The effect of water movement on the distribution of Oligochaeta in lakes |
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Authors: | T. D. Slepukhina |
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Affiliation: | (1) Institute of Lake Research, Russian Academy of Sciences, ull. Sevastjanova 9, 196199 St. Petersburg, Russia |
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Abstract: | The Oligochaeta are more exposed to disturbance under conditions of intense water movement than other invertebrates, particularly when the substrate is unstable. Furthermore, low mobility of bottom water, which can lead to excessive accumulation of organic matter in sediments, and to the formation of sapropel, can also be limiting to the distribution of oligochaetes. Organic contamination in conditions of low water dynamics can result in the absence of Oligochaeta through oxygen depletion. Dynamic water movement can stimulate the mass development of Oligochaeta in organically polluted areas. |
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Keywords: | Oligochaeta large lakes wind and wave effects |
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