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Title: Size dependence of growth rate, respiratory electron transport system activity, and chemical composition in marine diatoms in the laboratory
Authors: Blasco, Dolors
Packard, T. T. 
Garfield, Paula C.
UNESCO Clasification: 251001 Oceanografía biológica
Keywords: Cell size
Growth rate
Cell composition
Issue Date: 1982
Publisher: 0022-3646
Journal: Journal of Phycology 
Abstract: The dependence of growth, electron transport system activity and chemical composition on the size of diatoms was examined during the exponential phase of growth. The six different marine centric species compared ranged in volume from 7.7 μm3 to 62 × 105μm3. A size dependence was observed for growth, 14C uptake, respiration and the productivity index (14C/chl a). Although the size dependence of all parameters was similar, the results indicate that on a carbon basis, growth efficiency decreases with increasing size. The C/N and C/chl a ratios were not size dependent. The importance of the surface area to cell volume ratio, and the importance of carbon per unit volume in determining the observed size dependence are discussed.
ISSN: 0022-3646
DOI: 10.1111/j.1529-8817.1982.tb03156.x
Source: Journal of Phycology [ISSN 0022-3646], v. 18, p. 58-63
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