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Open Access item Phytoplankton potential growth rate versus increase in cell numbers: estimation of cell lysis

Authors:Garcés, Esther
Masó, Mercedes
Keywords:Dinoflagellate, HABs, Growth rate, Loss rate
Issue Date:Mar-2001
Publisher:Inter Research
Citation:Marine Ecology Progress Series 212: 297-300 (2001)
Abstract:The in situ growth rate of phytoplankton is defined as the potential growth rate without adjustment for losses due to cell mortality when it is measured by the cell cycle approach. In contrast, the method that assesses the cell number variation of the population in diffusion chambers takes cell mortality into account. We compare the 2 methods for natural blooms of dinoflagellates (Alexandrium minutum, Alexandrium taylori, Ceratium furca, Dinophysis sacculus, Gymnodinium pulchellum and Gyrodinium corsicum) grown in various situations and locations and data reported elsewhere. The in situ potential growth rates showed great intraspecific variability. The use of the differences between the 2 methods as a measure of in situ cell lysis is discussed.
Description:4 pages, 1 figure, 1 table
Publisher version (URL):http://dx.doi.org/10.3354/meps212297
URI:http://hdl.handle.net/10261/49705
ISSN:0171-8630
E-ISSNmetadata.dc.identifier.doi = DOI:1616-1599
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Appears in Collections:(ICM) Artículos

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