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Updated: Mar 19, 2026
Induction of Hypoxia in Living Frog and Zebrafish Embryos
Published on: June 26, 2017
Hypoxia tolerance decreases with body size in red drum Sciaenops ocellatus
Y K Pan1, R Ern1, A J Esbaugh1
1University of Texas Marine Science Institute, 750 Channel View Dr, Port Aransas, TX, 78373, U.S.A.
Abstract:
Mass-specific oxygen consumption rate, i.e. standard metabolic rate (Rs ) and critical oxygen tension (Pcrit ) of red drum Sciaenops ocellatus were measured and scaled over a 2500-fold range in mass (MF ; 0·26-686 g). Rs conformed to well established models (Rs = 3·73·91 MF (-0·21) ; r(2) = 0·86) while Pcrit increased over the size range (Pcrit = 3·15 log10 MF + 16·19; r(2) = 0·44). This relationship may be ecologically advantageous as it would allow smaller S. ocellatus to better utilize hypoxic zones as habitat and refuge from predators.
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