Modelling the effects of changing retention time on abundance and composition of phytoplankton species in a small lake

Jones, I. D.; Elliott, J. A.. 2007 Modelling the effects of changing retention time on abundance and composition of phytoplankton species in a small lake. Freshwater Biology, 52 (6). 988-997. https://doi.org/10.1111/j.1365-2427.2007.01746.x

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Abstract/Summary

1. The phytoplankton community model, PROTECH, was used to model the algal response to changing annual mean retention time in a small lake. 2. Simulations of short retention time with a fixed nutrient load resulted in a reduced chlorophyll concentration. A similar relationship was observed when the simulations were repeated but with inflowing nutrients increased in proportion to river discharge. 3. Longer retention time caused the spring bloom to start earlier and the autumn bloom to persist longer. 4. Changes in discharge of the inflowing river also caused a change in the thermal structure of the lake. This change in thermal structure, in turn, influenced the magnitude and composition of the phytoplankton population, particularly those in the CS-functional group, such as Aphanizomenon.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1111/j.1365-2427.2007.01746.x
Programmes:	CEH Programmes pre-2009 publications > Water
UKCEH and CEH Sections/Science Areas:	Parr
ISSN:	0046-5070
Additional Keywords:	climate, lakes, phytoplankton, retention time, vollenweider model
NORA Subject Terms:	Ecology and Environment
Date made live:	12 Dec 2007 09:42 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/1575

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