Global marine plankton functional type biomass distributions: &amp;lt;i&amp;gt;Phaeocystis&amp;lt;/i&amp;gt; spp.

Vogt, Meike; O'Brien, Colleen; Peloquin, J.; Schoemann, Véronique; Breton, Elsa; Estrada, Marta; Gibson, Jae; Karentz, Deneb; Leeuwe, Maria A. van; Stefels, Jacqueline; Widdicombe, Claire E.; Peperzak, L.

doi:10.5194/essd-4-107-2012

Cited by 60 publications

(59 citation statements)

References 62 publications

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“…However, some phytoplankton groups also have properties that hamper the identification of one single realized ecological niche for all of its life forms. For example, the ubiquitous distribution of single Phaeocystis cells contrasts with the occurrence patterns of Phaeocystis colonies, which were investigated in this study (Vogt et al ). Furthermore, our results indicate that it is not currently possible to characterize the whole complexity of phytoplankton ecological niches due to the limited resolution of in situ environmental variables, and the scarcity of biological observations (discussed in further detail below).…”

Section: Discussionmentioning

confidence: 82%

“…Five of them describe autotrophic organisms and are investigated in this study. These include coccolithophores (O'Brien et al ), diatoms (Leblanc et al ), diazotrophs (Luo et al ), Phaeocystis (Vogt et al ), and picophytoplankton (Buitenhuis et al ). The number of raw observations within the investigated PFTs ranges from 3527 for Phaeocystis to 90,648 for the diatoms (Table ).…”

Section: Methodsmentioning

confidence: 99%

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Ecological niches of open ocean phytoplankton taxa

Brun

Vogt

Payne

et al. 2015

Limnology & Oceanography

115

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We characterize the realized ecological niches of 133 phytoplankton taxa in the open ocean based on observations from the MAREDAT initiative and a statistical species distribution model (MaxEnt). The models find that the physical conditions (mixed layer depth, temperature, light) govern large-scale patterns in phytoplankton biogeography over nutrient availability. Strongest differences in the realized niche centers were found between diatoms and coccolithophores. Diatoms (87 species) occur in habitats with significantly lower temperatures, light intensity and salinity, with deeper mixed layers, and with higher nitrate and silicate concentrations than coccolithophores (40 species). However, we could not statistically separate the realized niches of coccolithophores from those of diazotrophs (two genera) and picophytoplankton (two genera). Phaeocystis (two species) niches only clearly differed from diatom niches for temperature. While the realized niches of diatoms cover the majority of niche space, the niches of picophytoplankton and coccolithophores spread across an intermediate fraction and diazotroph and colonial Phaeocystis niches only occur within a relatively confined range of environmental conditions in the open ocean. Our estimates of the realized niches roughly match the predictions of Reynolds' C-S-R model for the global ocean, namely that taxa classified as nutrient stress tolerant have niches at lower nutrient and higher irradiance conditions than light stress tolerant taxa. Yet, there is considerable within-class variability in niche centers, and many taxa occupy broad niches, suggesting that more complex approaches may be necessary to capture all aspects of phytoplankton ecology.

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Section: Discussionmentioning

confidence: 82%

Section: Methodsmentioning

confidence: 99%

Ecological niches of open ocean phytoplankton taxa

Brun

Vogt

Payne

et al. 2015

Limnology & Oceanography

115

View full text Add to dashboard Cite

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“…Abundance was quantified based on biovolume calculated from each image. P. antarctica biovolume was quantified by assuming that each P. antarctica cell was 5 μm in diameter (reviewed in Vogt et al 2012), from which spherical volume was estimated for each cell per image. Diatom biovolume was estimated by selecting the most similar shape (sphere, cuboid, disk, cylinder, or ellipsoid; Jakobsen & Carstensen, 2011;Menden-Deuer & Lessard, 2000;Selz et al, 2018).…”

