The University of Southampton
University of Southampton Institutional Repository

Modelling of autumn plankton bloom dynamics

Record type: Article

A simple system of parametrically forced ordinary differential equations is used to model autumn phytoplankton blooms in temperate oceans by a mechanism involving deepening of the upper mixed layer. Blooms are triggered provided the increase in nutrients in the mixed layer is rapid within the first few days of deepening and provided light-limited phytoplankton growth rate is relatively high. Blooms exist as transient trajectories between quasi-equilibrium states, rather than as bifurcations of steady states; therefore very gradual deepening cannot trigger blooms. Very rapid deepening also prevents blooms due to the deleterious effect on phytoplankton growth rate. The mechanisms identified by this simple model are vindicated by considering alternative grazing and deepening regimes and by comparison with a more ecologically complex model (Fasham, 1993, in The Global Carbon Cycle, Springer-Verlag). Modelled estimates of primary productivity from both the simple model and the complex model parameterized for Ocean Weather Station ‘India’ are around 0.5 g C m–2 day–1 during the autumn bloom, therefore comprising a significant component of annual production in temperate areas.

Full text not available from this repository.

Citation

Findlay, H.S., Yool, A., Nodale, M. and Pitchford, J.W. (2006) Modelling of autumn plankton bloom dynamics Journal of Plankton Research, 28, (2), pp. 209-220.

More information

Published date: 2006
Organisations: Marine Biogeochemistry

Identifiers

Local EPrints ID: 24568
URI: http://eprints.soton.ac.uk/id/eprint/24568
ISSN: 0142-7873
PURE UUID: 7c70ef01-115a-47b9-a0ee-93126c81b154

Catalogue record

Date deposited: 29 Mar 2006
Last modified: 17 Jul 2017 16:13

Export record

Contributors

Author: H.S. Findlay
Author: A. Yool
Author: M. Nodale
Author: J.W. Pitchford

University divisions


Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×