Morphological and genetic comparison of two Proteocephalus species (Cestoda: Proteocephalidae)

Two Proteocephalus species, P. neglectus La Rue, 1911 and P. exiguus La Rue, 1911, parasites of salmonid and coregonid fishes, were compared morphologically, biometrically, and electrophoretically. The study revealed that the two taxa cannot be differentiated by the morphological criteria used. No f...

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Published inParasitology research (1987) Vol. 80; no. 2; p. 141
Main Authors Snábel, V, Hanzelová, V, Fagerholm, H P
Format Journal Article
LanguageEnglish
Published Germany 1994
Subjects
Animals
Cestoda - classification
Cestoda - cytology
Cestoda - genetics
Fishes - parasitology
Isoelectric Focusing
Isoenzymes - analysis
Oncorhynchus mykiss - parasitology
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Summary:Two Proteocephalus species, P. neglectus La Rue, 1911 and P. exiguus La Rue, 1911, parasites of salmonid and coregonid fishes, were compared morphologically, biometrically, and electrophoretically. The study revealed that the two taxa cannot be differentiated by the morphological criteria used. No fixed allelic difference was found. In all, 12 of 13 enzymes detected by isoelectric focusing exhibited virtually identical isoenzyme profiles in both species. Only in the glutamate oxaloacatate transaminase enzyme locus was a difference observed. The negligible differences in zymograms and morphology, including similar biometric variability of the taxa studied, suggest that the species could be conspecific.
ISSN:0932-0113
DOI:10.1007/bf00933782