Understanding Aquatic Insect Emergences

Entomologist Maggie Heumann explains why understanding aquatic insects is essential for fly-fishing success.

Maggie Heumann, an entomologist and Trout Unlimited’s Director of Engagement Partnerships, talks about voltinism: the number of broods or generations of an organism a year.

With regard to insects, or even other aquatic organisms, understanding voltinism–the frequency of a species’ life cycle–is essentially like having the master schedule for a river’s “buffet line.”