Journal
JOURNAL OF PLANKTON RESEARCH
Volume 37, Issue 3, Pages 500-508Publisher
OXFORD UNIV PRESS
DOI: 10.1093/plankt/fbv021
Keywords
phytoplankton; annual cycles; spring blooms; mixed layer
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Funding
- New Zealand Government
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) - Bolsa de Produtividade em Pesquisa [Process: 307385/2013-2]
- University of Tasmania
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Several hypotheses exist that describe phytoplankton spring blooms in temperate and subpolar oceans: the critical depth, shoaling mixed layer (ML), critical turbulence, onset of stratification and disturbance-recovery hypotheses. These theories appear to be mutually exclusive and none of them describe the annual cycle of phytoplankton biomass. Here, we present a model of the annual cycle in phytoplankton that recognizes that phytoplankton are not always mixed throughout the so-called ML, and that it is important to distinguish between the surface biomass and depth-integrated phytoplankton. Once these important distinctions are made, the annual cycles and blooms in surface and depth-integrated phytoplankton can be described straightforwardly in terms of the physical drivers and biotic responses.
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