Studies on Nitrification in Aquatic Sediments

Studies on Nitrification in Aquatic Sediments


Marketed By :  VDM Verlag Dr. Müller   Sold By :  Kamal Books International  
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  • Product Description
Nitrification is an important biogeochemical pathway in the oxic layer of aquatic sediments. The nitrifying bacteria accomplishing this process have been subject to numerous autecological studies before, but rarely they have been regarded as part of food webs, in which they have to compete with other organisms for nutrients and substrates and in which they are prey to other organisms. The impact of bacterial grazers, esp. ciliates, in marine and freshwater sediments was investigated. The effect of ciliates and an omnivorous polychaete was studied in laboratory flume experiments with natural sediments and in in vitro experiments. The results indicate that increased ciliate abundances led to higher abundances of nitrifying bacteria and nitrification rates. The presence of polychaetes led to changes in the community structure of nitrifying bacteria. An additional study reviewed the widely used settling method for the enrichment of fixed ciliate cells from plankton samples. Ciliate settling times were determined empirically and theoretical sinking velocities were calculated. The results revealed that the sinking velocity is much higher than assumed.
Product Specifications
SKU :COC13566
Country of ManufactureIndia
Product BrandVDM Verlag Dr. Müller
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-07-23
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