First Record of the Pontian Monkey Goby Neogobius fluviatilis (Pallas, 1814) in the Someş River, Transylvania – Romania

In our research paper we recorded for the first time the presence of the Monkey goby ( Neogobius fluviatilis ) in SomeAŸ river, located in the North-Western Transylvania region. The first specimen was caught in 2013 between the villages Lemniu and Letca (SAƒlaj County). This is the reason why we decided to make futher investigation, thus in 2014 we have organized scientific researches and field trips in four different sites on the SomeAŸ river: Cetan and Valea GroAŸilor (Cluj County), respectivelly Letca and Cuciulat (SAƒlaj County). We managed to catch 105 specimens, which were taken for further investigations. The species was identified by dichotomous keys and morphological characters. Based on our field observation, considering the biology of this species, we conclude that Neogobius fluviatilis area is in continuous expasion.

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