نتایج جستجو برای: luciobarbus esocinus
تعداد نتایج: 123 فیلتر نتایج به سال:
Abstract In semi-arid environments, the effects of irregularly distributed rainfall, flow regulation and water inter-basin transfer enhance spread non-native fish to detriment native communities. River Segura, since 1980s number species has progressively increased, also because building facility connecting rivers Segura Tajo. With aim highlighting how man-driven changes in diversity communities...
Requalification of low-head ramped weirs through the addition substrates (retrofitting) has attracted attention in recent years. However, few studies are available on how this measure affects negotiation by fish. This study aimed to assess performance an experimental weir (3.00 m long with 10% slope; 0.30 head-drop) enhance passage a potamodromous cyprinid species, Iberian barbel (Luciobarbus b...
Survey on developmental stages of Myxobolus karuni and M. persicus in the gills of Barboid fishes from Mezopotamian part of Iran was done. A total 296 fish specimences were examined. Random sampling was carried out during 2002- 2004 from Karoun, Karkheh Rivers and Shadgan Lagoon. The fishes transported alive to the laboratory, their gills were fixed and stained. Myxobolus karuni developed h...
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