Intercompartmental trophic exchanges from an inverse plankton foodweb model for the north and south penguin foraging regions in the Palmer LTER study area, 1995 - 2006.

Plankton foodwebs can be represented by systems of biotic living and nonliving compartments linked by networks of intercompartmental trophic exchanges (“flows”). These include grazing, respiration, excretion, nutrient uptake and other physiological processes. Not all flows can be readily measured. The inverse model technique is used to provide objective estimates of unmeasured flows. This dataset includes complete model flows for representative plankton foodwebs in the north and south LTER study area and their associated uncertainties.