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Relationships between bacterial diversity and environmental variables in a tropical marine environment, Rio de Janeiro
Author(s) -
Vieira Ricardo P.,
Gonzalez Alessandra M.,
Cardoso Alexander M.,
Oliveira Denise N.,
Albano Rodolpho M.,
Clementino Maysa M.,
Martins Orlando B.,
Paranhos Rodolfo
Publication year - 2008
Publication title -
environmental microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.954
H-Index - 188
eISSN - 1462-2920
pISSN - 1462-2912
DOI - 10.1111/j.1462-2920.2007.01443.x
Subject(s) - bay , biology , trophic level , ecology , bacterioplankton , tropical marine climate , transect , species richness , abiotic component , ecosystem , estuary , biodiversity , oceanography , phytoplankton , nutrient , geology
Summary This study is the first to apply a comparative analysis of environmental chemistry, microbiological parameters and bacterioplankton 16S rRNA clone libraries from different areas of a 50 km transect along a trophic gradient in the tropical Guanabara Bay ecosystem. Higher bacterial diversity was found in the coastal area, whereas lower richness was observed in the more polluted inner bay water. The significance of differences between clone libraries was examined with libshuff statistics. Paired reciprocal comparisons indicated that each of the libraries differs significantly from the others, and this is in agreement with direct interpretation of the phylogenetic tree. Furthermore, correspondence analyses showed that some taxa are related to specific abiotic, trophic and microbiological parameters in Guanabara Bay estuarine system.