Global Scale Effects of Pollution and Parasitism on Freshwater Fish Health: A Review

Global Scale Effects of Pollution and Parasitism on Freshwater Fish Health: A Review

Date

2-15-2024

Faculty Mentor

Lori Tolley-Jordan, Biology

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Submission Type

Conference Proceeding

Location

10:30-10:40am | Houston Cole Library, 11th Floor

Description

The negative effects of pollution on declines in diversity and impaired health are well described in freshwater systems worldwide. However, the interaction between anthropogenic stressors and parasites on fish health is less well studied. We conducted a survey of published literature to determine the number of studies, approaches, and the interaction between parasite infection and pollution on freshwater fish health. By using search terms including metals, pollution, freshwater, parasites, fishes, and physiology in literature search engines, we compiled a collection of scientific studies. Studies were classified into years published, location by global region, study design (field surveys, laboratory studies), pollutant type (metals, microplastics, or chemicals), and fish health response (physiology or immune). For this review, all parasite types were combined. The most widely used study approach was survey based and most focused on the combined effect of parasites and pollution on fish physiology and immune responses. More research is needed in other regions of the world and laboratory studies to test the results found in the field studies. Also, other measures of fish health are needed to understand the relationships of pollution and parasitism. Finally, as fishes are parasitized by a wide variety of organisms from bacteria to different types of worms, the negative effects of parasitism on health may not be equal across all parasites. Literature surveys such as this uncover data gaps in the science of this topic and promote continued research to fully understand the combined effects of pollution and parasitism on the health of freshwater fishes.

Keywords

student research, biology

Rights

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Disciplines

Biology

Global Scale Effects of Pollution and Parasitism on Freshwater Fish Health: A Review

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