相對懷卵量 的英文怎麼說
中文拼音 [xiāngduìhuáiluǎnliáng]
相對懷卵量
英文
relative brood strength- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 對 : Ⅰ動詞1 (回答) answer; reply 2 (對待; 對付) treat; cope with; counter 3 (朝; 向; 面對) be tr...
- 懷 : Ⅰ名詞1 (胸部或胸前) bosom 2 (心懷; 胸懷) mind 3 (姓氏) a surname Ⅱ動詞1 (思念; 懷念) thin...
- 卵 : 名詞(動植物的雌性生殖細胞) ovum; egg; spawn
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 相對 : 1. (面對面) opposite; face to face 2. (非絕對的) relative 3. (比較的) relatively; comparatively
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The reasons of small resource are 1st, the fish eggs is lack of sticky and most spawning ground is not comfortable for spawning ; 2nd, the fish matures about 5 years old and fecundity is in low level on absolute or relative eggs amount ; 3rd, the shape is easier for catching with tall width and thin body
黑龍江魴資源量少的原因為:黑龍江魴為產弱黏性卵的魚類,對產卵場的要求較高。黑龍江魴的性成熟年齡較大( 5齡) ,而且無論是絕對懷卵量還是相對懷卵量都較低,因此生殖力較低。黑龍江魴由於體形高而側扁,極易被捕撈。
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