Stonefly Search

Winter stoneflies (Capniidae and Taeniopterygidae) are important biotic indicators of water quality. Their increasing numbers are one way we can tell that water quality has greatly improved from historical conditions in the early and mid-1900’s.

Stoneflies reproduce and grow in colder months, avoiding predators and increasing their chances of surviving into adulthood. Stonefly nymphs are extremely sensitive to water pollution and develop in cool, well-oxygenated water. The presence of the stonefly is an indicator of good water quality, and their absence in areas where they previously occurred may indicate pollution.

The Search - Each winter, teams of volunteers canvass winter stonefly populations at locations along the Clinton River and its tributaries. This fun and educational event is free, family-friendly, and open to the public - no experience required!

HOW IT WORKS

Volunteers all meet at the Clinton River Watershed Council office at 9:00 a.m. on February 17th. Based on previous experience, volunteers will receive a short training or team leader refresher to prepare for the search.

Led by Team Leaders, volunteers will split into teams to survey sites throughout the watershed to look for this thriving cold-weather creature. Team Leaders help their groups coordinate and follow site procedures to ensure that stonefly data is being collected safely and consistently.

THE STONEFLY SEARCH CONSISTS OF:

• Enjoying the water in cold weather
• Collecting samples from the river using a net
• Finding macroinvertebrates in the samples

REGISTRATION

Let us know that you plan to attend: registration is required to participate in the Stonefly Search. Register below.

TRAINING

Anyone interested in participating in the Stonefly Search is welcome to attend. No formal experience is required. The event begins with instructions for new volunteers and a refresher for team leaders and experienced participants.