The Company of Biologists

Table 4.

Comparison of swimming performance variables for S. lalandi with those of other similarly sized active teleosts

Variable	S. lalandi			Sockeye salmon
N	10	2	12	12
Temperature (°C)	20	25	∼15	25
Body mass (kg)	2.1	1.9	3.0	2.2
Body length (m)	0.56	0.55	0.63	0.51
U_opt (BL s⁻¹)	1.2	1.7	1.0	2.0
GCOT_min (mg kg⁻¹ m⁻¹)	0.107 (0.127)^{^a}	0.164 (0.130)^{^a}	0.135	0.158
GCOT_min (mg kg⁻¹BL⁻¹)	0.062	0.088	0.085	0.081
NCOT at U_opt (mg kg⁻¹m⁻¹)	0.069	0.105	0.050	0.100
NCOT at U_opt (mg kg⁻¹BL⁻¹)	0.039	0.058	0.032	0.051

Variable	S. lalandi			Sockeye salmon
N	10	2	12	12
Temperature (°C)	20	25	∼15	25
Body mass (kg)	2.1	1.9	3.0	2.2
Body length (m)	0.56	0.55	0.63	0.51
U_opt (BL s⁻¹)	1.2	1.7	1.0	2.0
GCOT_min (mg kg⁻¹ m⁻¹)	0.107 (0.127)^{^a}	0.164 (0.130)^{^a}	0.135	0.158
GCOT_min (mg kg⁻¹BL⁻¹)	0.062	0.088	0.085	0.081
NCOT at U_opt (mg kg⁻¹m⁻¹)	0.069	0.105	0.050	0.100
NCOT at U_opt (mg kg⁻¹BL⁻¹)	0.039	0.058	0.032	0.051

Values in parentheses were predicted using GCOT_min (mg kg⁻¹m⁻¹)=0.1525M_b^−0.25(modified from Brett, 1964);note that this equation was formulated using data from animals at 15°C. Data for sockeye salmon are from (Lee, C. G. et al., 2003); data for yellowfin tuna are from(Dewar and Graham, 1994).

View Large

This Feature Is Available To Subscribers Only