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HYPER-NUTRIFICATION

Definition

Usually a condition resulting from the release of nutrients to an aquatic water body (e.g. through the release of excreted metabolites from fish cages) which does not lead, however, to eutrophication. There are several reasons why elevated nutrient concentrations may occur without causing eutrophication, e.g., (a) too short a retention time (high tidal flushing with subsequent dilution) so that phyto-plankton cannot profit from short-term exposure to the concentrations, or (b) other nutrients or trace elements (e.g. silica) are at a minimum, not allowing the algal community to utilize the released nutrients.

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