FIGURE

Fig. 6

ID

ZDB-FIG-240416-29

Publication

Reed et al., 2023 - A role for dopamine in control of the hypoxic ventilatory response via D₂ receptors in the zebrafish gill

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Fig. 6

Acclimation to chronic hypoxia reduced the aquatic surface respiration (ASR) response to acute hypoxia. Adult zebrafish previously acclimated to hypoxia for various timepoints (24 h, 48 h, 72 h, or 7 days) were exposed to successive bouts of progressively more severe acute hypoxia (100, 50, 30, and 15 mmHg). Data points for all groups were connected with a continuous line for clarity. Acclimation to hypoxia for 48 h, 72 h, and 7 days significantly reduced mean ± SEM cumulative time in ASR during acute hypoxic exposure (squares) at Po2 values below 30 mmHg, compared with unacclimated zebrafish (circles; Mann–Whitney U test; p < .01; N = 8 in control and acclimated groups for each Po2 and each period of acclimation).

Expression Data

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Antibody Labeling

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Acknowledgments

This image is the copyrighted work of the attributed author or publisher, and ZFIN has permission only to display this image to its users. Additional permissions should be obtained from the applicable author or publisher of the image. Full text @ J. Comp. Neurol.