Table 2.
Parameter symbol | Parameter descrption | Value | SD | Units | Equation | Source |
---|---|---|---|---|---|---|
A | Assimilation, egestion, and excretion costs | 0.685 | 0.0175 | – | (5) | Rice et al. (1983) |
Actday | Mean hourly transmitted activity value during the day | 1.582 | 0.1397 | m·sec−2 | (5) | Derived |
Actnight | Mean hourly transmitted activity value during the night | 0.808 | 0.0647 | m·sec−2 | (5) | Derived |
Ac | Coefficient of swim speed regression | 0.3478 | 0.0782 | – | (8) | Sambilay (1990) |
AM | Activity multiplier | 2 | – | – | (5) | Winberg (1956) and Kitchell et al. (1977) |
AR | Aspect Ratio | 1.756 | 0.26 | – | (8) | Measured |
b | Slope of relationship between metabolic rate and activity | 1.0907 | 0.1901 | – | (1), (2), (6) | Derived, Figure 1B |
Fj | Average energy density of Katsuwonis pelamis, Thunnus albacares, and Pomatomus saltatrix | 6210 | 220 | J·g−1 | (7) | Boggs and Kitchell (1991) and Hartman and Brandt (1995) |
Gv | von Bertalanffy growth rate, converted to mass. | 2.158 | 0.2158a | g−1·day−1 | (7) | Derived |
h d | Number of hours in the day period (0700–1800 h) | 12 | – | – | (6) | Measured |
h n | Number of hours in the night period (1900–0600 h) | 12 | – | – | (6) | Measured |
Int | Intercept of swim speed regression | −0.828 | 0.2299 | – | (8) | Sambilay (1990) |
Lc | Coefficient of swim speed regression | 0.6196 | 0.0562 | – | (8) | Sambilay (1990) |
Oxy | Oxy calorific coefficient | 14.14 | 0.135 | J·mgO2 −1 | (5) | Elliott and Davison (1975) |
Q 10 | Rate at which standard metabolism increases with a 10°C increase | 1.5536 | 0.15536a | – | (10) | Pirozzi and Booth (2009) |
log(r) | Intercept of relationship between metabolic rate and swimming speed | 4.6423 | 0.1867 | – | (3), (4) | Derived, Figure 1A |
R a | Intercept of relationship between metabolic rate and mass | 0.0067 | 0.00067a | – | (9) | Clarke and Johnston (1999) |
R b | Slope of relationship between metabolic rate and mass | −0.21 | 0.11 | – | (9) | Clarke and Johnston (1999) |
log(s) | Intercept of relationship between metabolic rate and activity | 4.2387 | 0.1777 | – | (1), (2), (6) | Derived, Figure 1B |
SL | Standard length | 49 | 5.745 | cm | (8) | Measured |
Speed | Routine swimming speed | 0.7245 | 0.2376 | m·sec−1 | Derived | |
T | Temperature | 23.8 | 0.53 | °C | (10) | Measured |
W | Mass of fish | 1816.3 | 621.3 | g | (7) | Measured |
z | Slope of relationship between metabolic rate and swimming speed | 1.3098 | 0.3843 | – | (3), (4) | Derived, Figure 1A |
Indicate parameters that have an assumed SD 10% of the mean.