Over a fifth of the world's freshwater fish species of a century ago are now endangered or extinct. Half the world's wetlands have also disappeared over the past 100 years.
一个世纪以来，全球湿地消失了一半，淡水鱼种类中超过五分之一已经灭绝或濒临灭绝。
Which is the example of the freshwater fish in salt water, or the saltwater fish in fresh water.
很典型的例子，淡水鱼放在在盐水中，或者咸水鱼放在淡水中。
The science, art, and business of cultivating Marine or freshwater food fish or shellfish, such as oysters, clams, salmon, and trout, under controlled conditions.
水产养殖在控制条件下，科学、艺术及商业性培植海水或淡水食用鱼或介壳类，如牡蛎、蛤、鲑及鳟鱼。
The science, art, and business of cultivating Marine or freshwater food fish or shellfish, such as oysters, clams, salmon, and trout, under control led conditions.
水产养殖在控制条件下，科学、艺术及商业性培植海水或淡水食用鱼或介壳类，如牡蛎、蛤、鲑及鳟鱼。
Pond fish culture yielded 2550 tonnes, or 6 per cent, of freshwater fish for local consumption.
年内，塘鱼总产量为2550公吨，占本地淡水鱼消耗量的6%。
Any of various North American fishes, such as a freshwater whitefish of the genus Coregonus or a Marine fish of the genus Kyphosus.
白鲑北美鱼类的一种，如白鲑属的淡水鲑或？属的海洋鱼类。
Used for breeding of young shrimp and raising of grown shrimp, be acceptable widely for propagate and breed of shrimp, fish and crab in sea or freshwater.
用于虾苗培育和成虾养殖，广泛适用于海水、水虾类、类、类繁殖、殖生产。
The fish you buy in the grocery store is either caught in the wild - an ocean, river or freshwater lake - or raised on a fish farm.
鱼杂货店买了或者是在野外捕获-海洋，河流或湖泊淡水-或农场长大的鱼。
Used for breeding of young shrimp and raising of grown shrimp, be acceptable widely for propagate and breed of shrimp, fish and crab in sea or freshwater.
在养殖产品起捕后，由于海流作用，深水网箱养殖海区的水质很快就达到与未开展养殖海区一致。
Used for breeding of young shrimp and raising of grown shrimp, be acceptable widely for propagate and breed of shrimp, fish and crab in sea or freshwater.
在养殖产品起捕后，由于海流作用，深水网箱养殖海区的水质很快就达到与未开展养殖海区一致。
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