Coral Reef Diagnostics

Maldives - Lux Beyru

Reef Check Foundation
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05
Photo: Anderson Mayfield/Coral Reef Diagnostics
Country
Survey date(s)
2017-05-24
Coordinates
3.4931, 72.8972
Coral cover
21%
Claude computer vision (26 edited photos) · details below · median 19%
Observations
None tagged; see Stressors below
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
26
Site summary
Read this summary in:

A dive at the southern tip of Ari Atoll on 24 May 2017 to 30.8 m, where Anderson's field sheet records a whale shark, seen first while snorkeling and then at 30 m for 30-60 seconds.

Max. depth dived
30.8 m
sample-sheet maximum
Sea surface temp. (satellite)
29.6°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

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

One other CRD dive site with its own page within 5 km shown in orange — click a marker to open its page.

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Photo credit & attribution

Site description

Coral cover

Stressors

Anderson's Maldives sample sheet for this dive (24 May 2017) records no crown-of-thorns starfish collected and notes no bleaching or disease; its only note is a whale shark.

Fish and other fauna

Anderson's field sheet records a whale shark on this dive, seen first while snorkeling and then at 30 m for 30-60 seconds. Anderson's Maldives sample sheet for this dive (24 May 2017) records no crown-of-thorns starfish collected and notes no bleaching or disease; its only note is a whale shark.

Comparisons with other data

We found no other surveys at this site as of 2026. Within 5 km, two Reef Check stations recorded station-year means of 19–63% hard coral cover between 2016 and 2023; the nearest, Reef Check at Dhigurah Wall, 3.14 km away, read 22–39% between 2016 and 2023.

CV model comparison

Mean 21%, median 19% across 26 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
Claude (edited photos)21.3n = 26 · SE 2.8

Independent surveys nearby

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%17%34%51%68%201620192023Reef Check 2016: 39%Reef Check 2016: 63%Reef Check 2018: 22%Reef Check 2022: 19%Reef Check 2023: 27%Coral Reef Diagnostics 2017: 21%Year-averaged across all programs: illustrative only; the programs differ in stations and method, so no trend is claimed (5 years)
Reef Check Coral Reef DiagnosticsYear-average (illustrative only, programs differ)

Within 5 km, 2 independent survey stations recorded hard coral cover in 8 surveys between 2016 and 2023. Of the 2 stations surveyed in more than one year, 2 declined (by 12–44 points) between their first and latest surveys. The longest record, Dhigurah Wall (Reef Check, 3.14 km away), went from 39% in 2016 to 27% in 2023 (mean of 2 surveys). Since 2021, station-year means average 23% (range 19–27%; n = 2 station-years from 4 surveys). This site's own estimate (21%) is not compared with these surveys: none lies within 2 km.

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.

Independent survey data near this site
AgencySite / locationDateHard coral cover (%)Distance
Reef CheckDhigurah Wall2016–202322–39% (range of yearly means; 5 surveys)3.14 km
Reef CheckCoral Garden2016–202219–63% (range of yearly means; 3 surveys)3.24 km

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.