Russian Journal of Ecology, Vol. 32, No. 6, 2001, pp. 444–446. Translated from Ekologiya, No. 6, 2001, pp. 478–480. Original Russian Text Copyright © 2001 by Il’yashuk. SHORT COMMUNICATIONS Ferromanganese Nodules in Lake Sediments as a Limiting Factor in the Development of Zoobenthic Communities B. P. Il’yashuk Institute of Industrial Ecology of the North, Kola Research Center, Russian Academy of Sciences, ul. Fersmana 14, Apatity, Murmansk oblast, 184200 Russia Received December 12, 1999 Key words: ferromanganese nodules, zoobenthos, bottom sediments, diagenesis. Water bodies in which ferromanganese nodules diagenetic formations—the result of natural processes (FMN) are formed in bottom sediments have received occurring in a lake—can also be responsible for the much attention from researchers but, in most cases, suppressed development of zoobenthic communities. only as the sources of iron ore for the mining industry. In Lake Kuito (Karelia), for example, Gerd (1935) Such ore-bearing formations are fairly common in dif- described a large ferromanganese ore-bearing area that ferent regions of the World Ocean (Strakhov, 1968) and occupied approximately 70% of the deep-water zone in continental freshwater bodies, such as Lake Baikal and was characterized by extremely low indices of (Leibovich-Granina, 1986), Lake Onega (Vasil’eva, benthos biomass: among invertebrates, only
Russian Journal of Ecology – Springer Journals
Published: Oct 9, 2004
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