Shaded value = in the CV mean (shade deepens with cover) Grey italic = shown for comparison but left out of the CV mean: the gold standard and manual CoralNet annotations (human reference values, not models), Coralscapes (not trusted), and any value that reuses the reference's own data n = frames behind the value — = not run or not applicable (see each region's notes) Site names and method names link out (new tab)

Coral Cover: Bahrain / Persian Gulf 2023-24

2 sites · 36 photos

No gold standard.

SiteDateCoralSCOPMean ± SD of CVRange
artificial_reef2023-09-2335.7n=2135.735.7–35.7
dilmunia_reef2023-09-2310.6n=1510.610.6–10.6
All sites (unweighted mean)23.123.123.1–23.1
Notes for Bahrain / Persian Gulf 2023-24 (7)
  • [a] No gold standard exists for this region.
  • [b] CoralSCOP = per-frame sum of colony-mask area fractions (zero-filled; overlapping masks double-count), averaged over frames with an ok row. Area index, not a point count: denominator differs from any point-count reference.
  • [c] Bahrain CoralSCOP: maps/bahrain_map_build/coralscop_survey (36 ok frames, 2 folders, both Bahrain 2023 dives; source folders '...-edited'). Bahrain 2024 (2 dives, 151 frames) has no CV output of any kind.
  • [d] THIN SAMPLE (under 30 frames at this site): indicative only.
  • Mean/Range: Mean ± SD and Range are over the CV cells that enter the mean (CoralNet where independent, DINOv3, CoralSCOP unedited/edited, Claude). Gold standard, frames manually annotated in CoralNet, Coralscapes and same-measurement cells are shown but never averaged (*).
  • Methods: Claude (Anthropic); DINOv3 (Meta; paper; used here as the frozen backbone of the in-house classifier); Coralscapes v1 and v2 (EPFL-ECEO; dataset paper, code); CoralSCOP (Zheng et al., CVPR 2024); CoralNet.
  • Sites: names drop the region prefix (hover for the full name) and link to the site's CRD page, or to the regional summary page where the site has none. Date = survey date from the map pins (first–last visit); sites are listed earliest first, undated sites last.

All regions

This trip: what has run, photo basis and photo counts

TripDivesPhotosReference / transectsManual pointsCoralNetClaudeDINOv3Coralscapes v2Coralscapes v1CoralSCOPTable
Bahrain / Persian Gulf 2023-244191———————36 ok EDITED (2023 dives only; 2024 not run)included (Anderson's exception; cover very low)