TY - JOUR
T1 - Metal and proton toxicity to lake zooplankton: A chemical speciation based modelling approach
AU - Stockdale, Anthony
AU - Tipping, Edward
AU - Lofts, Stephen
AU - Fott, Jan
AU - Garmo, Øyvind A.
AU - Hruska, Jakub
AU - Keller, Bill
AU - Löfgren, Stefan
AU - Maberly, Stephen C.
AU - Majer, Vladimir
AU - Nierzwicki-Bauer, Sandra A.
AU - Persson, Gunnar
AU - Schartau, Ann Kristin
AU - Thackeray, Stephen J.
AU - Valois, Amanda
AU - Vrba, Jaroslav
AU - Walseng, Bjørn
AU - Yan, Norman
PY - 2014/3
Y1 - 2014/3
N2 - The WHAM-FTOX model quantifies the combined toxic effects of protons and metal cations towards aquatic organisms through the toxicity function (FTOX), a linear combination of the products of organism-bound cation and a toxic potency coefficient for each cation. We describe the application of the model to predict an observable ecological field variable, species richness of pelagic lake crustacean zooplankton, studied with respect to either acidification or the impacts of metals from smelters. The fitted results give toxic potencies increasing in the order H+ <Al <Cu <Zn <Ni. In general, observed species richness is lower than predicted, but in some instances agreement is close, and is rarely higher than predictions. The model predicts recovery in agreement with observations for three regions, namely Sudbury (Canada), Bohemian Forest (Czech Republic) and a subset of lakes across Norway, but fails to predict observed recovery from acidification in Adirondack lakes (USA). © 2013 Elsevier Ltd. All rights reserved.
AB - The WHAM-FTOX model quantifies the combined toxic effects of protons and metal cations towards aquatic organisms through the toxicity function (FTOX), a linear combination of the products of organism-bound cation and a toxic potency coefficient for each cation. We describe the application of the model to predict an observable ecological field variable, species richness of pelagic lake crustacean zooplankton, studied with respect to either acidification or the impacts of metals from smelters. The fitted results give toxic potencies increasing in the order H+ <Al <Cu <Zn <Ni. In general, observed species richness is lower than predicted, but in some instances agreement is close, and is rarely higher than predictions. The model predicts recovery in agreement with observations for three regions, namely Sudbury (Canada), Bohemian Forest (Czech Republic) and a subset of lakes across Norway, but fails to predict observed recovery from acidification in Adirondack lakes (USA). © 2013 Elsevier Ltd. All rights reserved.
KW - Bioavailability
KW - Chemical speciation
KW - Crustacean zooplankton
KW - Lakes
KW - Recovery
U2 - 10.1016/j.envpol.2013.11.012
DO - 10.1016/j.envpol.2013.11.012
M3 - Article
SN - 0269-7491
VL - 186
SP - 115
EP - 125
JO - Environmental Pollution
JF - Environmental Pollution
ER -