A study of the distribution, abundance and activity of nitrifying bacteria in the Tees Estuary, north-east England is described. The investigation comprised field sampling and laboratory experimentation. It was carried out to improve understanding of the factors controlling nitrification in the Tees in order to facilitate better simulation of this process in a two-dimensional (in-depth) mathematical model of water quality in the estuary.The observed distribution, abundance and activity of nitrifying bacteria could be explained in terms of the interaction between pollutant inputs and hydrodynamic regime and the resultant effects on water quality. Nitrification occurred throughout the estuary, but was severely restricted in the surface waters of the middle reach where unfavourable conditions appeared to inhibit bacterial activity without necessarily exerting a lethal effect.The findings of the study improved the ability of the mathematical model to simulate dissolved oxygen levels in the Tees Estuary.
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- The Distribution, Extent and Significance of Nitrification in the Tees Estuary, North-East England
A. S. Nottage
T. H. Birkbeck
- Springer Netherlands