Fig. 3 in Diel movement patterns of Pacific sugar limpet, Patelloida saccharina (Gastropoda: Patellogastropoda: Lottiidae) in response to semi-diurnal tides of Samal Island, Philippines

Fig. 3. Movement patterns of Patelloida saccharina limpets in Catagman, Samal Island, during various lunar phases. A, New Moon, 27–28 March 2017; B, First Quarter, 4–5 April 2017; C, Full Moon, 9–10 April 2017; D, Last Quarter, 19–20 April 2017. The left and right y-axes correspond to the percentage of moving limpets and tidal height measurements in metres above chart datum (C.D.), respectively. Grey vertical bars represent the percentage of actively moving limpets during each lunar phase. The bar at the bottom corresponds to the day-night cycle: (from left to right) white = daytime, grey = transitioning to sunset, black = night-time, grey = sunrise. Note that the activity of P. saccharina limpets was observed during dark periods only, from sunset to night-time until before sunrise, as long as they were covered by the tide.