{"id":7355,"date":"2025-07-07T10:33:26","date_gmt":"2025-07-07T01:33:26","guid":{"rendered":"https:\/\/sushiuniversity.jp\/basicknowledge\/?post_type=jetpack-portfolio&p=7355"},"modified":"2025-10-27T16:58:38","modified_gmt":"2025-10-27T07:58:38","slug":"oilfish-baramutsu","status":"publish","type":"jetpack-portfolio","link":"https:\/\/sushiuniversity.jp\/basicknowledge\/oilfish-baramutsu","title":{"rendered":"Oilfish (Baramutsu)"},"content":{"rendered":"
\"A

The appearance of Oilfish (Baramutsu)<\/p><\/div>\n

Common name: Oilfish, Scourer, Scourfish, Tapioca fish, Castor oil fish, Escolar<\/span>, Night Barracuda, Plain-tail<\/span><\/p>\n

Japanese common name: Oilfish (\u8594\u8587\u9be5)<\/span><\/p>\n

Taiwan\u00a0common name: \u8594\u8587\u5e36\u9c06\u3001\u6cb9\u9b5a\u3001\u9ed1\u76ae\u725b\u3001\u7c97\u9c57\u4ed4\u3001\u9f8d\u9c48\u3001\u5713\u9c48<\/span><\/p>\n

Chinese common name: \u68d8\u9c57\u86c7\u9bd6<\/span><\/p>\n

French common name: Rouvet<\/span>\u00a0<\/span><\/p>\n

German common name: \u00d6lfisch<\/span><\/p>\n

Italian common name: Ruvetto<\/span><\/p>\n

Spanish common name: Escolar, Escolar clavo, Escolar Viol\u00e1ceo, Lija, Pez Aceite, Pez Aceitoso, Pez Purgante<\/span><\/p>\n

Portuguese common name: Escolar, Peixe-chocolate, Peixe-escolar<\/span><\/p>\n

Russian\u00a0common name: \u0420\u0443\u0432\u0435\u0442\u0430 \u0434\u0440\u0430\u0433\u043e\u0446\u0435\u043d\u043d\u0430\u044f, \u0440\u044b\u0431\u0430-\u043c\u0430\u0441\u043b\u043e<\/span><\/p>\n

Scientific name: Ruvettus pretiosus Cocco, 1833<\/span><\/span><\/p>\n

Feature:<\/span><\/p>\n

Oilfish (Baramutsu) is distributed in the warm waters of the tropical regions of the Pacific, Indian, and Atlantic Oceans. It inhabits depths of 180\u2013550 meters. While alive, its body color is violet or purple-brown, but it quickly turns dark brown after death. It can reach a maximum length of nearly 3 meters, but typically measures 1.5\u20132 meters.The body is spindle-shaped, with a large head and large eyes and mouth. As its name suggests, it is covered in hard, sharp scales resembling rose (bara) thorns. It resembles Escolar (Aburasokomutsu) in appearance. In English-speaking countries, Oilfish is sometimes referred to as Escolar, leading to confusion.<\/span><\/p>\n

(Baramutsu) and Escolar (Aburasokomutsu) are often caught as bycatch in longline fishing for bonito and tuna. These fish are popular due to their high fat content and are in demand overseas.<\/span><\/p>\n

Most of the oil in this fish is composed of wax esters, which cannot be digested by the human body. In Japan, Oilfish (including Escolar) has been banned from sale under the Food Sanitation Law since 1970 (Escolar since 1981) by the Ministry of Health, Labour and Welfare. On the other hand, Skilfish (Aburabouzu)<\/span><\/a>, a relative of the silver cod, is not banned from sale because its fat components are triglycerides (substances that make up the majority of fish, meat, and edible oils), and it can be consumed without any issues.<\/span><\/p>\n

Nigiri sushi detail: Oilfish (Baramutsu) Nigiri sushi<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Common name: Oilfish, Scourer, Scourfish, Tapioca fish, Castor oil fish, Escolar, Night Barracuda, Plain-tail Japanese common name: Oilfish (\u8594\u8587\u9be5) Taiwan\u00a0common name: \u8594\u8587\u5e36\u9c06\u3001\u6cb9\u9b5a\u3001\u9ed1\u76ae\u725b\u3001\u7c97\u9c57\u4ed4\u3001\u9f8d\u9c48\u3001\u5713\u9c48 Chinese common name: \u68d8\u9c57\u86c7\u9bd6 French common name: Rouvet\u00a0 German common name: \u00d6lfisch Italian common name: Ruvetto Spanish common name: Escolar, Escolar clavo, Escolar Viol\u00e1ceo, Lija, Pez Aceite, Pez Aceitoso, Pez Purgante Portuguese common name: Escolar, Peixe-chocolate, Peixe-escolar Russian\u00a0common name: \u0420\u0443\u0432\u0435\u0442\u0430 \u0434\u0440\u0430\u0433\u043e\u0446\u0435\u043d\u043d\u0430\u044f, \u0440\u044b\u0431\u0430-\u043c\u0430\u0441\u043b\u043e Scientific name: Ruvettus pretiosus Cocco, 1833 Feature: Oilfish (Baramutsu) is distributed in the warm waters of the tropical regions of the Pacific, Indian, and Atlantic Oceans. It inhabits depths of 180\u2013550 meters. While alive, its body color is violet or purple-brown, but it quickly turns dark…<\/p>\n","protected":false},"author":2,"featured_media":7357,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":[],"jetpack-portfolio-type":[166],"jetpack-portfolio-tag":[19],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/sushiuniversity.jp\/basicknowledge\/wp-json\/wp\/v2\/jetpack-portfolio\/7355"}],"collection":[{"href":"https:\/\/sushiuniversity.jp\/basicknowledge\/wp-json\/wp\/v2\/jetpack-portfolio"}],"about":[{"href":"https:\/\/sushiuniversity.jp\/basicknowledge\/wp-json\/wp\/v2\/types\/jetpack-portfolio"}],"author":[{"embeddable":true,"href":"https:\/\/sushiuniversity.jp\/basicknowledge\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/sushiuniversity.jp\/basicknowledge\/wp-json\/wp\/v2\/comments?post=7355"}],"version-history":[{"count":9,"href":"https:\/\/sushiuniversity.jp\/basicknowledge\/wp-json\/wp\/v2\/jetpack-portfolio\/7355\/revisions"}],"predecessor-version":[{"id":8127,"href":"https:\/\/sushiuniversity.jp\/basicknowledge\/wp-json\/wp\/v2\/jetpack-portfolio\/7355\/revisions\/8127"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sushiuniversity.jp\/basicknowledge\/wp-json\/wp\/v2\/media\/7357"}],"wp:attachment":[{"href":"https:\/\/sushiuniversity.jp\/basicknowledge\/wp-json\/wp\/v2\/media?parent=7355"}],"wp:term":[{"taxonomy":"jetpack-portfolio-type","embeddable":true,"href":"https:\/\/sushiuniversity.jp\/basicknowledge\/wp-json\/wp\/v2\/jetpack-portfolio-type?post=7355"},{"taxonomy":"jetpack-portfolio-tag","embeddable":true,"href":"https:\/\/sushiuniversity.jp\/basicknowledge\/wp-json\/wp\/v2\/jetpack-portfolio-tag?post=7355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}