タイリクバラタナゴの婚姻色について

概要

論文の詳細を見る
In breeding seasons (from spring to autumn), a male of the rose bitterling, Rhodeus ocellatus ocellatus, has kept on expressing a beautiful nuptial color. The name of the fish is "rose bitterling" in English (Recently, some researchers use the word of "rosy" instead of "rose".). The fish is named rose bitterling because it shows mainly a rose color. The aim of the present report is to investigate the characteristics and the areas exhibiting the nuptial color on the body surface as fundamental data to clarify the roles of the nuptial color in mating and aggressive behavior. Except during the breeding seasons, the nuptial color of males remained faint or nearly disappeared throughout the period. In the breeding seasons, the males expressed a light red color on the whole. The margin of the dorsal fin was a pink color. The other fins, the eyes, chests and trunks were a bright yellowish red or bright purplish red color. The area from the head down to the back itself was blue, light yellowish green or bright yellow depending on the viewing angle. Two blue lateral stripes behind an operculum were present on both sides of the body. Erythrophores and the reflecting platelets in reflecting cells seemed to play significant roles for expression of the red color and the colors from the head to the back.
愛知教育大学の論文
2001-03-01