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Results for “HYDROBIOLOGY”

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At least 19 recordsLinked to original sources
PubMed1985

Serotypes of Vibrio parahaemolyticus isolates from hydrobiologically dissimilar aquatic environments.

Serological analysis of the O and K antigens was performed on 324 isolates of Vibrio parahaemolyticus obtained from three hydrobiologically dissimilar aquatic environments. Only 50.9% of the strains could be serotyped. The largest number of untypable strains and the lowest serological diversity were observed from the freshwater collection. Three serotypes, O2:K28, O5:K17, and O2:K3, dominated among all biotopes. There appears to be some distinction between serotypes of environmental and clinical origins.

Fresh Water↗
PubMed2003

Hydrobiological study of lake Mirik in Darjeeling Himalayas.

Some hydrobiological features of lake Mirik, situated in the Darjeeling Himalayas were studied during May to October, 2000. Water temperature showed abrupt fluctuations. The pH was generally acidic. Dissolved oxygen increased steadily with increasing rainfall and recorded highest in late August (12.6 mgl(-1)). The gross primary productivity had a highest value of 87.50 mg C m(-3) hr(-1). Chlorophyceae and Cyanophyceae were identified among phytoplanktons. Zooplanktons were represented by Cladocerans and Copepods. The study revealed higher concentration of nutrients at certain pockets of the lake, which points to increasing human influences in the system, and, the water cannot serve as a scarcity alternative for drinking purpose.

Animals↗
PubMed1976

Valuation of characteristics of water purity. IV. Classification of pollution of waters based on norms of microbiological, hydrobiological and chemical characteristics determined by numerical methods.

Norms of microbiological (coliform titre, nitrification titre, urea hydrolysis titre, number of bacteria, BOD2 and BOD5), hydrobiological (intensity of photosynthesis, saprobic index, number of algae) and chemical (oxidability, DMDT content) characteristics, determining the ecological quality of water, are suggested. Their taxonomic value has been appraised with the use of numerical methods: centrifugal correlation and principle components, used for the classification of a collection of sites with respect to pollution.

Bacteria↗