It is not only tuna but sardine, mackerel and other fish that are in decline.

不仅仅是金枪鱼，沙丁鱼，鲭鱼和其他鱼类也在减少。

youdao

After he had caught five fish, I only caught one small fish.

在他已经抓到五条鱼后，我才抓到了一条小鱼。

youdao

I'll only cook fish if the guts have been removed.

鱼若已收拾干净，我只需烧一下即可。

《牛津词典》

The staples of the Volumetrics plan -- water-rich foods like brothy soups, fruits and vegetables, whole grains, low-fat dairy, lean meat, and fish -- not only help control hunger by filling you up, but they also do it on fewer calories.

CNN: Eat more and weigh less with Volumetrics

Salmon is a big business--in fact, the only business--for Tassal, which sells most of its fish in its booming home market in Australia.

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According to the report, in these areas fish numbers were only one-quarter what they were in places with either higher or lower levels of development.

CNN: Beating poverty could save coral reef fish, report says