ＩＵＣＮcategory: Least Concern
Great
cormorant is one of disliked wild bird among fishery cooperatives in Japan.
They
come to a river and a lake by a large herd or in one of them every day, and are
eating fishes except
big fishes which is not able to eat too big.
The
damage of "Ayu" which is artificially released by a local fishermen's
cooperative in particular is serious, and the amount of damage in the
country is said to be 7 billion（US＄6.5billion ) yen a year.
Ayu fishing was practiced by Samurai as long as 430 years ago. It uses very long rods (5–7 meters) and fly, but fly-casting is not required. Ayu fishing originated at least 430 years ago [1] when anglers discovered they could dress their flies with pieces of fabric and use those to fool the fish. The art became more refined as the samurai, who were forbidden to practice martial arts and sword fighting in the Edo period, found this type of fishing to be a good substitute for their training: the rod being a substitute to the sword, and walking on the rocks of a small stream good leg and balance training. "Only the samurai were permitted to fish. So, the samurai who enjoyed ayu fishing would take sewing needles and bend them themselves, and make their own flies by hand.
Ayu fishing may be done with lures or with a live decoy. As ayu fish are very territorial, they are likely to attack the live decoy fish used bait. quote from Wikipedia
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