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GASTROPODS IN THE BASIN OF THE RIVER FOJNIČKA
2008, 66 (3) p. 119-129
Asia Čičić-Močić, Rifat Škrijelj, Samir Đug
Abstract
The first detailed investigation of Gastropods in the basin of river Fojnička has been carried out in 2001–2002. The material has been sampled five times during four seasons (October 2001–September 2002) at 11 sites in the following waterways: the rivers Fojnička, Dragača, Željeznica, Kreševka and Lepenica. Measurement of certain physical and chemical parameters (BOD5, water temperature, pH value, amount of dissolved oxygen, saturation with oxygen and one time measurement of concentration of nitrates and phosphates) has been carried out together with collecting of macroinvertebrates of zoobenthos. Since the knowledge of biodiversity of Gastropods in Bosnia and Herzegovina is at the very low level, the main objective of this paper is to give an overview of distribution of Gastropods communities in the Fojnička river basin. In these investigations, 11 taxa of Gastropods and 1468 individuals have been determined. The Gastropods made 16% of total settlement of macroinvertebrates of zoobenthos. Dominant species at investigated sites was Ancylus fluviatilis, while species Acicula sp., Saxurinator sp. and Valvata piscinalis were just sporadically recorded. The largest number of individuals (657) and largest number of species (eight) was recorded at the mouth of the river Fojnička into the river Bosna.
Keywords
gastropods, macrozoobenthos, the river fojnička, biodiversity