A new species of algae-scraping cyprinid of the genus Capoeta Valenciennes, 1842 is described from the Kheyroud River, located in the southern part of the Caspian Sea basin in Iran. The species differs from other members of this genus by a combination of the following characters: one pair of barbels; predorsal length equal to postdorsal length; maxillary barbel slightly smaller than eye's horiz...

Bar racks are commonly installed to divert fish away from water intakes, such as those at hydropower stations or other abstraction points. In temperate regions their effectiveness has predominantly been assessed in relation diadromous species, salmon and eel. This study compared the efficacy of horizontally vertically oriented (5 mm diameter 10 spacing) guide downstream moving groups five chub ...

The article presents the analysis of changes in annual flow Kura River and its large transboundary tributaries, resulting from climate change anthropogenic factors, mainly irrigated agriculture. It is shown that a significant regime began after construction multi-purpose Mingachevir reservoir 1953. Morevoer, observed river basin since mid 1990s manifests itself by an increase air temperature de...