We need help in identifying new barrens to monitor. Barrens are areas where the bare rock is completely clean of all erect algal cover and is typically covered over with encrusting algae. How big these bare areas are, depends on the pressure the ecosystem receives but it normally ranges in sizes from several square meters to large expansions of hundreds of square meters. If you spot a barren, you can make a valuable contribution to this study, and to the conservation of macroalgal forests. All we need is information on the position of the barren (its GPS coordinates), the depth at which you saw it, and a photograph. If you see sea urchins or fish around the barren, please note them down, because it is very relevant information.