Diel vertical migration thresholds of Karenia brevis (Dinophyceae)

Light and nutrient availability change throughout dinoflagellate diel vertical migration (DVM) and/or with sub-population location in the water column along the west Florida shelf. Typically, the vertical depth of the shelf is greater than the distance a sub-population can vertically migrate during...

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Bibliographic Details
Published in:Harmful algae 2009-06, Vol.8 (5), p.692-698
Main Authors: Schaeffer, Blake A., Kamykowski, Daniel, Sinclair, Geoff, McKay, Laurie, Milligan, Edward J.
Format: Article
Language:English
Subjects:
Algae
Animal and plant ecology
Animal, plant and microbial ecology
Autoecology
Biological and medical sciences
Carbon
Diel vertical migration
Dinoflagellate
Dinophyceae
Freshwater
Fundamental and applied biological sciences. Psychology
Karenia brevis
Nitrogen
Plant cytology, morphology, systematics, chorology and evolution
Plants and fungi
Thallophyta
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Summary:Light and nutrient availability change throughout dinoflagellate diel vertical migration (DVM) and/or with sub-population location in the water column along the west Florida shelf. Typically, the vertical depth of the shelf is greater than the distance a sub-population can vertically migrate during a diel cycle, limiting the ability of a sub-population to photosynthetically fix carbon toward the surface and access nutrients sub-surface. This project investigated changes of Karenia brevis (C.C. Davis) G. Hansen et Moestrup intracellular carbon, nitrogen, internal nitrate (iNO 3), free amino acid (FAA), and total lipid concentrations in high-light, nitrate-replete (960 μmol quanta m −2 s −1, 80 μM NO 3), and high-light, nitrate-reduced (960 μmol quanta m −2 s −1,
ISSN:1568-9883
1878-1470
DOI:10.1016/j.hal.2009.01.002