"I've never seen anything like it before. Big fish too," said fisher Andrew Barker, who captured the phenomenon on video, and reported it.

When Barker shared the video to a fishing group on social media, there were calls to ban commercial fishing in the area, lamenting the waste of the "big buggers" that looked like they had been "dumped".

Fellow fisher Matt Fairbrother, who lives in the area, said it was becoming a regular occurrence.