sciences & Ecology Southern right whale Eubalaena australis mtDNA Microsatellite Population structure GENETIC DIFFERENTIATION MEASURE MITOCHONDRIAL-DNA DIVERSITY ATLANTIC RIGHT WHALES EUBALAENA-AUSTRALIS MICROSATELLITE LOCI MEGAPTERA-NOVAEANGLIAE GENOTYPING ERRORS HUMPBACK WHALES BIOPSY SYSTEM SOFTWARE Journal Article 2011 ftunivauckland https://doi.org/10.3354/meps09145 2013-12-07T09:32:54Z During the last 2 centuries, southern right whales Eubalaena australis were hunted to near extinction, and an estimated 150 000 were killed by pre-industrial whaling in the 19th century and illegal Soviet whaling in the 20th century. Here we focus on the coastal calving grounds of Australia and New Zealand (NZ), where previous work suggests 2 genetically distinct stocks of southern right whales are recovering. Historical migration patterns and spatially variable patterns of recovery suggest each of these stocks are subdivided into 2 stocks: (1) NZ, comprising NZ subantarctic (NZSA) and mainland NZ (MNZ) stocks; and (2) Australia, comprising southwest and southeast stocks. We expand upon previous work to investigate population subdivision by analysing over 1000 samples collected at 6 locations across NZ and Australia, although sample sizes were small from some locations. Mitochondrial DNA (mtDNA) control region haplotypes (500 bp) and microsatellite genotypes (13 loci) were used to identify 707 individual whales and to test for genetic differentiation. For the first time, we documented the movement of 7 individual whales between the NZSA and MNZ based on the matching of multilocus genotypes. Given the current and historical evidence, we hypothesise that individuals from the NZ subantarctic are slowly recolonising MNZ, where a former calving ground was extirpated. We also suggest that southeast Australian right whales represent a remnant stock, distinct from the southwest Australian stock, based on significant differentiation in mtDNA haplotype frequencies (F(ST) = 0.15, p < 0.01; Phi(ST) = 0.12, p = 0.02) and contrasting patterns of recovery. In comparison with significant differences in mtDNA haplotype frequencies found between the 3 proposed stocks (overall F(ST) = 0.07, Phi(ST) = 0.12, p < 0.001), we found no significant differentiation in microsatellite loci (overall F(ST) = 0.004, G'(ST) = 0.019, p = 0.07), suggesting ongoing or recent historical reproductive interchange. Article in Journal/Newspaper Megaptera novaeangliae Southern Right Whale University of Auckland Research Repository - ResearchSpace New Zealand Marine Ecology Progress Series 432 257 268 |
institution |
Open Polar |
collection |
University of Auckland Research Repository - ResearchSpace |
op_collection_id |
ftunivauckland |
language |
English |
topic |
Science & Technology Life Sciences & Biomedicine Physical Sciences Ecology Marine & Freshwater Biology Oceanography Environmental Sciences & Ecology Southern right whale Eubalaena australis mtDNA Microsatellite Population structure GENETIC DIFFERENTIATION MEASURE MITOCHONDRIAL-DNA DIVERSITY ATLANTIC RIGHT WHALES EUBALAENA-AUSTRALIS MICROSATELLITE LOCI MEGAPTERA-NOVAEANGLIAE GENOTYPING ERRORS HUMPBACK WHALES BIOPSY SYSTEM SOFTWARE |
spellingShingle |
Science & Technology Life Sciences & Biomedicine Physical Sciences Ecology Marine & Freshwater Biology Oceanography Environmental Sciences & Ecology Southern right whale Eubalaena australis mtDNA Microsatellite Population structure GENETIC DIFFERENTIATION MEASURE MITOCHONDRIAL-DNA DIVERSITY ATLANTIC RIGHT WHALES EUBALAENA-AUSTRALIS MICROSATELLITE LOCI MEGAPTERA-NOVAEANGLIAE GENOTYPING ERRORS HUMPBACK WHALES BIOPSY SYSTEM SOFTWARE Carroll, E Patenaude, N Alexander, A Steel, D Harcourt, R Childerhouse, S Smith, S Bannister, J Constantine, R Baker, CS Population structure and individual movement of southern right whales around New Zealand and Australia |
topic_facet |
Science & Technology Life Sciences & Biomedicine Physical Sciences Ecology Marine & Freshwater Biology Oceanography Environmental Sciences & Ecology Southern right whale Eubalaena australis mtDNA Microsatellite Population structure GENETIC DIFFERENTIATION MEASURE MITOCHONDRIAL-DNA DIVERSITY ATLANTIC RIGHT WHALES EUBALAENA-AUSTRALIS MICROSATELLITE LOCI MEGAPTERA-NOVAEANGLIAE GENOTYPING ERRORS HUMPBACK WHALES BIOPSY SYSTEM SOFTWARE |
