... parameters were calculated using CO2-SYS ( Lewis and Wallace, 1998 ) using the dissociation constants of Dickson and Millero (1987 ) ( Table 2 ). Table 2. Seawater parameters The experiment was carried out a total of nine times, using sperm from a different male for each experiment...

... the trigeminal ganglion. (A) Mechanical stimulus created by twice applying a glass probe to the receptor; (B) carbonated mineral water; (C) CO2-infused distilled water; (D) soda water; (E) 1.0% acetic acid; (F) 2.0% citric acid; (G) 5.0 mol l–1 sodium chloride. The large action potential in the middle of trace F...

... a submersible pump that re-circulated the water inside the respirometer. The fish was allowed to consume O 2 in the respirometer and the rate of depletion of P w O 2 was used to calculate as described below. The changes in water parameters (e.g. pH, P CO2 ) potentially associated with the use of closed...

...K. M. Gilmour; W. K. Milsom; F. T. Rantin; S. G. Reid; S. F. Perry SUMMARY Experiments were carried out to test the hypothesis that ventilatory and cardiovascular responses to hypercarbia (elevated water P CO2 ) in the tambaqui Colossoma macropomum are stimulated by externally oriented receptors...