Most of the Denga Denga or Zanga species in Madagascar live on sand beds at depths of 20 centimeters to deeper than 25 meters, filtering sediment for food and playing a critical ecological role in keeping the ocean water clean. The ease of spotting and usually retrieving these defenseless creatures makes them a relatively easy catch whereas the luring price that is offered for each kilogram ensures constant competition amongst exploiters. Depending on the species and the quality of the final product – which is salted and dried (called trepang) – the price varies from 20,000Ar to 350,000Ar (5 to 100 euros). Trepang is exclusively exported to asian markets.
Nosy Berafia, Andreva, Andavadoaka, Tulear, Madagascar 2016 ©