Harris Bradley P, Webster Sarah R, Wolf Nathan, Gregg Jacob L, Hershberger Paul K
Alaska Pacific University, Fisheries Aquatic Science and Technology (FAST) Laboratory, 4101 University Drive, Anchorage, AK 99508, USA.
Dis Aquat Organ. 2018 May 7;128(2):169-173. doi: 10.3354/dao03218.
This report of Ichthyophonus in common sport-caught fishes throughout the marine waters of southcentral Alaska represents the first documentation of natural Ichthyophonus infections in lingcod Ophiodon elongates and yelloweye rockfish Sebastes ruberrimus. In addition, the known geographic range of Ichthyophonus in black rockfish S. melanops has been expanded northward to include southcentral Alaska. Among all species surveyed, the infection prevalence was highest (35%, n = 334) in Pacific halibut Hippoglossus stenolepis. There were no gross indications of high-level infections or clinically diseased individuals. These results support the hypothesis that under typical conditions Ichthyophonus can occur at high infection prevalence accompanied with low-level infection among a variety of fishes throughout the eastern North Pacific Ocean, including southcentral Alaska.
这份关于阿拉斯加中南部海域常见捕捞鱼类中感染七鳃鳗虫的报告，首次记录了长蛇齿单线鱼和红拟石首鱼自然感染七鳃鳗虫的情况。此外，黑背鼻鱼感染七鳃鳗虫的已知地理范围已向北扩展至阿拉斯加中南部。在所有调查的物种中，太平洋庸鲽的感染率最高（35%，n = 334）。没有明显的高水平感染迹象或临床患病个体。这些结果支持了这样一种假设，即在典型条件下，七鳃鳗虫在整个北太平洋东部，包括阿拉斯加中南部的各种鱼类中，能够以高感染率和低水平感染的形式出现。
