1.
The reproductive glands of male fishes when filled with this fluid.
（雄鱼的）生殖腺充满精液的雄鱼生殖腺
2.
The struggling brooder finally releases his brood.
挣扎的雄鱼终于释放出他的小鱼。
3.
Keeping several females will reduce the level of aggression any particular one will receive.
饲养几条雌鱼是为了分散雄鱼对此鱼的攻击。
4.
Males' coloration is also often more bold than females' because they like to show it off when courting females.
雄鱼的色彩显得更为雄浑，特别适当它们追逐雌鱼的时候。
5.
Keep only one male with several females.
只可将一条雄鱼和几条雌鱼饲养在一起。
6.
This fish needs to be the king of the tank in order to thrive.
否则，雄鱼将失去鲜艳的体色，停止进食。
7.
Males will also grow at a faster rate( generally) and display their adult colors sooner.
雄鱼生长的较雌鱼快，成熟后发出色彩也比雌鱼早。
8.
"Guppies are hardy, energetic, easily kept, and prolific. The male, smaller and much more Brightly coloured than the female, grows to about 1.5 in. (4 cm). "
适应性强,耐活、易养、多产。雄鱼较雌鱼体色更鲜艳,长约4公分﹔
9.
Adult males will also tend to have a deeper body, whereas females appear more slim and streamline.
雄鱼的体型较为纵深，雌鱼则比较纤细和富有流线型。
10.
Preliminary Study on Crossbreeding of Male Paralichthys dentatus and Female Paralichthys lethostigma
大西洋牙鲆雄鱼与漠斑牙鲆雌鱼杂交的初步研究
11.
Males are both boisterous and aggressive in defending their territories; therefore, these species need lots of room.
在保卫领地的时候，雄鱼是即暴躁又好斗的。
12.
Preparation of pseudo-milter and induction of all-female triploid in golden rainbow trout Oncorhynchus mykiss
金鳟伪雄鱼的制备及全雌三倍体的诱导
13.
The bottom area should be wide and open, with approximately30-50% of the bottom being just sand.
底部必须铺有沙子，暗色的沙子比较能体现出雄鱼艳丽的体色。
14.
male salmon that has recently spawned.
刚刚产过卵的雄鲑鱼。
15.
Analysis on fatty acid composition in muscle of fry,male and female parent fishes (Pelteobagrus vachelli)
江黄颡鱼鱼苗与雌雄亲鱼肌肉脂肪酸组成分析
16.
The younger male will encourage the dominant male to show off his colors more often than otherwise.
雄性亚成鱼可以刺激雄性成鱼更加充分的展现自己的体色。
17.
The maturity rate of parent fishes was 83 8% in female and 92 1% in male.
雌雄亲鱼的成熟率为83 8%和 92 1%。
18.
The Growth of the Head Morphological Traits of Male and Female Pseudobagrus Fulvidraco;
雌雄两性黄颡鱼头部形态特征的增长