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Notothen fishes (Nototheniidae) have been recorded on the coasts of South America, from 35°S to southern. Little is known about the biology of intertidal notothen fishes or their relationships with other species, including parasites. Here, we analyzed the parasitic fauna of a species of  Notothenia  collected from the rocky intertidal of Lebu, south-central Chile (36°S) and compared the parasite community of this host with other 9 fish species commonly found in intertidal rocky pools. Among the tested species,  Notothenia  sp. had the highest parasite richness (21 parasitic taxa  vs.  1 to 9 parasitic taxa). The composition of parasite species was different among fishes, with similarity indices between 0 and 33%. The parasite composition of  Notothenia  sp. was most similar to  Calliclinus geniguttatus  (27%). The most abundant and prevalent parasites found in  Notothenia  sp. were the copepod  Caligus  cf . cheilodactyli , Tetraphyllidea larvae, anisakid nematodes, and several acanthocephalan species, which are typical of other fish from the subtidal and bento-demersal zones. Therefore, we conclude that the juveniles of  Notothenia  sp. were a few months old and had their parasites when reaching the intertidal zone, acquired some generalist parasites during their stay in this habitat, such as  Holobomolochus chilensis  and  Lecithaster macrocotyle . Most notothen fishes are from Antarctic and Sub-Antarctic waters, therefore, it is possible that this fish came from another habitat but also from the austral region of South America.  Notothenia  sp. could not be specifically identified because of different results between morphological and genetic analyses.

Parasite community of a temporal notothen fish from intertidal rocky pools in south-central Chile: Is it similar to other fish from the same habitat?