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Growth‐irradiance relationships in phytoplankton1

Open access
Falkowski, Paul G., Dubinsky, Zvy, Wyman, Kevin·1985·Limnology and Oceanography

Abstract

The steady state growth rates of three species of marine phytoplankton, Thalassiosira weisflogii, Isochrysis galbana, and Prorocentrum micans, were followed in turbidostat culture. At each growth irradiance, photosynthesis and respiration were measured by following changes in oxygen. Together with measurements of optical absorption cross sections, cellular chlorophyll, carbon and nitrogen, and excretion rates as well as knowledge of the quantum flux, the quantum requirement for growth (1/ϕµ) and photosynthesis (1/ϕ p) were calculated. Our results suggest that variations in growth rate caused by changes in irradiance may be related to changes in respiration rates relative to growth as well as changes in optical absorption cross sections for a given species. Interspecific differences in growth rate at a given irradiance are not related to changes in respiration however, but are primarily attributable to differences in optical absorption cross sections normalized to chlorophyll a and differences in chlorophyll: carbon ratios.

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Metadata

Authors
Falkowski, P. G., Dubinsky, Z., & Wyman, K.
Venue
Limnology and Oceanography
Publisher
Wiley
Published
1985-03
Volume
30
Issue
2
Pages
311-321
ISSN
  • 0024-3590 (ISSN-L)
  • 1939-5590
OpenAlex
W2002951050
Cited by
452
References
0
FWCI
13.94
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Growth‐irradiance relationships in phytoplankton1. https://app.cochat.ai/papers/10.4319/lo.1985.30.2.0311
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Falkowski, P. G., Dubinsky, Z., & Wyman, K. (1985). Growth‐irradiance relationships in phytoplankton1. Limnology and Oceanography. https://doi.org/10.4319/lo.1985.30.2.0311

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.