Combustion Calorimetry

Lamprecht, I.

doi:10.1016/s1573-4374(99)80007-7

Cited by 17 publications

(15 citation statements)

References 91 publications

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“…For energy comparison between tissues it is also more useful to use AFDW, because different tissues often have different ash contents (Lamprecht 1999). Although the literature sources suggest that ash content can be determined using the residue in the calorimeter cup after combustion (Lamprecht 1999), the more accurate determination is to make an independent estimate of the ash content of an organism (Paine 1971; Craig et al 1978; Cherel and Ridoux 1992). …”

Section: Methodsmentioning

confidence: 99%

Review: the energetic value of zooplankton and nekton species of the Southern Ocean

Schaafsma¹,

Cherel

Flores

et al. 2018

Mar Biol

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Understanding the energy flux through food webs is important for estimating the capacity of marine ecosystems to support stocks of living resources. The energy density of species involved in trophic energy transfer has been measured in a large number of small studies, scattered over a 40-year publication record. Here, we reviewed energy density records of Southern Ocean zooplankton, nekton and several benthic taxa, including previously unpublished data. Comparing measured taxa, energy densities were highest in myctophid fishes (ranging from 17.1 to 39.3 kJ g−1 DW), intermediate in crustaceans (7.1 to 25.3 kJ g−1 DW), squid (16.2 to 24.0 kJ g−1 DW) and other fish families (14.8 to 29.9 kJ g−1 DW), and lowest in jelly fish (10.8 to 18.0 kJ g−1 DW), polychaetes (9.2 to 14.2 kJ g−1 DW) and chaetognaths (5.0–11.7 kJ g−1 DW). Data reveals differences in energy density within and between species related to size, age and other life cycle parameters. Important taxa in Antarctic food webs, such as copepods, squid and small euphausiids, remain under-sampled. The variability in energy density of Electrona antarctica was likely regional rather than seasonal, although for many species with limited data it remains difficult to disentangle regional and seasonal variability. Models are provided to estimate energy density more quickly using a species’ physical parameters. It will become increasingly important to close knowledge gaps to improve the ability of bioenergetic and food web models to predict changes in the capacity of Antarctic ecosystems to support marine life.Electronic supplementary materialThe online version of this article (10.1007/s00227-018-3386-z) contains supplementary material, which is available to authorized users.

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Section: Methodsmentioning

confidence: 99%

Review: the energetic value of zooplankton and nekton species of the Southern Ocean

Schaafsma¹,

Cherel

Flores

et al. 2018

Mar Biol

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“…ΔH B is the enthalpy change for the reaction C substrate → C biomass + yO 2 , which for carbohydrate going to vegetative plant biomass equals +(30 ± 20) kJ mol −1 (calculated from data in Ellingson et al 2003, Gary et al 1995, Lamprecht 1999), and ΔH CO2 for carbohydrate equals –470 kJ mol −1 , i.e. the heat of combustion of aqueous sugars (Domalski 1972, Miller and de Pablo 2000).…”

Section: Calorespirometric Measurement Of Substrate Carbon Conversionmentioning

confidence: 99%

Temperature responses of substrate carbon conversion efficiencies and growth rates of plant tissues

Hansen

Thomas

Arnholdt‐Schmitt

2009

Physiologia Plantarum

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Growth rates of plant tissues depend on both the respiration rate and the efficiency with which carbon is incorporated into new structural biomass. Calorespirometric measurement of respiratory heat and CO 2 rates, from which both efficiency and growth rate can be calculated, is a well established method for determining the effects of rapid temperature changes on the respiratory and growth properties of plant tissues. The effect of the alternative oxidase/cytochrome oxidase activity ratio on efficiency is calculated from first principles. Data on the temperature dependence of the substrate carbon conversion efficiency are tabulated. These data show that ε is maximum and approximately constant through the optimum growth temperature range and decreases rapidly as temperatures approach temperature limits to growth. The width of the maximum and the slopes of decreasing ε at high and low temperatures vary greatly with species, cultivars and accessions.

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“…Calculating the 'wet' energetic value can therefore be skewed, as a lower water content will result in a higher wet weight energetic value (Hislop et al 1991). Using fixation solutions also often results in loss of water or lipids and can therefore bias the relationship between WW, DW, chemical composition and energy content (Lamprecht 1999). Therefore, expression of energy density in kJ g -1 DW can be a better tool for comparison of the energy density within and between species.…”

Section: Bomb Calorimetrymentioning

confidence: 99%

“…As DW includes inorganic material, expression of the energetic density in kJ g -1 ash free dry weight (AFDW), representing the mass of only the organic part of the body or tissue, can in some cases be a more suited unit of measurement, for instance for growth and translocation studies (Lamprecht, 1999).…”

Section: Bomb Calorimetrymentioning

confidence: 99%

“…For energy comparison between tissues it is also more useful to use AFDW, because different tissues often have different ash contents (Lamprecht, 1999). Although literature sources suggest that ash content can be determined by using the residue in the calorimeter cup after combustion (Lamprecht 1999), the more accurate determination is to make an independent estimate of the ash content of an organism (Paine 1971;Craig et al 1978;Cherel & Ridoux 1992).…”

Section: Bomb Calorimetrymentioning

confidence: 99%

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Life in de polar oceans : the role of sea ice in the biology and ecology of marine species

Schaafsma¹

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Combustion Calorimetry

Cited by 17 publications

References 91 publications

Review: the energetic value of zooplankton and nekton species of the Southern Ocean

Review: the energetic value of zooplankton and nekton species of the Southern Ocean

Temperature responses of substrate carbon conversion efficiencies and growth rates of plant tissues

Life in de polar oceans : the role of sea ice in the biology and ecology of marine species

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