Arid
DOI10.1111/j.1574-6941.2005.00019.x
Seasonal seawater temperature as the major determinant for populations of culturable bacteria in the sediments of an intact mangrove in an arid region
Gonzalez-Acosta, B; Bashan, Y; Hernandez-Saavedra, NY; Ascencio, F; De la Cruz-Aguero, G
通讯作者Bashan, Y
来源期刊FEMS MICROBIOLOGY ECOLOGY
ISSN0168-6496
EISSN1574-6941
出版年2006
卷号55期号:2页码:311-321
英文摘要

Mangroves are highly productive marine ecosystems where bacteria (culturable and nonculturable) actively participate in biomineralization of organic matter and biotransformation of minerals. This study explores spatial and seasonal fluctuations of culturable heterotrophic bacteria and Vibrio spp. in the sediments of an intact mangrove ecosystem and determines the dominant environmental factors that govern these fluctuations. Sediment samples were collected monthly from three stations in the mangroves of Laguna de Balandra, Baja California Sur, Mexico, through an annual cycle. Physicochemical parameters included seawater temperature, salinity, and concentration of dissolved oxygen. Viable counts of culturable heterotrophic bacteria and Vibrio spp. were made. In one sample (March 2003), nutrient concentrations (ammonium, nitrites, nitrates, and phosphates), organic matter, pH and sediment texture were also determined. General cluster analyses, analysis of variance of specific variables, and several principal component analyses demonstrated that seawater temperature is the principal determinant of seasonal distribution of culturable heterotrophic bacteria and Vibrio spp. in mangrove sediments. Soil texture, concentration of nutrients, and organic matter concentration contribute to heterogenicity to a lesser extent. A large spatial variation in bacterial populations was observed over short distances (similar to 1 m) in sampling areas within the same site. These analyses show that the culturable bacterial distribution in sediments of mangroves has high spatial and temporal heterogeneity.


英文关键词bacterial biotransformation bacteria population dynamics mangrove sediments
类型Article
语种英语
国家Mexico
收录类别SCI-E
WOS记录号WOS:000234983100014
WOS关键词ORGANIC-MATTER ; VIBRIO-PARAHAEMOLYTICUS ; MARINE ENVIRONMENTS ; MICROBIAL BIOMASS ; COASTAL LAGOON ; SOIL ; RHIZOSPHERE ; AZOSPIRILLUM ; MICROORGANISMS ; PRODUCTIVITY
WOS类目Microbiology
WOS研究方向Microbiology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/151383
作者单位(1)Ctr Invest Biol Noroeste, Environm Microbiol Grp, La Paz, Mexico;(2)IPN, CICIMAR, Ctr Interdisciplinario Ciencias Marinas, La Paz, Mexico
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Gonzalez-Acosta, B,Bashan, Y,Hernandez-Saavedra, NY,et al. Seasonal seawater temperature as the major determinant for populations of culturable bacteria in the sediments of an intact mangrove in an arid region[J],2006,55(2):311-321.
APA Gonzalez-Acosta, B,Bashan, Y,Hernandez-Saavedra, NY,Ascencio, F,&De la Cruz-Aguero, G.(2006).Seasonal seawater temperature as the major determinant for populations of culturable bacteria in the sediments of an intact mangrove in an arid region.FEMS MICROBIOLOGY ECOLOGY,55(2),311-321.
MLA Gonzalez-Acosta, B,et al."Seasonal seawater temperature as the major determinant for populations of culturable bacteria in the sediments of an intact mangrove in an arid region".FEMS MICROBIOLOGY ECOLOGY 55.2(2006):311-321.
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