A photo of Lumpfish which might explains the previous 'human turned to fish' stories. Most of the weird looking fish either by their shape or size came from deep ocean and only seldom accidentaly caught by deep sea trawlers. Below are few more examples of deep sea creatures and sharks.
Frill Shark caught and now placed for display in Japan Aquarium
Frill Shark caught and now placed for display in Japan Aquarium
Vampire Squid (Vampyroteuthis infernalis)
Based on few cases, perhaps the 'accidentaly' caught deep sea life creates the confusion to people about sea monster etc?
