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Oryzias latipes is a fish that lives in the loose brook or waterway of the flowend. A color of the body of the killifish is grayish brown on light yellow in a wild type, and there is a dark brown line to a back. By one laying eggs, I lay approximately ten eggs.Usually spawning from spring to summer. Also, since the kidney function is developed, salt tolerance is very high, and if it gets used to it, it is possible to live in seawater. Generally it is said that the medaka's life expectancy is about one year and several months.
Appearance[change | change source]
they approximately 3.5cm. There is not the measuring line. There is the dorsal fin considerably behind, and it is the next from the anterior extremity of the ventral. The ventral is long back and forth.they inhabit the loose brook or waterway of the flowend
Relationship with humans[change | change source]
The spawning period of medaka and the time when water is put in paddy field are consistent and are also called "fish of paddy field" coexisting with Japanese rice cultivation culture.
Food and water[change | change source]
they eat zooplankton and the larva mosquito larva of the mosquito.