Co-occurrence of native Ostrea edulisand non-native Crassostrea gigasrevealed by monitoring of intertidal oyster populations
Coastal ecosystems are particularly vulnerable to alien invasions. Regular, standardized, targeted monitoring of coastal areas helps to detect the arrival of non-native species early, identify sites most vulnerable to invasion, and assess potential for further spread. This study quantified the sprea...
Published in: | Journal of the Marine Biological Association of the United Kingdom |
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Online Access: | http://dx.doi.org/10.1017/s0025315417001448 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315417001448 |
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crcambridgeupr:10.1017/s0025315417001448 2024-09-15T18:03:16+00:00 Co-occurrence of native Ostrea edulisand non-native Crassostrea gigasrevealed by monitoring of intertidal oyster populations Zwerschke, Nadescha Kochmann, Judith Ashton, Elizabeth C. Crowe, Tasman P. Roberts, Dai O'Connor, Nessa E. 2017 http://dx.doi.org/10.1017/s0025315417001448 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315417001448 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of the Marine Biological Association of the United Kingdom volume 98, issue 8, page 2029-2038 ISSN 0025-3154 1469-7769 journal-article 2017 crcambridgeupr https://doi.org/10.1017/s0025315417001448 2024-08-14T04:02:27Z Coastal ecosystems are particularly vulnerable to alien invasions. Regular, standardized, targeted monitoring of coastal areas helps to detect the arrival of non-native species early, identify sites most vulnerable to invasion, and assess potential for further spread. This study quantified the spread and changes in distribution of non-native oyster, Crassostrea gigas , populations around the coast of Ireland. In total 37 sites were surveyed, in areas which either currently or previously harboured cultivated C. gigas , for the presence and abundance of ‘wild’ C. gigas . Wild populations were identified at 20 sites and at four additional sites C. gigas was observed as recently discarded from aquaculture activity. Five of the invaded sites were identified as being highly suitable for a population expansion based on their current population status. Importantly, we also identified individuals of C. gigas and native European oysters, Ostrea edulis , co-occurring within the same shore at five sites. This is the first record to our knowledge of such co-occurrence within Europe. This evidence of co-existing oyster species raises concerns regarding the potential impact of C. gigas on recovering O. edulis populations. In Ireland, however, C. gigas does not typically spread extensively from introduction points, and although self-containing populations exist, they are currently sustained at a much lower density than those observed in other regions such as the Wadden Sea or French Atlantic coasts. We suggest, therefore, that to protect native oyster populations, C. gigas should be eradicated where co-occurring with O. edulis and recommend continuous monitoring of invaded sites. Article in Journal/Newspaper Crassostrea gigas Cambridge University Press Journal of the Marine Biological Association of the United Kingdom 98 8 2029 2038 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Coastal ecosystems are particularly vulnerable to alien invasions. Regular, standardized, targeted monitoring of coastal areas helps to detect the arrival of non-native species early, identify sites most vulnerable to invasion, and assess potential for further spread. This study quantified the spread and changes in distribution of non-native oyster, Crassostrea gigas , populations around the coast of Ireland. In total 37 sites were surveyed, in areas which either currently or previously harboured cultivated C. gigas , for the presence and abundance of ‘wild’ C. gigas . Wild populations were identified at 20 sites and at four additional sites C. gigas was observed as recently discarded from aquaculture activity. Five of the invaded sites were identified as being highly suitable for a population expansion based on their current population status. Importantly, we also identified individuals of C. gigas and native European oysters, Ostrea edulis , co-occurring within the same shore at five sites. This is the first record to our knowledge of such co-occurrence within Europe. This evidence of co-existing oyster species raises concerns regarding the potential impact of C. gigas on recovering O. edulis populations. In Ireland, however, C. gigas does not typically spread extensively from introduction points, and although self-containing populations exist, they are currently sustained at a much lower density than those observed in other regions such as the Wadden Sea or French Atlantic coasts. We suggest, therefore, that to protect native oyster populations, C. gigas should be eradicated where co-occurring with O. edulis and recommend continuous monitoring of invaded sites. |
format |
Article in Journal/Newspaper |
author |
Zwerschke, Nadescha Kochmann, Judith Ashton, Elizabeth C. Crowe, Tasman P. Roberts, Dai O'Connor, Nessa E. |
spellingShingle |
Zwerschke, Nadescha Kochmann, Judith Ashton, Elizabeth C. Crowe, Tasman P. Roberts, Dai O'Connor, Nessa E. Co-occurrence of native Ostrea edulisand non-native Crassostrea gigasrevealed by monitoring of intertidal oyster populations |
author_facet |
Zwerschke, Nadescha Kochmann, Judith Ashton, Elizabeth C. Crowe, Tasman P. Roberts, Dai O'Connor, Nessa E. |
author_sort |
Zwerschke, Nadescha |
title |
Co-occurrence of native Ostrea edulisand non-native Crassostrea gigasrevealed by monitoring of intertidal oyster populations |
title_short |
Co-occurrence of native Ostrea edulisand non-native Crassostrea gigasrevealed by monitoring of intertidal oyster populations |
title_full |
Co-occurrence of native Ostrea edulisand non-native Crassostrea gigasrevealed by monitoring of intertidal oyster populations |
title_fullStr |
Co-occurrence of native Ostrea edulisand non-native Crassostrea gigasrevealed by monitoring of intertidal oyster populations |
title_full_unstemmed |
Co-occurrence of native Ostrea edulisand non-native Crassostrea gigasrevealed by monitoring of intertidal oyster populations |
title_sort |
co-occurrence of native ostrea edulisand non-native crassostrea gigasrevealed by monitoring of intertidal oyster populations |
publisher |
Cambridge University Press (CUP) |
publishDate |
2017 |
url |
http://dx.doi.org/10.1017/s0025315417001448 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315417001448 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Journal of the Marine Biological Association of the United Kingdom volume 98, issue 8, page 2029-2038 ISSN 0025-3154 1469-7769 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0025315417001448 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
98 |
container_issue |
8 |
container_start_page |
2029 |
op_container_end_page |
2038 |
_version_ |
1810440785523376128 |