Coral Reef Diagnostics

Fiji - Fulaga (FJFU29)

Khaled bin Sultan Living Oceans Foundation — Global Reef Expedition
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05
Outlier score: 4.17/5 (Fulaga, n = 6 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.
Country
Survey date(s)
2013-06-12
Coordinates
-19.1184, -178.5918
Coral cover
50%
Benthic transects+photo-quadrats
Observations
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
8
Site summary
Read this summary in:

A Fulaga station in Fiji's remote southern Lau group (dived to 4 m), where the transects recorded 50% live coral. Anderson was busy sampling three Pocillopora acuta colonies here, so the account rests on the survey data. Surveyed on the Living Oceans Foundation's Global Reef Expedition.

Max. depth dived
4 m
dive-log maximum
Water temp. during survey
26.0°Cii
CTD-cast midpoint; the cast read 26.0°C throughout
-1.1°C vs the 2013 mean sea temperature (27.1°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); range 25.98–26.01°C.
Bottom time
29 min
in at 15:44

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

Site description

Setting

FJFU29 is a Fulaga station, surveyed on 12 June 2013 during the Khaled bin Sultan Living Oceans Foundation's Global Reef Expedition. Fulaga is a raised limestone island with an enclosed lagoon in southern Lau, Fiji's remote and sparsely populated eastern archipelago.

General benthic features

Anderson's own photographs at this station are colony-level sampling shots, not habitat photography: three tagged Pocillopora acuta colonies were photographed at close range with surgical scissors beside them, consistent with a tissue-biopsy sampling dive rather than a reef survey. Three further topside frames show Fulaga's raised limestone islets, palm-topped and undercut at the waterline (e.g., Image 6, Image 7, Image 8), enclosing the lagoon the site sits in; the underwater frames are close-up sampling shots, cutters, and numbered tags on branching colonies, rather than habitat views (e.g., Image 1, Image 2, Image 3, Image 4, Image 5).

Coral cover

Stressors

Recent thermal exposure at the Fiji virtual station has averaged an annual maximum of 8.9 degree-heating-weeks over 2021-2025 (NOAA Coral Reef Watch), above the 8 DHW level at which severe bleaching and mortality are expected — a figure from a decade after this survey. Anderson's sampling sheet records one of the three colonies sampled here (F55) as partially bleached (20%), and the frames of it show cream-white branches among pigmented ones (e.g., Image 2, Image 3); the other two were recorded as less than 10% and 10-15% pale.

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.

Dive record

Bottom time was 29 minutes on Anderson's own dive, during which the three colonies were sampled; the expedition team's log records the team's separate visit to this station that afternoon.

Other notes

Anderson was busy sampling corals at this site, so the site description is derived from the Living Oceans Foundation's benthic transect data. Three Pocillopora colonies were sampled here (colonies 54, 55, and 56), all three labeled P. acuta in Anderson's own field records, where this station's sample code is FJFL29. Fulaga's reef zones in general (not this station specifically): spur and groove assemblages at fore reef sites; large monospecific stands of foliaceous and plating Pachyseris, Leptoseris, Montipora, and Merulina on more gradual slopes, with encrusting and laminar morphologies more common where the slope becomes close to vertical; gently sloping areas with scattered mounds and spurs of coral framework running perpendicular to the reef crest; and ridges or mounds of coral, perforated by shore-perpendicular channels, running parallel to the reef crest.

Data & links

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

© Coral Reef Diagnostics.