01 / 3 · Practical Engineering
Impoundments across rivers affect the aquatic environment.
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But whenever their egg opens up, the mayfly inside quickly finds its way into fresh water, and it’s in this aquatic, nymph stage that mayflies spend the majority of their lives.
In many cases they are no longer serving an important role, and removing dams can help restore ecosystems and improve connectivity for aquatic species in addition to removing a hazard.
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