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AuthorGiraldes, Bruno Welter
AuthorLeitão, Alexandra
AuthorSmyth, David
Available date2019-08-28T05:31:43Z
Publication Date2019-05-01
Publication NamePLoS ONEen_US
Identifierhttp://dx.doi.org/10.1371/journal.pone.0215865
CitationGiraldes BW, Leitão A, Smyth D (2019) The benthic sea-silk-thread displacement of a sessile bivalve, Pinctada imbricata radiata (Leach, 1819) in the Arabian-Persian Gulf. PLoS ONE 14(5): e0215865. https://doi.org/10.1371/journal.pone.0215865
URIhttp://hdl.handle.net/10576/11740
AbstractA number of molluscs within the Class Bivalvia are defined by their ability to secrete fine silk like threads known as byssus which are used to anchor themselves to solid substrates. With relatively few exceptions the majority of these species remain in a sedentary state throughout their life attached via their byssal threads. However, observations of adult Pinctada imbricata radiata pearl oysters made during this study revealed this species’ ability to implement active movement. Byssal threads were secreted in a sequence of attachment and detachment phases, which resulted in the active displacement of the oyster. The oyster was observed, in the laboratory over a 9 day period, travelling a distance of 28cm in a horizontal path. After horizontal displacement, a vertical climbing phase was observed until the oyster reached the water surface at which point the byssus was discarded and the animal dropped, drifting in accordance with water current intensity. It is possible that these adaptations of byssal use are a result of environmentally induced evolutionary change within P. i. radiata.
SponsorThis work was funded by an award to Alexandra Leitão. This publication was made possible by the NPRP award [NPRP9-394-1-090 “The Pearl Oyster: from national icon to guardian of Qatar’s marine environment”] from the Qatar National Research Fund (a member of Qatar Foundation). The findings herein reflect the work and are solely the responsibility of the authors.
Languageen
PublisherPublic Library of Science
SubjectOysters
SubjectMalacology
SubjectBivalves
SubjectAlgae
SubjectClimbing
SubjectPearls
SubjectSecretion
SubjectEvolutionary adaptation
TitleThe benthic sea-silk-thread displacement of a sessile bivalve, Pinctada imbricata radiata (Leach, 1819) in the Arabian-Persian Gulf
TypeArticle
Issue Number5
Volume Number14
ESSN1932-6203


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