Cormorant fishing is a traditional fishing technique in which fishermen use trained cormorants to catch fish in rivers. Historically, cormorant fishing has taken place in Japan and China, as well as Greece, North Macedonia, and briefly, England and France. It is first attested as a method used by the ancient Japanese in the Book of Sui, the official history of the Sui Dynasty of China, completed in 636 CE.
Though cormorant fishing once was a successful enterprise, its primary use today is to serve the tourism industry. This artisan fishing method is no longer used anywhere except southwestern China, where it is also under threat from competition from more modern methods..
To control the birds, the fishermen tie a loose snare near the base of the bird's throat. The snare does not stop the bird from swallowing small fish, but prevents the bird from swallowing larger fish, which are held temporarily in their gullet. When a cormorant has caught a fish in its throat, the fisherman brings the bird back to the boat and has it regurgitate the fish out.
The types of cormorants used differ based on the location. In Gifu, Japan, the Japanese cormorant (Phalacrocorax capillatus) is used; Chinese fishermen often employ great cormorants (P. carbo). Darters (birds in the genus Anhinga), which are close relatives of cormorants, are also used for this fishing technique on occasion.
Originally of japanese method
Cormorant fishing, called ukai (鵜飼) in Japanese, takes place in 13 cities in Japan. The most famous location is Gifu, Gifu Prefecture, home to cormorant fishing on the Nagara River, which has continued uninterrupted for the past 1,300 years.Cormorant fishing in Seki also takes place on the Nagara River, but it is called 'Oze cormorant fishing' (小瀬鵜飼 Oze Ukai). Only the cormorant fishing masters in Gifu and Seki are employed by the emperor and called Imperial Fishermen of the Imperial Household Agency.
Cormorant fishing in Japan, originally, has been done as one of the main fishing methods for ayu(sweetfish) fishing. However, since it is "unique" (as it uses birds and skillful techniques), viewing cormorant fishing, since the Heian period, has been one of amusements for aristocratic classes and warlords in Japan.
It is Oda Nobunaga who started showing cormorant fishing for hospitality in Japan. In 1568, Oda Nobunaga, welcoming a messenger from Takeda Shingen, made a new boat and invited the messenger as a guest to show cormorant fishing. In adition, he chose ayu (sweetfish) with his own eyes and sent it to the guest as a gift at a later date. Tokugawa Ieyasu, after the Summer Campaign (1615) of Siege of Osaka, visited Gifu, enjoyed seeing cormorant fishing and eating ayu. Thus began to offer ayu sushi to the Shogun, and masters of cormorant fishing were allowed to move freely over the river
Documentary:
He dances for his cormorants - The Lords of the Animals In China, Zongman has a dozen cormorants that fish for him, obey his voice, and follow him wherever he goes. Cormorants bring back several kilos of fish every day.
Source: Wiki