description |
During the last 2 centuries, southern right whales Eubalaena australis were hunted to near extinction, and an estimated 150 000 were killed by pre-industrial whaling in the 19th century and illegal Soviet whaling in the 20th century. Here we focus on the coastal calving grounds of Australia and New Zealand (NZ), where previous work suggests 2 genetically distinct stocks of southern right whales are recovering. Historical migration patterns and spatially variable patterns of recovery suggest each of these stocks are subdivided into 2 stocks: (1) NZ, comprising NZ subantarctic (NZSA) and mainland NZ (MNZ) stocks; and (2) Australia, comprising southwest and southeast stocks. We expand upon previous work to investigate population subdivision by analysing over 1000 samples collected at 6 locations across NZ and Australia, although sample sizes were small from some locations. Mitochondrial DNA (mtDNA) control region haplotypes (500 bp) and microsatellite genotypes (13 loci) were used to identify 707 individual whales and to test for genetic differentiation. For the first time, we documented the movement of 7 individual whales between the NZSA and MNZ based on the matching of multilocus genotypes. Given the current and historical evidence, we hypothesise that individuals from the NZ subantarctic are slowly recolonising MNZ, where a former calving ground was extirpated. We also suggest that southeast Australian right whales represent a remnant stock, distinct from the southwest Australian stock, based on significant differentiation in mtDNA haplotype frequencies (F(ST) = 0.15, p < 0.01; Phi(ST) = 0.12, p = 0.02) and contrasting patterns of recovery. In comparison with significant differences in mtDNA haplotype frequencies found between the 3 proposed stocks (overall F(ST) = 0.07, Phi(ST) = 0.12, p < 0.001), we found no significant differentiation in microsatellite loci (overall F(ST) = 0.004, G'(ST) = 0.019, p = 0.07), suggesting ongoing or recent historical reproductive interchange. |
format |
Article in Journal/Newspaper |
author |
Carroll, E Patenaude, N Alexander, A Steel, D Harcourt, R Childerhouse, S Smith, S Bannister, J Constantine, R Baker, CS |
author_facet |
Carroll, E Patenaude, N Alexander, A Steel, D Harcourt, R Childerhouse, S Smith, S Bannister, J Constantine, R Baker, CS |
author_sort |
Carroll, E |
title |
Population structure and individual movement of southern right whales around New Zealand and Australia |
title_short |
Population structure and individual movement of southern right whales around New Zealand and Australia |
title_full |
Population structure and individual movement of southern right whales around New Zealand and Australia |
title_fullStr |
Population structure and individual movement of southern right whales around New Zealand and Australia |
title_full_unstemmed |
Population structure and individual movement of southern right whales around New Zealand and Australia |
title_sort |
population structure and individual movement of southern right whales around new zealand and australia |
publisher |
Inter-Research |
publishDate |
2011 |
url |
http://hdl.handle.net/2292/13716 https://doi.org/10.3354/meps09145 |
geographic |
New Zealand |
geographic_facet |
New Zealand |
genre |
Megaptera novaeangliae Southern Right Whale |
genre_facet |
Megaptera novaeangliae Southern Right Whale |
op_source |
http://dx.doi.org/10.3354/meps09145 |
op_relation |
Marine Ecology Progress Series |
op_rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/0171-8630/ https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm Copyright: Inter-Research http://purl.org/eprint/accessRights/RestrictedAccess |
op_doi |
https://doi.org/10.3354/meps09145 |
container_title |
Marine Ecology Progress Series |
container_volume |
432 |
container_start_page |
257 |
op_container_end_page |
268 |
_version_ |
1766067547881340928 |