The occurrence of non-native tubenose goby Proterorhinus semilunaris in the pelagic 0+ year fish assemblage of a Central European reservoir

0357495 - BC 2011 RIV GB eng J - Journal Article
Vašek, Mojmír - Jůza, Tomáš - Čech, Martin - Kratochvíl, Michal - Prchalová, Marie - Frouzová, Jaroslava - Říha, Milan - Tušer, Michal - Seďa, Jaromír - Kubečka, Jan
The occurrence of non-native tubenose goby Proterorhinus semilunaris in the pelagic 0+ year fish assemblage of a Central European reservoir.
Journal of Fish Biology. Roč. 78, č. 3 (2011), s. 953-961. ISSN 0022-1112. E-ISSN 1095-8649.
[FSAM 2010: Fish sampling with active methods. České Budějovice, 08.09.2010-11.09.2010]
R&D Projects: GA ČR(CZ) GA206/07/1392; GA AV ČR(CZ) IAA600960901
Institutional research plan: CEZ:AV0Z60170517
Keywords : invasive species * Gobiidae * dispersal * diel migration * diet
Subject RIV: EG - Zoology
Impact factor: 1.685, year: 2011

Early juvenile tubenose goby Proterorhinus semilunaris were collected in nocturnal pelagic waters of the Vranov Reservoir, Czech Republic, in July 2008. Diet analysis demonstrated that juvenile P. semilunaris were feeding on zooplankton, mainly Leptodora kindtii. However, benthic prey was found in the digestive tracts of 55 % of these fish, indicating that early juveniles migrated to the open water either from the bottom or littoral habitats. This is the first time that utilisation of limnetic environment has been documented in P. semilunaris.
Permanent Link: http://hdl.handle.net/11104/0195760