The Company of Biologists

Table 1.

Mean and mean maximum (± s.e.m.) dive duration and dive depth at different times of year in macaroni penguins

	Duration (s)					Depth (m)
Period	Mean	Maximum	N	Mean	Maximum	N
Summer	97.3±1.4^λ,γ	161.8±1.7^λ,γ	54	31.8±1.4^λ	78.8±2.8^λ,γ	31
Mid-winter	134.0±2.3^{\({\varphi}\) ⁠,λ}	214.0±2.5^{\({\varphi}\) ⁠,λ}	38	45.0±2.9^λ,γ	104.5±4.5^λ	22
Late-winter	114.7±3.0^{\({\varphi}\) ⁠,γ}	200.4±3.5^{\({\varphi}\) ⁠,γ}	24	33.7±1.9^γ	93.3±3.9^γ	17

	Duration (s)					Depth (m)
Period	Mean	Maximum	N	Mean	Maximum	N
Summer	97.3±1.4^λ,γ	161.8±1.7^λ,γ	54	31.8±1.4^λ	78.8±2.8^λ,γ	31
Mid-winter	134.0±2.3^{\({\varphi}\) ⁠,λ}	214.0±2.5^{\({\varphi}\) ⁠,λ}	38	45.0±2.9^λ,γ	104.5±4.5^λ	22
Late-winter	114.7±3.0^{\({\varphi}\) ⁠,γ}	200.4±3.5^{\({\varphi}\) ⁠,γ}	24	33.7±1.9^γ	93.3±3.9^γ	17

Significant differences between pairs within each column are represented by the following symbols λ,γ,

\({\varphi}\)

⁠.