With the arrival of the crayfish, Miller says, "Stoneflies are gone - basically wiped off the face of the Earth."
米勒说，小龙虾的到来使得“石蝇消失了，基本上就是灭绝了。”
2
They also found that the water became well aerated and that populations of important food-chain insects such as mayflies, stoneflies and caddisflies grew.
他们也发现河水的通气性良好，重要的食物链昆虫像是蜉蝣、石蝇和石蛾的族群数都增加了。
3
At the end of that time, the team found higher populations of stoneflies, mayflies and caddis flies in the screened segments than in adjacent unscreened ones.