Piranha are native to South American freshwater rivers.

食人鱼是一种原产于美国南部的水鱼。

Freshwater fishes live in water with very low salt concentrations.

水鱼生活在含盐量很低的水中。

Freshwater fish have the opposite problem.

水鱼有相反的问题。

One of the things I love to study are freshwater fishes.

有一样东西是我喜欢研究的——水鱼。

Typically, this dish calls for the use of freshwater fish, frequently grass carp.

一般来说，这道菜需要使用水鱼，通常是草鱼。

Ugh! the Canadian put in with distinct scorn. You can keep the freshwater fish!

呸！加拿大人带着看不起的神气说，水鱼！

There is a sustainable fishery for one of the world's largest freshwater fish.

因为这里有世界上最大的水鱼一，所以也可以发展可持续渔业。

So, when the water rises, the crops are destroyed. Also the freshwater fish disappear.

因此，当水位上升，农作物被摧毁，水鱼也会消失不见。

Over a fifth of the world's freshwater fish species of a century ago are now endangered or extinct.

目，一个世世界上的水鱼类中超过五分一濒临灭绝或已经灭绝。

So, when the water rises, the crops are destroyed.

Also the freshwater fish disappear.因此，当水位上升，农作物被摧毁，水鱼也会消失不见。

But there's also sounds of croaking of-Amazonian freshwater fish are not well characterized-what should be catfish that we're hearing.

但也有低沉的声音——亚马逊水鱼并没有很鲜明的特征——我们听到的应该是鲶鱼的声音。

Alligator gar are the second-largest freshwater fish in North America.

鳄雀鳝是北美第二大水鱼。

Freshwater fish came in third with 12.5 percent.

水鱼以 12.5% 位居第三。

Freshwater fishes have to get rid of water constantly to keep their cells from bursting, which means they pee a lot.

水鱼得不断排出水来阻止它们的细胞炸裂，这意味着它们要经常排尿。

The Bolson pupfish is a small freshwater fish found in northern Mexico.

Bolson pupfish 是一种在墨西哥北部发现的小型水鱼。

So, usually it's fish, and I'll alternate ocean fish, freshwater fish, usually broil or pan-fry.

所以，通常是鱼，我会交替使用海鱼、水鱼，通常是烤鱼或煎鱼。

For example, pound for pound, beef requires 15 times more feed to raise than carp, a freshwater fish farmed all over Asia.

例如，一磅一磅的牛肉需要比鲤鱼多 15 倍的饲料，鲤鱼是一种在亚洲各地养殖的水鱼。

In 2018, South Africa released a report on biodiversity which revealed that freshwater fish were the most threatened species group in the country.

2018年，南非发布了一份关于生物多样性的告，告显示水鱼是该国最受威胁的物种群。

Swarms of these newly freshwater fish migrate up streams and rivers, sometimes piling on top of each other to clear obstacles and predators.

这些新出现的水鱼群向溪流和河流上游迁徙，有会在彼此身上堆积起来，以清除障碍物和捕食者。

A world wildlife reports of freshwater fish featured Shelton's images which caught the attention of actor and activist Leonardo DiCaprio who shared them on Instagram.

关于水鱼的世界野生动物道中，谢尔顿的照片引起了演员兼活动家莱昂纳多·迪卡普里奥的注意，他在Instagram上分享了这些照片。