globalchange  > 过去全球变化的重建
DOI: 10.1016/j.marpolbul.2014.10.028
Scopus ID: 2-s2.0-84924591343
Microbial activity in surface sediments of Chacopata-Bocaripo lagoon axis, Sucre State, Venezuela
Author: Segnini de B M.I.; Gómez I.; Brito L.; Acosta V.; Troccoli L.
Source Publication: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
Publishing Year: 2015
Volume: 91, Issue:2
pages begin: 483
pages end: 490
Language: 英语
Keyword: Chacopata-Bocaripo-Venezuela ; Microbiological parameters ; Sediments
Scopus Keyword: Amino acids ; Lakes ; Organic carbon ; Quality control ; Submarine geology ; Surficial sediments ; Biochemical parameters ; Dehydrogenase activity ; Fluorescein diacetate ; Micro-biological parameters ; Microbial activities ; Surface sediments ; Total Organic Carbon ; Venezuela ; Sediments ; arginine ; fluorescein diacetate ; oxidoreductase ; phosphatase ; urease ; 3',6'-diacetylfluorescein ; carbon ; fluorescein derivative ; biogeochemistry ; enzyme activity ; marine sediment ; microbial activity ; microbiology ; nutrient cycling ; sediment chemistry ; total organic carbon ; ammonification ; Article ; concentration (parameters) ; enzyme activity ; hydrolysis ; lagoon ; microbial activity ; microbial biomass ; nonhuman ; seasonal variation ; sediment ; total organic carbon ; Venezuela ; biomass ; chemistry ; metabolism ; microbiology ; season ; sediment ; Chacopata Lagoon ; Sucre [Venezuela] ; Venezuela ; Biomass ; Carbon ; Fluoresceins ; Geologic Sediments ; Hydrolysis ; Phosphoric Monoester Hydrolases ; Seasons ; Urease ; Venezuela ; Water Microbiology
Subject of Scopus: Agricultural and Biological Sciences: Aquatic Science ; Earth and Planetary Sciences: Oceanography ; Environmental Science: Pollution
English Abstract: The aim of this work was to evaluate the microbial activity of the surface sediments (0-10cm) of the Chacopata-Bocaripo lagoon axis (Ch-BLA) through microbiological parameters: microbial biomass (Cmic) dehydrogenase activity (DHS), fluorescein diacetate hydrolysis (HFDA), arginine ammonification (AA) and biochemical parameters: phosphatase (PHa) and urease (URa) activity. They were determined during transition (July 2010) and upwelling (March 2011) periods. Total organic carbon (TOC) did not vary significantly (p≥0.05) between climatic periods. All the parameters studied were higher in upwelling season: Cmic (191.79mgCmickg-1), DHS (228.70μgTFFg-124h-1), HFDA (204.09μg fluoresceing-124h-1), AA (13.09μgNH4-Ng-1h-1), PHa (132.31μg pNFg-1h-1), URa (12.90μgNH4-Ng-1h-1). They appear to be controlled by the availability and quality of nutrients in each climatic period, and were useful tools for evaluating changes in microbial activity in marine sediments. © 2014 Elsevier Ltd.
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被引频次[WOS]:3   [查看WOS记录]     [查看WOS中相关记录]
Document Type: 期刊论文
Appears in Collections:过去全球变化的重建

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Affiliation: Departamento de Biologia Marina, Instituto Oceanografico de Venezuela, Universidad de Oriente, Nucleo de Sucre, Venezuela; Laboratorio de Investigaciones Biologicas, Departamento de Ciencias, Nucleo de Anzoategui, Universidad de Oriente, Venezuela; Departamento de Biologia, Escuela de Ciencias, Núcleo de Sucre, Universidad de Oriente, Venezuela; Instituto de Investigaciones Cientificas Boca de Rio, Nucleo de Nueva Esparta, Universidad de Oriente, Venezuela

Recommended Citation:
Segnini de B M.I.,Gómez I.,Brito L.,et al. Microbial activity in surface sediments of Chacopata-Bocaripo lagoon axis, Sucre State, Venezuela[J]. Marine Pollution Bulletin,2015-01-01,91(2)
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