Estimating population abundance of marine turtles on their feeding grounds is needed to
implement effective conservation strategies, but is logistically challenging. In-water
monitoring surveys on feeding grounds are costly, time-consuming, stressful to the animals
(when capture is required), and typically requires complex analytical skills. Here, we
compare two sampling methods to estimate abundance of green turtles on one of their major
feeding grounds in the Egyptian Red Sea: a) snorkelling strip transect counts, a rarely used …