The Company of Biologists

Table 1.

Mass-specific metabolic rates of Antarctic and subantarctic fur seal pups on Possession Island, Îles Crozet

	Antarctic fur seal	N	Subantarctic fur seal	N
Body mass (kg)	9.64±0.43	14	9.45±0.31	15
Age (days)	64±1	14	62±1	15
In-air RMR (ml O₂ kg^-1 min^-1)	17.1±0.6^{^*}	14	14.1±0.5^{^*}	14
In-water SMR (ml O₂ kg^-1 min^-1)	22.9±2.5^{^†}	12	14.6±1.0^{^†}	15

	Antarctic fur seal	N	Subantarctic fur seal	N
Body mass (kg)	9.64±0.43	14	9.45±0.31	15
Age (days)	64±1	14	62±1	15
In-air RMR (ml O₂ kg^-1 min^-1)	17.1±0.6^{^*}	14	14.1±0.5^{^*}	14
In-water SMR (ml O₂ kg^-1 min^-1)	22.9±2.5^{^†}	12	14.6±1.0^{^†}	15

Values are means ± S.E.M.

RMR, resting metabolic rate; SMR, standard metabolic rate.

and

denote significant differences at P<0.001 and P<0.003, respectively