Informatory investigations about qualitative and quantitative conditions of the crustacean plankton of the Danube section near Alsógöd (Hungary) (Danubialia Hungarica, XLVII)

Bothár, Anna and Ponyi, Jenő (1968) Informatory investigations about qualitative and quantitative conditions of the crustacean plankton of the Danube section near Alsógöd (Hungary) (Danubialia Hungarica, XLVII). A Magyar Tudományos Akadémia Tihanyi Biológiai Kutatóintézetének évkönyve, 35. pp. 117-126. ISSN 0365-3005

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Abstract

The crustacean plankton of the Alsógöd section of the Hungarian Danube was investigated in 1965-1966. In this period 39 species of cladocerans and 16 of copepods, respectively their varieties and forms could be identified. Among these two were new for the fauna of the whole Danube, while for the Hungarian section 15 new taxa were found. A detailed analysis of taxonomical and occurrence conditions of 5 Crustacea species was made. On the basis of the informatory investigations conducted for two years the authors could state th a t the number of Crustacea species as well as th a t of the individuals were decisively influenced by the water-level conditions. The species found were divided in two groups according to the frequency of their occurrence.

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