DOI: 10.1016/j.marpolbul.2014.10.028
Scopus记录号: 2-s2.0-84924591343
论文题名: Microbial activity in surface sediments of Chacopata-Bocaripo lagoon axis, Sucre State, Venezuela
作者: Segnini de B M.I. ; Gómez I. ; Brito L. ; Acosta V. ; Troccoli L.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2015
卷: 91, 期: 2 起始页码: 483
结束页码: 490
语种: 英语
英文关键词: Chacopata-Bocaripo-Venezuela
; Microbiological parameters
; Sediments
Scopus关键词: 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
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: 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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86224
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: 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)