North Fork Watershed Association
Tuesday, September 21, 2021

Macroinvertebrate Sampling

On May 25, 2021, the North Fork Watershed Association and Jefferson County Conservation District collected macroinvertebrates at Jones Bridge and Egypt Bridge. The data collected indicates that the stream quality was just below good based on the macroinvertebrate count for biosurvey.


On June 26, 2020, the North Fork Watershed Association partnered with the Jefferson County Conservation District to collect macroinvertebrates underneath Jones Bridge.  Benthic macroinvertebrates are small aquatic animals and the aquatic larval stages of insects.  Macros are commonly used as indicators of the biological condition of waterbodies.  They are a reliable indicator because they spend all or most of their lives in water, are easy to collect, and differ in their tolerance to pollution.  By collecting these insects, we can make an accurate assessment of the health and quality of our streams.

With much of the world living on recycled water, we can be grateful that we have a watershed with streams rated as HQ/EV (high quality, exceptional value).  Protecting this water supply is why the Association has come together, in addition to raising watershed awareness and addressing the problems that are presently deteriorating the health of the watershed. 

Information on the data collected can be found here.  

Don Crytzer - NFWA, Lexie Arkwright - JCCD and Ron Battaglia - NFWA



Lexie Arkwright - JCCD, Don Crytzer - NFWA and Ron Battaglia - NFWA




On Friday, July 19, 2019, members of the North Fork Watershed Association were finally able to do their annual macroinvertebrate sampling at the Jones Bridge.  The high amount of rainfall this summer had caused numerous cancellations.  NFWA members, Don Crytzer, Tim Ross, Jr. and Wayne Clinger, as well as Shaun Wessell and Becky Gaston of the Jefferson Conservation District collected macroinvertebrates with nets, identified and counted them. Information on the data collected can be found here.  
On July 7, 2018, members of the North Fork Watershed Association met at the Jones Bridge to do their annual macroinvertebrate study.  Members also sampled a second site upstream from Game School Road.
Tim Ross, Sr., Tim Ross, Jr., Don Crytzer, Wayne Clinger, Ron Battaglia, of North Fork Watershed Association, as well as Dana Grabowski, JCCD, and volunteer Grace Pesselato, participated.  Macroinvertebrates were caught, identified and counted.
In July 2016, Andy Turner, Clarion University and students, did a study on unaccessed streams in the North Fork Watershed.  Grace Pesselato, JCCD, and Don Crytzer, NFWA, participated as electro-fishing was done.  After fish were identified and measured, they were released back into the stream.  
Additional photos can be found on the Jefferson Conservation District's website here