Metal and proton toxicity to lake zooplankton: A chemical speciation based modelling approach

Sammanfattning

The WHAM-F-_TOX model quantifies the combined toxic effects of protons and metal cations towards aquatic organisms through the toxicity function (F-_TOX), 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). (C) 2013 Elsevier Ltd. All rights reserved.

Nyckelord

Chemical speciation; Bioavailability; Recovery; Crustacean zooplankton; Lakes

Publicerad i

Environmental Pollution
2014, volym: 186, sidor: 115-125
Utgivare: ELSEVIER SCI LTD

SLU författare

• Löfgren, Stefan

  • Institutionen för vatten och miljö, Sveriges lantbruksuniversitet
    

• Persson, Gunnar

  • Institutionen för vatten och miljö, Sveriges lantbruksuniversitet
    

Associerade SLU-program

Använder FOMA data
Biologisk mångfald
Försurning
Sjöar och vattendrag
Giftfri miljö

Globala målen (SDG)

SDG6 Rent vatten och sanitet för alla
SDG14 Hav och marina resurser

UKÄ forskningsämne

Miljövetenskap
Ekologi
Geokemi

Publikationens identifierare

• DOI: https://doi.org/10.1016/j.envpol.2013.11.012

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/53743