Winter Stonefly Search 2012

Winter Stonefly Search 2012

Volunteers braved the snow and cold to search local streams for winter stoneflies on January, 21st as part of CRWC’s annual Stonefly Search.

The stonefly is an aquatic insect that lives in streams and rivers during its juvenile life-stages. The insect is very sensitive to disturbance in the stream or changes in water quality, and their presence in a river indicates good water quality.


There are a variety of different stoneflies that can inhabit a river, but two unique types of stoneflies have adapted to be more active and emerge as adults during colder months:

Capniidae: small winter stonefly

Capniidae: small winter stonefly

Taeniopterygidae: (broadback) winter stonefly

Taeniopterygidae: (broadback) winter stonefly

Download: Stonefly 2012


Below are locations and results of the winter stonefly search. CRWC aims to sample more locations each year to increase the amount of data and information collected on these unique organisms. More information will help us further understand the conditions of our streams throughout the watershed.

Stream Location Water Temp (°F) Stonefly Families Present Estimated Abundance
Avon Creek CRWC Office N/A No stoneflies found Not Present
Clinton River CRWC Office N/A No stoneflies found Not Present
Clinton River Yates Park,
Rochester Hills
31.6 Capniidae Rare
Paint Creek Kings Cove Dr.,
Rochester Hills
32 Capniidae Common
Paint Creek Clarkston Rd.,
Orion Twp.
34.7 Capniidae Common

More information about the Stonefly Search and the Adopt-A-Stream volunteer water quality monitoring program can be found at: http://www.crwc.org/programs/adoptastream/

A map of sampling locations can be seen at: http://www.crwc.org/programs/adoptastream/monitoring/