Figure 1.
The biomass density time series for large rorquals (dotted) and small rorquals (dashed), reconstructed from IWC catch data tabulated by Leaper et al.
Figure 2.
The time series for primary production in the Southern Ocean used in the three Ecosim scenarios that incorporated bottom-up forcing.
Figure 3.
The biomass density changes (%) observed for all modelled functional groups in response to the simulated depletion of both large and small rorquals.
Figure 4.
The biomass density changes (%) observed for all modelled functional groups at the peak of the simulated “krill surplus” (1976) in the first bottom-up forcing scenario.
Figure 5.
The biomass density changes (%) observed for all modelled functional groups at the end of the first bottom-up forcing scenario.
Figure 6.
The biomass density changes (%) observed for all modelled functional groups at the peak of the simulated “krill surplus” (1954) in the second bottom-up forcing scenario.
Figure 7.
The biomass density changes (%) observed for all modeled functional groups at the end of the second bottom-up forcing scenario.
Figure 8.
The changes in krill biomass density seen in all four Ecosim scenarios.
Figure 9.
The changes in predator biomass densities coincident with the peak “krill surplus” in the first three Ecosim scenarios.