Coral Reef Diagnostics

Maldives - Miyaro Faru

Reef Check Foundation
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05
Photo: Anderson Mayfield/Coral Reef Diagnostics
Country
Survey date(s)
2017-05-16
Coordinates
3.9940, 73.5143
Coral cover
24%
Claude computer vision (20 edited photos) · other methods below · median 17%
Observations
None noted in the photographs reviewed.
Heat stress
Most recent heat load record
26 Oct 2026 · Bleaching Watch
5-year thermal stress load
5-year mean max. degree heating weeks (DHW)
2021–2025
NOAA Coral Reef Watch — Maldives 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 infoMaldives (NOAA CRW virtual station)
Photographs
21
17 shown on this page
Site summary
Read this summary in:

A late-afternoon drift over tiered table-coral terraces in golden light, highlighted by a huge dark moray, compatible with a giant moray, hunting in the open across sand and a huddle of oriental sweetlips packed under one coral table.

Max. depth dived
19.5 m
sample-sheet maximum
Sea surface temp. (satellite)
30.0°C
satellite sea surface temperature (SST) on the survey date (NOAA Coral Reef Watch, Maldives), 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

Three independent survey stations shown with the program’s logo — click one to see how far it is from this site.

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

5 of the 17 photographs on this page are shown beside the text that discusses them under "Site description" below.

3678910111314151617

Photo credit & attribution

Site description

Setting

A late-afternoon drift over pink-crusted pavement and sand channels, ending on terraces of living table corals compatible with Acropora, stacked tier upon tier along the reef edge in the day's last blue light, a wire coral corkscrewing up between them (e.g., Image 1, Image 2, Image 5).

Coral cover

Stressors

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

Fish and other fauna

Mid-dive, the reef produced a genuine event — a huge dark moray, compatible with a giant moray, abandoned its hole entirely and went snaking across the open sand between bommies, hunting in plain view while the camera tracked it frame by frame (e.g., Image 4).

The closer: a conspiratorial huddle of oriental-type sweetlips — pinstriped in blue and black, fins dipped in yellow — packed shoulder-to-shoulder under a table coral like commuters under one umbrella (e.g., Image 12).

Comparisons with other data

Montefalcone et al. (2020) surveyed a nearby station (Fushidiggaru Etheru) in 1999, 0.14 km from the pin. Cover values from that work are not among the survey records shown on this page. Within 5 km, three independent stations recorded station-year means of 19–76% hard coral cover between 2015 and 2025; the nearest of these, Reef Check at Gulhi Island Backreef, 1.35 km away, read 19% in 2022.

CV model comparison

Mean 24%, median 17% across 20 photos.
More infoA few colony-focused photos raise the mean; the median is the typical photo. No computer-vision method yet estimates coral cover accurately on new images, so treat this as indicative rather than a measurement; it is revised as the methods improve.
Headline: Claude computer vision, a blind point count of this site's own photographs.
More infoOther rows are for comparison only and are never averaged. No diver transect exists for these photos, so agreement between rows is not accuracy.
MethodHard coral cover (%)Photos (n) ± SE
In-house DINOv317.0
CoralSCOP edited23.4
Claude (edited photos)23.8n = 20 · SE 5.6

The two computer-vision methods agree within 6.4 pp (17.0–23.4%) and read within 6.8 pp of Claude's blind point count (23.8%).

Independent surveys nearby

Data availability near this site
Agency / programYear(s)Stations / distanceLink
Montefalcone et al. (2020)20151 station, 1.62 kmRecords ↓
Montefalcone et al. 20262024–20251 station, 3.38 kmRecords ↓
Reef Check20221 station, 1.35 kmRecords ↓
Hard coral cover over time — this site and every independent station within 5 km. Programs are shown separately because they use different methods at different stations; the lines are not one comparable series.
0%20%40%60%80%201520202025Montefalcone et al. (2020) 2015: 76%Reef Check 2022: 19%Montefalcone et al. 2026 2024: 43%Montefalcone et al. 2026 2025: 39%Coral Reef Diagnostics 2017: 24%Year-averaged across all programs: illustrative only; the programs differ in stations and method, so no trend is claimed (5 years)
Montefalcone et al. (2020) Reef Check Montefalcone et al. 2026 Coral Reef DiagnosticsYear-average (illustrative only, programs differ)

Within 5 km, 3 independent survey stations recorded hard coral cover in 4 records between 2015 and 2025. The one station surveyed in more than one year declined by 4.0 points between its first and latest surveys. The longest record, Kuda Giri Wreck (Montefalcone et al. 2026, 3.38 km away), went from 43% in 2024 to 39% in 2025. Since 2021, station-year means average 34% (range 19–43%; n = 3 station-years from 3 records). This site's own estimate (24%) sits 5 points above the recent value up to 2 km away (19%), inside the 7-point method-noise floor (inconclusive); the methods differ, so the comparison is context, not a like-for-like test.

Collected by other programs using different methods (Reef Check uses point-intercept transects), so these are context for the figures above, not a like-for-like comparison. Where a station was surveyed more than once, the cell shows either the range of its values or, as a single value, the mean of surveys made in one year. Station names are not dive-site names. Values above 70% are marked “best patch”: surveys often target the densest coral on a reef, so these may overstate the site as a whole.

Independent survey data near this site
AgencySite / locationDateHard coral cover (%)DistanceLink
Montefalcone et al. (2020)Cocoa Corner201576% best patch1.62 kmdoi:10.3389/fmars.2020.00587
Reef CheckGulhi Island Backreef202219%1.35 km—
Montefalcone et al. 2026Kuda Giri Wreck2024–202539–43% (2 surveys)3.38 kmdoi:10.1007/s00338-026-02850-x

Data & links

All images from Coral Reef Diagnostics. Data are from Coral Reef Diagnostics and the organizations named in the data sources above.

© Coral Reef Diagnostics.

References

  1. Montefalcone M, Morri C, Bianchi CN (2020). Influence of Local Pressures on Maldivian Coral Reef Resilience Following Repeated Bleaching Events, and Recovery Perspectives. Frontiers in Marine Science 7:587. PDF
  2. Montefalcone M, Bianchi CN, Morri C, Ahmed H, Pancrazi I (2026). Outcomes of the fourth global coral bleaching (2023–2024) in the Maldives. Coral Reefs. DOI