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Immunity and health of two wild marine fishes naturally exposed to anthropogenic pollution


Sueiro, MC and Awruch, C and Gilardoni, C and Demetrio, M and Palacios, MG, Immunity and health of two wild marine fishes naturally exposed to anthropogenic pollution, Science of the Total Environment, 726 Article 138303. ISSN 0048-9697 (2020) [Refereed Article]

Copyright Statement

Copyright 2020 Elsevier B.V.

DOI: doi:10.1016/j.scitotenv.2020.138303


There are increasing global concerns of the alarming pollution impacts on marine life, thus it is becoming essential to generate reliable tools to monitor and understand the effects of these impacts on aquatic organisms. We performed a field study assessing how exposure to anthropogenic pollution impacts immunological and health-state parameters and parasite infection of a wild marine fish, the Brazilian sandperch Pinguipes brasilianus. Then we compared this information to previously published data of a sympatric species, the Patagonian rockfish Sebastes oculatus inhabiting the same polluted and pristine areas. The field study revealed that exposed P. brasilianus showed chronic stress, poor immune condition and higher prevalence and abundance of acanthocephalan parasites. By comparing these former results with already published in S. oculatus, we concluded that, although both species exhibited physiological alterations associate to inhabiting sites exposed to pollution, their specific immunological and health-state responses differed. Our results demonstrate that Patagonian reef-fish assemblages inhabiting sites exposed to pollutant are being affected in their immune and heath condition, which could potentially result in higher susceptibility to disease and in turn population decline. These findings highlight the necessity of more studies incorporating interspecific comparisons to assess variation in fish susceptibility in an ecoimmunotoxicological context and get a more profound understanding of anthropogenic impacts on wildlife.

Item Details

Item Type:Refereed Article
Keywords:pollution, wild fish health, marine environment, aquatic organisms, parasite infection, immune condition
Research Division:Environmental Sciences
Research Group:Pollution and contamination
Research Field:Pollution and contamination not elsewhere classified
Objective Division:Environmental Management
Objective Group:Marine systems and management
Objective Field:Marine systems and management not elsewhere classified
UTAS Author:Awruch, C (Dr Cynthia Awruch)
ID Code:152625
Year Published:2020
Web of Science® Times Cited:5
Deposited By:Research Performance and Analysis
Deposited On:2022-08-22
Last Modified:2022-10-28

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