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Historical legacies of river pollution reconstructed from fish scales

Paloma Morán, Laura Cal, Antonio Cobelo-García, Clara Almécija, Pablo Caballero, Carlos Garcia De Leaniz Orcid Logo

Environmental Pollution, Volume: 234, Pages: 253 - 259

Swansea University Author: Carlos Garcia De Leaniz Orcid Logo

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DOI (Published version): 10.1016/j.envpol.2017.11.057

Abstract

Many rivers have been impacted by heavy metal pollution in the past but the long-term legacies on biodiversity are difficult to estimate. The River Ulla (NW Spain) was impacted by tailings from a copper mine during the 1970-1980s but absence of baseline values and lack of subsequent monitoring have...

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Published in: Environmental Pollution
ISSN: 02697491
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa37669
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first_indexed 2017-12-20T13:49:56Z
last_indexed 2020-06-19T12:52:39Z
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spelling 2020-06-19T11:20:45.8094572 v2 37669 2017-12-20 Historical legacies of river pollution reconstructed from fish scales 1c70acd0fd64edb0856b7cf34393ab02 0000-0003-1650-2729 Carlos Garcia De Leaniz Carlos Garcia De Leaniz true false 2017-12-20 SBI Many rivers have been impacted by heavy metal pollution in the past but the long-term legacies on biodiversity are difficult to estimate. The River Ulla (NW Spain) was impacted by tailings from a copper mine during the 1970-1980s but absence of baseline values and lack of subsequent monitoring have prevented a full impact assessment. We used archived fish scales of Atlantic salmon to reconstruct levels of historical copper pollution and its effects on salmon fitness. Copper bioaccumulation significantly increased over baseline values during the operation of the mine, reaching sublethal levels for salmon survival. Juvenile growth and relative population abundance decreased during mining, but no such effects were observed in a neighbouring river unaffected by mining. Our results indicate that historical copper exposure has probably compromised the fitness of this Atlantic salmon population to the present day, and that fish scales are suitable biomarkers of past river pollution. Journal Article Environmental Pollution 234 253 259 02697491 Atlantic salmon, Copper mine, Scales, Fish growth, Bioaccumulation 31 3 2018 2018-03-31 10.1016/j.envpol.2017.11.057 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University 2020-06-19T11:20:45.8094572 2017-12-20T11:45:05.1352634 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Paloma Morán 1 Laura Cal 2 Antonio Cobelo-García 3 Clara Almécija 4 Pablo Caballero 5 Carlos Garcia De Leaniz 0000-0003-1650-2729 6 0037669-20122017114744.pdf 37669.pdf 2017-12-20T11:47:44.1370000 Output 1134912 application/pdf Version of Record true 2017-12-20T00:00:00.0000000 This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). true eng
title Historical legacies of river pollution reconstructed from fish scales
spellingShingle Historical legacies of river pollution reconstructed from fish scales
Carlos Garcia De Leaniz
title_short Historical legacies of river pollution reconstructed from fish scales
title_full Historical legacies of river pollution reconstructed from fish scales
title_fullStr Historical legacies of river pollution reconstructed from fish scales
title_full_unstemmed Historical legacies of river pollution reconstructed from fish scales
title_sort Historical legacies of river pollution reconstructed from fish scales
author_id_str_mv 1c70acd0fd64edb0856b7cf34393ab02
author_id_fullname_str_mv 1c70acd0fd64edb0856b7cf34393ab02_***_Carlos Garcia De Leaniz
author Carlos Garcia De Leaniz
author2 Paloma Morán
Laura Cal
Antonio Cobelo-García
Clara Almécija
Pablo Caballero
Carlos Garcia De Leaniz
format Journal article
container_title Environmental Pollution
container_volume 234
container_start_page 253
publishDate 2018
institution Swansea University
issn 02697491
doi_str_mv 10.1016/j.envpol.2017.11.057
college_str Faculty of Science and Engineering
hierarchytype
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
document_store_str 1
active_str 0
description Many rivers have been impacted by heavy metal pollution in the past but the long-term legacies on biodiversity are difficult to estimate. The River Ulla (NW Spain) was impacted by tailings from a copper mine during the 1970-1980s but absence of baseline values and lack of subsequent monitoring have prevented a full impact assessment. We used archived fish scales of Atlantic salmon to reconstruct levels of historical copper pollution and its effects on salmon fitness. Copper bioaccumulation significantly increased over baseline values during the operation of the mine, reaching sublethal levels for salmon survival. Juvenile growth and relative population abundance decreased during mining, but no such effects were observed in a neighbouring river unaffected by mining. Our results indicate that historical copper exposure has probably compromised the fitness of this Atlantic salmon population to the present day, and that fish scales are suitable biomarkers of past river pollution.
published_date 2018-03-31T03:47:28Z
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score 11.013148

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