Asian pangasiids-an emerging problem for European inland waters? Systematic and parasitological aspects
2009
Wiecaszek, B. | Keszka, S.,West Pomeranian University of Technology, Szczecin (Poland). Dept. of Fish Systematics | Sobecka, E.,West Pomeranian University of Technology, Szczecin (Poland). Dept. of Fish Diseases | Boeger, W.A.,Universidade Federal de Parana, Parana (Brazil). Dept. de Zoologia
Two specimens of pangasiid fish were captured in a pond, in the city of Szczecin, Poland. One of the fish specimens hosted the monogenoid parasite, Thaparocleidus caecus, that has never been found in Europe. Metric and meristic characters of fish studied, as well as the presence of monogenoid T. caecus suggest that the fish found were representatives of Pangasianodon hypophthalmus, however, some features differ markedly from the species description. Comparative analysis suggested that the two specimens collected in Szczecin are hybrids, most likely of P. hypophthalmus with other species, of unknown origin. The specific identity of pangasiids imported alive to Europe should be monitored in the future. The monogenoid parasite found on the fish studied poses no threat to the native ichthyofauna (because of its very narrow host-specificity)
显示更多 [+] 显示较少 [-]