In the modern world, when problems of environment are most acutely associated with climate change, amphibians considered to be vulnerable group anamniotes as an indicator state wetlands. Along a decrease numbers among in Europe, nowadays newts especially suffer from impact invasive species, particular predators such Chinese sleeper, Perccottus glenii. This predatory fish species has recently sp...

Following their first appearance, the invasive fishes Pseudorasbora parva and Perccottus glenii have been in Lithuania for several decades. However, until recently, information relating to distribution secondary spread was limited. For this reason, suitable habitats these fish species were surveyed presence across entire country. Additionally, all previously reported records on of summarized. R...

 To investigate the ontogeny of Perccottus glenii, embryonic, larval and juvenile development of P. glenii were examined under captive condition. The fertilized eggs with numerous oil droplets were orange-pink in color, prolate spherical in shape and had average length of 3.32±0.14 mm and width of 1.24±0.04 mm. From fertilization to hatching, the ontogenesis of the fish spent more than 200...

 To investigate the ontogeny of Perccottus glenii, embryonic, larval and juvenile development of P. glenii were examined under captive condition. The fertilized eggs with numerous oil droplets were orange-pink in color, prolate spherical in shape and had average length of 3.32±0.14 mm and width of 1.24±0.04 mm. From fertilization to hatching, the ontogenesis of the fish spent more than 200 h, a...