Nutrients are sampled once per month on the Tiahura radiale since 2008.
Access the data
Sampling
Triplicata sampling of 125ml of water on:
- the outer slope (at -20m)
- the barrier reef (at -0.5m)
- the fringing reef (at (-0.5m)
GPS coordinates
Habitat | Latitude (WGS84) | Longitude (WGS84) | |
Outer slope | 17°28.995'S | 149°54.071'W | conversion DM/DMS |
Barrier reef | 17°29.178'S | 149°54.051'W | conversion DM/DMS |
Fringing reef | 17°29.376'S | 149°54.055'W | conversion DM/DMS |
Analysed nutrients
- Phosphate PO4 (µM)
- Nitrates NO3 (µM)
- Nitrites NO2 (µM)
- Silice Si(OH)4 (µM)
- Ammonium NH4+ (µM)
Note: -99 in stored data means no data and -98 in Ammonium means < 0,05µM
Analysis method
The analysis are realised at CRIOBE using the Autoanalyser AA3 (SEAL Analytical), by methods described by Aminot & Kérouel, 2007. Before 2013, the analysis were done by CAIRAP.
Literature references
Alain Aminot, Roger Kérouel. Dosage automatique des nutriments dans les eaux marines. Edition Quae, 2007
Alain Aminot, Roger Kérouel. Dosage automatique des nutriments dans les eaux marines. Edition Quae, 2007