Table 2. Variables used to generate models and respective auto-correlations.

Variables	Correlations
Chlorophyll.max	Primary productivity.max
Dissolved oxygen.min	No correlations
Nitrate.range	Sillicate.range
Primary productivity.max	Chlorophyll.max
Salinity.max	Temperature.max, Temperature.range
Sillicate.range	Nitrate.range
Temperature.max	Salinity.max, Temperature.range
Temperature.range	Sillicate.range, Temperature.max