Ecological risk potentials of petroleum hydrocarbons and heavy metals shape the bacterial communities of marine hydrosphere at Atlantic Ocean, Atlas Cove, Nigeria

Simple item page
dc.contributor.authorOyetibo, G.O
dc.contributor.authorIge, O.O
dc.contributor.authorObinani, P.K
dc.contributor.authorAmund, O.O
dc.date.accessioned2021-04-15T14:53:18Z
dc.date.available2021-04-15T14:53:18Z
dc.date.issued2021
dc.descriptionScholarly articlesen_US
dc.description.abstractTrans-Atlantic voyage of petroleum often leads to marine pollution with petroleum hydrocarbons (PHs) and heavy metals (HMs) that defines structures of autochthonous bacteria in the hydrosphere. Bacterial taxa of marine sediments exposed to petroleum transport activities were profiled using 16S rDNA metagenomics and correlated with the geochemistry to establish their impact on the microbiome. The physico-chemistry of the marine systems revealed varied degrees of contamination with PHs and HMs exceeding recommended threshold for aquatic life. Ecological risk assessment based on organic carbon of the sediment established phenanthrene, anthracene, and pyrene posed high risks (index risk quotient >32) to marine life. The most dominant phylum of the 44 bacterial phyla in the marine-sphere was Proteobacteria with relative abundance of 45–77% in the sampling locations. Relative dominance of Proteobacteria in the sediments spanned Gammaproteobacteria (17–25%), Deltaproteobacteria (12–20%), and Alphaproteobacteria (7–14%). Whereas, more operational taxonomic units (OTUs) belonging to Epsilonproteobacteria (19 ±2.4%) were found in estuarine sediment unlike <0.5% relative abundances obtained from oceanic sediments. Sulfurimonas apparently dominated the bacterial genera with up to 2.16 ±0.19% abundance in oceanic sediments. Canonical correspondence analysis revealed that PHs shaped the structure of bacterial OTUs in oceanic sediments where petroleum loading/offloading occurs unlike in some kilometres a yonder where HMs correlated with the bacteria structure. The dominant bacteria might possibly pivotal to ecophysiologies of hydrocarbon contaminated marine environment, and would be pertinent to biotechnological applications for possible bioremediation campaign.en_US
dc.identifier.citationOyetibo, G.O Ige, O.O Obinani, P.K Amund, O.O. (2021). Ecological risk potentials of petroleum hydrocarbons and heavy metals shape the bacterial communities of marine hydrosphere at Atlantic Ocean, Atlas Cove, Nigeria. Journal of Environmental Management, 289en_US
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0301479721006253
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/9301
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofseriesJournal of Environmental Management;289
dc.subjectAtlantic oceanen_US
dc.subjectPetroleumen_US
dc.subjectBacterial communityen_US
dc.subjectPollutionen_US
dc.subjectEcological risken_US
dc.subjectResearch Subject Categories::NATURAL SCIENCESen_US
dc.titleEcological risk potentials of petroleum hydrocarbons and heavy metals shape the bacterial communities of marine hydrosphere at Atlantic Ocean, Atlas Cove, Nigeriaen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Ecological risk potentials of petroleum hydrocarbons and heavy metals shape the bacterial communities of marine hydrosphere at Atlantic Ocean, Atlas Cove, Nigeria.pdf
Size:
1.54 MB
Format:
Adobe Portable Document Format
Description:
Full Texts
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Microbiology -Scholarly Publications