フナ属における水温に対する反応のrace間差異
1968 年 34 巻 10 号 p. 876-881
詳細
1968 年 34 巻 10 号 p. 876-881
1. The comparison of cruising performance among the races of FUNA (Carassius) acclimated at 25°C for 20 days was carried out by using the same apparatus worked on previous investigation2) under the test temperature of 10° to 37°C at intervals of 3°C, and Gengoro-buna, the hybrid of Gin-buna ( ?? )×Kin-buna (×) and Gold-fish showed their maximum of cruising performance at 28°C. while European crucian carp at 31°C (Fig. 1 and Fig. 2).
2. “Amur-buna” showed the double peaks of cruising performance at 22° and 28°C, while the other group acclimated at 20°C showed double peaks at 19° and 25°C, and the clear-cut influence of different acclimation temperatures were observed (Fig. 1).
3. Gengoro-buna showed the longest time of cruising (over 40 minutes) at test temperature of 28°C.
