Margolis L, Boyce N P
Department of Fisheries and Oceans, Pacific Biological Station, Nanaimo, British Columbia, Canada.
J Parasitol. 1990 Feb;76(1):133-5.
The following marine species of parasites are reported from the gastrointestinal tract of pre-spawning chinook salmon, Oncorhynchus tshawytscha, taken in the Rakaia River, New Zealand: the digeneans Derogenes varicus, Lecithocladium seriolellae, Parahemiurus sp., and Tubulovesicula angusticauda; and a tetraphyllidean metacestode, possibly of the genus Phyllobothrium. A small larval nematode tentatively assigned to the genus Contracaceum was found in the intestine and may be either of marine or freshwater origin. All are species acquired in the new environment of the salmon, descendants of stock introduced from California.
在新西兰拉凯亚河捕获的即将产卵的奇努克鲑（Oncorhynchus tshawytscha）的胃肠道中，发现了以下海洋寄生虫种类：复殖吸虫类的变异异双盘吸虫（Derogenes varicus）、细纹软腹吸虫（Lecithocladium seriolellae）、副半尾吸虫属（Parahemiurus sp.）和窄尾管泡吸虫（Tubulovesicula angusticauda）；以及一种可能属于叶槽绦虫属（Phyllobothrium）的四叶目绦虫幼虫。在肠道中发现了一种暂定为对盲囊线虫属（Contracaceum）的小型幼虫线虫，其可能起源于海洋或淡水。所有这些都是鲑鱼在新环境中感染的物种，是从加利福尼亚引进种群的后代。
