A marine fish belonging to the order Perciformes and family Parrotfish. It is found south of the Ryukyu Islands, in Indonesia, and the Marshall Islands. Its body is long and low, with a sharply pointed front. The rear end of its caudal fin is straight, with thread-like extensions at both the top and bottom. The female's entire body is red, hence its name, but the male is green, with light green edges to its scales, and has blue-green spots on the ventral side of its head. It grows to 50 centimeters in length. It changes sex from protogynous (female to male). It is often found alone on the outer slopes of coral reefs. It spawns in pairs. It prefers to eat small algae. It tastes good. [Kunio Amano] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
硬骨魚綱スズキ目ブダイ科に属する海水魚。南西諸島以南、インドネシア、マーシャル諸島に分布する。体は低くて長く、前頭部はよくとがる。尾びれの後端は直線状で上下両端が糸状に伸びる。雌型の全身は赤いことからこの名があるが、雄型では緑色で、鱗(うろこ)の縁辺が薄い緑であり、頭部腹面に青緑色斑(はん)がある。体長50センチメートルになる。雌性先熟型(雌から雄へ)の性転換をする。サンゴ礁の外側斜面に単独でいることが多い。産卵はつがいで行われる。小型の藻類を好んで食べる。味はよい。 [尼岡邦夫] 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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