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The black goby Gobius niger as a potential paratenic host for the parasitic nematode Anguillicola crassus in a thermal effluent of the Baltic
Höglund, J.; Thomas, K. (1992). The black goby Gobius niger as a potential paratenic host for the parasitic nematode Anguillicola crassus in a thermal effluent of the Baltic. Dis. Aquat. Org. 13(3): 175-180. https://dx.doi.org/10.3354/dao013175
In: Diseases of Aquatic Organisms. Inter Research: Oldendorf/Luhe. ISSN 0177-5103; e-ISSN 1616-1580
|   |
| Trefwoorden |
Aquatic organisms > Marine organisms > Fish > Marine fish
Environmental effects > Temperature effects
Hosts
Parasites
Parasites > Endoparasites
Anguillicola crassus Kuwahara, Niimi & Itagaki, 1974 [WoRMS]; Gobius niger Linnaeus, 1758 [WoRMS]
Marien/Kust |
| Abstract |
Species of fish preyed upon by the European eel Anguillicola anguilla were examined for infective larvae of the swimbladder nematode, Anguillicola crassus , in an area of the Baltic receiving thermal discharges from the Oskarshamn nuclear power station in Sweden. We found that the main paratenic hosts for A. crassus were 2 benthic species: the black goby Gobius niger and ruffe Gymnocephalus cernua . This finding is somewhat at variance with findings from Central Europe. Larvae and adult parasites recovered from eels fed with larvae from the black goby were scrutinized, using scanning electron microscopy, and their species identified on a morphological basis. A positive relationship between larval transmission into eels and surrounding water temperature was found. Parasite establishment and development in the eel were also demonstrated to be favoured at a moderately high water temperature. It is concluded that in addition to freshwater fish species, those of marine origin may also be important vectors for A. crassus in coastal waters. |
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