Predicting marine phytoplankton community size structure from empirical relationships with remotely sensed variables
Carolyn Barnes,Xabier Irigoien,José A. A. De Oliveira,David Maxwell,Simon Jennings,Simon Jennings +5 more
TLDR
In this article, the authors describe relationships between the environment and the size composition of phytoplankton communities, using a collation of empirical measurements of size composition from sites that include polar, tropical and upwelling environments.Abstract:
The size composition of primary producers has a potential influence on the length of marine food chains and carbon sinking rates, thus on the proportion of primary production (PP) that is removed from the upper layers and available to higher trophic levels. While total rates of PP are widely reported, it is also necessary to account for the size composition of primary producers when developing food web models that predict consumer biomass and production. Empirical measurement of size composition over large space and time scales is not feasible, so one approach is to predict size composition from environmental variables that are measured and reported on relevant scales. Here, we describe relationships between the environment and the size composition of phytoplankton communities, using a collation of empirical measurements of size composition from sites that include polar, tropical and upwelling environments. The size composition of the phytoplankton communities can be predicted using two remotely sensed variables, chlorophyll-a concentration and sea surface temperature. Applying such relationships in combination allows prediction of the slope and location of phytoplankton size spectra and estimation of the percentage of different sized phytoplankton groups in communities.read more
Citations
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Can marine fisheries and aquaculture meet fish demand from a growing human population in a changing climate
Gorka Merino,Manuel Barange,Julia L. Blanchard,James Harle,Robert Holmes,Icarus Allen,Edward H. Allison,Marie Caroline Badjeck,Nicholas K. Dulvy,Jason Holt,Simon Jennings,Simon Jennings,Christian Mullon,Lynda D. Rodwell +13 more
TL;DR: In this article, the authors investigated the feasibility of sustaining current and increased per capita fish consumption rates in 2050 and concluded that meeting current and larger consumption rates is feasible, despite a growing population and the impacts of climate change on potential fisheries production, but only if fish resources are managed sustainably and the animal feeds industry reduces its reliance on wild fish.
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Overview of Integrative Assessment of Marine Systems: The Ecosystem Approach in Practice
Ángel Borja,Michael Elliott,Jesper H. Andersen,Torsten Berg,Jacob Carstensen,Benjamin S. Halpern,Benjamin S. Halpern,Anna-Stiina Heiskanen,Samuli Korpinen,Julia S. Stewart Lowndes,Georg Martin,Naiara Rodríguez-Ezpeleta +11 more
TL;DR: Five existing methods that address the needs of monitoring and assessment of marine ecosystems are reviewed, highlighting their main characteristics and analyzing their commonalities and differences.
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Does warming enhance the effect of microzooplankton grazing on marine phytoplankton in the ocean
TL;DR: Warming may enhance phytoplankton losses to microzooplankton herbivory in eutrophic but not in oligotrophic waters, and the GAM analysis provides important insights into underlying system relationships and reasons why community-level responses in natural systems may depart from theory.
Journal ArticleDOI
Modelling the effects of climate change on the distribution and production of marine fishes: accounting for trophic interactions in a dynamic bioclimate envelope model.
Jose A. Fernandes,William W. L. Cheung,Simon Jennings,Simon Jennings,Momme Butenschön,Lee de Mora,Thomas L. Frölicher,Manuel Barange,Alastair Grant +8 more
TL;DR: Predicted latitudinal shifts are, on average, reduced by 20% when species interactions are incorporated, compared to DBEM predictions, with pelagic species showing the greatest reductions.
Journal ArticleDOI
Locations of marine animals revealed by carbon isotopes
Kirsteen M. MacKenzie,Martin R. Palmer,A. Moore,Anton T. Ibbotson,William R. C. Beaumont,David Poulter,Clive N. Trueman +6 more
TL;DR: It is shown that marine location can be inferred from animal tissues, and carbon isotope ratios can be used to identify the location of open ocean feeding grounds for any pelagic animals for which tissue archives and matching records of sea surface temperature are available.
References
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