A graduated cylinder is a type of laboratory equipment used to measure precise volumes of liquid between 25-2000ml. In this video, Justine Siew explains how a graduated cylinder was used to immobilize baby zebrafish in order to study their neural reactions to sound! Justine also outlines pro-tips on how to actually use a graduated cylinder in the lab.

Justine Siew produced this video while she was a student at Durham Technical Community College. This video is copyright 2021 Durham Technical Community College, posted with permission. Funding for this video was generously provided by the Durham Tech Foundation.

The paper about observing zebrafish neural reactions to sound is here: Poulsen, R. E., Scholz, L. A., Constantin, L., Favre-Bulle, I., Vanwalleghem, G. C., & Scott, E. K. (2021). Broad frequency sensitivity and complex neural coding in the larval zebrafish auditory system. Current Biology, 31(9), 1977-1987.e4. https://doi.org/10.1016/j.cub.2021.01...