First record of the Asian freshwater fish Pseudorasbora parva (Temminck and Schlegel, 1846) from Lake Bracciano (Central Italy)

The presence of the cyprinid Pseudorasbora parva is here reported for the first time in Lake Bracciano (Central Italy), a dormant volcanic lake not connected to other water bodies. The lake, historically classified as oligo-mesotrophic, has a surface area of 57 km2 and its maximum depth is 165 m. Pseudorasbora parva specimens were first collected during a fish community survey in 2017 and again in 2022. Their total length and body weight ranged from 21 and 81 mm and from 0.25 and 6.43 g, respectively. Since Lake Bracciano is not part of a system of connected water bodies, this record could be evidence of at least a translocation event prior to the first record of 2017, suggesting the need for additional studies and measures to deal with the spread of this invasive species.