Intestinal digeneans of birds [superfamily Diplostomoidea] of the Masurian lakes

Background. The aim of this study was to complete the information on digenean fauna of birds on the basis of the collection of diplostomid digeneans gathered in 1994–1970 during the field investigations directed by prof. Wiśniewski in the region of Masurian lakeland. Material and methods. A total number of 742 birds from the lakes: Gołdapiwo, Mamry Północne, Święcajty and Dargin, belonging to 27 species (8 families) were examined. Results and discussion. 335 specimens (45.1%) of infected bird hosted 30 species of intestinal digeneans belonging to the family Diplostomidae (Codonocephalus urniger, Conodiplostomum spathula, Diplostomum baeri, D. commutatum, D. pseudospathaceum, D. spathaceum, Hysteromorpha triloba, Neodiplostomum spathoides, Posthodiplostomum brevicaudatum, P. cuticola, Posthodiplostomum sp., Tylodelphys clavata, T. excavata, T. podicipina), Cyathocotylidae (Cyathocotyle prussica, Holostephanus dubinini, Paracoenogonimus ovatus) and Strigeidae (Apatemon gracilis, Apharyngostrigea cornu, Australapatemon minor, Cotylurus brevis, C. cornutus, C. hebraicus, C. raabei, Ichthyocotylurus erraticus, I. pileatus, I. platycephalus, Ophiosoma patagiatum, Parastrigea flexilis, Strigea falconis). Their specificity and frequency (prevalence, mean intensity and abundance), as well as domination status of these species are also discussed. Cotylurus brevis Dubois et Rausch, 1950 is recorded for the first time in Poland

Materialy k gel'mintofaune vodnykh ptic iz territorii Mazury (ozero Varnolty)

The examinations were made in 38 birds from 10 species and 5 families. Among 29 parasitic species, 10 belonged to Trematodes, 17 to cestodes and 2 to Nematodes. Podiceps cristatus showed for the first time the presence of Contracoecum spiculigerum (Rud., 1809) and Dicheilonema acutum (Diesing, 1851). It is noteworthy that the population of Ligula intestinalis, detected in this bird, showed individual differences in the shape of the head, length and width of the strobilae