Abstract
Samples of cod from the subarctic fjord, Balsfjord, in Norway, were collected in spring, summer and autumn from spring 1986 to spring 1987. The macroparasite fauna was investigated for seasonality in prevalence, mean intensity and abundance. Anisakis simplex had maximum mean intensity and abundance in the autumn. Echinorhynchus gadi had minimum prevalence, mean intensity and abundance in the autumn, but this was not statistically significant. None of the remaining 11 species of parasites demonstrated seasonality according to our definition.
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References
Andersen K (1993) Hysterothylacium Aduncum (Rudolphi, 1862) infection in cod from the Oslo fjord: seasonal occurrence of third- and fourth-stage larvae as well as adult worms. Parasitol Res 79:67–72
Boxhall GA (1974) The population dynamics of Lepeoptheirus pectoralis (Muller): seasonal variation in abundance and age structure. Parasitology 69:361–371
Chubb J (1977–1980) Seasonal occurrence of helminths in freshwater fishes. In: Lumsden WHR, Muller R, Baker JR (eds), Advances in Parasitology. (Vol 15–18) Academic Press, London, pp 775–778
Dobson AP, May RM (1987) The effects of parasites on fish populations-theoretical aspects. Int J Parasitol 17:363–370
Eliertsen HC, Falk-Pettersen S, Hopkins CCE, Tande K (1981) Ecological investigations on the plankton community of Balsfjorden, northern Norway. The study area, topography and environmental parameters. Sarsia 66:25–34
Eliassen JE, Grotnes P (1985) Feeding habits of cod (Gadus morhua) in Balsfjorden, northern Norway in relation to the distribution and availability of potential food species. ICES CM 1985/G:58
Halvorsen O (1972) Studies of the helminth fauna of Norway XX. Seasonal cycles of the fish parasites in the River Glomma. Norw J Zool 20:9–18
Hemmingsen W, Lombardo, MacKenzie K (1991) Parasites as biological tags for cod, Gadus morhua L., in Northern Norway: a pilot study. Fish Res 12:365–373
Hemmingsen W, Lile N, Halvorsen O (1992) The parasite fauna of cod (Gadus morhua L.) in Balsfjord, north Norway. Polar Biol 12:739–742
Hemmingsen W, Lysne DA, Eidnes T, Skorping A (1993) The occurrence of larval ascaridoid nematodes in wild-caught and in caged and artificially fed Atlantic cod, Gadus morhua L., in Norwegian waters. Fish Res 15:379–386
Hogans WE, Trudeau DJ (1989) Preliminary studies on the biology of sea lice, Caligus elongatus, Caligus curtus and Lepeoptheirus salmonis (Copepoda: Caligoida) parasitic on cage cultured salmonids in the lower Bay of Fundy. Can Tech Rep Fish Aquat Sci 1715:1–14
Holmes J (1990) Helminth communities in marine fishes. In: Esch G, Bush A, Aho J (eds) Parasite communities: pattern and processses. Chapman & Hall, London, pp 101–130
Hopkins CCE, Grotnes PE, Eliassen JE (1989) Organisation of a fjord community at 70° North: the pelagic food web in Balsfjord, Northern Norway. Rapp PV. Reun Cons Int Explor Mer 188:146–153
Jørstad KE, Pedersen SA (1986) Discrimination of herring populations in a northern Norwegian fjord: genetic and biological aspects. ICES CM 1986/H 30
Klemetsen A (1982) Food and feeding habit of cod from Balsfjord, northern Norway during a one-year period. J Cons Int Explor Mer 40:101–111
Margolis L, Esch GW, Holmes JC, Kurtis, AM, Schad GA (1982) The use of ecological terms in parasitology. Report of an ad hoc committee of the American Society of Parasitologists. J Parasitol 68:131–133
Meskal FJ (1967) Seasonal fluctuations in the population of two common trematode species from the stomach of the cod. Sarsia 26:13–20
Møller H (1974) Untersuchungen uber die Parasiten der Flunder (Platichthys flesus L.) in der Kieler Forde. Ber Dtsch Wiss Kommun 23:136–149
Polyanskii Yu I (dy1966) Parasites of the fish of the Barents Sea. Trans Zool Ins Acad Sci USSR 19
Rohde K (1982) Ecology of marine parasites. University of Queensland Press, St. Lucia.
Smith JW (1984) Anisakis simplex (Rudolphi, 1801 det. Krabbe, 1878): length distribution and variability of L3 of known minimum age from herring Clupea harrengus L. J Helminthol 58:337–340
Sæhlen OH (1950) The hydrography of some fjords in Northern Norway. Tromsø Mus Arch 70:1–93
Wilkinson (1989) SYSTAT: the system for statistics. SYSTAT, Evanson, Ill
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Hemmingsen, W., Lue, N. & Halvorsen, O. Search for seasonality in occurrence of parasites of cod, Gadus morhua L. in a fjord at 70°N. Polar Biol 15, 517–522 (1995). https://doi.org/10.1007/BF00237466
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DOI: https://doi.org/10.1007/BF00237466