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Infection ecology of Philometra ovata (Nematoda: Philometridae) in a wild European minnow (Phoxinus phoxinus) population in Finland

Published online by Cambridge University Press:  05 February 2015

YI-TE LAI ,
JOUNI TASKINEN ,
JUKKA KEKÄLÄINEN  and
RAINE KORTET
YI-TE LAI*
Affiliation:
Department of Biology, University of Eastern Finland, P.O. Box 111, FIN-80101, Joensuu, Finland
JOUNI TASKINEN
Affiliation:
Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
JUKKA KEKÄLÄINEN
Affiliation:
Department of Biology, University of Eastern Finland, P.O. Box 111, FIN-80101, Joensuu, Finland Centre for Evolutionary Biology, The University of Western Australia, Crawley, Australia
RAINE KORTET
Affiliation:
Department of Biology, University of Eastern Finland, P.O. Box 111, FIN-80101, Joensuu, Finland
*
*Corresponding author. Department of Biology, University of Eastern Finland, P.O. Box 111, FIN-80101, Joensuu, Finland. E-mail: [email protected]
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Summary

Seasonal life cycle of body cavity dwelling (BCD) Philometra ovata (Nematoda: Philometridae) has been reported in southern and central European countries, but its swim bladder dwelling (SBD) stage and northern populations have remained unstudied. In this study, we investigated the seasonal life cycle and infection ecology of P. ovata in both swim bladder and body cavity in the European minnow (Phoxinus phoxinus) in Finland. The larval P. ovata infected the swim bladder of minnows mainly in August. Female SBD P. ovata emigrated to body cavity mostly in September, grew to their full size by the end of the next June, and evacuated from minnows in July. In addition, female SBD P. ovata retarding their development and staying in swim bladder were found commonly in minnows, thus the mean monthly prevalence (6·7 ± 3·9%) and mean intensity (1·4 ± 0·8) of BCD P. ovata was lower than that of SBD P. ovata (37·8 ± 15·1% and 2·0 ± 1·5, respectively). Finally, despite the large size of BCD individuals, infection of P. ovata did not impair body condition and relative gonad size of minnows, but increased the mortality and caused physical damages in their hosts during the evacuation period.

Keywords

Philometra ovataEuropean minnowPhoxinus phoxinusbody cavityswim bladderparasitic infectionprevalenceintensity
Type
Research Article
Information
Parasitology , Volume 142 , Issue 7 , June 2015 , pp. 926 - 937
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Copyright
Copyright © Cambridge University Press 2015 

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References

REFERENCES

Bolger, T. and Connolly, P. L. (1989). The selection of suitable indices for the measurement and analysis of fish condition. Journal of Fish Biology 34, 171–182.CrossRefGoogle Scholar
Bush, A. O. Lafferty, K. D., Lotz, J. M. and Shostak, A. W. (1997). Meet ecology on its own terms: Margolis et al. revisited. The Journal of Parasitology 83, 575–583.CrossRefGoogle Scholar
Erickson, D. L., Hightower, J. E. and Grossman, G. D. (1985). The relative gonadal index: an alternative index for quantification of reproductive condition. Comparative Biochemistry and Physiology A 18, 117–120.CrossRefGoogle Scholar
Innal, D. and Keskin, N. (2005). Philometra ovata (Zeder, 1803) (Philometridae) in European chub (Leuciscus cephalus L., 1758) living in Çamkoru Lake (Çamlidere-Ankara). Journal of Animal and Veterinary Advances 4, 959–961.Google Scholar
Jacob, A., Evanno, G., Renai, E., Sermier, R. and Wedekind, C. (2009). Male body size and breeding tubercles are both linked to intrasexual dominance and reproductive success in the minnow. Animal Behaviour 77, 823–829.Google Scholar
Kekäläinen, J., Valkama, H., Huuskonen, H. and Taskinen, J. (2010). Multiple sexual ornamentation signals male quality and predicts female preference in minnows. Ethology 116, 895–903.Google Scholar
Kekäläinen, J., Leppänen, H.-R., Huuskonen, H., Lai, Y.-T., Valkama, H. and Taskinen, J. (2011). The information content of odour, colour and tactile cues in the mate choice of minnows. Behaviour 148, 909–925.Google Scholar
Keskin, N. (1988). Türkiye'de Leuciscus cephalus‘da (Tatlýsu kefali) Philometra abdominalis Nybelin, 1928 (Philometridae) olgusu. Doða Türk Zool Dergisi 12, 70–74.Google Scholar
Lai, Y.-T., Taskinen, J., Kekäläinen, J. and Kortet, R. (2012). Non-invasive diagnosis for Philometra ovata (Nematoda) infection in the common minnow Phoxinus phoxinus . Parasitology Research 111, 2411–2418.CrossRefGoogle ScholarPubMed
Lai, Y.-T., Kekäläinen, J. and Kortet, R. (2013). Male ornamentation in the European minnow (Phoxinus phoxinus) signals swimming performance. Ethology 119, 1077–1085.CrossRefGoogle Scholar
Molnár, K. (1967). Morphology and development of Philometra abdominalis Nybelin, 1928. Acta Veterinaria Academiae Scientiarum Hungaricae 17, 293–300.Google ScholarPubMed
Moravec, F. (1977 a). The life history of the nematode Philometra abdominalis in the Rokytka Brook, Czechoslovakia. Acta Societatis Zoologicae Bohemoslovacae 41, 114–120.Google Scholar
Moravec, F. (1977 b). The development of the nematode Philometra abdominalis Nyblin, 1928 in the intermediate host. Folia Parasitologica 24, 237–245.Google Scholar
Moravec, F. (2004). The systematic status of Philometra abdominalis Nybelin, 1928 (Nematoda: Philometridae) (=a junior synonym of P. ovata (Zeder, 1803)). Folia Parasitologica 51, 75–76.Google Scholar
Moravec, F. (2006). Dracunculoid and Anguillicoloid Nematodes Parasitic in Vertebrates. Academia, Prague, Czech Republic.Google Scholar
Müller, G. and Ward, P. I. (1995). Parasitism and heterozygosity influence the secondary sexual characters of the European minnow, Phoxinus phoxinus (L.) (Cyprinidae). Ethology 100, 309–319.CrossRefGoogle Scholar
Saraiva, A., Hermida, M., Costa, M. J., Maia, C., Reis, A. R., Cruz, C. and Valente, A. (2008). First record of Philometra ovata (Nematoda) infection in Gobio lozanoi in Portugal. Journal of Fish biology 73, 2288–2292.CrossRefGoogle Scholar