caa a22 4500 388112379 CHVBK 20180307125356.0 cr unu---uuuuu 161130e199903 xx s 000 0 eng 10.1017/S0022149X99000359 doi S0022149X99000359 pii (NATIONALLICENCE)cambridge-10.1017/S0022149X99000359 Nielsen M.E. Marine Biological Laboratory, University of Copenhagen, 5 Strandpromenaden, DK-3000 Helsingør, Denmark An enhanced humoral immune response against the swimbladder nematode, Anguillicola crassus, in the Japanese eel, Anguilla japonica, compared with the European eel, A. anguilla [Elektronische Daten] [M.E. Nielsen] The humoral immune response in the two eel species, Anguilla japonica and Anguilla anguilla against two fractions of antigens in Anguillicola crassus were studied.Within species, both eel species showed significantly elevated titres compared with controls when immunized with antigens from Anguillicola crassus.In interspecific comparison, Anguilla japonicashowed significantly elevated titres in comparison with Anguilla anguilla. Immunization of Anguilla anguillacaused a significantly decrease in the plasma levels of protein in comparison with control fish and all groups of Anguilla japonica. In contrast, Anguilla japonica showed significantly lower plasma levels of Ig in all groups compared with Anguilla anguilla.The different susceptibilities to Anguillicola crassus between the natural host, Anguilla japonica, and the naı¨ve, Anguilla anguilla, is partly due to differences in the ability of the two eel species to mount a humoral immune response. Cambridge University Press Journal of Helminthology Cambridge University Press 73/3(1999-03), 227-232 0022-149X 73:3<227 1999 73 JHL https://doi.org/10.1017/S0022149X99000359 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022149X99000359 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Nielsen M.E. Marine Biological Laboratory, University of Copenhagen, 5 Strandpromenaden, DK-3000 Helsingør, Denmark NATIONALLICENCE 773 0- Journal of Helminthology Cambridge University Press 73/3(1999-03), 227-232 0022-149X 73:3<227 1999 73 JHL CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge