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Natural dynamics overshadow anthropogenic impact on marine fauna at an urbanised coastal embayment

Ruth Callaway, Iain Fairley, Jose Horrillo-Caraballo Orcid Logo

Science of The Total Environment, Volume: 716, Start page: 137009

Swansea University Authors: Ruth Callaway, Iain Fairley, Jose Horrillo-Caraballo Orcid Logo

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DOI (Published version): 10.1016/j.scitotenv.2020.137009

Abstract

Understanding vulnerabilities of coastal ecosystems facing anthropogenic use is a precondition for management decisions and development planning. This can be challenging in urbanised areas with multiple activities affecting different faunal communities. The aim of this study was to provide a holisti...

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Published in: Science of The Total Environment
ISSN: 0048-9697
Published: Elsevier BV 2020
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spelling 2020-10-20T14:14:47.9985583 v2 53423 2020-01-28 Natural dynamics overshadow anthropogenic impact on marine fauna at an urbanised coastal embayment 61d7fe28cbb286de1c9c43f45014c490 Ruth Callaway Ruth Callaway true false 568e6f260489dc8139afe77757553513 Iain Fairley Iain Fairley true false 5166f9cd40b7c8628375d3f22d1c473c 0000-0001-7694-3812 Jose Horrillo-Caraballo Jose Horrillo-Caraballo true false 2020-01-28 FGSEN Understanding vulnerabilities of coastal ecosystems facing anthropogenic use is a precondition for management decisions and development planning. This can be challenging in urbanised areas with multiple activities affecting different faunal communities. The aim of this study was to provide a holistic understanding of the relative importance of anthropogenic and natural variables for macroinfauna, epifauna and fish in a heavily modified waterbody (HMWB) designated under the EU Water Framework Directive (WFD). The study area, Swansea Bay (Wales, UK), had two regularly dredged industrial ports, three estuaries, a wastewater discharge point and a dredge-spoil disposal site. Wave and tidal current models were constructed, and environmental data were gathered by field studies. Biota were assessed by grab sampling and dredging. Modelled and empirical data were combined in a Distance-based Linear Model (DistLM) that quantified how much of the faunal variation was explained by wave exposure and tidal currents, sediment characteristics and other environmental factors, and by anthropogenic usage. Wave and tidal current parameters explained over 50% of the variation in all biota. Infauna communities were further linked with sediment properties and epibenthos with distance to estuaries. Fish and epibenthos were affected by a dredge-spoil disposal site, but none of the faunal communities was affected by the wastewater outfall. Biota were predominantly driven by the natural hydrodynamic regime while anthropogenic factors had secondary influence. The study highlighted that ecosystems driven by a strong hydrodynamic regime can be relatively resistant to human activities. Journal Article Science of The Total Environment 716 137009 Elsevier BV 0048-9697 Wave model, Tidal currents, Benthos, Swansea Bay UK, Benthic community structure, Heavily modified waterbody, Urban coast 10 5 2020 2020-05-10 10.1016/j.scitotenv.2020.137009 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2020-10-20T14:14:47.9985583 2020-01-28T00:00:00.0000000 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Ruth Callaway 1 Iain Fairley 2 Jose Horrillo-Caraballo 0000-0001-7694-3812 3 53423__16618__74d0074563ca46b3acb734949f70a8c4.pdf 53423.pdf 2020-02-19T11:59:55.8925259 Output 3362119 application/pdf Version of Record true Released under the terms of a Creative Commons Attribution License (CC-BY). true English http://creativecommons.org/licenses/by/4.0/
title Natural dynamics overshadow anthropogenic impact on marine fauna at an urbanised coastal embayment
spellingShingle Natural dynamics overshadow anthropogenic impact on marine fauna at an urbanised coastal embayment
Ruth Callaway
Iain Fairley
Jose Horrillo-Caraballo
title_short Natural dynamics overshadow anthropogenic impact on marine fauna at an urbanised coastal embayment
title_full Natural dynamics overshadow anthropogenic impact on marine fauna at an urbanised coastal embayment
title_fullStr Natural dynamics overshadow anthropogenic impact on marine fauna at an urbanised coastal embayment
title_full_unstemmed Natural dynamics overshadow anthropogenic impact on marine fauna at an urbanised coastal embayment
title_sort Natural dynamics overshadow anthropogenic impact on marine fauna at an urbanised coastal embayment
author_id_str_mv 61d7fe28cbb286de1c9c43f45014c490
568e6f260489dc8139afe77757553513
5166f9cd40b7c8628375d3f22d1c473c
author_id_fullname_str_mv 61d7fe28cbb286de1c9c43f45014c490_***_Ruth Callaway
568e6f260489dc8139afe77757553513_***_Iain Fairley
5166f9cd40b7c8628375d3f22d1c473c_***_Jose Horrillo-Caraballo
author Ruth Callaway
Iain Fairley
Jose Horrillo-Caraballo
author2 Ruth Callaway
Iain Fairley
Jose Horrillo-Caraballo
format Journal article
container_title Science of The Total Environment
container_volume 716
container_start_page 137009
publishDate 2020
institution Swansea University
issn 0048-9697
doi_str_mv 10.1016/j.scitotenv.2020.137009
publisher Elsevier BV
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
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description Understanding vulnerabilities of coastal ecosystems facing anthropogenic use is a precondition for management decisions and development planning. This can be challenging in urbanised areas with multiple activities affecting different faunal communities. The aim of this study was to provide a holistic understanding of the relative importance of anthropogenic and natural variables for macroinfauna, epifauna and fish in a heavily modified waterbody (HMWB) designated under the EU Water Framework Directive (WFD). The study area, Swansea Bay (Wales, UK), had two regularly dredged industrial ports, three estuaries, a wastewater discharge point and a dredge-spoil disposal site. Wave and tidal current models were constructed, and environmental data were gathered by field studies. Biota were assessed by grab sampling and dredging. Modelled and empirical data were combined in a Distance-based Linear Model (DistLM) that quantified how much of the faunal variation was explained by wave exposure and tidal currents, sediment characteristics and other environmental factors, and by anthropogenic usage. Wave and tidal current parameters explained over 50% of the variation in all biota. Infauna communities were further linked with sediment properties and epibenthos with distance to estuaries. Fish and epibenthos were affected by a dredge-spoil disposal site, but none of the faunal communities was affected by the wastewater outfall. Biota were predominantly driven by the natural hydrodynamic regime while anthropogenic factors had secondary influence. The study highlighted that ecosystems driven by a strong hydrodynamic regime can be relatively resistant to human activities.
published_date 2020-05-10T04:06:22Z
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