Larval stages of helminths in fish from the Vistula Lagoon and the Gulf of Gdańsk in relation to bird occurrence
Bulletin of the Sea Fisheries Institute 2 (147) 1999, pp. 51-60

Rolbiecki Leszek1, Rokicki Jerzy1, MOROZIŃSKA-Gogol Jolanta2, Chibani Mahomed3
1University of  Gdańsk, Al. Piłsudskiego 46, 81-378 Gdynia, Poland
2Higher Pedagogical School, Arciszewskiego 22B, 76-200 Słupsk, Poland
3Polish Academy of Sciences, �w. Wojciecha 5, 81-347 Gdynia, Poland

Key words: helminths, fish, birds, Vistula Lagoon, Gulf of Gdańsk.

A total of 5, 835 specimens of fish belonging to three families, Cyprinidae, Percidae and  Gasterosteidae, were examined from January 1993 to March 1997. Sixteen species of parasites in the larval stage were observed and identified. The parasite species included: Digenea (Diplostomum  helveticum, Diplostomum spathaceum, Diplostomum paracaudum, Tylodelphys clavata, Ichthyocotylurus platycephalus, Ichthyocotylurus variegatus, Apatemon annuligerum, Posthodiplostomum cuticola, Posthodiplostomum brevicaudatum); Cestoda (Diphyllobothrium ditremum, Ligula intestinalis, Schistocephalus solidus, Paradilepis scolecina); Nematoda (Eustrongylides mergorum) and Acanthocephala (Corynosoma strumosum, Corynosoma  semerme). Based on the results which were obtained and on data regarding the occurrence of birds in the investigated areas, it can be stated that birds of the Laridae family play the greatest role in helminth circulation followed by those from the Podicipedidae, Phalacrocoracidae and Anatidae families.