The primary goal in aquaculture is to maximize the growth and survival of farmed fishes at a minimal cost, which requires an understanding changes metabolism undergone by different fish breeds during development. In particular, highly intensive production systems, such as recirculating require better oxygen consumption. Ontogenetic phase shifts (i.e., sudden changes) have been observed several ...

the aim of the present study was the genetic analysis of the dniester population of sterlet acipenser ruthenus and comparison of it to five other sterlet populations, in order to develop a population recovery plan. the genetic analysis of six sterlet populations from eurasian rivers (dniester, dnieper, danube, volga, kama and ob) was carried out using microsatellite dna markers. the genetic var...

Two sturgeon species, Acipenser ruthenus (Linnaeus, 1758) and baerii (Brandt, 1869), inhabit the Irtysh basin. In 2018, we received some “atypical” specimens of sturgeon, which were similar to A . but had a number pronounced external differences. The hybrids A. × , named “oster”, can sometimes be caught in natural habitats Ob Yenisei rivers. Despite development methods for genetic identificatio...

Abstract Sturgeon populations are declining worldwide and the target of extensive conservation efforts. Addressed in several pieces legislation, sturgeons have received considerable attention as flagship or umbrella species. Despite need for a better understanding distribution population status, use traditional sampling methods failed past, thereby hampering reliable assessments, prerequisite c...

abstract the present study was carried out to investigate the efficacy of two anesthetics, clove oil and ketamine, comparison of hematological parameters, and blood biochemical indices under optimum doses of the two anesthetics in juvenile sterlet acipenser ruthenus (n=276) with an average weight of 64.1 ± 3.4 g. clove oil was used in concentrations of 14, 35, 56, 77, 98 and 119 mg/l, and those...