Morphology and occurrence of Dichelyne [Cucullanellus] fraseri [Baylis, 1929], a parasitic nematode of Antarctic and sub-Antarctic fishes

• Autorzy: Zdzitowiecki K , Cielecka D
• Języki publikacji: EN

Abstrakty

EN

In total, 1414 Antarctic bony fishes and 66 sub-Antarctic ones were examined for nematodes. One species, Dichelyne (Cucullanellus) fraseri (Baylis, 1929), is redescribed and figured. Dichelyne fraseri var. nototheniae (Baylis, 1929) is considered identical with the nominal form. The validity of D. dichelyneformis (Szidat, 1950) is questioned. D. fraseri is considered a specific parasite of Notothenioidea (Perciformes) and a report on the occurrence in Muraenolepis marmoratus (Gadiformes, Muraenolepidae) is considered doubtful. Occurrence of D. fraseri is reported from 3 areas in the West Antarctic - at South Georgia, the S. Orkney Islands (new geographic record) and the S. Shetland Islands (new geographic record, probably at the southern border of its geographical distribution), as well as from the Kerguelen subregion of the sub-Antarctic. The species was also reported by various authors from the Magellanic sub- region, but it is absent in the subcontinental waters (southern part of the West Antarctic and the whole of East Antarctic). The species is associated with benthic and bentho-pelagic hosts. New host records are Parachaenichthys georgianus, Notothenia angustifrons, N. neglecta, Nototheniops nudifrons and Trematomus vicarius. All previous and present data are summarized.

Słowa kluczowe

EN

Dichelyne fraseri; Antarctic fish; nematode

• Wydawca: -
• Czasopismo: Acta Parasitologica
• Rocznik: 1996
• Tom: 41
• Numer: 1
• Opis fizyczny: p.30-37,fig.

Twórcy

autor

Zdzitowiecki K

• Institute of Parasitology, Polish Academy of Sciences, L.Pasteura 3, S.p.153, 00-973 Warsaw, Poland

autor

Cielecka D

• Department of General Biology and Parasitology, Institute of Biostructure, Medical Academy, Chałubińskiego 5, 02-004 Warszawa, Poland

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