無節幼體眼 的英文怎麼說
中文拼音 [wújiéyòutǐyǎn]
無節幼體眼
英文
nauplius eye-
At 27 - 29, the process needs about 50 hours. at 21 - 22 degrees the process needs approximately 110 hours. after molting for the sixth time, the larva enters the zoea stage
無節幼蟲蟲隨著脫皮體形漸大,共有六期,第一期到第六期所需時間依水溫高低有所不同,通常在27 29之下約50小時, 21 22之下則約需110小時,于第六次脫皮后即進入眼幼蟲期zoea stage 。The first stage is characterized by the body becoming bigger and more elongated than in the nauplius stage ; the head and thorax, however, remain unchanged. during this stage direct heat and light from the sun is detrimental to the development of the larvae. under direct sunlight they become deformed and are unable to absorb nutrients
第一期,其形態特徵為體長比無節幼蟲期大而伸長,頭胸部與形態和前期同,此期最怕太陽直射,在太陽直射下,飼育的水蚤幼蟲眼幼蟲,身體彎曲成為畸形,不攝食。
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