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Threats to reef

Threats to reef. Cyanide Fishing. Blast Fishing. Reef gleaning. Muro-ami. Overfishing. Reef check. Overview. Established 1997 as part of the International year of the Reef (IYOR) Easy methodology ensures quick training with no prior knowledge necessary

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Threats to reef

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  1. Threats to reef

  2. Cyanide Fishing

  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) 0 20 45 25 50 70 75 95 100 5m spaces between transects

  9. Transect

  10. Fish Indicator species

  11. Invertebrate indicator species

  12. Substrate categories

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