Does invasive Chondrostoma nasus shift the parasite community structure of endemic Parachondrostoma toxostoma in sympatric zones?
|Year of publication||2012|
|Type||Article in Periodical|
|Magazine / Source||PARASITES & VECTORS|
|MU Faculty or unit|
|Keywords||Biological invasion Endemic species Cyprinid fish Parasite communities Monogenea Hybrid zone|
|Description||The composition of parasite communities in two cyprinid species in southern France - native and threatened Parachondrostoma toxostoma and introduced Chondrostoma nasus - was investigated. In sympatry, these two species form two hybrid zones in the Durance and Ardeche Rivers. Due to their different feeding preference and habitat positions in allopatry, we supposed a difference in parasite communities between fish species. We expected more similar parasite communities in sympatric zones associated with habitat overlap (facilitating the transmission of ectoparasites) and similar feeding (more generalist behaviour when compared to allopatry, facilitating the transmission of endoparasites) in both fish species. Finally, we investigated whether P. toxostoma x C. nasus hybrids are less parasitized then parental species.|