Long-term coexistence of non-indigenous species in aquaculture facilities

Rius, Marc, Heasman, Kevin G. and McQuaid, Christopher D. (2011) Long-term coexistence of non-indigenous species in aquaculture facilities Marine Pollution Bulletin, 62, (11), pp. 2395-2403. (doi:10.1016/j.marpolbul.2011.08.030).


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Non-indigenous species (NIS) are a growing problem globally and, in the sea, aquaculture activities are critical vectors for their introduction. Aquaculture introduces NIS, intentionally or unintentionally, and can provide substratum for the establishment of other NIS. Little is known about the co-occurrence of NIS over long periods and we document the coexistence over decades of a farmed NIS (a mussel) with an accidently introduced species (an ascidian). Both are widespread and cause serious fouling problems worldwide. We found partial habitat segregation across depth and the position of rafts within the studied farm, which suggests competitive exclusion of the mussel in dark, sheltered areas and physiological exclusion of the ascidian elsewhere. Both species exhibit massive self-recruitment, with negative effects on the industry, but critically the introduction of NIS through aquaculture facilities also has strong detrimental effects on the natural environment.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/j.marpolbul.2011.08.030
ISSNs: 0025-326X (print)
Keywords: fouling, invasive species, facilitation, ciona intestinalis, mytilus galloprovincialis, south africa
Subjects: G Geography. Anthropology. Recreation > GC Oceanography
Q Science > QH Natural history > QH301 Biology
Organisations: Ocean Biochemistry & Ecosystems
ePrint ID: 354672
Date :
Date Event
November 2011Published
Date Deposited: 17 Jul 2013 10:51
Last Modified: 17 Apr 2017 15:14
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/354672

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