✦ LIBER ✦

Seasonal and Spatial Distribution of Iron Precipitating Heterotrophs in Water and Sediments of Fish Ponds of Differing Farming Managements

✍ Scribed by B. B. Jana; G. N. Patel

Publisher: John Wiley and Sons
Year: 1986
Tongue: English
Weight: 606 KB
Volume: 71
Category: Article
ISSN: 1434-2944
DOI: 10.1002/iroh.19860710213

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✦ Synopsis

Population densities of primarily iron precipitating heterotrophs (metal-precipitating non oxidizing bacteria) were estimated in water and sediments of ponds being used for polyculture, monoculture and traditional systems of fish farming over a period of two and a half years. Spatial differences in microbial density in the ponds were related to the organic loading of the farm site and the type of farming. The highest bacterial populations occurred in November and tQe lowest in summer. Nitrite concentration was mainly responsible for such seasonal changes.

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