Date of Creation
Spring 3-13-2025
Document Type
Dataset
Abstract
Salmon are important fish taxa for humans and animals in hemiboreal and subarctic ecosystems. Trace elements and their marine food web bioaccumulation raises biomagnification and potential human health risk concerns. Sixteen trace element concentrations and their health risk assessments were determined in seven different tissues of two Southeast Alaska salmon species (chum, Oncorhynchus keta and pink, Oncorhynchus gorbuscha). Chum tissues had overall higher trace element concentrations compared to pink, which may be attributed to a difference of diets, generally longer-lived and spending more time in the open ocean. All kidney and liver samples exceeded the tolerable daily intake for arsenic, indicating a significant risk to wildlife; while muscle tissues revealed a low risk for human consumption. The target hazard quotients for chronic toxicological risk of all tissues did not exceed the hazardous threshold, and the carcinogenic risk values for arsenic, cadmium, chromium, and lead all indicated a negligible cancer risk for humans. These results highlight the critical need for continuous trace element monitoring in salmon and the potential implications for both human and animal health.
Recommended Citation
Brohman, Miranda; Roffler, Gretchen; Giarikos, Dimitri G.; Kerstetter, David; and Hirons, Amy C., "Salmon as an ecological pathway of contaminants into Alaskan food webs" (2025). SECLER Data. 8.
https://nsuworks.nova.edu/secler_data/8
Included in
Analytical Chemistry Commons, Aquaculture and Fisheries Commons, Environmental Chemistry Commons, Environmental Health and Protection Commons, Environmental Indicators and Impact Assessment Commons, Environmental Monitoring Commons, Inorganic Chemistry Commons