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Ecotoxicity of Pollutants on Aquatic Species
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Ecotoxicity of Pollutants on Aquatic Species

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water and One Health".

Deadline for manuscript submissions: closed (31 July 2024) | Viewed by 1736

Special Issue Editors

Prof. Dr. Alberto Teodorico Correia

E-Mail Website
Guest Editor
1. Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
2. Departamento de Biologia e Ambiente (DeBA), Escola de Ciências da Vida e do Ambiente (ECVA), Universidade de Trás-os-Montes e Alto Douro (UTAD), Quinta de Prados, 5001-801 Vila Real, Portugal
3. Departamento de Produção Aquática (DPA), Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto (UP), Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
Interests: aquatic ecology and ecotoxicology; fish and fisheries; biomarkers
Dr. Bruno Nunes

E-Mail Website
Guest Editor
Biology Department, CESAM & Dbio University of Aveiro, Aveiro, Portugal
Interests: ecotoxicology; biomarkers; aquatic environment; pharmaceutical drugs

Special Issue Information

Dear Colleagues,

We are pleased to announce a special open access volume dedicated to the ecotoxicological effects of pollutants on aquatic organisms in Water from MDPI. Freshwater, brackish and marine compartments ecosystems have been the sink of many types of contaminants released from natural or anthropic sources, which even in vestigial concentrations can cause deleterious effects on the diverse aquatic biota. These effects are regularly reported worldwide by researchers and can occur at different degrees, namely at the molecular, cellular, tissue, biochemical, individual, population and community levels, with severe impacts on environmental and human health. In this sense all articles or review papers are welcome to be considered for this Special Issue, regardless of the trophic level studied, the approach used and ecological relevance of the measured effects. Cutting-edge, original manuscripts focusing on the effects of climate change on the properties, behaviour and bioavailability of the diverse environmental stressors, namely the emergent ones (e.g., microplastics, pharmaceuticals, nanoparticles and others) are also highly appreciated. We are looking forward to receiving your original manuscripts for this Special Issue.

Prof. Dr. Alberto Teodorico Correia
Dr. Bruno Nunes
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • xenobiotics
  • aquatic organisms
  • ecotoxicology

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Published Papers (1 paper)

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Review

38 pages, 16780 KiB  
Review
An Evaluation of Metal Binding Constants to Cell Surface Receptors in Freshwater Organisms, and Their Application in Biotic Ligand Models to Predict Metal Toxicity
by Paul L. Brown and Scott J. Markich
Water 2024, 16(20), 2999; https://doi.org/10.3390/w16202999 - 21 Oct 2024
Viewed by 1204
Abstract
Biotic ligand models (BLMs) predict the toxicity of metals in aquatic environments by accounting for metal interactions with cell surface receptors (biotic ligands) in organisms, including water chemistry (metal speciation) and competing cations. Metal binding constants (log KMBL values), which indicate the [...] Read more.
Biotic ligand models (BLMs) predict the toxicity of metals in aquatic environments by accounting for metal interactions with cell surface receptors (biotic ligands) in organisms, including water chemistry (metal speciation) and competing cations. Metal binding constants (log KMBL values), which indicate the affinity of metals for cell surface receptors, are fundamental to BLMs, but have only been reported for a few commonly investigated metals and freshwater species. This review evaluated literature toxicity and uptake data for seven key metals (cadmium (Cd), cobalt (Co), copper (Cu), nickel (Ni), lead (Pb), uranium (U), and zinc (Zn)) and four key competing cations (protons (H), calcium (Ca), magnesium (Mg), and sodium (Na)), to derive average metal binding constants for freshwater organisms/taxa. These constants will improve current BLMs for Cd, Cu, Ni, Pb, and Zn, and aid in developing new BLMs for Co and U. The derived metal binding constants accurately predicted metal toxicity for a wide range of freshwater organisms (75–88% of data were within a factor of two and 88–98% of data were within a factor of three of the ideal 1:1 agreement line), when considering metal speciation, competing cations and the fraction of cell receptors ((fC)M50%) occupied by the metal at the median (50%) effect concentration (EC50). For many organisms, toxicity occurs when 50% of cell surface receptors are occupied by the metal, though this threshold can vary. Some organisms exhibit toxicity with less than 50% receptor occupancy, while others with protective mechanisms show reduced toxicity, even with similar log KMBL values. For Cu, U, and Pb, the toxic effect of the metal hydroxide (as MOH+) must be considered in addition to the free metal ion (M2+), as these metals hydrolyse in circumneutral freshwaters (pH 5.5 to 8.5), contributing to toxicity. Full article
(This article belongs to the Special Issue Ecotoxicity of Pollutants on Aquatic Species)
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