An evaluation of Tokyo Bay as a marine space for Porphyra spp. farming: Evaluating marine spaces through quantitative examination of water environmental variables across categorized marine spaces, making use of multiple institutional data

作者：Wakita Kazumi^*; Yamakita Takehisa; Yamada Katsumasa; Yagi Nobuyuki; Kurokura Hisasht

来源：Nippon Suisan Gakkaishi, 2014, 80(5): 689-701.

DOI：10.2331/suisan.80.689

Through conducting an evaluation of Tokyo Bay as a marine space for Porphyra spp. farming, this paper demonstrates a way of evaluating marine spaces for specific sea-use objectives by quantitatively examining water environmental variables. Integrating water environmental data from three institutions, we conducted cluster analysis based on five water environmental variables utilizing GIS to categorize Tokyo Bay. As a result, Tokyo Bay was classified into six groups and visualized on a map. In order to find which of the six groups has good conditions for Porphyra spp. farming, we calculated average values, minimum and maximum values, and standard deviations of water environmental variables of the respective groups and then compared them using widely recognized growth and health criteria for Porphyra spp. As a result, one group, covering 388 km(2) in Tokyo Inner Bay as well as the Kisarazu, Futtsu Cape North, and Hashirimizu Porphyra spp. farming areas, equivalent to 56% of existing Porphyra spp. farming areas in Tokyo Bay, was identified as having good conditions for Porphyra spp. farming.

• 出版日期2014-9