日本に帰化した淡水魚カダヤシの生殖(英文)
1974 年 24 巻 2 号 p. 140-146
詳細
1974 年 24 巻 2 号 p. 140-146
Reproduction of the mosquitofish, a freshwater fish natively distributed in North America, was studied in two ways, viz. in the natural population in Tokyo and in the laboratory experiments especially on its environmental factors. Experimental results showed that the "critical day length" of this fish is between 12.5 and 13.0hrs. This approximately accords with the natural reproductive cycle. Reports on the reproduction of this fish are discussed.
