Scientist- River Keeper- Fly
Eugene Macri is a nationally known aquatic and environmental scientist working out of Pennsylvania. He is a modern day scientific river keeper. His scientific
research and analysis has been sited in hundreds publications world wide including Fly Fisherman
Magazine, The Philadelphia Inquirer, Chambersburg Public Opinion, Carlisle Sentinel, Associated Press Wire
Services, Harrisburg Patriot, Johnstown Tribune Democrat, Detroit Free Press, Eastern Fly Fishing as well
as many other magazines, and books. Gene works with industry, watershed groups, Trout Unlimited
Chapters, fly fishing organizations, fishing clubs, state departments of natural resources, conservancies and
individuals in researching, analyzing and protecting the nation’s waters. He has his own private trout stream
which he manages as a scientist, river keeper and fly fisherman. Macri has developed wild strains of both
Rainbow and Brown Trout.
He was part of the landmark pro bono study with Dr. Jack Black, An Ecological Survey of Big Spring Creek with Emphasis on the Effects of Fish Hatchery
Effluent, that was instrumental in the closure of the hatchery whose effluent destroyed one of
the world’s greatest Brook Trout limestone spring creeks in Cumberland County (Big Spring), Pennsylvania. The
stream is now on its way to returning to its once famous heritage (click here for an article in the Bay
Journal by Macri on this subject). Gene has probably done more pro bono work for citizens in the last thirty
years than any environmental scientist in the country.
Recently, Macri was cited for his work in protecting the streams of Pennsylvania and his knowledge and skill as
fly angler in Flyfisher's Guide to Pennsylvania by Tom Gilmore. He is one of the few
aquatic ecologists with expertise in both limestone spring creeks and AMD waters (acid mine drainage). He has done extensive research on the recovery of AMD streams. Gene's areas of
expertise include water quality, aquatic biology, fishery biology, aquatic entomology, aquaculture,
environmental geology, stream geomorphology and remediation, phycology, environmental microbiology, and
Gene is also a well known illustrator, photographer, graphic artist and computer analyst. He is an acclaimed fly
fisherman and member of the famed Letort Regulars. His well known interview with the late Charlie Fox was published
by Stackpole Books in Limestone Legends.