To get an idea of the problem facing observationalists
	Frontal simulation
	embedded ecosystem
	2 phytoplankton
	building on SAS work
	looking down on ocean
	point out front
	eddy
	subducted feature
	biological response to upwelling significantly
	varies over 5days
	Primary production similar structure
	And now bad news…
	UNSURPRISINGLY
	MORE STRUCTURE IN COMMUNITY STRUCTURE
	Should we even be trying to sample this structure?
	Desperate need for modelling and theory to help.