Mutsu Bay ( 陸奥湾 , Mutsu-wan ) is a bay located within Aomori Prefecture , in the northern Tōhoku region of northern Japan . It has an east-west distance of approximately 40 kilometers (22 nmi; 25 mi) and a north-south distance of approximately 40 kilometers (22 nmi; 25 mi) at its eastern end, with a total area of approximately 1,667.89 square kilometers (486.28 sq nmi; 643.98 sq mi).
5-528: The Aomori Bay ( 青森湾 , Aomori-wan ) is a bay located north of the island of Honshu, in Japan. It is considered to be part of the larger Mutsu Bay . Aomori Bay is an inner bay located to the west of Natsudomari Peninsula that protrudes in the center of the southern coast of Mutsu Bay. The bay is bordered by the Tsugaru Peninsula to the west and the harbor of Aomori to the south. Emplectonema kandai
10-634: Is a bioluminescent marine ribbon worm found in Aomori Bay at a depth of 35–40 meters, and coiled up on Chelyosoma sea squirts . The bay provided resources for the Jōmon people living at the settlements along its coastline, such as the Sannai-Maruyama Site . Mutsu Bay Mutsu Bay is the dominant English term used in English for the body of water; however it has historically been referred to as
15-627: The Gulf of Mutsu . The Japanese name for the body of water is Mutsu-wan ( 陸奥湾 ) . Mutsu Bay is bordered by the Tsugaru Peninsula to the west and the Shimokita Peninsula to the east and north. It has an east-west distance of approximately 40 kilometers (22 nmi; 25 mi) and a north-south distance of approximately 40 kilometers (22 nmi; 25 mi) at its eastern end, with a total area of approximately 1,667.89 square kilometers (486.28 sq nmi; 643.98 sq mi). The outlet of
20-514: The bay is the 14-kilometer (7.6 nmi; 8.7 mi) wide Tairadate Strait which connects Mutsu Bay to the Tsugaru Strait separating the islands of Honshu and Hokkaido . The bay has an average depth of 40 to 45 meters (131 to 148 ft), with a maximum depth of 70 meters (230 ft) near its outlet to the Tsugaru Strait. Mutsu Bay includes Aomori Bay in the southwest, Noheji Bay in
25-550: The southeast, and Ōminato Bay to the northeast. Economically, the shallow waters of the bay are an important fishery, with the cultivation of scallops predominating. Other products commercially harvested include Sea cucumber , Olive flounder and Ascidiacea . The fisheries were severely damaged by the 2010 Northern Hemisphere summer heat waves . In the year 2002, the Ministry of the Environment classified some tidal flats of
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