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dc.contributor.authorKottuparambil, Sreejith
dc.contributor.authorAgusti, Susana
dc.date.accessioned2018-05-02T06:04:33Z
dc.date.available2018-05-02T06:04:33Z
dc.date.issued2018-04-25
dc.identifier.citationKottuparambil S, Agusti S (2018) PAHs sensitivity of picophytoplankton populations in the Red Sea. Environmental Pollution 239: 607–616. Available: http://dx.doi.org/10.1016/j.envpol.2018.04.079.
dc.identifier.issn0269-7491
dc.identifier.pmid29704673
dc.identifier.doi10.1016/j.envpol.2018.04.079
dc.identifier.urihttp://hdl.handle.net/10754/627739
dc.description.abstractIn this study, we investigated the in situ responses of Red Sea picophytoplankton, the dominant phytoplankton group in the oligotrophic ocean, to two toxic polycyclic aromatic hydrocarbons (PAHs), phenanthrene and pyrene. The experiments were conducted across a latitudinal gradient of the Saudi Arabian Red Sea, an area sensitive to oil pollution. We observed significant adverse effects on the growth and abundance of the picocyanobacteria Synechococcus and picoeukaryotes, at all stations sampled. Prochlorococcus, which was abundant only at one of the stations, also appeared to be affected. Pyrene was found to be more toxic to phytoplankton at all stations. In general, picoeukaryotes exhibited higher sensitivity to PAHs than Synechococcus. Populations in the highly oligotrophic Northern region of the Red Sea were more tolerant to PAHs, presumably influenced by the natural selection of more resistant strains of phytoplankton due to the prolonged exposure to PAHs. Toxicity threshold values estimated here are higher than those reported for picophytoplankton from other oligotrophic marine waters and exceed by far the natural levels of PAHs in many oceans. Our findings reveal a possible adaptation of picophytoplankton populations to oil-related contaminants, which may clearly influence their spatial distribution patterns in the Red Sea.
dc.description.sponsorshipThis work was supported by the King Abdullah University of Science and Technology (KAUST). We are grateful to the Coastal and Marine Resources Core Lab (CMOR), KAUST and the R/V Thuwal crew for their help during the sampling procedures.
dc.publisherElsevier BV
dc.relation.urlhttps://www.sciencedirect.com/science/article/pii/S0269749118305463
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Environmental Pollution. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Environmental Pollution, [, , (2018-04-25)] DOI: 10.1016/j.envpol.2018.04.079 . © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectPAHs
dc.subjectPhenanthrene
dc.subjectPyrene
dc.subjectLC10
dc.subjectSynechococcus
dc.subjectRed Sea
dc.titlePAHs sensitivity of picophytoplankton populations in the Red Sea
dc.typeArticle
dc.contributor.departmentRed Sea Research Center (RSRC)
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentMarine Science Program
dc.identifier.journalEnvironmental Pollution
dc.eprint.versionPost-print
kaust.personKottuparambil, Sreejith
kaust.personAgusti, Susana
refterms.dateFOA2020-04-25T00:00:00Z
dc.date.published-online2018-04-25
dc.date.published-print2018-08


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