トラフグ稚魚の成長と尾鰭の形状に及ぼす飼育水槽の色, 照度および飼育密度の影響 Influence of the Tank Color, Light Intensity and Rearing Density on the Growth and the Shape of Caudal Fin in Juvenile Tiger Puffer Takifugu rubripus
In order to optimumize rearing conditions for seed production of the tiger puffer <i>Takifugu rubripus</i>, the influence of tank color, light intensity, and rearing density on the growth and the normality of caudal fin was examined. Juveniles (36.0mm in total length) were reared under six different conditions for 20 days. <br>Total length, body length, body weight, and the normality of caudal fin reared in a black tank, at low light intensity (1, 000Lx), or at low rearing density (300 individuals per m<sup>3</sup>) were higher than those of the fish reared in white tank, at high light intensity (4, 000Lx), or at high rearing density (600 individuals per m<sup>3</sup>), respectively. In addition, the best result was obtained when fish were reared under combined rearing conditions in a black tank, at low light intensity, and at low rearing density.
日本水産学会誌 63(5), 734-738, 1997-09-15