The infection of black rockcod, Notothenia coriiceps, with digeneans in Admiralty Bay (South Shetland Islands) within three months, from November 2007 to January 2008, is compared with the infection in the same three months in 1978/79, based on the examination of twenty fish collected in each month. Digenea found in 1978/1979 season were more numer-ous, and more diverse. Only five digenean species, Macvicaria georgiana, Neolebouria antarctica, Lepidapedon garrardi, Genolinea bowersi and Lecithaster macrocotyle, were re-corded during both investigations, whereas three species, Neolepidapedon trematomi, Elytro-phalloides oatesi and Gonocerca phycidis, only in 1978/79. M. georgiana was the dominant species in 1978/79 and sub-dominant in 2007/08. Other digeneans were found in N. coriiceps in 2007/08 invariably together with M. georgiana. G. bowersi was the sub-dominant species in 1978/79 and the most common species in 2007/2008. Infections with Digenea belonging to other species were much less intense. Of the three rare or common species in 1978/79, the two, L. garrardi and L. macrocotyle, occurred in both seasons, whereas E. oatesi occurred only in 1978/79. Three remaining species were sporadic or absent. The overall results there-fore demonstrated that infections with almost all digenean species were less strong in 2007/08 than three decades earlier, in 1978/79. Only data on M. georgiana, G. bowersi and L. garrardi were statistically significant (p <0.05). Data on the occurrence of 14 species of Digenea in N. coriiceps from South Shetland Islands, South Orkney Islands, South Georgia, Argentine Is-lands, Melchior Islands, Adelie Land and Heard Island are given.
Bush A.O., Lafferty K.D., LotzJ.M. and ShostakA.W. 1997. Parasitology meets ecologyonits own terms: Margolis et al. revisited. Journal of Parasitology 83: 575–583.
Gon O. and Heemstra P.C. 1990 (eds). Fishes of the Southern Ocean. J.L.B. Smith Institute of Ich-thyology, Grahamstown: 462 pp.
Laskowski Z., Korczak-Abshire M. and Zdzitowiecki K. 2012. Changes in acanthocephalan infection of the Antarctic fish (Notothenia coriiceps) in Admiralty Bay (King George Island) af-ter 29 years from previous investigations. Polish Polar Research 33: 99–108.
Palm H.W., Reimann N., Spindler N. and Plötz J. 1998. The role of the rock cod Notothenia coriiceps Richardson, 1844 in the life-cycle of Antarctic parasites. Polar Biology 19: 399–406.
Prudhoe S. and Bray R.A. 1973. Digenetic trematodes from fishes. B.A.N.Z.A.R.E. Reports, Series B 8: 195–225.
Szidat L. 1965. Estudios sobre la fauna de parásitos de peces antárticos. I. Los parásitos de Notothenia neglecta Nybelin. Servicio de Hidrografia Naval, Secretaria de Marina Republica Argentina, Publico H 910, Buenos Aires: 84 pp.
Zdzitowiecki K. 1987. Digenetic trematodes from the alimentary tract of fishes off South Shetlands (Antarctic). Acta Parasitologica Polonica 32: 219–232.
Zdzitowiecki K. 1988. Occurrence of digenetic trematodes in fishes of South Shetlands (Antarctic). Acta Parasitologica Polonica 33: 155–167.
Zdzitowiecki K. 1991. Occurrence of digeneans in open sea fishes off the South Shetland Islands and South Georgia, and a list of fish digeneans in the Antarctic. Polish Polar Research 12: 55–72.
Zdzitowiecki K. 1997. Antarctic Digenea parasites of fishes. In: J.H. Wägele and J. Sieg (eds) Syn-opses of the Antarctic benthos. Vol. 8. Koeltz Scientific Books, Koenigstein: 156 pp.
Zdzitowiecki K. 2001. New data on the occurrence of fish endoparasitic worms off Adelie Land, Antarctica. Polish Polar Research 22: 159–165.
Zdzitowiecki K. and Laskowski Z. 2004. Helminths of an Antarctic fish, Notothenia coriiceps, from the Vernadsky Station (Western Antarctica) in comparison with Admiralty Bay (South Shetland Islands). Helminthologia 41: 201–207.
Zdzitowiecki K. and White M.G. 1992. Digenean Trematoda infection of inshore fish at South Georgia. Antarctic Science 4: 51–55.
Zdzitowiecki K., White M.G. and Rocka A. 1997. Digenean, monogenean and cestode infection of inshore fish at the South Orkney Islands. Acta Parasitologica 42: 18–22.
Zdzitowiecki K., RockaA., Pisano E. and Ozouf-CostazC. 1998. Alistoffish parasitic worms collected off Adelie Land (Antarctic). Acta Parasitologica 43: 71–74.