1. Threats to reef

2. Cyanide Fishing
People thought there were pristine reefs

3. Blast Fishing

4. Reef gleaning
Muro-ami
Overfishing

5. Reef check

6. Overview
Established 1997 as part of the International year of the Reef (IYOR)
Easy methodology ensures quick training with no prior knowledge necessary
Results indicative of health of reef and anthropogenic impacts
Now largest international coral reef monitoring program involving recreational divers and marine scientists
Over 1500 trained volunteer divers surveying over 250 sites
Result compiled by comparing fish and invertebrate species and substrate types which are indicators of the health of the reef

7. Reef check methodology:
Site selection
Site description
Transect laying
Fish survey belt
Invertebrate survey (belt)
Substrate survey (point sampling)

8. One Transect Line for Fish, Invertebrate
and Substrate (100m Long)
1st Transect
(20m)
2nd Transect
(20m)
3rd Transect
(20m)
4th Transect
(20m) 20 25 45 50 70 75 95
100
5m spaces between transects

9. Transect

10. Fish Indicator species

11. Invertebrate indicator species

12. Substrate categories