Harmful algal blooms and associated fisheries damage in East Asia: Current status and trends in China, Japan, Korea and Russia

•Noxious HAB species were Karenia mikimotoi (China), Chattonella antiqua (Japan) and Cochlodinium polykrikoides (Korea).•In China, fish kill cases were mainly caused by Karenia mikimotoi, Heterosigma akashiwo and Chattonella spp.•In Western Japan, fish kill cases were mainly caused by K. mikimotoi, Chattonella spp., Heterosigma sp. and Cochlodinium spp.•In Korea, fish kill cases were mainly recorded by Cochlodinium polykrikoides and Karenia mikimotoi.