ABSTRACT
First,studyingaquaticecosystems,andlakesinparticular, callsforinterdisciplinaryapproaches.EvenveryspeciŸcnaturalinsituprocessescanhardlyeverbeviewedindependentof thehostingenvironment.Asapracticalexample,thedynamics ofanalgaespeciescannotbeunderstoodwithoutconsidering thedistributionofnutrients(andotherbiogeochemicalconstituents),thestratiŸcationandmixingofthewatercolumn,as wellasbaroclinicmotionsandsubsequentmodulationsofthe lightregime.Inthissense,physicallimnologyisacrucialdisciplineforsupportingtheinterpretationofinsituobservationsof anyproperty,whichisalwaysevolvingalongthefundamental balance
∂ ∂ = −t ( ) ( )property Ratesof transformations div property fluxes
(13.1)
Inshort,spatialandtemporalchangesofapropertywithinthe water column have always a transport component.
