Ryotsu Bay

Japanese: 両津湾 - りょうつわん
Ryotsu Bay

A bay in the northeastern part of Sado Island, Niigata Prefecture. It is located in a depression in the Kuninaka Graben between the Osado Mountains and the Kosado Hills, and the bay on the opposite southwest side is called Mano Bay. The bay is an inland sea with an average depth of 200 meters, and Mt. Kinpoku (1,172 meters) blocks the northwest winds in winter, making it a refuge port for Niigata Port. The head of the bay is formed by a sand spit made by the sand flow of the Umezu River alluvial fan, and it embraces Lake Kamo, a former sea lake, and is home to Ryotsu Port, the gateway to the island. The bay is a landing port for yellowtail, flying squid, and other fish, and a farming area for oysters, wakame seaweed, nori seaweed, and abalone.

[Hisao Yamazaki]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

新潟県佐渡島(さどがしま)北東部にある湾。大佐渡山地と小佐渡丘陵に挟まれた国仲(くになか)地溝帯の陥没部にあたり、反対側の南西部の湾は真野(まの)湾とよぶ。湾内は平均水深200メートルの内海で、金北(きんぽく)山(1172メートル)によって冬季の北西風が遮断され、新潟港の避難港に利用されてきた。湾頭は梅津(うめづ)川扇状地の流砂で砂嘴(さし)をつくり、海跡(かいせき)湖加茂湖を抱いて、島の玄関口両津港がある。湾内はブリ、スルメイカなどの水揚げ港、カキ、ワカメ、ノリ、アワビなどの養殖地となっている。

[山崎久雄]

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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