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AuthorCharifi, Mohcine
AuthorKhalifa, Razan
AuthorGiraldes, Bruno W.
AuthorSow, Mohamedou
AuthorHizam, Zainab
AuthorCarrara, Mathieu
AuthorManeux, Eric
AuthorHamza, Shafeeq
AuthorBassères, Anne
AuthorBlanc, Philippe
AuthorLeitão, Alexandra
AuthorMassabuau, Jean-Charles
Available date2024-06-25T08:45:43Z
Publication Date2023
Publication NameFrontiers in Marine Science
ResourceScopus
Identifierhttp://dx.doi.org/10.3389/fmars.2023.1251011
ISSN22967745
URIhttp://hdl.handle.net/10576/56227
AbstractThe pearl oyster Pinctada radiata is an iconic species in the Arabian Gulf, which is one of the ecosystems most at risk in the world because of the multiple sources of pollution it faces. Alongside chemical pollution, the Gulf is ranked first with regard to noise and light pollution, and pearl oyster populations are at risk. The impact of these latter types of pollution on marine invertebrates is still poorly known. We used the difference in noise and brightness that can exist between a very quiet room without artificial lighting and a standard laboratory room equipped with a standard aquarium as a testbed to explore the possible impact of noise and light pollution on the behavioral and biological traits of Pinctada radiata without added chemical exposure. During an experiment that lasted 2.5 months, we analyzed their grouping behavior, valve activity, biological rhythm, growth rate and spawning activity. In the standard aquarium kept in the laboratory room, the oysters dispersed instead of regrouping as in their natural environment, regrouping which was observed in the quiet room. They stayed closed longer, the opening amplitude of their valves was systematically lower, and in the closed position, they squeezed their valves more tightly when subjected to noise and light pollution. Their daily opening rhythm was strongly structured by switching the electric light on and off, and females showed significantly less egg-laying behavior. In conclusion, seemingly innocuous human activities can lead to very significant alterations in pearl oyster behavior. We propose that it could have significant effects on populations and ecosystems.
SponsorThis publication was made possible by the NPRP award [NPRP11S-0115-180308 "Innovative In situ Biotechnology for Continuous Water Quality Monitoring on the Qatari Marine Environment"] from the Qatar National Research Fund (a member of Qatar Foundation). The authors declare that this study also received funding from TotalEnergies E&P QATAR. The funder was not involved in the study design, collection, analysis, interpretation of data, the writing of this article. It was involved in the decision to submit it for publication. Acknowledgments
Languageen
PublisherFrontiers Media SA
SubjectArabian Gulf
HFNI
light pollution
noise pollution
pearl oyster
reproductive behavior
spawning
TitleDeep behavioral impairment in the pearl oyster Pinctada radiata exposed to anthropogenic noise and light stress
TypeArticle
Volume Number10
dc.accessType Open Access


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