Unisexuality occurs in some fish species.
有些鱼种是雌雄同体的。
The number of fish species in Poyang Lake has already fallen by half.
鄱阳湖鱼的种类已经减少了一半。
There is difference of fish species component between locations.
各站位之间鱼类种类具有一定的差异性。
It can move across land at night, reaching water no other fish species has colonised.
它能在夜间穿过陆地到达没有其他鱼种繁殖的水域。
There are about 30 000 species of fish in the world.
世界上约有3万种鱼。
Found: a new species of "hopping" fish off the coast of Indonesia.
新发现：在印度尼西亚海岸发现了一个新物种——一种“跳跃”的鱼。
There are about 50 species of flying fish, too.
世界上有很多种双栖鱼。同样，也有大约50种可以飞行的鱼。
Here are some plant species that will help maintain pond health and provide a source of food for fish.
以下是一些植物物种，这将有助于维持池塘健康，并提供鱼类的食物来源。
I have raised many species of fish.
我养过很多种种类的鱼。
The species of fish are numerous.
鱼的种类很多。
This is an extinct species of fish.
这是一种已经灭绝的鱼。
This is an extinct species of fish.
这是一种已经灭尽的鱼。
There are spacious water area, abundant resources and various fish and bird species.
场地范围内水域宽阔，资源丰富，鱼类、鸟类品种丰富，数量众多。
These species, of course, are the food source of the fish that were initially overfished .
这物种当然就是最初被过度捕捞的鱼的食物。
There are over 29000 different species of fish which is fairly impressive.
有超过29000种令人印象相当深刻的不同种类的鱼。
Seeing over a thousand species of fish is part of the fascination of the reef.
礁石的部分魅力就在于可以看到上千种鱼。
Just six species make up over half the total fish catches.
六种鱼占了总获量的一半以上。
As mentioned above, the fish nematodes from Yellow Sea has a low species richness.
异尖科宫脂属线虫为黄海鱼类线虫的优势种群。
There are over 200 species of fish.
有二百多个品种的鱼。
The reason for this is that this particular species of tropical fish is actually …
这样做的理由是，这一特定种类的热带鱼其实是…
Several species of fish can breathe air and crawl on land.
世界上有很多种双栖鱼。
Several species of fish can breathe air and crawl on land.
世界上有很多种双栖鱼。
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