The relationship between temperature and standard rate of metabolism in African lungfish, Protopterus aethiopicus, from Uganda

Ashley W. Seifert; Lauren J. Chapman

doi:10.2989/AJAS.2007.32.3.10.309

The relationship between temperature and standard rate of metabolism in African lungfish, Protopterus aethiopicus, from Uganda

Ashley W. Seifert
, Lauren J. Chapman

Producción científica: Article › revisión exhaustiva

Resumen

The relationship between temperature and metabolism among ancient (non-teleost) fishes, while largely unknown, is essential to an understanding of the effects of temperature on fish energetics. This study quantifies the effect of temperature on the standard rate of metabolism in the African lungfish, Protopterus aethiopicus. We present a Q₁₀ value of 3.3 for individuals ranging in body mass from 42-222g across an ecologically-relevant 10°C temperature range. Protopterus aethiopicus showed a positive bilogarithmic (log-log) relationship between the rate of oxygen consumption and body mass (range = 44-222g) at three water temperatures (20, 25, 30°C). However, adjusted mean rates of oxygen consumption differed among all three temperatures. A Q₁₀ value derived as the means of Q₁₀ values calculated for each individual lungfish averaged 3.3 ± 0.4 (SE) for 20-30°C. A comparison of literature-derived Q₁₀ values for both tropical and temperate fishes suggests a higher Q₁₀ in tropical species (n = 3) than in temperate species (n = 10) across an ecologically-relevant thermal range.

Idioma original	English
Páginas (desde-hasta)	299-303
Número de páginas	5
Publicación	African Journal of Aquatic Science
Volumen	32
N.º	3
DOI	https://doi.org/10.2989/AJAS.2007.32.3.10.309
Estado	Published - nov 2007

Nota bibliográfica

Funding Information:
the University of Florida, the National Science Foundation (IBN-0094393), the Wildlife Conservation Society, the Raney Fund, and Sigma Xi. Permission to conduct research in Uganda was obtained from the National Council for Science and Technology, the Office of the President, and Makerere University (Uganda). We thank S Takeuchi for her help with the metabolic runs. F Nordlie, B McNab, and J Albert provided helpful comments on this manuscript. Our experimental protocols for P. aethiopicus were approved by the University of Florida (IACUC Project #Z090).

Financiación

the University of Florida, the National Science Foundation (IBN-0094393), the Wildlife Conservation Society, the Raney Fund, and Sigma Xi. Permission to conduct research in Uganda was obtained from the National Council for Science and Technology, the Office of the President, and Makerere University (Uganda). We thank S Takeuchi for her help with the metabolic runs. F Nordlie, B McNab, and J Albert provided helpful comments on this manuscript. Our experimental protocols for P. aethiopicus were approved by the University of Florida (IACUC Project #Z090).

Financiadores	Número del financiador
Raney Fund
National Science Foundation (NSF)	IBN-0094393
Wildlife Conservation Society
Florida A and M University
Sigma-Aldrich

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Aquatic Science

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title = "The relationship between temperature and standard rate of metabolism in African lungfish, Protopterus aethiopicus, from Uganda",

abstract = "The relationship between temperature and metabolism among ancient (non-teleost) fishes, while largely unknown, is essential to an understanding of the effects of temperature on fish energetics. This study quantifies the effect of temperature on the standard rate of metabolism in the African lungfish, Protopterus aethiopicus. We present a Q10 value of 3.3 for individuals ranging in body mass from 42-222g across an ecologically-relevant 10°C temperature range. Protopterus aethiopicus showed a positive bilogarithmic (log-log) relationship between the rate of oxygen consumption and body mass (range = 44-222g) at three water temperatures (20, 25, 30°C). However, adjusted mean rates of oxygen consumption differed among all three temperatures. A Q10 value derived as the means of Q10 values calculated for each individual lungfish averaged 3.3 ± 0.4 (SE) for 20-30°C. A comparison of literature-derived Q10 values for both tropical and temperate fishes suggests a higher Q10 in tropical species (n = 3) than in temperate species (n = 10) across an ecologically-relevant thermal range.",

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N2 - The relationship between temperature and metabolism among ancient (non-teleost) fishes, while largely unknown, is essential to an understanding of the effects of temperature on fish energetics. This study quantifies the effect of temperature on the standard rate of metabolism in the African lungfish, Protopterus aethiopicus. We present a Q10 value of 3.3 for individuals ranging in body mass from 42-222g across an ecologically-relevant 10°C temperature range. Protopterus aethiopicus showed a positive bilogarithmic (log-log) relationship between the rate of oxygen consumption and body mass (range = 44-222g) at three water temperatures (20, 25, 30°C). However, adjusted mean rates of oxygen consumption differed among all three temperatures. A Q10 value derived as the means of Q10 values calculated for each individual lungfish averaged 3.3 ± 0.4 (SE) for 20-30°C. A comparison of literature-derived Q10 values for both tropical and temperate fishes suggests a higher Q10 in tropical species (n = 3) than in temperate species (n = 10) across an ecologically-relevant thermal range.

AB - The relationship between temperature and metabolism among ancient (non-teleost) fishes, while largely unknown, is essential to an understanding of the effects of temperature on fish energetics. This study quantifies the effect of temperature on the standard rate of metabolism in the African lungfish, Protopterus aethiopicus. We present a Q10 value of 3.3 for individuals ranging in body mass from 42-222g across an ecologically-relevant 10°C temperature range. Protopterus aethiopicus showed a positive bilogarithmic (log-log) relationship between the rate of oxygen consumption and body mass (range = 44-222g) at three water temperatures (20, 25, 30°C). However, adjusted mean rates of oxygen consumption differed among all three temperatures. A Q10 value derived as the means of Q10 values calculated for each individual lungfish averaged 3.3 ± 0.4 (SE) for 20-30°C. A comparison of literature-derived Q10 values for both tropical and temperate fishes suggests a higher Q10 in tropical species (n = 3) than in temperate species (n = 10) across an ecologically-relevant thermal range.

KW - Air-breathing fish

KW - Ecophysiology

KW - Metabolic rate

KW - Q

KW - Respirometry

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The relationship between temperature and standard rate of metabolism in African lungfish, Protopterus aethiopicus, from Uganda

Resumen

Nota bibliográfica

Financiación

ASJC Scopus subject areas

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