Global variation in freshwater physico-chemistry and its influence on chemical toxicity in aquatic wildlife

Autor(es)

Pinheiro, Joao Paulo S. ^[1] ; Windsor, Fredric M. ^[2] ; Wilson, Rod W. ^[3] ; Tyler, Charles R. ^[3]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Biociencias, Matao St, 14 Lane, 101, Room 220, BR-05508090 Sao Paulo - Brazil

^[2] Newcastle Univ, Sch Nat & Environm Sci, Newcastle Upon Tyne NE1 7RU, Tyne & Wear - England

^[3] Univ Exeter, Biosci, Exeter EX4 4QD, Devon - England

• Tipo de documento: Artigo Científico
• Fonte: BIOLOGICAL REVIEWS; v. 96, n. 4, p. 1528-1546, AUG 2021.
• Citações Web of Science: 0

Resumo

Chemical pollution is one of the major threats to global freshwater biodiversity and will be exacerbated through changes in temperature and rainfall patterns, acid-base chemistry, and reduced freshwater availability due to climate change. In this review we show how physico-chemical features of natural fresh waters, including pH, temperature, oxygen, carbon dioxide, divalent cations, anions, carbonate alkalinity, salinity and dissolved organic matter, can affect the environmental risk to aquatic wildlife of pollutant chemicals. We evidence how these features of freshwater physico-chemistry directly and/or indirectly affect the solubility, speciation, bioavailability and uptake of chemicals {[}including via alterations in the trans-epithelial electric potential (TEP) across the gills or skin] as well as the internal physiology/biochemistry of the organisms, and hence ultimately toxicity. We also show how toxicity can vary with species and ontogeny. We use a new database of global freshwater chemistry (GLORICH) to demonstrate the huge variability (often >1000-fold) for these physico-chemical variables in natural fresh waters, and hence their importance to ecotoxicology. We emphasise that a better understanding of chemical toxicity and more accurate environmental risk assessment requires greater consideration of the natural water physico-chemistry in which the organisms we seek to protect live. (AU)

• Processo FAPESP: 14/16320-7 - Impactos das mudanças climáticas e ambientais sobre a fauna: uma abordagem integrativa
• Beneficiário: Carlos Arturo Navas Iannini
• Modalidade de apoio: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático
• Processo FAPESP: 16/08770-8 - Avaliação da qualidade seminal, mutagênese e genotoxicidade em Astyanax altiparanae (Teleostei, Characidae) expostos ao alumínio em diferentes temperaturas de água
• Beneficiário: João Paulo Silva Pinheiro
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 18/10790-2 - Variação na biodisponibilidade e nas respostas biológicas às drogas em peixes
• Beneficiário: João Paulo Silva Pinheiro
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado