Review Key Features and Context-Dependence of Fishery-Induced Trophic Cascades ANNE K. SALOMON,∗† SARAH K. GAICHAS,‡ NICK T. SHEARS,∗ JENNIFER E. SMITH,§ ELIZABETH M. P. MADIN,∗†† AND STEVEN D. GAINES∗†† ∗Marine Science Institute, University of California Santa Barbara, Santa Barbara, CA 93106-6150, U.S.A. †School of Resource and Environmental Management, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada, email
[email protected] ‡National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Alaska Fisheries Science Center, 7600 Sand Point Way NE, Seattle, WA 98115, U.S.A. §Scripps Institution of Oceanography, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, U.S.A. ††Department of Ecology Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106-9610, U.S.A. Abstract: Trophic cascades triggered by fishing have profound implications for marine ecosystems and the socioeconomic systems that depend on them. With the number of reported cases quickly growing, key features and commonalities have emerged. Fishery-induced trophic cascades often display differential response times and nonlinear trajectories among trophic levels and can be accompanied by shifts in alternative states. Furthermore, their magnitude appears to be context dependent, varying as a function of species diversity, regional oceanography, local physical disturbance, habitat complexity, and the nature of the fishery itself. To conserve and manage exploited marine ecosystems,