With the decline in fishery production and progress of the aging of fishermen, facilities that enable safe fishing activities for the elderly and systematic production have been called for in the fishing industry in recent years. While high-quality fukuro funori (Gloiopeltis furcata) produced in the coastal waters off Kamiiso Town,...
In early spring, spear squids (Loligo bleekeri) lay their egg capsules on top of hollows in reefs and cavities in structures of Hokkaido ports on the Sea of Japan. Therefore, the role of port structures is important for propagation of spear squid. Research on the spawning conditions of spear squids...