Roundup® is a popular herbicide that contains glyphosate and has various formulations, which can differ in ingredients and toxicity levels.
Recent studies reveal that Roundup® is particularly harmful to fish, affecting their behaviors and health, even more so than pure glyphosate.
This research focused on how different Roundup® formulations impacted the livebearer fish, Jenynsia multidentata, showing that specific formulations negatively altered swimming ability, memory, and sexual activity in the fish.