Experimental assessment of oyster transfers as a vector for macroalgal introductions
Introduction of non-indigenous species can alter marine communities and ecosystems. In shellfish farming, transfer of livestock, especially oysters, is a common practice and potentially constitutes a pathway for non-indigenous introductions. Many species of seaweeds are believed to have been acciden...
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ftarchimer:oai:archimer.ifremer.fr:2779 2023-05-15T15:58:51+02:00 Experimental assessment of oyster transfers as a vector for macroalgal introductions Mineur, Frederic Belsher, Thomas Johnson, Mark P. Maggs, Christine A. Verlaque, Marc 2007-06 application/pdf https://archimer.ifremer.fr/doc/2007/publication-2779.pdf https://doi.org/10.1016/j.biocon.2007.02.001 https://archimer.ifremer.fr/doc/00000/2779/ eng eng Elsevier https://archimer.ifremer.fr/doc/2007/publication-2779.pdf doi:10.1016/j.biocon.2007.02.001 https://archimer.ifremer.fr/doc/00000/2779/ 2007 Elsevier Ltd All rights reserved. info:eu-repo/semantics/openAccess restricted use Biological Conservation (0006-3207) (Elsevier), 2007-06 , Vol. 137 , N. 2 , P. 237-247 Elimination treatments Transport Marine macrophytes Thau Lagoon Shells Crassostrea gigas Biological invasions text Publication info:eu-repo/semantics/article 2007 ftarchimer https://doi.org/10.1016/j.biocon.2007.02.001 2021-09-23T20:14:53Z Introduction of non-indigenous species can alter marine communities and ecosystems. In shellfish farming, transfer of livestock, especially oysters, is a common practice and potentially constitutes a pathway for non-indigenous introductions. Many species of seaweeds are believed to have been accidentally introduced in association with these transfers, but there is little direct evidence. We experimentally simulated the transfer of oysters from the Thau Lagoon (France). These transfers involved increasing periods of aerial emersion and additional brine and hot water treatments. The brine and hot water treatments were evaluated as a means of reducing the probability of algal introductions with oyster transfers. Shells were cultured for 40 days in experimental tanks to identify the macroalgae likely to be introduced with any oyster transfer. A total of 57 macroalgal taxa, including 16 taxa not indigenous to the Thau Lagoon, were recorded across all treatments and experiments. The abundance of some species increased in several cases following aerial emersion. Elimination treatments (immersion in brine or hot water) significantly reduced algal diversity, with hot water treatments resulting in no species or only tubular Ulva spp. present. The results support the hypothesis that oyster transfers are effective as primary and secondary vectors of macroalgal introductions. Relatively simple changes to the transfer practice (particularly hot water treatments) are suggested as a means of reducing the risk of non-indigenous algal introductions. Article in Journal/Newspaper Crassostrea gigas Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Biological Conservation 137 2 237 247 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Elimination treatments Transport Marine macrophytes Thau Lagoon Shells Crassostrea gigas Biological invasions |
spellingShingle |
Elimination treatments Transport Marine macrophytes Thau Lagoon Shells Crassostrea gigas Biological invasions Mineur, Frederic Belsher, Thomas Johnson, Mark P. Maggs, Christine A. Verlaque, Marc Experimental assessment of oyster transfers as a vector for macroalgal introductions |
topic_facet |
Elimination treatments Transport Marine macrophytes Thau Lagoon Shells Crassostrea gigas Biological invasions |
description |
Introduction of non-indigenous species can alter marine communities and ecosystems. In shellfish farming, transfer of livestock, especially oysters, is a common practice and potentially constitutes a pathway for non-indigenous introductions. Many species of seaweeds are believed to have been accidentally introduced in association with these transfers, but there is little direct evidence. We experimentally simulated the transfer of oysters from the Thau Lagoon (France). These transfers involved increasing periods of aerial emersion and additional brine and hot water treatments. The brine and hot water treatments were evaluated as a means of reducing the probability of algal introductions with oyster transfers. Shells were cultured for 40 days in experimental tanks to identify the macroalgae likely to be introduced with any oyster transfer. A total of 57 macroalgal taxa, including 16 taxa not indigenous to the Thau Lagoon, were recorded across all treatments and experiments. The abundance of some species increased in several cases following aerial emersion. Elimination treatments (immersion in brine or hot water) significantly reduced algal diversity, with hot water treatments resulting in no species or only tubular Ulva spp. present. The results support the hypothesis that oyster transfers are effective as primary and secondary vectors of macroalgal introductions. Relatively simple changes to the transfer practice (particularly hot water treatments) are suggested as a means of reducing the risk of non-indigenous algal introductions. |
format |
Article in Journal/Newspaper |
author |
Mineur, Frederic Belsher, Thomas Johnson, Mark P. Maggs, Christine A. Verlaque, Marc |
author_facet |
Mineur, Frederic Belsher, Thomas Johnson, Mark P. Maggs, Christine A. Verlaque, Marc |
author_sort |
Mineur, Frederic |
title |
Experimental assessment of oyster transfers as a vector for macroalgal introductions |
title_short |
Experimental assessment of oyster transfers as a vector for macroalgal introductions |
title_full |
Experimental assessment of oyster transfers as a vector for macroalgal introductions |
title_fullStr |
Experimental assessment of oyster transfers as a vector for macroalgal introductions |
title_full_unstemmed |
Experimental assessment of oyster transfers as a vector for macroalgal introductions |
title_sort |
experimental assessment of oyster transfers as a vector for macroalgal introductions |
publisher |
Elsevier |
publishDate |
2007 |
url |
https://archimer.ifremer.fr/doc/2007/publication-2779.pdf https://doi.org/10.1016/j.biocon.2007.02.001 https://archimer.ifremer.fr/doc/00000/2779/ |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Biological Conservation (0006-3207) (Elsevier), 2007-06 , Vol. 137 , N. 2 , P. 237-247 |
op_relation |
https://archimer.ifremer.fr/doc/2007/publication-2779.pdf doi:10.1016/j.biocon.2007.02.001 https://archimer.ifremer.fr/doc/00000/2779/ |
op_rights |
2007 Elsevier Ltd All rights reserved. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/j.biocon.2007.02.001 |
container_title |
Biological Conservation |
container_volume |
137 |
container_issue |
2 |
container_start_page |
237 |
op_container_end_page |
247 |
_version_ |
1766394627384934400 |