Titlebook: Aquatic Oligochaete Biology V; Proceedings of the 5 T. B. Reynoldson,K. A. Coates Conference proceedings 1994 Springer Science+Business Med

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Aquatic Oligochaeta of the Dnieper-Bug Estuary systemnt environmental factors in the Dnieper-Bug Estuary were salinity, discharge, water quality, trophic condition and sediment characteristics. In the Lower DnieperBug a correlation was found between abundance and number of oligochaete species and the concentration of ammonium nitrogen and mineral phos

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On the distribution patterns and population dynamics of sublittoral and profundal oligochaeta fauna t abundant and widely distributed species, followed by . (25–858 ind. m.) and . (12–792 ind. m.). The remaining species were .. and . all of which occurred at lower densities and with restricted distributions..Regardless of sampling depth, maximum densities of oligochaetes were found in winter (up t

DEFT

Depth distribution of oligochaetes in Lake Baikal (Siberia — Russia)chaetes present in the samples was counted, without distinguishing between species. The results suggest an exponential decrease in number of individuals (N) relative to depth (11,165 N m. at 21 m, 265 N m. at 1200 m). Most oligochaetes were found in the top 7 cm of sediment. The orange colour of the

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Ultrastructural and histochemical comparison in two haplotaxidses has been detected in the two species. . specimens living in different caves, show some differences in the body wall muscle thickness and in the structure of the ventral nerve cord. A correlation with their different life styles is proposed.

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Propappidae and aquatic Enchytraeidae (Oligochaeta) from the farthest southeast of Russiaolskaya was the second most abundant oligochaete in this stream. It proved to be a true member of this genus and not synonymous with any other species. These are the first records of aquatic enchytraeids for the Primorski Region of Russia.

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Conference proceedings 1994..Ultrastructure ..PollutionStudies ..Population Dynamics .. The volume highlights thesingle largest contribution of Soviet oligochaete biology presented inEnglish since 1980. Nine of the 36 papers in this collection arewritten by authors from the former U.S.S.R. .

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