CARCACE aims to study the community response to intense pulses of organic falls and their importance as sulphide-rich habitat islands in the Atlantic Ocean deep-sea floor. CARCACE brings together a team of Portuguese scientists with expertise in several aspects of chemosynthetic environments biology: from taxonomy and anatomy of invertebrates, to trophic and reproductive ecology and biogeography. During CARCACE mammal carcasses, deployed in the Setúbal canyon (west Portuguese margin) and the Condor Seamount (Azores) at approximately 1000m depth will be visited and sampled regularly.