Acoustic backscatter and mesopelagic fish abundance, biomass and swimbladder morphology supplement from Swimbladder morphology masks Southern Ocean mesopelagic fish biomass

Supplemental material contains figures and tables of linear regression results for day and night acoustic backscatter change with latitude; swimbladder condition of key Scotia Sea mesopelagic fish species; biomass of RMT25 net samples for 1) all fauna and 2) fish; and logistic regression model of Electrona antarctica swimbladder condition.