Humphead wrasse populations in E. Malaysia 2005
Humphead wrasse distribution in Sabah 2005
Look at the huge differences in the numbers of fish per kilometre in fished and lightly fished areas. The fact that no Humphead wrasse were seen in Sarawak possibly indicates that the cyanide fishers were active in the area before the survey was done. See ‘Humphead wrasse biology & populations on protected reefs’.
The population at Sipadan (lower right star) is probably 75 fish and at Pulau Layang Layang (top star) is approximately 350 fish.
Coral reef survey to 2005 menu
Survey sites – Ecotourism - Fisheries issues – Fisheries issues E Malaysia – Pelagic fisheries – Non reef fisheries
- Blast fishing – Frequency – Regulations – Economics – Effects of bombs on diversity – effects of bombs on reef structure
Cyanide fishing – Cyanide fishing Map -Regional threats – Market forces - Social impacts of cyanide – Environmental costs of Cyanide -
Reef fish population decline – Coral trout & Leopard Groupers – Large grouper size change with fishing - Sweetlips – Snappers – small groupers – Sex change & threatened species -
Humphead wrasse & Live fish trade -location map– Regionally extinct – HHW populations – Spawning & Feeding – ID of individuals