Effects of incorporating age-specific traits of zooplankton into a marine ecosystem model

Tatsuro Tanioka, Katsumi Matsumoto

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Morphological, physiological, behavioral, and life-history traits of zooplankton are vital when assessing their roles in marine ecosystem. A recent study has shown that certain traits of marine copepod change with life stage, where fast growing young nauplii have low N:P ratio, selecting for P rich-food and excreting at high N:P; while older, slow growing copepodites are characterized by higher N:P, selecting for N-rich food and excreting at low N:P. We developed a simple model for incorporating these age-specific traits within the European Regional Seas Ecosystem Model framework to test the importance of these traits in the marine ecosystem. Our results suggest that copepod's community growth is limited by different factors in different life stages: nauplii population is limited by prey's food quality; copepodites population is limited by food quality as well as aging-related reduction in assimilation rate. We also show that age-specific traits of zooplankton have impacts on nutrient cycling especially on the elemental stoichiometry of large particulate organic matter.

Original languageEnglish (US)
Pages (from-to)257-264
Number of pages8
JournalEcological Modelling
Volume368
DOIs
StatePublished - Jan 24 2018

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food quality
marine ecosystem
zooplankton
food
stoichiometry
particulate organic matter
nutrient cycling
life history trait
ecosystem
effect
sea
young
test
rate
assimilation

Keywords

  • Ecological stoichiometry
  • Ecosystem model
  • Food quality
  • Ocean biogeochemistry
  • Zooplankton

Cite this

Effects of incorporating age-specific traits of zooplankton into a marine ecosystem model. / Tanioka, Tatsuro; Matsumoto, Katsumi.

In: Ecological Modelling, Vol. 368, 24.01.2018, p. 257-264.

Research output: Contribution to journalArticle

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