08/20/2026
Will here from the science team!
Fishy Fridays are back🐟🐟!!!!! Every Friday throughout August the science team, with the help of USFWS, survey our backwater sloughs. We do this to examine the fish populations within these unique waterways, specifically looking at the plains topminnow (Fundulus sciadicus, slide 2 and 5). The plains topminnow is a small minnow species which is at risk within its home range. Some other species we find are brook stickleback (Culaea inconstans), brassy minnow (Hybognathus hankinsoni), and invasive western mosquitofish (Gambusia affinis).
To survey sloughs, a lot of people are needed! First, one person operating a YSI Pro 1020 water quality meter reads off the dissolved oxygen levels, pH, and water temperature (slide 4). Another person records the turbidity (clearness of the water) using a turbidity tube. Next, we have two people operating the seine net, running one direction on the slough. Coming to meet them, multiple people use hand nets to draw the fish toward the seine net. Without the hand net people, the fish could easily slip into the vegetation away from our seine net. Once we have scooped up our fish (and a ton of vegetation), we start counting! While maybe 5-6 people help count, one person surveys for presence/absence of target invertebrates (dragonflies/damselflies, mayflies, and caddisflies to name a few) and soil texture while another measures the water depth, bank slope, dominant vegetation present, and slough width. While all of these activities occur there is also one person responsible for recording all of the data. Like I said, a lot of people are needed!!
I cannot wait to see what fish we find this Friday!!
📷Drone shots thanks to Josh Weise
🐟Featured throughout the photos are Abraham Kanz (director of conservation research), Bethany Ostrom (lead biologist), Elsa Forsberg (wildlife biologist), Elizabeth Martin (science intern), Clara Freese (science fellow), Ben Jones (range manager), Jaden Jardine (land management intern), Grace Trankina (USFWS biologist), Matt Rabbe (USFWS biologist), and myself