The transects and the thermometer are at -12 meters depth on the outer slope.
16°44.230'S/151°30.240'W (conversion DM/DMS)

The Polynesia Mana since 1994

Icon Corail 35px The analysis of the coral cover is done using three methods:
Photo-quadrat coral transect
Coral survey by "manta tow"
Underwater seascape photography
You can access to and to the photo quadrats

YearRugosity parallelRugosity perpendicularHeight SD parallelHeight SD perpendicular
20202.0271 (sd 0.2780)1.8458(sd 0.2734)0.30780.2559
20222.1639 (sd 0.2955)1.9701(sd 0.2754)0.31480.2608
20242.0521 (sd 0.1450)1.8573(sd 0.2418)0.30570.2415

Icon Poisson 35px The fish are estimated using ichtyological assessment.
Here are the data
Icon Temp The temperature is recorded using the SBE 56 Thermometer.
Here are the thermometer data

Quadrat n°10 sur la pente externe de Raiatea, en 2016/CRIOBE

3D reconstruction of the site (2020)/CRIOBE

3D reconstruction of the site (2024)/CRIOBE

Click here to access an interactive video to compare 2020, 2022 and 2024 (warning 800MB of video)

Historique Raiatea

Interactive map


1)  2024-04-22 15:26
event without name
2)  2024-06-06 15:21
Moorea Pihaena (E2B)
3)  2024-09-02 15:22
Nuku Hiva
4)  2024-09-04
5)  2024-09-09 15:26
Série Galzin
6)  2024-09-30 15:23