Host records and tissue locations for Diplostomum mordax (metacercariae) inhabiting the cranial cavity of fishes from Lake Titicaca, Peru

Metacercariae of Diplostomum mordax were found in the cranial cavity of Orestias agasii, Orestias olivaceous, Orestias luteus, and Basilichthys bonariensis, fishes from Lake Titicaca, Peru. Metacercariae were not found in Oncorhynchus mykiss introduced into the lake during 1939 and 1940. Compression...

Full description

Saved in:
Bibliographic Details
Published inThe Journal of parasitology Vol. 78; no. 3; p. 541
Main Author Heckmann, R A
Format Journal Article
LanguageEnglish
Published United States 01.06.1992
Subjects
Animals
Brain - parasitology
Cerebellum - parasitology
Fish Diseases - parasitology
Fishes
Fresh Water
Peru
Trematoda - isolation & purification
Trematoda - physiology
Trematode Infections - parasitology
Trematode Infections - veterinary
Peru
Online AccessGet more information

Cover

More Information
Summary:Metacercariae of Diplostomum mordax were found in the cranial cavity of Orestias agasii, Orestias olivaceous, Orestias luteus, and Basilichthys bonariensis, fishes from Lake Titicaca, Peru. Metacercariae were not found in Oncorhynchus mykiss introduced into the lake during 1939 and 1940. Compression of neural tissue within and on the surface of the brain was observed in all infected fishes. Metacercariae migrating into the cerebrum and cerebellum of the piscine host caused hemorrhaging, cell necrosis, inflammation, fiber formation, and nerve fiber disruption. The presence of D. mordax in B. bonariensis and the 3 species of Orestias constitute new host records. Infections in the cerebrum and cerebellum add new information on specific parasite location.
ISSN:0022-3395
1937-2345
DOI:10.2307/3283665