这种捞网用几个半球状的铲子代替了锯齿横杆。

The dredge has several hemispheric scoops in place of the toothed bar.

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要维持过去的打渔量，更多的渔夫使用细孔网，打捞上更多的小鱼，可是由于小鱼都被捞了，鱼的总量比过去更少了。

To try and maintain their catch, more fishermen use nets with a finer mesh. As more smaller, younger fish get caught, there are even fewer fish than before.

youdao

要维持过去的打渔量，更多的渔夫使用细孔网，打捞上更多的小鱼，可是由于小鱼都被捞了，鱼的总量比过去更少了。

To try and maintain their catch, more fishermen use nets with a finer mesh. As more smaller, younger fish get caught, there are even fewer fish than before.

youdao