Threats to reef. Cyanide Fishing Blast Fishing Reef gleaning Overfishing Muro-ami.
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21-Dec-2015 -
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Transcript of Threats to reef. Cyanide Fishing Blast Fishing Reef gleaning Overfishing Muro-ami.
Threats to reef
Cyanide Fishing
Blast Fishing
Reef gleaning
Overfishing
Muro-ami
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
• 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
Reef check methodology:
• Site selection
• Site description
• Transect laying
• Fish survey belt
• Invertebrate survey (belt)
• Substrate survey (point sampling)
One Transect Line for Fish, Invertebrateand Substrate (100m Long)
1st Transect(20m)
2nd Transect(20m)
3rd Transect(20m)
4th Transect(20m)
5m spaces between transects
0 20 25 45 50 70 75 95 100
Transect
Fish Indicator species
Invertebrate indicator species
Substrate categories