ABSTRACT : In the inner bays of Japan, the decrease in seaweed aquaculture production due to lack of nutrients has become a problem, and the relationship of nutrients and production of Monostroma nitidum also in the Izonoura of ​​Matoya Bay, which is of this study. The current situation was grasped by comparing the nutrient concentration including the inflowing river with the past. As a result, both DIN* (inorganic nitrogen excluding NH₄-N) and PO₄-P concentrations in the sea decreased from the past (1996-97) to the present (2014-15). DIN* is mainly caused by a decrease in river concentration, which is caused by changes in domestic wastewater treatment methods in the inflow river catchment area, and reduced fertilizer usage on farms. On the other hand, it was suggested that decrease of PO₄-P concentration caused by the decrease of supply from the bottom mud in addition to the decrease in river load. The amount of nutrient regression estimated from the abundance of benthos has decreased by 37 to 67% compared to the past, and the decrease was large compared to the decrease of 39% in river load. Furthermore, the increase in phytoplankton caused by the decrease in the eating pressure of benthos was considered to be one of the factors that decreased the nutrient concentration in the sea.

ABSTRACT : This paper studies community acceptance of ongoing offshore wind farm projects using an empirical analysis. Questionnaire survey was conducted to local residents in the Akita Yurihonjo field and the Noshiro, Mitane and Oga field, and 414 valid answers were obtained. A multiple regression analysis was used to explain the community acceptance, and a group of variables was selected based on the AIC. As a result, nine variables were chosen to interpret the community acceptance of this survey.

ABSTRACT: It is important that the measures for regional development should be considered based on the consensus of the entire region, by fully grasping and sharing the consciousnesses of the residents. So, we analyzed the differences of the consciousnesses among local residents who use their forests, lands, and the sea as production and activity sites. By hearings and questionnaires, we recognized their different consciousnesses among the residents above. As an example, many inhabitants recognized fisheries and marine products as “Regional-ness”. On the other hand, residents other than the coastal areas were not so conscious of recent changes in the environment in the sea. We also recognized their different consciousnesses in adaptation to environmental changes between the leaders and ordinary people. We considered how to resolve their different perceptions. In addition, we scenariolized their future changes in "Regional-ness" and we considered a technique that can lead to consensus building for smoother countermeasures.