We are excited to finally get to announce our newest lab publication, “Visual detection thresholds in two trophically distinct fishes are compromised in algal compared to sedimentary turbidity” in Conservation Physiology!
Over the past few summers, as part of my Ph.D. research, I have had the opportunity to work with undergraduates Andy Oppliger and Caroline McElwain on a project focusing on the visual sensitivity, or ability to determine contrast, of Lake Erie fishes. We were able to utilize the optokinetic response, or the innate response of fishes to follow a moving stimulus, to determine at what level of turbidity at which fish can no longer see. One of our goals was to determine the differences between the effects of sedimentary and algal turbidity on the visual sensitivity of Emerald Shiner and Walleye. We found that visual detection thresholds, or the point at which the fish can no longer see, were significantly lower in algal turbidity compared to sedimentary turbidity for both Walleye and Emerald Shiner.
Read the full article here: https://academic.oup.com/conphys/article/6/1/coy044/5075448