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Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Imprimer: 0018-8166
ISSN En ligne: 1943-5991

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Hydrobiological Journal

DOI: 10.1615/HydrobJ.v34.i2-3.130
pages 111-119

Structural and Functional Parameters of Macrozoobenthos of Water Ecotones and Indicators of the Ecotone Boundaries

T. A. Kharchenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine

RÉSUMÉ

Species composition, numbers, biomass, and production-destruction index of macrozoobenthos were analyzed in the Ukrainian region of lower Danube. Comparison of these parameters with those of a reference ecotone showed that the boundary of the Danube river-sea ecotone is within the foremost part of the estuary. Theoretically, an ecotone was assumed to result from what was termed marginal effect, i.e., specific ecological synergy of two bordering ecosystems. The increased species abundance in an ecotone was considered as its consequence.


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