National Repository of Grey Literature 18 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
Aquaculture rearing of sturgeons in the Czech Republic
Prokeš, Miroslav ; Baruš, Vlastimil ; Peňáz, Milan
Brief results of biological research (especially growth rate) in six sturgeon species, reared under aquacultural conditions of the Czech Republic in 1994-1999, are presented. As suitable for aquaculture rearing in the Czech Republic, Acipenser baeri A. ruthenus were prowed.
Exploitation changes in the common carp (Cyprinus carpio) within the reservoir system of the Nové Mlýny Water Work
Pecín, M. ; Spurný, P. ; Baruš, Vlastimil ; Prokeš, Miroslav
Under long-term aspects, catch values of the common carp (Cyprinus carpio) and total catches from three reservoirs of the above system in south Moravia, Czech Republic, are compared. A significant catch decrease is registered after the water level low by 85 cm in 1995. This and other influences affecting negatively the fish yields from these reservoirs are discussed.
Biometrical characteristics of Clarias gariepinus, aquaculture reared in the Czech Republic
Kůrka, R. ; Prokeš, Miroslav ; Baruš, Vlastimil
In Clarias gariepinus, reared in the Czech republic in 1999, morphometrical analysis was performed. The typical systematic features, which are valid for the family Clariidae and the genus Clarias were verified, but the species validity was not confirm
Tendencies appearing in fishery yields by angling in the river Dyje downstream of the Nové Mlýny Reservoirs
Baruš, Vlastimil ; Prokeš, Miroslav ; Peňáz, Milan
The yearly fishery yields in the lower reaches of the river Dyje downstream of the Nové Mlýny Reservoirs (South Moravia, Czech Republic), realised by anglers during 1984-1998 were analysed. The results document that, after the arbitrary decrease of wa level by 85 cm in the reservoirs "Věstonická" and "Novomlýnská", a short-term, however significant, increase of the overall as well as of the carp's fishing results occurred in the adjacent riverine fishing grounds during 1996. The catches of the bra
The effect of sex on selected blood plasma indices of adult common carp (Cyprinus carpio L.) during hormonally induced artificial reproduction
Svoboda, M. ; Lusková, Věra ; Kouřil, J.
This study was focused to the sexual differences of biochemical indices in blood plasma of Cyprinus carpio L. in the propagation period. Altogether 28 specimens of 4 - 5 years-old brood fish kept under the same life conditions were studied (18 females individually tagged by PIT tags and 10 males). Blood was taken before and after the propagation. Stress-, fitness- and cellular membrane state indicating indices and Na+ and Cl- ions were determined in blood plasma.

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