Table 5.
Environmental variables used and model selection for explaining species similarity
| Main biological groups | Environmental variables | BIOENV variable selection |
|---|---|---|
| Prokaryotes | T, S, O2, Conduct, Fluo, PARi, SPARi, Turb, Beam-att-1m, O2volt, Zmax | O2, Turb, Beam-att-1m, Zmax |
| Microbial eukaryotes ALL | Turb, Zmax, O2 | |
| Coccolithophores 0–160 m | T, S, O2, Chl-a, Conduct, O2volt, Fluo, PARi, SPARi, Turb, Beam-att-1 m | SPARi |
| Dinoflagellates 0–160 m | SPARi | |
| Diatoms 0–160 m | O2volt | |
| Mesozooplankton 0–200 m | Not available | Not available |
| Gelatinous zooplankton | SST (remotely sensed), SST, S, Chl-a,W, Z | S |
| Macrozooplankton | T, S, O2, Chl-a, Conduct, O2volt, Fluo, PARi, SPARi, Turb, Beam-att-1 m | Turb, S |
| Myctophids | T, S, O2, T400, T200, S400, S200, O2min, SFluo, Fluomax | T 400 |
Environmental variables and best BIOENV model selection for each of the different plankton groups.
SST sea surface temperature (°C), S salinity, O2 oxygen (ml/l), O2 volt oxygen (volts), O2min oxygen minimum concentration (ml/l), Conduct conductivity (S/m), Fluo fluorescence (volts), Fluomax maximum fluorescense (volts), SFluo surface fluorescense (volts), Turb turbidity (FTU), PARi photosynthetic active radiation irradiance (µE/(cm2sg)), SPARi surface photosynthetic active radiation irradiance (µE/(cm2sg)), Beam-att-1m beam attenuation coefficient at 1 m depth (m−1), Zmax maximum depth of sampling (m), Chl-a chlorophyll-a (µg/l), W wind (m/s), Z depth of station (m), T400 temperature at 400 m (°C), T200 temperature at 200m (°C), S400 salinity at 400 m, S200 salinity at 200 m