Skip to main content Accessibility help

Dynamics of Anguillicola crassus larval infections in a paratenic host, the ruffe (Gymnocephalus cernuus) from the Oder River on the border of Germany and Poland

  • M. Pietrock (a1) and T. Meinelt (a2)


The course of infection of 2-year-old ruffe (Gymnocephalus cernuus L.) from the Oder River (Germany/Poland) with third-stage larvae (L3) of Anguillicola crassus (Nematoda: Anguillicolidae) was investigated at monthly intervals between March 1994 and March 1995. Of 230 fish examined, 152 (66%) harboured viable L3. Monthly prevalences fluctuated between 12 and 96%; mean intensities ranged from 1.0 to 5.6 L3 per infected fish. Temperature-dependent differences in infection were noted with the prevalence and mean intensity of infection being significantly higher (Chi-Square test and Mann-Whitney-U-test, respectively; P<0.01) at water temperatures less than 10°C (cold period) than at those above (warm period). These differences remained significant even after the division of fish samples into two size classes (8.5–10.5 cm, 11–13 cm). Although the paratenic hosts may acquire infections year round, the results suggest that ruffe become infected mainly during the cold season and that the host's feeding ecology determines the final course of infection.



Hide All
Bauer, O.N. (1987) Key to the parasites of freshwater fish of the USSR. 584 pp. Leningrad & Nauka (in Russian)
Bush, A.O., Lafferty, K.D., Lotz, J.M. & Shostak, A.W. (1997) Parasitology meets ecology on its own terms: Margolis et al. revisited. Journal of Parasitology 83, 575583.
Cardoso, E.M. & Saraiva, A.M. (1998) Distribution and seasonal occurrence of Anguillicola crassus (Nematoda: Dracunculoidea) in the European eel Anguilla anguilla L. from rivers of north Portugal. Bulletin of the European Association of Fish Pathologists 18, 136139.
De Charleroy, D., Grisez, L., Thomas, K., Belpaire, C. & Ollevier, F. (1990) The life cycle of Anguillicola crassus. Diseases of Aquatic Organisms 8, 7784.
Frisch, D. (1995) Artengemeinschaften und Abundanzdynamik cyclopoider Copepoden im Gewässersystem einer Tieflandflu(aue während und nach dem Frühjahrshochwasser (Unteres Odertal, Brandenburg). Diploma thesis, 101 pp. Berlin, Free University.
Haenen, O.L.M. & van Banning, P. (1990) Detection of larvae of Anguillicola crassus (an eel swimbladder nematode) in freshwater fish species. Aquaculture 87, 103109.
Haenen, O.L.M. & van Banning, P. (1991) Experimental transmission of Anguillicola crassus (Nematoda, Dracunculoidea) larvae from infected prey fish to the eel Anguilla anguilla. Aquaculture 92, 115119.
Hartmann, F. (1994) Untersuchungen zur Biologie & Epidemiologie und Schadwirkung von Anguillicola crassus Kuwahara, Niimi und Itagaki (1974) (Nematoda), einem blutsaugenden Parasiten in der Schwimmblase des europäischen Aales. 139 pp. Aachen, Verlag Shaker.
Hirose, H., Sekino, T. & Egusa, S. (1976) Notes on the egg deposition, larval migration and intermediate host of the nematode Anguillicola crassa parasitic in the swimbladder of eels. Fish Pathology 11, 2731.
Höglund, J. & Andersson, J. (1993) Prevalence and abundance of Anguillicola crassus in the European eel (Anguilla anguilla) at a thermal discharge site on the Swedish coast. Journal of Applied Ichthyology 9, 115122.
Höglund, J. & Thomas, K. (1992) The black goby Gobius niger as a potential paratenic host for the parasitic nematode Anguilla crassus in a thermal effluent of the Baltic. Diseases of Aquatic Organisms 13, 175180.
Kaalaas, S. (1995) The ecology of ruffe, Gymnocephalus cernuus (Pisces: Percidae) introduced to Mildevatn, western Norway. Environmental Biology of Fish 42, 219232.
Kangur, K. & Kangur, A. (1996) Feeding of ruffe (Gymnocephalus cernuus) in relation to the abundance of benthic organisms in Lake Vortsjaerv (Estonia). Annales Zoologici Fennici 33, 473480.
Knopf, K., Würtz, J., Sures, B. & Taraschewski, H. (1998) Impact of low water temperature on the development of Anguillicola crassus in the final host Anguilla anguilla. Diseases of Aquatic Organisms 33, 143149.
Kuwahara, A., Niimi, A. & Itagaki, H. (1974) Studies on a nematode parasitic in the air bladder of the eel. I. Description of Anguillicola crassa n. sp. (Philometridea, Anguillicolidae). Japanese Journal of Parasitology 33, 275279.
Lehmann, J., Mock, D., Klinger, H. & Kriwet, T. (1996) Der Kaulbarsch (Gymnocephalus cernuus) als vermutlich wichtigste Infektions- bzw. Reinfektionsquelle mit dem Schwimmblasenwurm Anguillicola crassus für ältere Aale in Nordrhein-Westfalen. Fischer and Teichwirt 11, 442445.
Meinelt, T., Krüger, R., Pietrock, M., Stüber, A., Osten, R. & Steinberg, C. (1997) Metal load in sediments, pike (Esox lucius) and bream (Abramis brama) tissues in the River Oder (Germany/Poland). Archives of Nature Conservation and Landscape Research 36, 19.
