Garis besar topik


    • A spawning ground is observed for Ammodytes sp. on the seafloor at the mouth part of Mutsu Bay in Aomori Prefecture. The larvae that hatch on the seafloor around February and begin to live a plankton life in West Bay of Mutsu Bay.

    • There is unpublished data that two species of Ammodytes spp. are distributed in Mutsu Bay, but at the time of the following study, we recognized only one species (former Ammodytes personatus), so we refer to it here as Ammodytes sp.

    • When they subsequently grow into juveniles by May, they begin to live on the seafloor from the west side of the West Bay to the bottom of the mouth of the bay during the daytime (Fig. 1).