as f f s s step,p, the initiate is carrying out a survey of the ununderwater ecosyststem. sysylvannana: we carry out dig activities with h the tent of collllecting data on coralal rs seychelles i is effefective. reportrter: in parartnerip w h the nature conservancy ngo, the seychelles conservation authority is hopinto understand exactly what's happening to the reefs. coral reefs often haverolele regeneratingng in shallow watr becacause the waves and currens are consnstantly moving the skeleletons of the dead coral around, making it hard for new corals to settle. t t t t t t t t t t t t t t t e entire ecosystem. sylvanna: mapping the reef, you can see the changes. where you have this long period of time where ththe tempereratus really high and the corals cannot recover, so this has a huge impact on your marinene resource on coral reefs. we have started a coral reef restoration project lookining t other ways t to try to restore coral reefs ususing the corals that are more resilient and growing these corals and putting them back on the reefs. reporter: together with fisheries