URG has several members who are certified for Reef Life Surveys. These ore the most challenging, but also the most rewarding surveys that you can do as a citizen scientist. They follow a strict protocol, gathering fish and invertebrate data over a 50 m transect. Divers identify species, abundance and size class for every fish and most invertebrates in the transect. Every time you do a reef life survey you learn new species, behaviours or relationships in the ecosystem. Best of all, the data is gathered in a large global database that is used by scientists to analyse the health of our marine ecosystems and has contributed to several high profile scientific papers.