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Occurrence of Achtheres percarum Nordmann in English Waters

Abstract

Achtheres percarum Nordmann1 is a copepod crustacean well known as an ectoparasite in the buccal cavity and on the gills of perch, pike and pike-perch from Germany, Italy, Czechoslovakia, Finland and the U.S.S.R. as far east as Lake Baikal. Until recently, however, there has been no authentic record of it in the British Isles. Gurney2 pointed out that T. and A. Scott's record3 of it in the Ray Society monograph on British Parasitic Copepoda was an error due to a misidentification of specimens of Salmincola thymalli (a parasite of trout).

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References

  1. Nordmann, “Mik. Beitr.”, 63 (1832).

  2. Gurney, R., “Brit. Freshwater Copepoda”, 3 (Ray Soc., 1933).

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  3. Scott, T., and Scott, A., “British Parasitic Copepoda”, 2 vols. (Ray Soc., 1913).

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  4. Schäperclaus, W., “Fischkrankheiten” (3rd edit., 1954).

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HARDING, J., GERVERS, F. Occurrence of Achtheres percarum Nordmann in English Waters. Nature 177, 664–665 (1956). https://doi.org/10.1038/177664a0

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