A generically parameterized model of Lake eutrophication: The impact of Stoichiometric ratios and constraints on the abundance of natural phytoplankton communities (GPLake-S)

Manqi Chang; Donald L. DeAngelis; Jan H. Janse; Annette B.G. Janssen; Tineke A. Troost; Dianneke van Wijk; Wolf M. Mooij; Sven Teurlincx

doi:10.1016/j.ecolmodel.2022.110142

A generically parameterized model of Lake eutrophication: The impact of Stoichiometric ratios and constraints on the abundance of natural phytoplankton communities (GPLake-S)

Ecological Modelling

By: Manqi Chang, Donald L. DeAngelis, Jan H. Janse, Annette B.G. Janssen, Tineke A. Troost, Dianneke van Wijk, Wolf M. Mooij, and Sven Teurlincx

https://doi.org/10.1016/j.ecolmodel.2022.110142

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Abstract

Water quality improvement to avoid excessive phytoplankton blooms often requires eutrophication management where both phosphorus (P) and nitrogen (N) play a role. While empirical eutrophication studies and ecological resource competition theory both provide insight into phytoplankton abundance in response to nutrient loading, they are not seamlessly linked in the current state of eutrophication research. We argue that understanding species competition for multiple nutrients and light in natural phytoplankton communities is key to assessing phytoplankton abundance under changing nutrient supply. Here we present GPLake-S, a mechanistic model rooted in ecological resource competition theory, which has only eight parameters and can predict chlorophyll-a to nutrient relationships for phytoplankton communities under N, P, N+P colimitation and light limitation. GPLake-S offers a simple mechanistic tool to make first estimates of chlorophyll-a levels and nutrient thresholds for generic lake properties, accounting for variation in N:P ratio preferences of phytoplankton species. This makes the model supportive of water management and policy.

Additional publication details
Publication type	Article
Publication Subtype	Journal Article
Title	A generically parameterized model of Lake eutrophication: The impact of Stoichiometric ratios and constraints on the abundance of natural phytoplankton communities (GPLake-S)
Series title	Ecological Modelling
DOI	10.1016/j.ecolmodel.2022.110142
Volume	473
Year Published	2022
Language	English
Publisher	Elsevier
Contributing office(s)	Wetland and Aquatic Research Center
Description	110142, 11 p.
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