Mercury Concentrations in Largemouth Bass (Micropterus salmoides) Collected from Ash Meadows National Wildlife Refuge, Nye County, Nevada
Archives of Environmental Contamination and Toxicology
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Mercury is a known neurotoxin and contaminant of concern worldwide. Mercury may occur at elevated concentrations adjacent to industrial sources, such as coal- ﬁred power plants, or in remote environments and newly ﬁlled water bodies. Mercury tissue concentrations were determined for a sample of largemouth bass (Micropterus salmoides) from Crystal Reservoir, Ash Meadows National Wildlife Refuge, Nye County, Nevada. This investigation was triggered by (1) the presence of several conditions in soil and water that facilitate mercury bioaccumulation, (2) previous investigations that detected mercury in source springs, and (3) the presence of game ﬁsh and endangered pupﬁsh within the reservoir. Mercury concentrations were signiﬁcantly correlated with both ﬁsh mass and condition, but were lower than national human health and safety standards. It is possible that high pH and salinity inhibited methylation and subsequent bioaccumulation; however, additional studies are needed to determine causation of the low concentration in ﬁsh tissue compared with ambient conditions.
Fishes – Mercury content; Largemouth bass; Micropterus salmoides; Nevada – Ash Meadows National Wildlife Refuge
Aquaculture and Fisheries | Environmental Health and Protection | Environmental Sciences | Terrestrial and Aquatic Ecology | