Marine ecosystem interconnectivity game

The COT is a predator that feeds on coral. It also depends on the coral as a shelter. The roles of the students are either COT, food, shelter, space or oxygen. In each round the COTs decides what resource they need. If the COT fails to get his resource, it dies and turns into a resource itself in the next round. Each round the number of COT's are counted and noted. The results are discussed afterwards. You can use a PowerPoint presentation for the introduction.