@article{Vecchioni_Marrone_Naselli-Flores_2019, title={On the occurrence and distribution of Calanipeda aquaedulcis Kritschagin, 1873 (Copepoda, Calanoida, Pseudodiaptomidae) in Sicily, Italy, with some notes on coexistence and species replacement in calanoid copepods: Calanipeda aquaedulcis in Sicily}, volume={10}, url={https://www.pagepressjournals.org/aiol/article/view/aiol.2019.8177}, DOI={10.4081/aiol.2019.8177}, abstractNote={<p>The only population of the pseudodiaptomid copepod <em>Calanipeda aquaedulcis</em> Kritschagin, 1873 to date reported to occur in Sicily disappeared at the beginning of the XXI century due to deep environmental changes which affected the single site (Lake Biviere di Gela) known for this species on the island. In that site <em>C. aquaedulcis</em> is now replaced by <em>Copidodiaptomus numidicus </em>(Gurney, 1909)<em>, </em>a diaptomid copepod whose distribution has been greatly increasing since the second half of the last century. In the present note, the occurrence of <em>C. aquaedulcis</em> in 12 novel water bodies spread throughout Sicily is reported, and some environmental data on the sites where the species was collected are provided. Moreover, in a few sites <em>C. aquaedulcis</em> was found to co-occur with <em>Copidodiaptomus numidicus</em>. The recorded co-occurrence of these two species and the replacement of <em>C. aquaedulcis</em> with <em>C. numidicus</em> in Lake Biviere di Gela are briefly discussed.</p>}, number={1}, journal={Advances in Oceanography and Limnology}, author={Vecchioni, Luca and Marrone, Federico and Naselli-Flores, Luigi}, year={2019}, month={May} }