Table 1. Responses at the base of the food web through different stages of adjustment to OAE.

The effect of OAE was tested using linear regressions, which were fitted to the averages of each phase. Equal signs indicate no effect of OAE; arrows indicate the direction of change in those parameters significantly affected by OAE.

Food web implication		Lower trophic level property	OAE effect
			Shorter	Longer
Bottom-up mediation	Quantity	Particulate organic carbon	=	=
		Protozooplankton abundance	=	=
		Primary production	=	=
	Nutritional quality	Fatty acids	=	=
		Particulate organic nitrogen	↓	=
		C:N	↑	↑