scholarly journals Physiological and morphological correlates of among-individual variation in standard metabolic rate in the leopard frog Rana pipiens

2005 ◽  
Vol 208 (6) ◽  
pp. 1201-1208 ◽  
Author(s):  
A. C. Steyermark
Keyword(s):  
Metabolic Rate ◽  
Individual Variation ◽  
Rana Pipiens ◽  
Standard Metabolic Rate ◽  
Leopard Frog

Relationship between individual variation in morphological characters and swimming costs in brook charr (Salvelinus fontinalis) and yellow perch (Perca flavescens)

2002 ◽  
Vol 205 (7) ◽  
pp. 1031-1036 ◽  
Author(s):  
Patrice Boily ◽  
Pierre Magnan
Keyword(s):  
Metabolic Rate ◽  
Individual Variation ◽  
Yellow Perch ◽  
Body Shape ◽  
Perca Flavescens ◽  
Standard Metabolic Rate ◽  
Morphological Characters ◽  
Brook Charr ◽  
Indirect Consequence ◽  
Thrust Forces

SUMMARY The objective of this study was to examine if individual variation in morphological characters is related to swimming costs in wild and domestic brook charr, and in wild yellow perch. Our results indicate that absolute swimming cost was higher in wild and domestic brook charr individuals having a stout body shape, and these individuals are therefore less efficient swimmers. These results are consistent with field observations that described relationships between individual variation in morphology and habitat use in salmonids. Further analyses indicated that standard metabolic rates were higher in individuals having a stout body shape, and that net swimming cost was not related to body shape. Accordingly, the higher swimming cost of stout individuals is probably an indirect consequence of an increase in standard metabolic rate. In wild yellow perch, absolute and net swimming costs were higher in individuals having a stout body shape and a low aspect caudal fin,and standard metabolic rate was not related to body shape. Therefore, in contrast to brook charr, individual variation in the swimming cost of yellow perch appears to be related to morphological characters that affect drag and thrust forces, which is consistent with previously published inter-specific observations.

scholarly journals Plasticity, repeatability and phenotypic correlations of aerobic metabolic traits in a small estuarine fish

2020 ◽  
Vol 223 (14) ◽  
pp. jeb228098
Author(s):  
Jessica E. Reemeyer ◽  
Bernard B. Rees
Keyword(s):  
Elevated Temperature ◽  
Metabolic Rate ◽  
Individual Variation ◽  
Rank Order ◽  
Standard Metabolic Rate ◽  
Estuarine Fish ◽  
Low Oxygen ◽  
Multiple Control ◽  
Metabolic Traits ◽  
Phenotypic Correlations

ABSTRACTStandard metabolic rate (SMR), maximum metabolic rate (MMR), absolute aerobic scope (AAS) and critical oxygen tension (Pcrit) were determined for the Gulf killifish, Fundulus grandis, an ecologically dominant estuarine fish, acclimated to lowered salinity, elevated temperature and lowered oxygen concentration. Acclimation to low salinity resulted in a small, but significant, elevation of Pcrit (suggesting lower tolerance of hypoxia); acclimation to elevated temperature increased SMR, MMR, AAS and Pcrit; acclimation to low oxygen led to a small increase in SMR, but substantial decreases in MMR, AAS and Pcrit. Variation in these metabolic traits among individuals was consistent and repeatable when measured during multiple control exposures over 7 months. Trait repeatability was unaffected by acclimation condition, suggesting that repeatability of these traits is not context dependent. There were significant phenotypic correlations between specific metabolic traits: SMR was positively correlated with MMR and Pcrit; MMR was positively correlated with AAS; and AAS was negatively correlated with Pcrit. In general, within-individual variation contributed more than among-individual variation to these phenotypic correlations. The effects of acclimation on these traits demonstrate that aerobic metabolism is plastic and influenced by the conditions experienced by these fish in the dynamic habitats in which they occur; however, the repeatability of these traits and the correlations among them suggest that these traits change in ways that maintain the rank order of performance among individuals across a range of environmental variation.

Hopping and swimming in the leopard frog,Rana pipiens: I. Step cycles and kinematics

1996 ◽  
Vol 230 (1) ◽  
pp. 1-16 ◽  
Author(s):  
Susan E. Peters ◽  
Lynn T. Kamel ◽  
David P. Bashor
Keyword(s):  
Rana Pipiens ◽  
Leopard Frog

Field-Testing a Standard Metabolic Rate Estimation Technique for Eastern Red-Backed Salamanders

2016 ◽  
Vol 50 (1) ◽  
pp. 138-144
Author(s):  
Patrick J Ruhl ◽  
Robert N Chapman ◽  
John B. Dunning
Keyword(s):  
Metabolic Rate ◽  
Field Testing ◽  
Standard Metabolic Rate ◽  
Estimation Technique ◽  
Rate Estimation
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