spawning ground (for fish) 中文意思是什麼

spawning ground (for fish) 解釋
魚的產卵場
  • spawning : 產卵
  • ground : adj 碾碎了的,磨過的,磨成粉的。 ground and polished piston 【機械工程】研磨活塞。n 1 地,地面;...
  • for : FOR f o r = free on rail 【商業】火車上交貨(價格)。1 〈表示目標、去向〉向,往。 leave [sail] f...
  • fish : n 菲什〈姓氏〉。n (pl fishes 〈集合詞〉 fish)1 魚;〈集合詞〉魚類;魚肉。 ★說魚的若干種類時用 f...
  1. 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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