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Assessing movement of the California sea cucumber Parastichopus californicus in response to organically enriched areas typical of aquaculture sites

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Date
2016
Author
Van Dam-Bates, Paul
Curtis, Daniel L.
Cowen, Laura L. E.
Cross, Stephen F.
Pearce, Christopher M.
Keywords
Aquaculture
California sea cucumber
Foraging
Movement
Parastichopus californicus
Sea ranching
Holothurian
QA Mathematics
QH301 Biology
SH Aquaculture. Fisheries. Angling
NDAS
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Abstract
An increasing global demand for sea cucumbers has led to interest in benthic ranching of the California sea cucumber Parastichopus californicus beneath existing aquaculture sites in British Columbia, Canada, where high levels of total organic matter (TOM) are typical. The objective of the present study was to investigate movement of P. californicus in relation to areas of increased organic content to assess the feasibility of sea cucumber ranching beneath existing aquaculture sites. A laboratory experiment using adult sea cucumbers showed that P. californicus changed their foraging behaviour based on available amounts of TOM, moving more randomly in high-TOM (~8.0%) areas and more directly in low-TOM (~1.4%) ones. They also moved more rapidly in areas with high TOM than in those with low TOM. As long as animals were exposed to high TOM, they did not abandon random movement. Because of this behaviour, aquaculture tenures may retain a population of cultured individuals, but could also attract wild individuals from the surrounding area.
Citation
Van Dam-Bates , P , Curtis , D L , Cowen , L L E , Cross , S F & Pearce , C M 2016 , ' Assessing movement of the California sea cucumber Parastichopus californicus in response to organically enriched areas typical of aquaculture sites ' , Aquaculture Environment Interactions , vol. 8 , pp. 67-76 . https://doi.org/10.3354/aei00156
Publication
Aquaculture Environment Interactions
Status
Peer reviewed
DOI
https://doi.org/10.3354/aei00156
ISSN
1869-215X
Type
Journal article
Rights
© Fisheries and Oceans Canada 2016. Open Access under Creative Commons by Attribution Licence. Use, distribution and reproduction are unrestricted. Authors and original publication must be credited.
Description
Funding was provided by Fisheries and Oceans Canada’s Aquaculture Collaborative Research and Development Program, Viking Bay Ventures and the Klahoose Shellfish Limited Partnership.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/17931

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