Estimation of global zooplankton biomass from satellite ocean colour

KH Patrik Strömberg, Timothy J Smyth, J Icarus Allen, Sophie Pitois, Todd D O'Brien

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

A changing Earth System requires knowledge on a global scale. The only way of obtaining detailed information at these scales is by using satellite remote sensing and/or modeling. In the marine environment, information on primary production (PP) is derivable from satellite data, whereas datasets of higher trophic levels are sparse. The challenge is to combine these two sources. A model relating the flow of energy from PP to zooplankton biomass, was used to address this problem. The model was parameterised with PP from the SeaWiFS satellite ocean colour record and a subset of a global dataset of zooplankton biomass. The model was then validated with the remaining zooplankton data. The model was used to: produce a map of annual global, zooplankton biomass, quantify the flow of carbon from PP to zooplankton and investigate the spatial variability of this flow. One of the more notable findings is that more energy is transferred to zooplankton when PP is low.
Original languageEnglish
Pages (from-to)18-27
Number of pages10
JournalJournal of Marine Systems
Volume78
Issue number1
Early online date15 Feb 2009
DOIs
Publication statusPublished - Aug 2009

Keywords

  • Zooplankton biomass
  • Primary production
  • Global model
  • Trophic efficiency
  • Satellite data

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