What question did this study set out to answer?

Determine how varying measurement and acclimatization temperatures influence the respiratory rate per unit of chlorophyll in different marine planktonic diatom species and clones.

August 1, 1962Canadian Journal of Microbiology

Studies of Marine Planktonic Diatoms: Iii. Some Effects of Temperature on Respiration of Five Species

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Authors

JRJ. H. RytherDartmouth College RGR. R. L. GuillardRutgers, The State University of New Jersey

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Implication

Experimental study reveals divergent respiratory responses to temperature across marine diatom clones, highlighting significant intraspecific variation over cell size differences.

Key Points

Determine how varying measurement and acclimatization temperatures influence the respiratory rate per unit of chlorophyll in different marine planktonic diatom species and clones.
Measured respiratory coefficients (oxygen consumption per unit chlorophyll) across six clones representing five marine diatom species at 5°, 10°, 15°, 20°, and 25 °C.
Acclimatized diatom cultures at each experimental temperature supporting sufficient cell growth prior to respiration assessment.
Eurythermal clones exhibited the highest respiratory coefficients and a steady increase in respiration across temperatures, with a Q10 of approximately 2.0.
Stenothermal clones showed lower respiratory coefficients, lower Q10 values, and more variable, irregular respiratory responses across the temperature gradient.
Intraspecific variation between clones of the same species exceeded interspecific variation observed between species differing in cell size by two orders of magnitude.

Cite This Study

Ryther et al. (1962) studied this question.

synapsesocial.com/papers/6a962fa9b94f7f4835bad156 https://doi.org/10.1139/m62-058

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Implication

Experimental study reveals divergent respiratory responses to temperature across marine diatom clones, highlighting significant intraspecific variation over cell size differences.

Studies of Marine Planktonic Diatoms: Iii. Some Effects of Temperature on Respiration of Five Species

Discussion

Member takes

Implication

Key Points

Cite This Study

Studies of Marine Planktonic Diatoms: Iii. Some Effects of Temperature on Respiration of Five Species

Discussion

Member takes

Implication

Key Points

Cite This Study

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