Abstract:The parasite faunas of the Patagonian tooth- fish Dissostichus eleginoides from six locations around the Southern Ocean were studied and compared. Thirty-two parasite taxa were found. Ten parasite species are reported from D. eleginoides for the first time and some other previously reported species were new locality re- cords. Sample size at Shag Rocks was sufficient to examine the effect of intrinsic host factors, including sex and length, on the parasite fauna and these results are discussed here. Some parasite species were found only in certain areas. Sørensen’s similarity index indicated that the parasite faunas at Heard, Maquarie and Prince Edward Islands were the most similar, while those from the Ross Sea was the most dissimilar. There may be a gradual decrease in parasite diversity the further east the samples were collected around the Southern Ocean.

Associated cases:

• Macquarie Island Marine Park
• Heard and McDonald Islands Marine Reserve