Economically, the shallow waters of the bay are an important fishery, with the cultivation of scallops predominating.

[3] Other products commercially harvested include Sea cucumber, Olive flounder and Ascidiacea.

[4] 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 the eastern Mutsu Bay shoreline to be one of the 500 Important Wetlands in Japan.

[5] Pacific white-sided dolphins are regular migrants into the bay annually, and whale watching and surveys using ferries have been conducted.