FIRST RECORD OF THE SOUTH EUROPEAN ROACH, SarmaRutilus rubilio (Bonaparte, 1837) IN THE ASINARO RIVER BASIN (SICILY, ITALY).
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The first record of the South European Roach Sarmarutilus rubilio (Bonaparte, 1837) introduced to the Asinaro river basin (SE Sicily) is reported. The species, alien to Sicily, was sampled/observed in May-June 2025 almost along the entire main river, from near the headwaters up to about 3 km from the mouth. The SE Roach is able to reproduce in this environment, as evidenced by the presence of recent born juveniles and of sexually active adults.