Respiratory metabolism of mosquitofish, Gambusia affinis: effects of temperature, dissolved oxygen, and sex difference

@article{Cech2004RespiratoryMO,
  title={Respiratory metabolism of mosquitofish, Gambusia affinis: effects of temperature, dissolved oxygen, and sex difference},
  author={Joseph J. Cech and Michael J. Massingill and Bruce Vondracek and Alison L. Linden},
  journal={Environmental Biology of Fishes},
  year={2004},
  volume={13},
  pages={297-307}
}
Routine respiratory metabolic rates of mosquitofish (∼0.2 g live weight) were determined at 10, 15, 20, 25, 30, and 35°C at normoxic, hypoxic (= 40 torr PO2), and extreme hypoxic (= 25 torr PO2) conditions. Rates generally increased with increases in temperature (overall Q10 = 2.11 at normoxia). Significant depressions (P<0.05) in rates were measured at 30 and 35°C at extreme hypoxic conditions. Males exhibited higher mortality at extreme hypoxia than females, especially at 35°C. Metabolic… CONTINUE READING
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