Special Issue "Risks to Aquatic Animal Health Conditions in Environmental Extremes: Research and Management"

A special issue of Toxics (ISSN 2305-6304). This special issue belongs to the section "Ecotoxicology".

Deadline for manuscript submissions: 28 February 2024 | Viewed by 1135

Special Issue Editors

United States Geological Survey - Wetland and Aquatic Research Center, Lafayette, LA, USA
Interests: environmental stressors; biomarker development; endocrine disruption; genetics; comparative immunology
Scientist Emeritus, California Water Science Center, Sacramento, CA, USA
Interests: endocrine disruption; environmental contaminants; fisheries biology

Special Issue Information

Dear Colleagues,

Recently, no science journal has attempted to present contemporary issues resulting from the complexities of dynamic changes in physiology and the health of fish and aquatic species in a changing climate, especially in relation to environmentally occurring chemical compounds. This Special Issue is requesting contributions whose hypotheses involve aquatic species—with an emphasis on teleost fishes—which are experiencing new and evolving physiological challenges from contaminants, as well as the effects of climate dynamics and weather events. This Special Issue will include such articles on how aquatic species are being influenced by dramatic changes in water availability and use, volume, temperature, and associated weather phenomena. The goal is to publish a series of papers authored by experts on integrated effects, at a number of relevant biological and ecological hierarchies, involving effects of contaminants and climate dynamics on aquatic species. These articles will touch on topics that include data, such as molecular and protein biomarker expressions, organismal mortalities, morphological adaptations, reproductive ecotoxicology, fish recruitment, ecosystem changes over time, as well as broad outlooks on populations and management.

Dr. Jill A. Jenkins
Steve L. Goodbred
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. Toxics is an international peer-reviewed open access monthly 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.



  • contaminants
  • climate change
  • fish physiology
  • aquatic animal health
  • aquatic ecosystems
  • environmental risks
  • ecotoxicology
  • biomarkerss
  • reproduction
  • populations
  • management
  • adaptation

Published Papers (1 paper)

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Monitoring of Mycotoxigenic Fungi in Fish Farm Water and Fumonisins in Feeds for Farmed Colossoma macropomum
Toxics 2023, 11(9), 762; https://doi.org/10.3390/toxics11090762 - 08 Sep 2023
Viewed by 694
This study aimed to evaluate the occurrence of mycotoxigenic fungi in fish farm water and mycotoxins in feeds for farmed tambaqui (Colossoma macropomum). A total of 40 samples of freshwater from fish farms and 16 samples of feed were collected and [...] Read more.
This study aimed to evaluate the occurrence of mycotoxigenic fungi in fish farm water and mycotoxins in feeds for farmed tambaqui (Colossoma macropomum). A total of 40 samples of freshwater from fish farms and 16 samples of feed were collected and analyzed for microbiology. A total of five species of free-living fungi were identified in fish farms: Aspergillus fumigatus, Penicillium citrinum, P. implicatum, Fusarium oxysporum and Alternaria alternata. These fungi species were counted in water samples at 35.14 CFU mL−1 and 24.69 CFU mL−1 in the dry seasons. In all fish farms, there was a higher abundance of fungi species in the rainy season. During visits to the fish farmers, it was possible to verify poor feed storage conditions. Concerning mutations in blood cells, in tambaqui (C. macropomum), a total of 159 anomalies were found, and in Leptodactylus petersii, 299 anomalies were found, with higher incidences in conditions above 1.0 CFU mL−1 in log10(x+1) fungi and in the rainy season. The occurrence of mycotoxicological contamination was confirmed in 81.25% of the analyzed samples. The quantified mycotoxin was Fumonisins B1 + B2 (375 to 1418 μg kg−1). Pearson’s correlation analysis showed a significant positive correlation between Fumonisins and feed samples (r = 0.83). There was also a significant positive correlation between the abundance of fungi in water and the quantification of Fumonisins (r = 0.79). Based on the results obtained, it can be concluded that free-living fungi can be used as bioindicators of water quality in fish farms. Consequently, the lack of good management practices caused microbiological contamination of the aquatic environment. Full article
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