Coastal seascape variability in the intensifying East Australian Current Southern Extension
Funding information: This study was funded by Australian Research Council Linkage Grants (LP110200603 awarded to RH, DS and Iain Field, and LP160100162 awarded to IJ, Martina Doublin, MC, GC, DS, Iain Suthers and RH) with contributions from the Taronga Conservation Society Australia, NSW National Pa...
Published in: | Frontiers in Marine Science |
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Main Authors: | , , , , , , , , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2022
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Online Access: | http://hdl.handle.net/10023/26190 https://doi.org/10.3389/fmars.2022.925123 |
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ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/26190 |
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openpolar |
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Open Polar |
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University of St Andrews: Digital Research Repository |
op_collection_id |
ftstandrewserep |
language |
English |
topic |
Marine Science Seascape East Australian Current Extension Climate change Coastal processes Marine ecosystems Spatiotemporal variability Active acoustics GC Oceanography QE Geology DAS SDG 13 - Climate Action SDG 14 - Life Below Water MCC GC QE |
spellingShingle |
Marine Science Seascape East Australian Current Extension Climate change Coastal processes Marine ecosystems Spatiotemporal variability Active acoustics GC Oceanography QE Geology DAS SDG 13 - Climate Action SDG 14 - Life Below Water MCC GC QE Phillips, Lachlan R. Malan, Neil Roughan, Moninya Harcourt, Robert Jonsen, Ian Cox, Martin Brierley, Andrew S. Slip, David Wilkins, Adam Carroll, Gemma Coastal seascape variability in the intensifying East Australian Current Southern Extension |
topic_facet |
Marine Science Seascape East Australian Current Extension Climate change Coastal processes Marine ecosystems Spatiotemporal variability Active acoustics GC Oceanography QE Geology DAS SDG 13 - Climate Action SDG 14 - Life Below Water MCC GC QE |
description |
Funding information: This study was funded by Australian Research Council Linkage Grants (LP110200603 awarded to RH, DS and Iain Field, and LP160100162 awarded to IJ, Martina Doublin, MC, GC, DS, Iain Suthers and RH) with contributions from the Taronga Conservation Society Australia, NSW National Parks and the Australian Antarctic Division. Coastal pelagic ecosystems are highly variable in space and time, with environmental conditions and the distribution of biomass being driven by complex processes operating at multiple scales. The emergent properties of these processes and their interactive effects result in complex and dynamic environmental mosaics referred to as “seascapes”. Mechanisms that link large-scale oceanographic processes and ecological variability in coastal environments remain poorly understood, despite their importance for predicting how ecosystems will respond to climate change. Here we assessed seascape variability along the path of the rapidly intensifying East Australian Current (EAC) Southern Extension in southeast Australia, a hotspot of ocean warming and ecosystem tropicalisation. Using satellite and in situ measures of temperature, salinity and current velocity coupled with contemporaneous measurements of pelagic biomass distribution from nine boat-based active acoustic surveys in five consecutive years, we investigated relationships between the physical environment and the distribution of pelagic biomass (zooplankton and fish) at multiple timescales. Survey periods were characterised by high variability in oceanographic conditions, with variation in coastal conditions influenced by meso-to-large scale processes occurring offshore, including the position and strength of eddies. Intra-annual variability was often of a similar or greater magnitude to inter-annual variability, suggesting highly dynamic conditions with important variation occurring at scales of days to weeks. Two seascape categories were identified being characterised by (A) warmer, less saline water and (B) cooler, more ... |
author2 |
University of St Andrews. Arctic Research Centre University of St Andrews. School of Biology University of St Andrews. Scottish Oceans Institute University of St Andrews. Centre for Research into Ecological & Environmental Modelling University of St Andrews. Pelagic Ecology Research Group University of St Andrews. Marine Alliance for Science & Technology Scotland |
format |
Article in Journal/Newspaper |
author |
Phillips, Lachlan R. Malan, Neil Roughan, Moninya Harcourt, Robert Jonsen, Ian Cox, Martin Brierley, Andrew S. Slip, David Wilkins, Adam Carroll, Gemma |
author_facet |
Phillips, Lachlan R. Malan, Neil Roughan, Moninya Harcourt, Robert Jonsen, Ian Cox, Martin Brierley, Andrew S. Slip, David Wilkins, Adam Carroll, Gemma |
author_sort |
Phillips, Lachlan R. |
title |
Coastal seascape variability in the intensifying East Australian Current Southern Extension |
title_short |
Coastal seascape variability in the intensifying East Australian Current Southern Extension |
title_full |
Coastal seascape variability in the intensifying East Australian Current Southern Extension |
title_fullStr |
Coastal seascape variability in the intensifying East Australian Current Southern Extension |
title_full_unstemmed |
Coastal seascape variability in the intensifying East Australian Current Southern Extension |
title_sort |
coastal seascape variability in the intensifying east australian current southern extension |
