Metacercariae of Trematoda in fish musculature from Latvian water bodies

Current issue: Volume 22, No. 2 (2022)

METACERCARIAE OF TREMATODA IN FISH MUSCULATURE FROM LATVIAN WATER BODIES

Muza Kirjušina*, Reinis Bricis, Inese Gavarane

Kirjušina M., Bricis R., Gavarne I. 2022. Metacercariae of Trematoda in fish musculature
from Latvian water bodies. Acta Biol. Univ. Daugavp., 22 (2): 189 – 193.

Abstract
Data, concerning fish parasitological investigation during the period from 1949 through 2010 in Latvia, is summarized in this short review. More than 60 fish species were investigated, and five metacercariae of trematode species in fish musculature were found: Paracoenogonimus ovatus, Hysteromorpha triloba, Posthodiplostomum cuticola, Bucephalus polymorphus and Apharhyngostrigea cornu. Metacercariae P. ovatus is the most common parasite in freshwater fish musculature and was detected in 17 fish species. Prevalence of invasion variesfrom 3.3% to 88.8%. Intensity of invasion was 12.8 – 98.3 metacercariae per 10 grams of muscle. Encysted H. triloba metacercariae was detected in six fish species from lakes, prevalence of infection varied between 12.5% and 92.5%. P. cuticola is widespread pathogenic for fish parasite was detected in muscles of four fish species in lakes, rivers and carps ponds. Prevalence of invasion grows up to 100% in some lakes. In mass infection case, parasite were found in muscle under
fish skin. B. polymorphus was found in muscle of seven fish species. Metacercariae A. cornu was found only in carp (Cyprinis carpio), under skin and in deeper layers of muscle.

Keywords: Metacercariae, fish musculature, P. ovatus, H. triloba, P. cuticola, B. polymorphus, A. cornu.

*Corresponding author: Muza Kirjušina. Daugavpils University, Par‚des Str. 1A, Daugavpils,
LV-5401, Latvia, E-mail: muza.kirjusina@du.lv
Reinis Bricis. Latgales zoodārzs, Vienības Str. 27, Daugavpils, LV-5401, Latvia
Inese Gavarāne. Daugavpils University, Parādes Str. 1A, Daugavpils, LV-5401, Latvia