University of North Carolina Wilmington 1 article published in JoVE Environment A Fish-feeding Laboratory Bioassay to Assess the Antipredatory Activity of Secondary Metabolites from the Tissues of Marine Organisms Micah J. Marty1, Joseph R. Pawlik1 1Department of Biology and Marine Biology and Center for Marine Science, University of North Carolina Wilmington This bioassay employs a model predatory fish to assess the presence of feeding-deterrent metabolites from organic extracts of the tissues of marine organisms at natural concentrations using a nutritionally comparable food matrix.