Möller, H., Holst, S., Lüchtenberg, H. & Petersen, F. (1991) Infection of eel Anguilla anguilla from the River Elbe estuary with two nematodes, Anguillicola crassus and Pseudoterranova decipiens. Diseases of Aquatic Organisms 11, 193199.
Molnár, K., Baska, F., Csaba, G., Glávits, R & Székely, C. (1993) Pathological and histopathological studies of the swimbladder of eels Anguilla anguilla infected by Anguillicola crassus (Nematoda: Dracunculoidea). Diseases of Aquatic Organisms 15, 4150.
Moravec, F. (1992) Spreading of the nematode Anguillicola crassus (Dracunculoidea) among eel populations in Europe. Folia Parasitologica 39, 247248.
Moravec, F. (1994) Parasites of European freshwater fishes. 473 pp. Prague, Academia
Moravec, F. (1996) Aquatic invertebrates (snails) as new paratenic hosts of Anguillicola crassus (Nematoda: Dracunculoidea) and the role of paratenic hosts in the life cycle of this parasite. Diseases of Aquatic Organisms 27, 237239.
Moravec, F. & Konecny, R. (1994) Some new data on the intermediate and paratenic hosts of the nematode Anguillicola crassus Kuwahara, Niimi et Itagaki, 1974 (Dracunculoidea), a swimbladder parasite of eels. Folia Parasitologica 41, 6570.
Moravec, F. & Škoriková, B. (1998) Amphibians and larvae of aquatic insects as new paratenic hosts of Anguillicola crassus (Nematoda: Dracunculoidea), a swimbladder parasite of eels. Diseases of Aquatic Organisms 34, 217222.
Moravec, F., Di Cave, D., Orecchia, P. & Paggi, L. (1993) Studies on the development of Anguillicola crassus Kuwahara, Niimi et Itagaki, 1974 (Nematoda: Dracunculoidea) in the intermediate host. Folia Parasitologica 40, 3948.
Neumann, W. (1985) Schwimmblasenparasit Anguillicola bei Aalen. Fischer und Teichwirt 11, 322
Padberg, D. (1992) Fischereibiologische Analyse des Kaulbarschbestandes des Großen Müggelsees im Vergleich mit dem der Berliner Havel. Diploma thesis, 43 pp. Storkow, Ingenieurschule für Binnenfischerei.
Petter, A.J., Cassone, J. & Le Belle, N. (1990) Observations sur la biologie des premiers stades larvaires d' Anguillicola crassus, nématode parasite d'anguille. Annales de Parasitologie Humaine et Comparée 65, 2831.
Pietrock, M. (1998) Faunistisch-ökologische Untersuchungen zum Endohelminthenbefall von Zope (Abramis ballerus) und Kaulbarsch (Gymnocephalus cernuus) aus der Unteren Oder. 228 pp. Berlin, Verlag Wissenschaft und Technik.
Pietrock, M., Meinelt, T. & Krüger, R. (1999a) Schadstoffbelastung und Fischgesundheit im Nationalpark ‘Unteres Odertal'. pp. 417430in Dohle, W., Bornkamm, R. & Weigmann, G. (Eds) Das Untere Odertal. Stuttgart, E. Schweizerbart'sche Verlagsbuchhandlung(Nägele und Obermiller).
Pietrock, M., Mattheis, T., Krüger, R. & Meinelt, T. (1999b) Seasonal dynamics of Phyllodistomum folium (von Olfers, 1816) (Trematoda: Gorgoderidae) in blue bream, Abramis ballerus (Linnaeus 1758) and ruffe, Gymnocephalus cernuus (Linnaeus 1758) from the Oder River (Germany/Poland). Acta Parasitologica 44, 165169.
SPSS Inc.© (1999) Statistical package for the social sciences (SPSS), Version 9.0.1. Chicago.
Stadel, O. (1936) Nahrungsuntersuchungen an Elbfischen. Zeitschrift für Fischerei 34, 4561.
Székely, C.(1994) Paratenic hosts for the parasitic nematode Anguillicola crassus in Lake Balaton, Hungary. Diseases of Aquatic Organisms 18, 1120.
Székely, C. (1995) Dynamics of Anguillicola crassus (Nematoda: Dracunculoidea) larval infection in paratenic host fishes of Lake Balaton, Hungary. Acta Veterinaria Hungarica 43, 401422.
Székely, C. (1996) Experimental studies on the infectivity of Anguillicola crassus third-stage larvae (Nematoda) from paratenic hosts. Folia Parasitologica 43, 305311.
Thomas, K. & Ollevier, F. (1992a) Paratenic hosts of the swimbladder nematode Anguillicola crassus. Diseases of Aquatic Organisms 13, 165174.
Thomas, K. & Ollevier, F. (1992b) Population biology of Anguillicola crassus in the final host Anguilla anguilla. Diseases of Aquatic Organisms 14, 163170.
Thomas, K. & Ollevier, F. (1993) Hatching, survival, activity and penetration efficiency of second-stage larvae of Anguillicola crassus (Nematoda). Parasitology 107, 211217.
van Banning, P. & Haenen, O.L.M. (1990) Effects of the swimbladder nematode Anguillicola crassus in wild and farmed eel, Anguilla anguilla. pp. 317330in Perkins, F.O. & Cheng, T.C. (Eds) Pathology in marine science. New York, Academic Press.
Wesenberg-Lund, C. (1943) Biologie der Süßwasserinsekten. 682 pp. Berlin, Wien,J. Springer Verlag.

Dynamics of Anguillicola crassus larval infections in a paratenic host, the ruffe (Gymnocephalus cernuus) from the Oder River on the border of Germany and Poland

  • M. Pietrock (a1) and T. Meinelt (a2)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed