Memorandum of Understanding available here : MOU_Samoa.pdf
Localisation
The transects and the thermometer are at -10 meters depth on the outer slope.
13°48.354'S/172°01.915'W (conversion DM/DMS)
The wave probe is at -26m.
To be added soon
Program
The Polynesia Mana since 2013
| The analysis of the coral cover is done using four methods: Photo-quadrat coral transect Coral survey by "manta tow" Underwater seascape photography Photogrammetry You can access to and to the photo quadrats | ||
| Year | Rugosity parallel | Rugosity perpendicular | Height SD parallel | Height SD perpendicular |
|---|---|---|---|---|
| 2019 | 1.5543 (sd 0.2044) | 1.7078(sd 0.2046) | 0.2579 | 0.2672 |
| 2022 | 1.5907 (sd 0.1427) | 1.6572(sd 0.1441) | 0.2669 | 0.2667 |
| 2024 | 1.5658 (sd 0.1627) | 1.6702(sd 0.1384) | 0.2772 | 0.2763 |
| The fish are estimated using ichtyological assessment. Here are the data | ||
| The measures of the waves are done using the the SBE 26 Seagauge wave and tide recorder. Here are the data | ||
| Starting 2020, the measures of the waves are done using OSSI-010-022 Wave Gauge Blue. | ||
| Here are the data | ||
| The temperature is recorded using the SBE 26 Seagauge wave and tide recorder (see the previous link to access the data) and also using the SBE 56 Thermometer. Here are the thermometer data | ||
Click here to access an interactive video to compare 2019 and 2022 (warning 400MB of video)
Historique Samoa
Données brutes de suivi des équipements. Les dates affichées correspondent à la date de modification du fichier informatique en laboratoire.
| Date | Departure | Arrival | Instrument |
|---|---|---|---|
| 2015-05-01 02:09:54 | CRIOBE > Tubuai | CRIOBE > Samoa | SBE26 houlographe 1185 |
| 2015-08-07 20:09:53 | CRIOBE > Samoa | CRIOBE > Cook | SBE26 houlographe 1218 |
| 2018-02-02 02:15:09 | CRIOBE > Samoa (16) | CRIOBE > Moorea > CRIOBE (33) | SBE26 houlographe 1185 |
| 2018-02-02 02:15:22 | CRIOBE > Moorea > CRIOBE (33) | CRIOBE > Samoa (16) | SBE26 houlographe 1185 |
| 2019-10-15 02:51:22 | CRIOBE > Moorea > CRIOBE (33) | CRIOBE > Samoa (16) | SBE56Temp 1632 |
| 2019-10-22 07:24:46 | CRIOBE > Samoa (16) | CRIOBE > Moorea > CRIOBE (33) | SBE26 houlographe 1185 |
| 2022-07-25 23:20:48 | CRIOBE > Moorea > CRIOBE (33) | CRIOBE > Samoa (16) | SBE56Temp 1630 |
| 2022-08-19 08:55:42 | CRIOBE > Moorea > CRIOBE (33) | CRIOBE > Samoa (16) | wave Gauge Blue 10-22-01 161056 19-03-14 #001 |
| 2022-09-26 20:10:46 | CRIOBE > Samoa (16) | CRIOBE > Moorea > CRIOBE (33) | SBE56Temp 1632 |
| 2022-09-26 20:10:58 | CRIOBE > Samoa (16) | CRIOBE > Moorea > CRIOBE (33) | wave Gauge Blue 19-10-23-003 |
| 2024-04-06 12:31:11 | CRIOBE > Moorea > CRIOBE (33) | CRIOBE > Samoa (16) | wave Gauge Blue 1108452 - 20-11-22-001 |
| 2024-04-11 19:24:11 | CRIOBE > Samoa (16) | CRIOBE > Moorea > CRIOBE (33) | SBE56Temp 1630 |
Changement de thermographe SBE56
Changement de houlographe SBE26 n° de série 1185
Commentaires: perte totale du recouvrement corallien sur la zone d'étude. Acanthaster + hausse de la température de l'eau
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Mai 2013 : Installation du houlographe SBE26 n°1218 à -26 mètres.
Commentaire : Mise en place du suivi quadrat, des photos paysages et des transects couloirs
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