Cited by 514Marine and coastal ecosystemsAquatic Ecosystems and Phytoplankton DynamicsMicrobial Community Ecology and Physiology

Cell Size as a Key Determinant of Phytoplankton Metabolism and Community Structure

Marañón, Emilio·2015·Annual Review of Marine Science

Abstract

Phytoplankton size structure controls the trophic organization of planktonic communities and their ability to export biogenic materials toward the ocean's interior. Our understanding of the mechanisms that drive the variability in phytoplankton size structure has been shaped by the assumption that the pace of metabolism decreases allometrically with increasing cell size. However, recent field and laboratory evidence indicates that biomass-specific production and growth rates are similar in both small and large cells but peak at intermediate cell sizes. The maximum nutrient uptake rate scales isometrically with cell volume and superisometrically with the minimum nutrient quota. The unimodal size scaling of phytoplankton growth arises from ataxonomic, size-dependent trade-off processes related to nutrient requirement, acquisition, and use. The superior ability of intermediate-size cells to exploit high nutrient concentrations explains their biomass dominance during blooms. Biogeographic patterns in phytoplankton size structure and growth rate are independent of temperature and driven mainly by changes in resource supply.

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Crossref · 10.1146/annurev-marine-010814-015955

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131 of 131 references verified0 citation errors · 0 not checkable

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Authors
Marañón, E.
Affiliations
Departamento de Ecología y Biología Animal, Universidade de Vigo, 36310 Vigo, Spain;
Venue
Annual Review of Marine Science
Published
2015-01-03
Volume
7
Issue
1
Pages
241-264
ISSN
  • 1941-0611 (ISSN-L)
  • 1941-1405
OpenAlex
W2124304330
Cited by
514
References
131
Citations by year
2026: 37 · 2025: 62 · 2024: 60 · 2023: 45 · 2022: 52 · 2021: 50 · 2020: 51 · 2019: 37 · 2018: 49 · 2017: 31 · 2016: 26 · 2015: 14
FWCI
2.09
Type
journal article
Language
en
Open access
closed
Locations
  • Annual Review of Marine Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
  • Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
  • Physical Sciences › Environmental Science › Ecology › Microbial Community Ecology and Physiology
Keywords
phytoplankton size structure, cell size, phytoplankton metabolism, allometric scaling, nutrient uptake rate, growth rate, phytoplankton blooms, trophic organization, resource supply, biogeographic patterns
MeSH terms
Energy Metabolism, Environmental Monitoring, Eutrophication, Models, Theoretical, Oceans and Seas, Phytoplankton, Seawater, Biomass

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