Metacercariae were recovered from freshwater fish taken from a stream in Lum Cha Muak, Nakhon Ratchasima Province, northeast Thailand during the year 2000. Seventy-nine cyprinoid fish comprising 3 species (52 Puntius leiacanthus, 22 Cyclocheilichthys armatus, and 5 Hampla dispar) were collected. The prevalence of infection with metacercariae was 51.9%. Only two genera of metacercariae were foun...

The intensity of infection of trematode metacercariae was determined in five species of cyprinoid fish collected from Mae Ngud reservoir, Chiang Mai Province. These species were Thynnichthys thynnoides, Puntioplites proctozysron, Hampala macrolepidota, Puntius leiacanthus and Puntius gonionotus. T. thynnoides contained the highest number (83.0%) of metacercariae, whereas P. gonionotus had the f...

In the present reprobiological study on Puntius filamentosus the spawning months of November and April coincided with North-East Monsoon (November) and South-West Monsoon (April) in India. The gross morphology of P. filamentosus showed 6 ovarian stages. The histological appearance of the ovaries showed ten stages (oogonia to atretic oocytes). The testes of Puntius filamentosus showed five morph...

The tropical Asian cyprinid genus Puntius is a major part of the ichthyofauna in Southeast Asia. Systematic status of the genus Puntius among Cyprinidae, the most prominent freshwater fish all over the world, remain to be substantiated. The molecular phylogenetic analyses derived from Recombination activating genesequences (RAG2) for 35 representative samples of Malaysian Puntius and their alli...

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...

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...