Štefan HUDÁK, Dmitry A. ZAITSEV, Štefan KOREČKO, Slavomír ŠIMOŇÁK Department of Computers and Informatics, Faculty of Electrical Engineering and Informatics, Technical University of Košice, Letná 9, 042 00 Košice, tel. 095/602 2525, E-mail: {Stefan.Hudak, Stefan.Korecko, Slavomir.Simonak}@tuke.sk Department of Communication Networks, Odessa National Telecommunication Academy, Kuznechnaya, 1, Od...

Experiments were carried out on the survival and growth of Rasbora daniconius, Puntius ticto and Puntius conchonius. The motivation of the study was to obtain information for growing the fish on a commercial scale for their use as biological control agents against mosquito larvae. The effects of temperature, total hardness, DO, pH and feed on the growth of fish were also investigated. Excessive...

Interspecific androgenetic rosy barb (Puntius conchonius) was generated using its cadaveric (-20 degrees C) or fresh sperm to activate nuclear genome inactivated oocytes of gray tiger barb (Puntius tetrazona). UV irradiation was used to inactivate nuclear genome of tiger barb oocytes. Thermal shock restored diploidy of rosy barb in the oocytes of tiger barb. Survival of androgenotes was 14% or ...

The terminal Pleistocene and Early Holocene, a period from 15 000 to 18 000 Before Present (BP), was critical in establishing the current Holarctic fauna, with temperate-climate species largely replacing cold-adapted ones at mid-latitudes. However, the timing and nature of this process remain unclear for many taxa, a point that impacts on current and future management strategies. Here, we use a...

The water vole (Arvicola amphibius) in the forest-steppe of West Siberia is known to have wide fluctuations in abundance. These fluctuations are accompanied by changes in birth and death rates, sex-age structure of the population, and individual morphophysiological and behavioral characteristics of the animals. Survival of the animals depends on season, phase of population cycle, and sex. Based...

An investigation was carried out to know the induced breeding techniques of some firewater fish species such as rui (Labeo rohita), catla (Catla catla), silver carp (Hypophthalmichthys molitrix), grass (Ctenopharyngodon idella), common (Cyprinus carpio), bighead nobilis), sharpunti (Puntius sarana) and bata bata) at Ma Fatima Fish Hatchery in Chanchra, Jashore, Bangladesh. The cost-benefit anal...

The state of Assam in India is recognized as one the hotspots freshwater fish diversity. Beki River an important tributary Brahmaputra River. A significant decrease this region has been a major source concern recent years. diversity encountered various anthropogenic threats that have led to loss biodiversity. In study, was studied six landing zone and 31 species were recorded. ichthyofaunal bel...

The medium-sized barbs (< 115 mm SL) hitherto referred to Puntius filamentosus (Valenciennes, 1844) in southern India and Sri Lanka are among the most common cyprinids in the lowland rivers and reservoirs of these areas. They form an important part of the local food and ornamental fishery (Pethiyagoda, 1991; Talwar & Jhingran, 1991), and are easily recognised by the elongated, filament-like ext...