Oxygen consumption of East Siberian cod: no support for the metabolic cold adaptation theory

Jordan, Anders D.; Jungersen, M.; Steffensen, John F.

doi:10.1111/j.1095-8649.2001.tb00152.x

Cited by 25 publications

(7 citation statements)

References 20 publications

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“…Since its introduction the MCA concept has been vigorously discussed in the literature. While most studies support higher activity rates for enzymes associated with energy metabolism in species from polar regions (Hochachka 1988;Crockett and Sidell 1990;West et al 1999;Kawall et al 2002a) (but also see Magnoni et al 2013), experimental results deviate widely at the whole-organism level (Holeton 1974; Torres and Somero 1988;Clarke and Johnston 1999;Jordan et al 2001;Steffensen 2002;White et al 2012). Our results agree well with a recent analysis by White et al (2012), who found evidence for MCA at different levels of organisation in fish, with strongest support at the level of whole-animal metabolic rate.…”

Section: Discussionsupporting

confidence: 87%

Temperature-dependent metabolism in Antarctic fish: Do habitat temperature conditions affect thermal tolerance ranges?

2016

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Climatic warming is most pronounced in the polar regions. For marine ectotherms such as fish, temperature is a key abiotic factor, influencing metabolic processes. Species distribution and abundance are driven by reproduction and growth, which depend on available energy exceeding baseline maintenance costs. These routine metabolic costs make up a large part of the energy expenditure. Thermal stress can increase routine metabolism, affecting an organism's fitness. Data of routine metabolic rates of Antarctic fish are scarce, and comparability of existing data sets is often problematic due to ecological differences between species and in experimental protocols. Our objective was to compare routine metabolism and thermal sensitivity of species with similar ecotypes but different thermal environments to assess possible ecological implications of warming waters on energy expenditure in Antarctic fish, a fauna characterised by geographic isolation, endemism and putative thermal adaptation. We measured routine metabolic rates of three benthic Antarctic fish species from low-and high-Antarctic regions at habitat temperature and during acute temperature increase. Our analysis revealed differences in metabolic rates at the same temperature suggesting local adaptation to habitat temperature. Acute thermal stress induced a comparable response of metabolic rates to increasing temperature. We conclude that higher metabolic rates and thus higher energetic costs could be associated with narrower thermal windows, a potential disadvantage to the endemic high-Antarctic fish fauna facing the challenge of climate change.

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Section: Discussionsupporting

confidence: 87%

Temperature-dependent metabolism in Antarctic fish: Do habitat temperature conditions affect thermal tolerance ranges?

2016

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“…All the fish were deprived of food for 48-h prior to entering the chambers to ensure a complete gastric evacuation. We allowed them an additional 15-h acclimation period inside the chambers before measuring oxygen consumption, a settling time that has been found to be enough to ensure that the fish have stabilized at a steady rate of oxygen consumption (see Drud Jordan et al, 2001). The fish were kept in darkness and always remained quiescent throughout the trials.…”

Section: Metabolic Ratesmentioning

confidence: 99%

Microgeographic variation in metabolic rate and energy storage of brown trout: countergradient selection or thermal sensitivity?

2006

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We examined the influence of habitat size, growth opportunity, and the thermal conditions experienced during early development on the standard metabolic rate (SMR) of juvenile brown trout (Salmo trutta) from six natural populations to contrast the hypothesis of countergradient selection in metabolic rate. The study populations differed significantly in SMR. Population means for SMR changed in response to the temperature experienced during the yolkabsorption stage, when the risk of oxygen deficit increases and the vulnerability to hypoxia is highest. We also found a strong negative correlation between the temperature experienced during the first 2 months after yolk resorption and SMR, which supports the hypothesis of countergradient variation. Moreover, we detected a strong negative correlation between an index of growth opportunity and relative lipid content, suggesting that the risk of energy shortfall could be a major force in the evolution of storage strategies. Our results suggest that temperature can shape the evolution of metabolic rate during the yolk-absorptive stage or the first feeding stage, while energy storage levels may be more sensitive to thermal constraints acting on growth rates.

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“…Single fish were introduced into a perspex circular arena respirometer (diameter 41.0 cm, height 11 cm, volume 14.2 l; Steinhausen 2005; Fig. 1) after being left to acclimatize for minimum of 6 h. This period appeared to be sufficient for other fish to settle to a routine oxygen consumption rate (Steffensen et al 1984;Jordan et al 2001). The respirometer was submerged in water to keep the temperature constant at 13°C.…”

Section: Respirometry Of Spontaneous Swimmingmentioning

confidence: 99%

Pectoral fin beat frequency predicts oxygen consumption during spontaneous activity in a labriform swimming fish (Embiotoca lateralis)

Tudorache

Jordan

Svendsen³

et al. 2008

Environ Biol Fish

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The objective of this study was to identify kinematic variables correlated with oxygen consumption during spontaneous labriform swimming. Kinematic variables (swimming speed, change of speed, turning angle, turning rate, turning radius and pectoral fin beat frequency) and oxygen consumption (MO 2 ) of spontaneous swimming in Embiotoca lateralis were measured in a circular arena using video tracking and respirometry, respectively. The main variable influencing MO 2 was pectoral fin beat frequency (r 2 =0.71). No significant relationship was found between swimming speed and pectoral fin beat frequency. Complementary to other methods within biotelemetry such as EMG it is suggested that such correlations of pectoral fin beat frequency may be used to measure the energy requirements of labriform swimming fish such as E. lateralis in the field, but need to be taken with great caution since movement and oxygen consumption patterns are likely to be quite different in field situation compared to a small lab tank. In addition, our methods could be useful to measure metabolic costs of growth and development, or bioassays for possible toxicological effects on fish.

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Oxygen consumption of East Siberian cod: no support for the metabolic cold adaptation theory

Cited by 25 publications

References 20 publications

Temperature-dependent metabolism in Antarctic fish: Do habitat temperature conditions affect thermal tolerance ranges?

Temperature-dependent metabolism in Antarctic fish: Do habitat temperature conditions affect thermal tolerance ranges?

Microgeographic variation in metabolic rate and energy storage of brown trout: countergradient selection or thermal sensitivity?

Pectoral fin beat frequency predicts oxygen consumption during spontaneous activity in a labriform swimming fish (Embiotoca lateralis)

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