懷卵魚 的英文怎麼說
中文拼音 [huáiluǎnyú]
懷卵魚
英文
breeding fish-
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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