Table 1. Estimated consumption of Antarctic krill by the 306 humpback whales we counted in Wilhelmina Bay, WAP during the 54-day change in the timing of sea ice advance described by Stammerjohn et al. [15] and using the daily consumption rate estimates from Reilly et al. [27].

daily consumption (kg)	total krill (kg)	tons consumed	model	Krill Abundance (tons)	% of total consumed by whales
390.34	6.45E+06	3225	Innes et al.	2.0E+06	0.161
497.23	8.22E+06	4108	Innes et al. revised	2.0E+06	0.205
694.38	1.15E+07	5737	2% max	2.0E+06	0.287
785.95	1.30E+07	6494	2.5% max	2.0E+06	0.325
874.33	1.44E+07	7224	3% max	2.0E+06	0.361

We used humpback whale abundance estimates from line transect surveys described in our results.