publishDate |
2022 |
url |
http://hdl.handle.net/10023/26190 https://doi.org/10.3389/fmars.2022.925123 |
long_lat |
ENVELOPE(-75.217,-75.217,-69.783,-69.783) |
geographic |
Antarctic Martina |
geographic_facet |
Antarctic Martina |
genre |
Antarc* Antarctic Australian Antarctic Division |
genre_facet |
Antarc* Antarctic Australian Antarctic Division |
op_relation |
Frontiers in Marine Science Phillips , L R , Malan , N , Roughan , M , Harcourt , R , Jonsen , I , Cox , M , Brierley , A S , Slip , D , Wilkins , A & Carroll , G 2022 , ' Coastal seascape variability in the intensifying East Australian Current Southern Extension ' , Frontiers in Marine Science , vol. 9 , 925123 . https://doi.org/10.3389/fmars.2022.925123 2296-7745 PURE: 281699738 PURE UUID: f9bfa123-dc13-4623-9133-5154b7ff95f8 Jisc: 641108 ORCID: /0000-0002-6438-6892/work/120849878 WOS: 000864734800001 Scopus: 85140607595 http://hdl.handle.net/10023/26190 https://doi.org/10.3389/fmars.2022.925123 |
op_rights |
Copyright © 2022 Phillips, Malan, Roughan, Harcourt, Jonsen, Cox, Brierley, Slip, Wilkins and Carroll. This is an openaccess article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
op_doi |
https://doi.org/10.3389/fmars.2022.925123 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
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1770272786008244224 |
spelling |
ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/26190 2023-07-02T03:29:49+02:00 Coastal seascape variability in the intensifying East Australian Current Southern Extension Phillips, Lachlan R. Malan, Neil Roughan, Moninya Harcourt, Robert Jonsen, Ian Cox, Martin Brierley, Andrew S. Slip, David Wilkins, Adam Carroll, Gemma University of St Andrews. Arctic Research Centre University of St Andrews. School of Biology University of St Andrews. Scottish Oceans Institute University of St Andrews. Centre for Research into Ecological & Environmental Modelling University of St Andrews. Pelagic Ecology Research Group University of St Andrews. Marine Alliance for Science & Technology Scotland 2022-10-13T11:30:03Z 17 application/pdf http://hdl.handle.net/10023/26190 https://doi.org/10.3389/fmars.2022.925123 eng eng Frontiers in Marine Science Phillips , L R , Malan , N , Roughan , M , Harcourt , R , Jonsen , I , Cox , M , Brierley , A S , Slip , D , Wilkins , A & Carroll , G 2022 , ' Coastal seascape variability in the intensifying East Australian Current Southern Extension ' , Frontiers in Marine Science , vol. 9 , 925123 . https://doi.org/10.3389/fmars.2022.925123 2296-7745 PURE: 281699738 PURE UUID: f9bfa123-dc13-4623-9133-5154b7ff95f8 Jisc: 641108 ORCID: /0000-0002-6438-6892/work/120849878 WOS: 000864734800001 Scopus: 85140607595 http://hdl.handle.net/10023/26190 https://doi.org/10.3389/fmars.2022.925123 Copyright © 2022 Phillips, Malan, Roughan, Harcourt, Jonsen, Cox, Brierley, Slip, Wilkins and Carroll. This is an openaccess article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. Marine Science Seascape East Australian Current Extension Climate change Coastal processes Marine ecosystems Spatiotemporal variability Active acoustics GC Oceanography QE Geology DAS SDG 13 - Climate Action SDG 14 - Life Below Water MCC GC QE Journal article 2022 ftstandrewserep https://doi.org/10.3389/fmars.2022.925123 2023-06-13T18:27:02Z Funding information: This study was funded by Australian Research Council Linkage Grants (LP110200603 awarded to RH, DS and Iain Field, and LP160100162 awarded to IJ, Martina Doublin, MC, GC, DS, Iain Suthers and RH) with contributions from the Taronga Conservation Society Australia, NSW National Parks and the Australian Antarctic Division. Coastal pelagic ecosystems are highly variable in space and time, with environmental conditions and the distribution of biomass being driven by complex processes operating at multiple scales. The emergent properties of these processes and their interactive effects result in complex and dynamic environmental mosaics referred to as “seascapes”. Mechanisms that link large-scale oceanographic processes and ecological variability in coastal environments remain poorly understood, despite their importance for predicting how ecosystems will respond to climate change. Here we assessed seascape variability along the path of the rapidly intensifying East Australian Current (EAC) Southern Extension in southeast Australia, a hotspot of ocean warming and ecosystem tropicalisation. Using satellite and in situ measures of temperature, salinity and current velocity coupled with contemporaneous measurements of pelagic biomass distribution from nine boat-based active acoustic surveys in five consecutive years, we investigated relationships between the physical environment and the distribution of pelagic biomass (zooplankton and fish) at multiple timescales. Survey periods were characterised by high variability in oceanographic conditions, with variation in coastal conditions influenced by meso-to-large scale processes occurring offshore, including the position and strength of eddies. Intra-annual variability was often of a similar or greater magnitude to inter-annual variability, suggesting highly dynamic conditions with important variation occurring at scales of days to weeks. Two seascape categories were identified being characterised by (A) warmer, less saline water and (B) cooler, more ... Article in Journal/Newspaper Antarc* Antarctic Australian Antarctic Division University of St Andrews: Digital Research Repository Antarctic Martina ENVELOPE(-75.217,-75.217,-69.783,-69.783) Frontiers in Marine Science 9 |