Strauss V, Claussen D, Jäger M, Ising S, Schnieder T, Stoye M
Institute of Parasitology, School of Veterinary Medicine, Hannover, FRG.
Zentralbl Veterinarmed B. 1991 Nov;38(9):641-8. doi: 10.1111/j.1439-0450.1991.tb00923.x.
Between August 1988 and January 1989 110 common seals found dead along the coast of Lower Saxony were investigated for the occurrence of trematodes, cestodes and acanthocephala. Two fluke species, Cryptocotyle lingua Creplin, 1825 and Phagicola septentrionalis Van Den Broek, 1967, two tapeworm species Diphyllobothrium cordatum Leuckart, 1863 and Diphyllobothrium elegans Krabbe, 1865, and the acanthocephala species Corynosoma strumosum Rudolphi, 1802 were found. Phagicola septentrionalis and the cestodes were always found together with Cryptocotyle lingua. The prevalence of Phagicola septentrionalis, the diphyllobothriids and the acanthocephala increased with increasing age of the pinniped host. The worm counts of all species appeared to increase with increasing age of the host. The adult male seals were more often infested with Phagicola septentrionalis and cestodes than the female adults and the younger pinnipeds. There was no correlation between blubber thickness of the seals and parasitic infection. The prevalence of the diphyllobothriids and the intensity of the infection with acanthocephala were higher in seals found in the eastern part of the Wadden Sea.
1988年8月至1989年1月期间，对下萨克森州海岸发现的110头死亡普通海豹进行了吸虫、绦虫和棘头虫感染情况调查。发现了两种吸虫，即1825年的舌隐孔吸虫（Cryptocotyle lingua Creplin）和1967年的北方食吸虫（Phagicola septentrionalis Van Den Broek），两种绦虫，即1863年的心形裂头绦虫（Diphyllobothrium cordatum Leuckart）和1865年的优美裂头绦虫（Diphyllobothrium elegans Krabbe），以及1802年的瘤头吻棘头虫（Corynosoma strumosum Rudolphi）。北方食吸虫和绦虫总是与舌隐孔吸虫一起被发现。北方食吸虫、裂头绦虫和棘头虫的感染率随鳍足类宿主年龄的增加而升高。所有种类寄生虫的虫体数量似乎都随宿主年龄的增加而增加。成年雄性海豹比成年雌性海豹和幼年鳍足类动物更常感染北方食吸虫和绦虫。海豹的脂肪厚度与寄生虫感染之间没有相关性。在瓦登海东部发现的海豹中，裂头绦虫的感染率和棘头虫的感染强度更高。
