Elzbieta Zbikowska1. 1. Zakład Zoologii Bezkregowców, Instytut Biologii Ogólnej i Molekularnej, Uniwersytet Mikołlaja Kopernika, ul. Gagarina 9, 87-100 Toruń. ezbikow@biol.uni.torun.pl
Abstract
BACKGROUND: The aim of this work was to determine the biodiversity of digenean larvae in the snail populations from various water bodies. MATERIAL AND METHODS: Snails under study were collected from 29 reservoirs situated in northern and central part of Poland. During the period 1999-2005 10.581 snails from 6 species (among which two species dominated: Lymnaea stagnalis--9.469, and Planorbarius corneus--737 specimens) were examined for shedding cercariae. The total number of 4.404 molluscs was parasitized by 25 species of Digenea. The dominant species found were: Diplostomum pseudospathaceum (Diplostomidae), Echinoparyphium aconiatum (Echinostomatidae) Plagiorchis elegans and Opisthioglyphe ranae (Plagiorhiidae) in Lymnaeidae, while Rubenstrema exasperatum/Neoglyphe locellus (Omphalometridae) and Tylodelphys excavata (Diplostomatidae) in Planorbidae. The adults of the most of Digenea species found in snails were reported from birds.
BACKGROUND: The aim of this work was to determine the biodiversity of digenean larvae in the snail populations from various water bodies. MATERIAL AND METHODS: Snails under study were collected from 29 reservoirs situated in northern and central part of Poland. During the period 1999-2005 10.581 snails from 6 species (among which two species dominated: Lymnaea stagnalis--9.469, and Planorbarius corneus--737 specimens) were examined for shedding cercariae. The total number of 4.404 molluscs was parasitized by 25 species of Digenea. The dominant species found were: Diplostomum pseudospathaceum (Diplostomidae), Echinoparyphium aconiatum (Echinostomatidae) Plagiorchis elegans and Opisthioglyphe ranae (Plagiorhiidae) in Lymnaeidae, while Rubenstrema exasperatum/Neoglyphe locellus (Omphalometridae) and Tylodelphys excavata (Diplostomatidae) in Planorbidae. The adults of the most of Digenea species found in snails were reported from birds.