The sun sets on another day in the field and it’s time to get back to the office. Tomorrow we will backpack electrofish. I love electrofishing but this time Kristen isn’t going to be there. WHAT? You might say! Sadly, more often than not Kristen has been in the office doing what project managers do – OFFICE WORK.
For those who have no idea what electrofishing is – or think it’s like fishing with dynamite – well, it’s not. We use a Halltech backpack unit. It sends out an electrical impulse that we adjust according to different parameters. For instance, some water is more conductive, and therefore we lower the settings so that we don’t harm the fish.
The idea is to lightly stun the fish just long enough to scoop them gently into the net. Once captured, they are bucketed, sorted, weighed, measured, and counted – then photographed! That’s a rough day for small fish so we handle them as carefully as possible.
Of course fish aren’t the only things in the water! Frogs are terribly sensitive to electricity and react immediately by jumping out of the water. Snakes and sirens hide in the mud. Crayfish get stunned rather easily as well. The one thing that doesn’t seem to respond at all to our shocking is ALLIGATORS!! We have come across a small gator that had been in a shallow pool that stuck to the bottom the entire time without any indication that it was affected.
The neat part is seeing what you caught. You might be surprised to find ten different species of beautiful fish in a nasty mud puddle. So before you think of shrinking puddles as nothing more than yesterday’s creek, take a look at some of the things we find!
Spotted sunfish
Greater Siren – Florida’s largest amphibian
Everglades pygmy sunfish
Golden topminnow
Sailfin Molly
That’s right – we find greater sirens!















Electro-fishing can be fun, Just don’t topple over from the weight of the backpack. We don’t get alligators here in upstate NY. Have fun!
You bring back great memories of my days in the field! I conducted electrofishing for 5 years back in the early 90′s for Florida Power & Light 500 KW Transmission Corridor mitigation at what is now the Savannahs State Preserve in Martin & St. Lucie Counties. Loved it! By the way that is a great picture of the Everglades pigmy sunfish!
I can’t take credit for the photos this time!! But I knowyou must miss the discovery – maybe you can join the Chicks one day in the field for old time’s sake!
It’s nice to watch the fishes
Thank you for liking my ‘Plants, Flowers & Building’ photos.
You have a great eye for the fantastic!
Thanks. You are fantastic to capture those.
I am jealous beyond words. Makes me want to renew my membership in NANFA and help catalog the fauna of local waterways!
TreetrunkRick – GET ON IT!!!
I had no idea what electrofishing OR Greater Sirens were until I read this blog. Sirens remind me of newts or salamanders, and after reading more about them on Wikipedia, I realized why! Thanks for teaching me something new.
Aside from alligators, what’s the strangest thing you have ever electrofished?
a siren!!!