1. Seasonal plankton dynamics along a cross-shelf gradient
- Author
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Dag Ø. Hjermann, Marcos Llope, Nils Christian Stenseth, Lorenzo Ciannelli, Ricardo Anadón, Espen Bagøien, Geir Ottersen, and Kung-Sik Chan
- Subjects
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 ,Food Chain ,Oceans and Seas ,Photoperiod ,Population Dynamics ,Centro Oceanográfico de Cádiz ,Models, Biological ,Zooplankton ,General Biochemistry, Genetics and Molecular Biology ,Abundance (ecology) ,Phytoplankton ,Animals ,VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 ,økologi ,Computer Simulation ,Ecosystem ,Biomass ,Medio Marino ,General Environmental Science ,Biomass (ecology) ,General Immunology and Microbiology ,Ecology ,fungi ,Temperature ,General Medicine ,Plankton ,Oceanography ,Environmental science ,Upwelling ,Seasons ,ecology ,General Agricultural and Biological Sciences ,Bay ,Research Article - Abstract
Much interest has recently been devoted to reconstructing the dynamic structure of ecological systems on the basis of time-series data. Using 10 years of monthly data on phyto- and zooplankton abundance from the Bay of Biscay (coastal to shelf-break sites), we demonstrate that the interaction between these two plankton components is approximately linear, whereas the effects of environmental factors (nutrients, temperature, upwelling and photoperiod) on these two plankton population growth rates are nonlinear. With the inclusion of the environmental factors, the main observed seasonal and inter-annual dynamic patterns within the studied plankton assemblage also indicate the prevalence of bottom-up regulatory control.
- Published
- 2006
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