Macrozoobenthos in the Pusta reka river, left tributary of the South Morava river [Serbia, Yugoslavia]
2001
Zivic, I. (University of Belgrade, Belgrade (Yugoslavia). Faculty of Biology) | Markovic, Z. | Brajkovic, M.
In the period from April 1998 to January 1999 the macrozoobenthos of the Pusta Reka river, Serbia (Yugoslavia) was investigated, along the river length of 64 km. The river bottom was found to be inhabited by 135 determined taxa (73 determined at the species level and 62 at the genus level) from 20 groups of macroinvertebrates. The insects orders Ephemeroptera (25 taxa), Trichoptera (19 taxa), Diptera (19 taxa) and Coleoptera (11 taxa) are the most diverse, while the Isopoda and Decapoda, and insects from Megaloptera and Neuroptera orders, each with a single species found, are of the most uniform structure. In the river course near the source, the Gammaridae individuals are dominant. In the upper and middle river course (localities 4, 7, 8, 9, 10 and 11) the Chironomidae larvae are prevalent. Ephemeroptera larvae are dominant in the localities 3, 5 and 6, while the Trichoptera larvae are the most numerous in the locality 11. The greatest diversity of species was found in the locality 3 (2.6) and the smallest in the locality 10 (0.5). On the basis of biocoenotic analysis, three biocoenotic complexes may be distinguished on the bottom of the Pusta Reka river. It should be noted that the species Hemiclepsis marginata, Baetis niger, Ecdyonurus aurantiacus, Helodes marginata, Blepharicera fasciata, Heptatoma pellucens, Rhyacophyla pascoei, were recorded for the first time for the fauna of Serbia (Yugoslavia).
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