title: Hypoxia tolerance decreases with body size in red drum Sciaenops ocellatus.
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.
authors.affiliation: University of Texas Marine Science Institute, 750 Channel View Dr, Port Aransas, TX, 78373, U.S.A.
authors.forename: Y K
authors.initials: YK
authors.lastname: Pan
authors.affiliation: University of Texas Marine Science Institute, 750 Channel View Dr, Port Aransas, TX, 78373, U.S.A.
authors.forename: R
authors.initials: R
authors.lastname: Ern
authors.affiliation: University of Texas Marine Science Institute, 750 Channel View Dr, Port Aransas, TX, 78373, U.S.A.
authors.forename: A J
authors.initials: AJ
authors.lastname: Esbaugh
mesh_terms: D000064:Acclimatization; D000818:Animals; D049628:Body Size; D017753:Ecosystem; D000860:Hypoxia / Q000378:metabolism*; D010101:Oxygen Consumption; D010473:Perciformes / Q000378:metabolism*
keywords: SMR; critical oxygen tension; hypoxia refuge; standard metabolic rate