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A small step or a giant leap : accounting for settlement delay and dispersal in restoration planning

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Rodriguez_Perez_2021_PLoS_one_small_step_CC.pdf (1.337Mb)
Date
18/08/2021
Author
Rodriguez-Perez, Ana
James, Mark A
Sanderson, William G
Keywords
GC Oceanography
QH301 Biology
NDAS
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Abstract
Understanding larval duration and hence dispersal potential of the European oyster Ostrea edulis is crucial to inform restoration strategies. Laval duration has an obligatory period of maturity to pediveliger (when larvae are ready to settle), but also an unknown period until metamorphosis is triggered by a settlement cue. The extent to which larvae can prolong the pediveliger period and delay metamorphosis has not been studied. Here we show that O. edulis larvae can delay metamorphosis for a period of 11 days, while retaining the capability to settle in high proportions when presented with a suitable settlement cue. O. edulis larvae are likely to be able to delay metamorphosis even further, since 80% of larvae in the control treatment were still alive when the experiment was terminated at day 14. The results indicate the ability of O. edulis larvae to more than double pelagic duration and probably further delay metamorphosis. We discuss these findings in the context of larval mortality, and the importance of O. edulis' larval settlement requirements for dispersal potential, recruitment success and connectivity of restoration sites.
Citation
Rodriguez-Perez , A , James , M A & Sanderson , W G 2021 , ' A small step or a giant leap : accounting for settlement delay and dispersal in restoration planning ' , PLoS ONE , vol. 16 , no. 8 , e0256369 . https://doi.org/10.1371/journal.pone.0256369
Publication
PLoS ONE
Status
Peer reviewed
DOI
https://doi.org/10.1371/journal.pone.0256369
ISSN
1932-6203
Type
Journal article
Rights
Copyright: © 2021 Rodriguez-Perez et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Description
Funding: The project was funded by the Nesbit Cleland Trust (St Abbs Marine Station), Royal Haskoning DHV, Nature Scotland and the MASTS pooling initiative (the Marine Alliance for Science and Technology for Scotland). MASTS is funded by the Scottish Funding Council (grant reference HR09011).
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/23874

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