Amatzia Genin, The Hebrew University of Jerusalem, The Inter-university Institute for Marine Sciences, Eilat, Israel, Anael Engel, The Hebrew University of Jerusalem, The InterUniversity Institute for Marine Sciences, Eilat, Israel, Matthew Reidenbach, University of Virginia, Department of Environmental Sciences, Charlottesville, VA, United States and Ran Nathan, The Hebrew University of Jerusalem, Ecology, Evolution and Behavior, Jerusalem, Israel