Christopher L. Crutchfield

After six years of building cameras, chasing fish, and writing more calibration code than I care to admit, it’s time. I’ll be defending my Ph.D. thesis on Thursday, November 19, 2026. [Read More]

US 2025/0315981 A1, “Imaging Systems and Methods for Dimension Measurement Independent of Laser Alignment,” published today. It’s the patent application behind FishSense-Lite, filed by the University of California with Ryan Kastner, Kyle Hu, Nathan Hui, Brice Semmens, and me as inventors. [Read More]

On a California Collaborative Fisheries Research Program (CCFRP) survey, volunteer anglers do the fishing, but every fish they land goes to a trained scientist on deck. The scientist identifies it, measures it on a board, checks its health, tags it, and sends it back. It’s great data, but it only... [Read More]

FishSense-Lite cameras are calibrated and tested in the pool for REEF's SMILE project. © Reef Environmental Education Foundation [Read More]

A diver uses FishSense to measure the length of a Nassau grouper during Grouper Moon, an annual monitoring dive. Photo by Stacey Henderson, courtesy of REEF. [Read More]