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https://hdl.handle.net/10216/120345
Author(s): | Gouveia V. Almeida C.M.R. Almeida T. Teixeira C. Mucha A.P. |
Title: | Indigenous microbial communities along the NW Portuguese Coast: Potential for hydrocarbons degradation and relation with sediment contamination |
Publisher: | Elsevier |
Issue Date: | 2018 |
Abstract: | Hydrocarbon degradation (HD) potential by autochthonous microorganisms in the coastal sediments of the NW area of Portugal (coastal sandy beaches and estuaries of the rivers Minho and Douro) was evaluated, investigating if water and sediment contamination/characteristics influence it. Sediments were characterized for microbial abundance (by DAPI), HD microorganisms' abundance (by MPN), microbial community structure (by ARISA), hydrocarbons (by FTIR and SPME-GC-MS), hazardous and noxious substances (SPME-GC-MS) and metals (by AAS). To our knowledge, this is the first time all these pollutants, including the selected HNS, were measured simultaneously in sediments of the selected coastal area. Higher contaminants concentrations were, generally, registered in Douro samples. A clear differentiation of the microbial community structure between beaches and estuaries was observed, as well as, between Douro and Minho river estuaries. BIO-ENV analysis indicated both sediment characteristics (e.g. OM content) and contaminants presence/concentrations (e.g. tetrachloroethylene presence) affected the structure of the microbial community along the studied areas. In all the selected sites, the characterized autochthonous microbial communities showed potential for hydrocarbons degradation, with HD microorganisms being found in all collected sediments. These microorganisms can be a valuable asset to recover contaminated areas, but sediment characteristics and contaminants presence/levels need to be taken into account as they can affect their bioremediation potential and the success of their application as biotechnological tool. © 2018 Elsevier |
Subject: | Beaches Biodegradation Bioremediation Biotechnology Contamination Estuaries Hydrocarbons Sediments Water treatment Autochthonous microorganisms Bioremediation potentials Coastal beaches Hydrocarbon degradation Microbial communities Microbial community structures Sediment characteristic Sediment contamination Microorganisms 1,1,1 trichloroethane 1,1,2 trichloroethane 1,2 dichlorobenzene 1,2 dichloroethane 1,3 dichlorobenzene 1,4 dichlorobenzene acenaphthene acenaphthylene anthracene benzene benzo[a]pyrene benzo[b]fluoranthene carbon tetrachloride chlorobenzene chloroform ethylbenzene fluoranthene fluorene meta xylene naphthalene ortho xylene para xylene phenanthrene polycyclic aromatic hydrocarbon derivative pyrene styrene tetrachloroethylene toluene trichloroethylene hydrocarbon metal biodegradation coastal sediment coastal zone community structure estuarine ecosystem hydrocarbon microbial community sediment pollution Article community structure concentration (parameters) controlled study degradation hydrocarbon degradation microbial community nonhuman Portugal sea pollution sediment analysis bioremediation chemistry estuary feces genetics infrared spectroscopy mass fragmentography metabolism microbial consortium microbiology physiology river water pollutant Douro Estuary Minho Estuary Porto [Portugal] Portugal Biodegradation, Environmental Estuaries Feces Gas Chromatography-Mass Spectrometry Geologic Sediments Hydrocarbons Metals Microbial Consortia Portugal Rivers Spectroscopy, Fourier Transform Infrared Water Pollutants, Chemical |
URI: | https://hdl.handle.net/10216/120345 |
Source: | Marine Pollution Bulletin, vol. 131, p. 620-632 |
Related Information: | info:eu-repo/grantAgreement/FCT/5876/147268/PT |
Document Type: | Artigo em Revista Científica Internacional |
Rights: | restrictedAccess |
Appears in Collections: | CIIMAR - Artigo em Revista Científica Internacional |
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Gouveia V_2018.pdf Restricted Access | 1.25 MB | Adobe PDF | Request a copy |
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