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New data on the biology of the introduced exotic nematode Anguillicola crassus Kuwahara, Niimi et Itagaki, 1974 in the eel Anguilla anguilla in Lake Wdzydze (Polish waters)

Rolbiecki L.

Oceanological and Hydrobiological Studies

2008

Vol. 37, No.3

37-48

Anguillicola crassus Kuwahara, Niimi et Itagaki, 1974 is an Asian parasitic nematode that was introduced to Europe and inhabits the swim bladder of eels. In the 2002-2005 period, 237 eels, Anguilla anguilla (Linnaeus, 1758), from Lake Wdzydze were examined for the occurrence of the nematode. 79.3% of the fish were infected, at a mean intensity of 7.2 nematodes per fish. Morphological measurements of the observed A. crassus are presented. This is the first published report of A. crassus in eels from Lake Wdzydze.

The first record of the nematode Anguillicola crassus (Nematoda: Dracunculoidea) in eel of the Gulf of Gdańsk (Poland)

Rolbiecki L., Rokicki J., Wojtkiewicz D.

Oceanological Studies

2000

Vol. 29, No. 2

75-81

The study of parasitic fauna of the Gulf of Gdansk eel revealed the presence of the nematode Anguillicola crassus, not recorded in the area before. The relatively high level of infection (prevalence of 41.9%; mean intensity of 3.0 ind.) is indicative of the nematode posing a hazard for the Gulf of Gdansk eel population. More than half of the infected eel showed anatomo-pathological changes typical of anguillicolosis.