The study aimed to investigate the maturation process of ovarian follicles and ovary structure of migratory form of female Bulatmai barbel (Lucioarbus capito). The histology of oogenesis coincided with that known from most teleosts. The ovarian structure was found to be cytovarian. The development of the oocytes is started from early May along with spawning and the degeneration of matured oocyt...

The study aimed to investigate the maturation process of ovarian follicles and ovary structure of migratory form of female Bulatmai barbel (Lucioarbus capito). The histology of oogenesis coincided with that known from most teleosts. The ovarian structure was found to be cytovarian. The development of the oocytes is started from early May along with spawning and the degeneration of matured oocyt...

Fish can be highly vulnerable to environmental pressures because they are exposed oxidative stressors in the aquatic environment. Such affect levels of antioxidant biomarkers against reactive oxygen species (ROS). With this study we investigated stress ecology Danube barbel (Barbus balcanicus) from Barbucina creek (northeast Italy), a watercourse Collio winegrowing district. To do this, superox...

T he mahseer or golden mahseer (Tor putitora, Hamilton) is considered king of the Himalayan fishes. It is an important edible fish in the rivers and tributaries of Nepal (Shrestha, 1997). The mahseer’s range extends throughout southern Asia, from Iran in the west to Thailand in the east, and from Sri Lanka in the south to the Himalayas in the north. This species resembles a typical carp in stru...

Pathogenic Vibrio cholerae non-O1/non-O139 was isolated from the fry of the Cardinal tetra, Paracheirodon axelrodi and in adult Raphael catfish, Platydoras costatus kept in aquarium conditions. Further, an outbreak of vibriosis occurred in the wild populations of common nase, Chondrostoma nasus; chub, Squalius cephalus; gudgeon, Gobio gobio; stone loach, Barbatula barbatula; barbel, Barbus barb...