The eastern part of the Seto Inland Sea. Surrounded by Awaji Island, Honshu, Shodo Island, and Shikoku, it is connected to Osaka Bay and the Kii Channel across the Akashi Strait and Naruto Strait to the east, and to Bisan Seto to the west. With the exception of the Ieshima Islands in the north, there are no islands in the center. The water is generally shallow, with a maximum depth of 42 meters in the center. In particular, shallow areas such as Kanose (2 meters) and Murotsu-no-se (10 meters) are developed from Ieshima to Awaji. The Harima Plain is on the north coast, and the area from Himeji City to Aioi City has been designated as a special industrial development district, forming the Harima coastal industrial area. The seawater is severely polluted by industrial wastewater and urban wastewater, which is one of the causes of red tides every summer and causes suffering to fishermen. [Yoshiaki Sakaguchi] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
瀬戸内海の東部の海域。淡路島、本州、小豆(しょうど)島、四国に囲まれ、東は明石(あかし)海峡と鳴門(なると)海峡を隔てて大阪湾と紀伊水道に通じ、西は備讃(びさん)瀬戸へ通じている。北部の家島(いえしま)諸島を除き、中心部には島をみない。水深は一般に浅く、中央部の最大水深は42メートル。とくに家島から淡路にかけて鹿ノ瀬(2メートル)、室津(むろつ)ノ瀬(10メートル)などの浅瀬が発達している。北岸には播磨平野があり、姫路市から相生(あいおい)市にかけては工業整備特別地区に指定され、播磨臨海工業地域となっている。工業廃水や都市の生活廃水による海水汚濁がひどく、毎夏の赤潮発生の一因となって漁民を苦しめている。 [坂口良昭] 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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