Beaufort Beluga Mercury Bioaccumulation Model Parameters and Outputs

Mercury can harm marine ecosystem health in the Arctic. Changes in the climate and human activities may have affected how mercury moves in the environment and accumulates in Arctic animals in many different ways. As a result, observed changes in mercury in important Arctic animals, such as beluga whales, are still difficult to explain. The long-term goals of this project are to use models to: (1) better understand how climate, ecological, and human influences have interacted to drive historical trends in Beaufort beluga mercury levels; (2) explore how mercury levels may respond to future climate change and mercury emissions. Future results from this study are intended to provide the Inuvialuit Game Council (IGC) and Inuvialuit Settlement Region (ISR) Hunters and Trappers Committees with information (presentations and plain-language reports) and tools (a model) to help anticipate future mercury concentrations in beluga.

As a first step to achieve these goals, in 2019-2020, we began developing a computer model of mercury flows in the Beaufort beluga food web. This model builds on an existing model of the Beaufort beluga ecosystem, and draws from data and knowledge from a long-term community-based beluga monitoring program in the ISR. This dataset includes key model parameters and outputs for 36 functional groups in the food web (initial mercury concentration, direct absorption rate, excretion rate, metabolic decay rate).

Metadata Access
Creator Giang, Amanda; Li, Miling; Hoover, Carie; Loseto, Lisa
Publisher Canadian Cryospheric Information Network
Contributor Polar Data Catalogue
Publication Year 2020
Rights Research programs, CCIN, or ArcticNet take no liability for the use or transmission of this data
OpenAccess true
Contact amanda.giang(at); pdc(at)
Language English
Format Computer file
Discipline Environmental Research
Spatial Coverage (-138.000W, 68.000S, -122.000E, 70.200N)
Temporal Coverage Begin 1970-01-01T00:00:00Z
Temporal Coverage End 2015-12-31T00:00:00Z