I found one answer last year, at a fish farm called Veta la Palma.
我去年在一个叫Veta la Palma鱼养殖场找到了一个答案。
Across hundreds of trials on 14 different fish, Agrillo's team found they consistently discriminated 2 from 3 ( PLoS ONE, vol 4, e4786).
通过对14条食蚊鱼的上百次实验测试,Agrillo的研究小组发现这些食蚊鱼始终可以分辨出数量2和数量3(PLoS ONE, vol 4, e4786)。
Fish oil supplements may work too; at least one study found they helped depression in people with bipolar disorder.
鱼油的补充也可能发挥作用,至少,有一项调查表明鱼油可以帮助有躁郁症的病人减轻抑郁。
Only one Asian carp was found among many thousands of fish killed with poison while part of the fence was being serviced.
VOA: special.2009.12.15
The fish that,for one reason or another, that found their way past the barrier, we suppressed them and try to take them out of the system to keep them from establishing in Lake Michigan."
VOA: standard.2010.07.20
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