Eimeria jadvigae n.sp. (Apicomplexa: Eucoccidia), a parasite of swimming bladder of Coryphaenoides holotrachys (Günther, 1887) off the Falklands

Abstract

The parasite was found to infest 80-100%, depending on a stock, of Coryphaenoides holotrachys caught off the Falklands. The parasites occurred most often in the terminal part of the swimming bladder, its mucosa being strongly degenerated in the form of a l-cm thick creamy layer filled with numerous spores of Eimeria jadvigae. Similar occurrence was found also in a closely related species C. ferrieri (Regan, 1913). The parasite is regarded as a species corresponding to the northern hemisphere′s Eimeria gadi (Fiebiger, 1913).