The effect of hypoxia on ventilation frequency in startled common sole Solea solea
Ventilation frequency (F V) in motionless common sole Solea solea was measured before and after a startling stimulus in normoxia and in hypoxia (15% air saturation). Startling reduced F V in normoxia (from mean ±
41 ± 3·3 beats min−1 to near zero, i.e. 2·0 ± 1·8 beats min−1) and in hypoxia (from mean ± s.e. 80 ± 4·4 to 58·8 ± 12·9 beats min−1). It
is suggested that the maintenance of high F
V in hypoxia may increase the probability of detection by predators compared to normoxia.
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Document Type: Research Article
Publication date: 2012-06-01