Coral Reef Diagnostics

N. GBR - Pink (AUPS67)

Khaled bin Sultan Living Oceans Foundation — Global Reef Expedition
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05
Photo: Anderson Mayfield/Coral Reef Diagnostics
Country
Survey date(s)
2014-09-14
Coordinates
-11.4604, 143.1227
Coral cover
19%
Benthic transects+photo-quadrats
Observations
Heat stress
Today’s heat load
3 Oct 2026 · No heat stress
5-year thermal stress load
5-year mean max. degree heating weeks (DHW)
2021–2025
NOAA Coral Reef Watch — Far Northern GBR 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 infoFar Northern GBR (NOAA CRW virtual station)
Photographs
54
30 shown on this page
Site summary

A silty inshore flank of Parkinson Reef whose coral is concentrated in the 4-7 m band, over 50% live cover of Isopora, Diploastrea, and Pocillopora, above deeper Pachyseris plates and sand. The headline was a giant clam some 1.5 m across, while two photographs show white coral (bleached or freshly dead) that his notes do not mention. Surveyed on the Living Oceans Foundation's Global Reef Expedition.

Max. depth dived
23.5 m
dive-log maximum
Sea surface temp. (satellite)
24.9°C
satellite sea surface temperature (SST) on the survey date (NOAA Coral Reef Watch, Far Northern GBR), not an in-water reading; it is the warmest-pixel (90th percentile) reading in the station area and can run 1–1.5°C above the reef
Bottom time
65 min
in at 08:48

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

11 of the 30 photographs on this page are shown beside the text that discusses them under "Site description" below.

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Photo credit & attribution

Site description

Setting

On this inshore, midshelf flank of Parkinson Reef, visibility was poor at 2-4 m and everything wore a fine coat of silt, yet the reef held real surprises. This is a Preservation Zone.

General benthic features

The photographs come from that shallow band: a murky panorama of mustard brain corals, mounding Porites, yellow branching fire coral, and honeycombed massive colonies crowded together, and close frames of a healthy white-tipped Acropora and a colony of separate cupped corallites with emerald centers, a mushroom coral beside it (e.g., Image 1, Image 2, Image 4).

The dive's headline is here too: a giant clam some 1.5 m across, its mantle black and flecked with iridescent green and orange (e.g., Image 3).

Coral cover

Stressors

One frame shows a bone-white fine-branched colony perched among healthy gray Isopora branches, a bleached or freshly dead colony that Anderson's notes for this stop do not mention (e.g., Image 5).

A second frame shows a tan branching colony whose lower band of branches is stark white, with crisp tips and no algae: partial bleaching or very recent tissue loss of one colony (e.g., Image 10).

No crown-of-thorns starfish (COTS) or other corallivores evident.

Fish and other fauna

A gray reef shark and several small nudibranchs (his notes) rounded out the dive; the photographs show nudibranchs with feathery gill plumes (e.g., Image 11, Image 15) and gray, black-striped, orange-rimmed polyclad flatworms (e.g., Image 9, Image 25, Image 27).

Comparisons with other data

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

Data & links

All images from Coral Reef Diagnostics. Data are from the Khaled bin Sultan Living Oceans Foundation Global Reef Expedition and Coral Reef Diagnostics.

© Coral Reef Diagnostics.