Abstract The eastern part of the Black Sea and its tributaries are suitable habitats for several sturgeon species, among which Acipenser gueldenstaedtii , A. stellatus nudiventris persicus sturio H. huso well documented. However, different threats have led these species to a dramatic decline, all them currently listed as Critically Endangered some Locally Extinct in that area. We tested 94 wild...

background: hematological studies are valuable diagnostictechniques in the medical care of fish, reflecting the healthcondition and the effects of environmental factors on fish. objectives:due to the high value of sturgeon fish and necessityto recover the brood stock, this study was done to provide dataabout hematological parameters and reproduction normative ofwild brood stock beluga, huso hus...

in this study the lc50 96h values of water-soluble fractions (wsf) of the caspian sea ? exploited crude oil were determined in beluga, huso huso fingerlings. the fingerlings averaged 2.42 ? 0.11 g in weight were exposed to wsf crude oil at concentrations 24.75, 27, 29.25, 31.5, 33.75, 36, 38.25 ppm. the treatments were performed in three replicates and all changes in the specimens were determin...

In the present study, different oxygen levels were examined in two weight groups of great sturgeon Huso huso including small size (with initial weight 280.9 ± 49.2 g) and large size (with initial weight 1217.9 ± 138.1 g). The fish were kept in hypoxia (2-3 mg/l), normoxia (5-6 mg/l) and hyperoxia (9-10 mg/l) conditions for 8 weeks and then were individually placed in the tanks with oxygen lev...

In the present study, different oxygen levels were examined in two weight groups of great sturgeon Huso huso including small size (with initial weight 280.9 ± 49.2 g) and large size (with initial weight 1217.9 ± 138.1 g). The fish were kept in hypoxia (2-3 mg/l), normoxia (5-6 mg/l) and hyperoxia (9-10 mg/l) conditions for 8 weeks and then were individually placed in the tanks with oxygen lev...