Niihori Maki, Mogami Yoshihiro, Naruse Kiyoshi, Baba Shoji A
Graduate School of Humanities and Sciences, Ochanomizu University.
Biol Sci Space. 2003 Oct;17(3):198-9.
JUSTSAP (Japan-US Science, Technology and Space Application Program) Medaka fish experiment was carried out as a part of STARS (Space Technology and Research for Student) experiment, a space shuttle mission, STS-107 in January 2003. Four eggs laid on earth under artificially controlled environment were put in a closed ecological system, AHAB (Aquatic Habitat), and launched by Space Shuttle Columbia. For the control experiment, four eggs were put in the AHAB and remained on the ground. There was no remarkable difference in the time course of the development. In ground experiment embryos were observed to rotate in the egg membrane, whereas in flight unit they did not rotate. One egg hatched out on L (Launch) +8 days in flight unit. Four eggs hatched out in ground unit. Fry in flight unit was observed to face its back usually to the camera with little swimming movement. Fry in ground unit were observed to move actively and also to control their posture with respect to gravity vector.
日美科技与太空应用计划（JUSTSAP）青鳉鱼实验是2003年1月航天飞机任务STS - 107“太空技术与学生研究”（STARS）实验的一部分。在人工控制环境下于地球上产下的四枚卵被放入一个封闭的生态系统“水生栖息地”（AHAB）中，并由哥伦比亚号航天飞机搭载升空。作为对照实验，另外四枚卵被放入AHAB中并留在地面。发育的时间进程上没有显著差异。在地面实验中，观察到胚胎在卵膜内旋转，而在飞行装置中的胚胎则不旋转。飞行装置中的一枚卵在发射（L）+8天时孵化。地面装置中的四枚卵孵化。观察到飞行装置中的幼鱼通常背部朝向摄像头，很少有游动动作。地面装置中的幼鱼则被观察到能积极游动，并且还能相对于重力矢量控制自己的姿势。
