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日本における主要水揚漁港の魚種構成による分類と分布パターン Classification and Distribution Pattern of Main Ports of Fish Landing in Japan by Knd of Fish 篠原, 秀一 SHINOHARA, Shuichi open access 主要漁港 水揚 main ports fish landing The purpose of this study is to consider types and distribution of main ports of fish landing III Japan through landed quantity by kind of fish Main ports of fish landing are identified as 235 fishing ports with fish landing of more than 5,000 tons in 1984, when Japanese fishermen caught the largest quantity of fish in the past (Table 1 and Fig. 1). By means of factor analysis. twenty variables about landed quantity of 235 ports (Table 2) are summarized into seven factors (Table 3). Landing of large quantity of sardines or mackerels or saury represented in the first factor is the most commonly chracteristic to the main ports of fish landing in Japan. The ports are classified into ten types, by means of cluster analysis based on seven factors, named from A to J (Fig. 2, Tables 4 and 5). 東京地学協会 1992-01-01 jpn journal article VoR http://hdl.handle.net/10295/827 https://air.repo.nii.ac.jp/records/1010 地学雑誌 101 1 38 58 https://air.repo.nii.ac.jp/record/1010/files/shinohara4.pdf application/pdf 1.7 MB 2017-02-16