2022 Volume 78 Issue 2 Pages I_31-I_36
Coastal area of Iwate Prefecture, which is close to the Shiome where the Oyashio and the Kuroshio collide is one of the highest fishery catches in Japan, mainly catching Sea Urchin and Kombu. Kombu forms seaweed bed, takes an important role in maintaining biodiversity and preserving the marine environment, supporting the ecosystem of shallow areas. However, due to the damage caused by fishery ground subsidence caused by the Great East Japan Earthquake 2011. Isoyake phenomenon continues and the catch amount tends to decline. Futhermore the aging and reduction of fishermen triggers the decrease of catches, leading to serious problems in Iwate Prefecture's fisheries productivity. In this study, we develop a technology that enables symbiosis of Sea Urchin and Kombu, and to gather Sea Urchin to create seaweed bed in a cost-effective method prescribed by the MAFF.As a result, we gained a foundational knowledge in creating a sea area to construct a symbiotic technology of Sea Urchin and Kombu, that is also safe for older fishermen to use. Also, using AI we have confirmed a method to discriminate between the concentration of Sea Urchin and efficiently installation for enhancement substrate of Kombu.
