Coral Reef Diagnostics

Raja Ampat - Pulau Misool night dive

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05
Photo: Anderson Mayfield/Coral Reef Diagnostics
Country
Survey date(s)
2018-10-18
Coordinates
-2.0550, 130.5450
Coral cover
not reported
No coral cover estimate: night dive.
Observations
not yet tagged for this site
Heat stress
Today’s heat load
16 Sep 2026 · Bleaching Watch
5-year thermal stress load
5-year mean max. degree heating weeks (DHW)
2021–2025
NOAA Coral Reef Watch — West Papua virtual station
i 5-year mean max. DHW is the mean of the annual maximum DHWs over the five complete years named above, not conditions today.
More infoWest Papua (NOAA CRW virtual station)
Photographs
25
Site summary
Read this summary in:

A night dive on Misool's house reef, known for mandarinfish courtship and the walking epaulette shark, inside the heavily protected Misool Marine Reserve, which has seen fish biomass rise 250-600% and shark numbers rise 25-fold since patrolling began. No coral-cover figure is published for this site.

Max. depth dived
17.7 m
Water temp. during survey
27.5°C
-1.4°C vs the 2018 mean sea temperature (28.9°C)
Bottom time
65 min
in at 18:40

Eight other CRD dive sites within 5 km shown in orange — click a marker to open its page.

1 of these 25 photographs is shown beside the text that discusses them under "Site description" below.

12346Photo: Pierre7Photo: Pierre8Photo: Pierre9Photo: Pierre10Photo: Pierre11Photo: Pierre12Photo: Pierre13Photo: Pierre14Photo: Pierre15Photo: Pierre16Photo: Pierre17Photo: Pierre18Photo: Pierre19Photo: Pierre20Photo: Pierre21Photo: Pierre22Photo: Pierre23Photo: Pierre24Photo: Pierre25Photo: Pierre

Photo credit & attribution

Site description

Setting

Misool sits inside one of the richest reef systems on Earth -- Raja Ampat holds around 70% of the world's known coral species and over 1,400 fish species, with a single patch here the size of two football fields once found to hold six times the coral diversity of the entire Caribbean. The 300,000-acre patrolled Misool Marine Reserve has driven a 250-600% rise in fish biomass and 25x more sharks than outside its boundary, making it one of the few reef systems still gaining ground.

Coral cover

Coral cover: no figure is published for this site. Nothing on the map attaches a coral-cover measurement to this site — the account above is descriptive background, not a survey result. A value will be added if transect data, an independent survey nearby, or a computer vision pass on Anderson's own photographs becomes available.

Fish and other fauna

Night dives on Misool's house reef are known for mandarinfish courtship at dusk and the endemic "walking" epaulette shark, which uses its fins to clamber over the shallow reef (e.g., Image 5).

Comparisons with other data

No prior survey data from this site. If you would like to share yours, please email us.

Data & links

Images 6–25: Pierre; all other images from Coral Reef Diagnostics.

© Coral Reef Diagnostics.