Japanese boats losing squid fishing grounds to N. Korean ships

Suspected N. Korea boats increasingly drifting in Sea of Japan, washing ashore - The Mainichi

Japanese fisherman call for stronger measures against illegal North Korean fishing vessels - Daily NK English

Chinese illegal fishing plagues Korean waters – Maritime

Fishy business of squid vessels needs stronger regulation, study says

Japan 'ghost ships' drifting from desperate North Korea

Mystery of Japan sea's ghost ships points to North Korea, Japan

Seafood Media Group - Worldnews - Squid fishing in Korea has decreased significantly

Fishing Boat, What the Waves Brought: Japanese Tsunami Debris in North America

Investigation Inside N. Korea＞ How is the country's fishing industry doing? (1) COVID and shrinking fishing grounds major problems…Kim regime's restrictions on fishing lead some fishermen to financial collapse