Tropical marine life organisms

The field of interest of the French Polynesian Coral Reef Observation Service - SO CORAIL - is oriented towards coral ecosystems to detect, monitor, analyse and model their evolution in relation to environmental changes induced by human activities and climate change.

The variables measured are: 

  • Polynesia Mana: fish (species, size, number); substrate (genus, proportion); image (20 m2, 1 panorama); temperature; swell; pH; oxygen; turbidity; fluorimetry; salinity
  • ATPP: fish (species, size, number); substrate (genus, proportion); mobile benthic invertebrates (species, number)
  • MPA: fish (species, size, number); substrate (genus, proportion); mobile benthic invertebrates (species, number)
  • Coral recruitment (number of larvae per family)
  • Nutritive salts (Nitrates, nitrites, phosphates, silicates, ammonium)
  • Galzin series: fish (species, size, number); substrate (genus, proportion)

Description

SO CORAIL acquires physico-chemical and biological data through the application of 11 methods:

  • "Manta tow" coral surveys
  • Ichthyological surveys
  • Landscape Photographic Surveys
  • Monitoring of substrate coverage and temporal distribution of barrier reef populations and stands
  • Monitoring of benthic invertebrates and fish
  • Coral recruitment monitoring
  • Nutrient salt monitoring
  • Sampling techniques
  • Coral sampling techniques
  • Fish and benthic sampling techniques
  • Photo-quadrat coral transects