Carapics: A Web-based Platform for Semi-quantitative Analysis of Structural Change in Biological Samples

Environmental stress can alter and damage biological structures with functional consequences. Inspired by observations of Tanner crabs after 2-year exposure to ocean acidification, we observed that crabs held at low pH appeared to have damaged claws. Patterns, however, were complex and three-dimensional, making quantification difficult. We developed a survey-based approach where evaluators could score the extent of damage in images of claws. We present a software tool for the creation of image surveys. The software allows users to quickly upload batches of images, parse file names, and generate surveys. Collected data is returned to the user, associated with treatment conditions.