1. A reference to the metabolic cost in Patagonia sea lions is missing in the first paragraph of the discussion. The following sentence should be corrected: The estimated resting metabolic rates were similar to those measured in Steller sea lions and California sea lions in water (Hurley and Costa, 2001; Fahlman et al., 2008, 2013) and Steller sea lions in air (Rosen and Trites, 2000).
The correct sentence should be: The estimated resting metabolic rates were similar to those measured in Patagonia sea lions, Steller sea lions, and California sea lions in water (Hurley and Costa, 2001; Fahlman et al., 2008, 2013; Dassis et al., 2012) and Patagonia and Steller sea lions in air (Rosen and Trites, 2000; Dassis et al., 2012).
2. The following sentence in the discussion should include the previous study on Patagonia sea lions: In addition, the estimated mass-specific resting metabolic rates (sRMR: 4.1–10.5 mL O2 min−1 kg−1) were similar to those measured in Steller sea lions and California sea lions in water (Steller sea lions: 7.4–9.2 mL O2 min−1 kg−1; California sea lions: 5.7–10.4 mL O2 min−1 kg−1, Hurley and Costa, 2001; Fahlman et al., 2008, 2013) and Steller sea lions in air (3.0–9.5 mL O2 min−1 kg−1, Rosen and Trites, 2000).
The sentence including previous study should be:
In addition, the estimated mass-specific resting metabolic rates (sRMR: 4.1–10.5 mL O2 min−1 kg−1) were similar to those measured in Patagonia sea lions, Steller sea lions and California sea lions in water (Patagonia sea lions: 9.0 mL O2 min−1 kg−1; Steller sea lions: 7.4–9.2 mL O2 min−1 kg−1; California sea lions: 5.7–10.4 mL O2 min−1 kg−1; Hurley and Costa, 2001; Fahlman et al., 2008; Dassis et al., 2012; Fahlman et al., 2013) and Patagonia sea lions and Steller sea lions in air (Patagonia sea lions: 4.3–9.1; Steller sea lions: 3.0–9.5 mL O2 min−1 kg−1, Rosen and Trites, 2000; Dassis et al., 2012).
3. The species studied is also commonly called South American sea lion or Southern sea lion.
4. A typo was detected in the reported mass-specific metabolic rate (s O2) and the reported value for s O2 should be 53 mL O2 • min−1 • kg−0.6 or 8.6 ± 1.9 mL O2 • min−1 • kg−1.
Conflict of interest statement
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
References
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