Over the last few years, the demand for sea cucumbers from Asian countries has literally exploded, obliging the manufacturers to produce more and more. In many producing countries, the number of sea cucumbers has diminished noticeably. Madagascar is not an exception to that rule. Helped by International organisms, the IHSM researchers have found a way of reproducing the animals all year round, bringing big hopes to the aquaculture of sea cucumbers. Will the implantation of sea ranches in the coastal villages diminish the number of fishermen, thus saving the Holothuriculture ? That is what is at stake in this challenge.