Coral Reef Diagnostics

Fiji - Totoya (FJTO04)

Khaled bin Sultan Living Oceans Foundation — Global Reef Expedition
⬇ Download this page as a report card
05
Outlier score: 3.89/5 (Totoya, n = 9 corals with an outlier score). The share of those corals whose molecular stress profile was an outlier, rescaled to 0-5 (5 = no outliers); an island-level measure (Mayfield et al. 2017), not a Coral Health Index.
Photo: Anderson Mayfield/Coral Reef Diagnostics
Country
Survey date(s)
2013-06-04
Coordinates
-18.8886, -179.8677
Coral cover
25%
± 3.3% SE, n = 5 transects · Benthic transects+photo-quadrats
Observations
possible bleachingcyanobacteria
Heat stress
Most recent heat load record
26 Oct 2026 · No heat stress
5-year thermal stress load
5-year mean max. degree heating weeks (DHW)
2021–2025
NOAA Coral Reef Watch — Fiji 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 infoFiji (NOAA CRW virtual station)
Photographs
26
24 shown on this page
Site summary
Read this summary in:

A Totoya station whose photos mostly document the physiology sampling work, with tagged colonies (Anderson's sampling sheet records one sampled colony here) and divers at work. The reef itself ranges from a densely occupied coral wall of small colonies over pink coralline framework to a flatter, rubbly reef top with scattered corals, at 25% cover. Surveyed on the Living Oceans Foundation's Global Reef Expedition.

Max. depth dived
23.8 m
dive-log maximum
Water temp. during survey
27.0°Cii
CTD-cast midpoint; the cast read 27.0°C throughout
-0.3°C vs the 2013 mean sea temperature (27.3°C)
ii Station CTD-cast midpoint (LOF station records), not a dive reading: midpoint of the station's maximum and minimum CTD water temperature (Living Oceans Foundation Fiji station records); the cast read 27.04°C throughout.
Bottom time
58 min
in at 08:01

Two other CRD dive sites with their own pages within 5 km shown in orange — click a marker to open its page.

22 of the 24 photographs on this page are shown beside the text that discusses them under "Site description" below.

126

Photo credit & attribution

Site description

Setting

Image 23 is a genuine sea cave, a diver silhouetted in the entrance against bright surface light with orange encrusting growth on the walls, so there is real cavernous relief on this reef.

General benthic features

The reef-scale frames are the minority but they are consistent. Image 22 is the fullest: a densely occupied slope of small and medium colonies packed over pink and magenta coralline-crusted framework, with one broad rose-pink encrusting sheet in the foreground and dark blue water beyond. Image 25, from the safety stop, looks down over a much flatter reef top — broad pavement and rubble, coralline-pink and gray, with colonies scattered rather than joined. Image 24 shows the same shallow character near the surface: crusted pavement carrying small tan digitate and branching colonies with wide gaps of bare rock between them. Image 19 and Image 21 are hazy and color-shifted wide shots (the latter with a strong red cast) of mixed low-relief reef with small fish and are of limited use for anything but general structure.

The colony close-ups give the assemblage more texture than the published subset could. Recurring through the set are pale pink and salmon knobby, lobed, and columnar colonies (e.g., Image 5, Image 7, Image 8, Image 9, Image 16) — a Porites-like growth form dominating the macro frames; a cream-tan colony with coarse, widely spaced corallites on crusted rock (e.g., Image 2); a thick-lobed tan colony (e.g., Image 3); a yellow-green massive with deep cerioid honeycomb corallites (e.g., Image 10); and two green colonies, one a smooth plate with pale polyp dots (e.g., Image 11) and one a lumpy surface studded with bright yellow-green polyps (e.g., Image 12).

Several of these cannot be separated to genus from a photograph and none is asserted. Image 20, which Anderson left unidentified, shows a pale green-yellow colony of thick blunt columns.

A giant clam sits embedded in the framework with its mantle open in Image 17.

Coral cover

Stressors

One small colony at the edge of one frame shows possible bleaching (one frame, Image 11); no disease lesions or crown-of-thorns feeding scars are visible in any frame, though the green and magenta color casts on several wide shots limit how firmly that can be stated for those. Anderson's sampling sheet records the one colony sampled here as fairly pale but healthy. The Living Oceans Foundation transects here recorded 7.2% cyanobacteria and no recently dead coral.

Fish and other fauna

A whitetip reef shark appears in Image 18 and Image 13.

Comparisons with other data

Apart from the Living Oceans Foundation survey shown here, we found no other surveys at this site as of 2026. If you would like to share yours, please email us.

Other notes

The station's photo set holds 26 frames, and roughly half of them are not survey photography at all but the physiological sampling workflow. Four frames show that work directly: a gloved hand reaching in with tagging pliers, dive computer on the wrist (e.g., Image 4); and three colonies each carrying a plastic tag on a colored tie fixed to the substrate beside them — a salmon-pink knobby colony (e.g., Image 7), a pale pink lobed colony photographed close (e.g., Image 8), and a pale colony with its polyps fully extended (e.g., Image 14).

These are tagged colonies, not cover frames; the tags identify nothing, and Anderson's sampling sheet records one colony sampled here (P. damicornis).

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.