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ASPECTS ON THE QUANTITATIVE AND QUALITATIVE COMPOSITION OF BICAZ LAKE ICHTHYOFAUNA


ALINA CIUCANU

Issue:

SCSB, Volume XI

Section:

Ecology, Limnology

Abstract:

The purpose of this study was the determination of quantitative and qualitative composition, the ecological state of the original species and of those introduced by man in Bicaz Lake, which, undergo continuous transformations because of annual variations of water level and of the position of the mid-altitude lake in a mountainous area.

Previous investigations on the different aspects of the composition and evolution of the ichthyofauna of Bicaz Lake allow us the realization of a comparative study to point out the modifications occurred from the origins of the lake until now.

Thus, during the first years from its formation, the ichthyofauna was represented by a number of 25 species (Matei D. and Dimitriu M., 1963); after about 15 years of existence were recorded only 19 species (Battes K., 1974); after about 37 years of existence were mentioned 14 species (Miron L. and Simionescu C., 1997). Because of the diminution of the number of species it becomes necessary a periodical surveillance of quantitative and qualitative reports between the different ichthyofaunistic species.

Keywords:

chthyofauna, Bicaz Lake.

Code [ID]:

SCSB200611V11S03A0010 [0002512]


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