Ichthyophonus in sport-caught groundfishes from southcentral Alaska

Diseases of Aquatic Organisms
By: , and 

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Abstract

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.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Ichthyophonus in sport-caught groundfishes from southcentral Alaska
Series title Diseases of Aquatic Organisms
DOI 10.3354/dao03218
Volume 128
Issue 2
Year Published 2018
Language English
Publisher Inter-Research
Contributing office(s) Western Fisheries Research Center
Description 5 p.
First page 169
Last page 173
Country United States
State Alaska