Section: Journal Of Geophysical Research: Oceansmentioning

confidence: 99%

Light Is the Primary Driver of Early Season Phytoplankton Production Along the Western Antarctic Peninsula

et al. 2019

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Light and dissolved iron (dFe) availability control net primary production (NPP) in much of the Southern Ocean, but the primary controller during spring in the western Antarctic Peninsula has never been assessed. Underwater light and dFe availability are sensitive to climate‐induced changes in upper ocean circulation, stratification, and sea ice cover, which can affect NPP and phytoplankton community composition, both of which can alter carbon drawdown and food web structure. We estimated in situ NPP, net community production, and heterotrophic respiration and contextualized our field measurements with satellite‐based historical NPP estimates. Average light exposure mainly controlled NPP, while low dFe was associated with greatest NPP, indicating that spring phytoplankton growth is light‐limited and not dFe‐limited. Using experiments that simulated varying mixed layer depths by exposing phytoplankton to a short period of in situ surface light (up to 150× the mean light in the mixed layer, comparable to the difference in light experienced by phytoplankton mixed from 50 m to the surface), we assessed the effect of phytoplankton photoacclimation on NPP and relative success of individual taxa. At moderate light exposure (<30×), phytoplankton experienced little photodamage or changes in NPP, and Phaeocystis antarctica grew more than diatoms. Conversely, phytoplankton exposed to high light (>60×) experienced significant photodamage, declines in NPP, and declines in P. antarctica, with no consistent changes in diatoms. These results support the idea that P. antarctica is better adapted to variable light than diatoms and suggest that deeper mixed layers with variable light will favor P. antarctica.

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“…2a). As can be seen in figure 7 of Vogt et al (2012), there is considerable sampling bias towards coastal waters, where dense Phaeocystis blooms can be a regular occurrence, and under which conditions a mix of colonial and single cells are often found. Under non-bloom conditions, Phaeocystis is mostly found as single cells, which cannot be distinguished from other nanophytoplankton with standard microscopic protocols, and therefore such measurements of background numbers of single Phaeocystis cells are almost absent from the database.…”

Section: Autotrophic Biomassmentioning

confidence: 99%

MAREDAT: towards a world atlas of MARine Ecosystem DATa

Buitenhuis

Vogt²,

Moriarty

et al. 2013

Earth Syst. Sci. Data

Self Cite

179

196

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Abstract. We present a summary of biomass data for 11 plankton functional types (PFTs) plus phytoplankton pigment data, compiled as part of the MARine Ecosystem biomass DATa (MAREDAT) initiative. The goal of the MAREDAT initiative is to provide, in due course, global gridded data products with coverage of all planktic components of the global ocean ecosystem. This special issue is the first step towards achieving this. The PFTs presented here include picophytoplankton, diazotrophs, coccolithophores, Phaeocystis, diatoms, picoheterotrophs, microzooplankton, foraminifers, mesozooplankton, pteropods and macrozooplankton. All variables have been gridded onto a World Ocean Atlas (WOA) grid (1 • × 1 • × 33 vertical levels × monthly climatologies). The results show that abundance is much better constrained than their carbon content/elemental composition, and coastal seas and other high productivity regions have much better coverage than the much larger volumes where biomass is relatively low. The data show that (1) the global total heterotrophic biomass (2.0-4.6 Pg C) is at least as high as the total autotrophic biomass (0.5-2.4 Pg C excluding nanophytoplankton and autotrophic dinoflagellates); (2) the biomass of zooplankton calcifiers (0.03-0.67 Pg C) is substantially higher than that of coccolithophores (0.001-0.03 Pg C); (3) patchiness of biomass distribution increases with organism size; and (4) although zooplankton biomass measurements below 200 m are rare, the limited measurements available suggest that Bacteria and Archaea are not the only important heterotrophs in the deep sea. More data will be needed to characterise ocean ecosystem functioning and associated biogeochemistry in the Southern Hemisphere and below 200 m. Future efforts to understand marine ecosystem composition and functioning will be helped both by further archiving of historical data and future sampling at new locations.Microzooplankton database:

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Global marine plankton functional type biomass distributions: <i>Phaeocystis</i> spp.

Cited by 60 publications

References 62 publications

Ecological niches of open ocean phytoplankton taxa

Ecological niches of open ocean phytoplankton taxa

Light Is the Primary Driver of Early Season Phytoplankton Production Along the Western Antarctic Peninsula

MAREDAT: towards a world atlas of MARine Ecosystem DATa

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