Lahnsteiner F. (2017): Digestive enzyme system of larvae of different freshwater teleosts and its differentiation during the initial phase of exogenous feeding. Czech J. Anim. Sci., 62, 403–416. Activities of digestive enzymes and main histological characteristics of the intestine were investigated in larvae of three salmonid species (Coregonus maraena, C. atterensis, Thymallus thymallus), of b...

The concentrations of iron, lead, cadmium, copper, manganese, mercury and arsenic were measured in water, sediment, five macrophytes (Typha angustifolia, Iris pseudacorus, Polygonum amphybium, Myriophyllum spicatum and Lemna gibba) and five fish species (Sander lucioperca, Abramis brama, Carassius gibelio, Silurus glanis and Arystichtys nobilis) in the Gruža Reservoir, used for water supply and...

The article presents the research materials of pike perch r. Volga and Kuibyshev reservoir noted changes that have occurred in its population. Prior to creation conditions Middle Volga, male zander matured at age 5–6 years, females 6–7 years. In reservoir, becomes sexually mature 4–5 a small part it matures three. due ecological plasticity ability lay eggs wide temperature range, regardless lev...

Microsatellite DNA based analysis of the pattern of genetic diversity among three coastal and five freshwater populations of pikeperch Sander lucioperca in the northern part of the Baltic Sea drainage basin indicated marked genetic differentiation between the coastal and lake populations. The F(st) between these population groups was as high as 0.25 and R(st) =0.32. In general, the lake populat...

The pikeperch Sander lucioperca (L.) is present in numerous French water bodies. However, few studies have focused on the biology and ecology of the species and, as a result, references are lacking to assess its adaptation to lacustrine environments. The growth and diet of pikeperch were investigated in two reservoirs located in southern France. The fish at both sites show similar growth rates ...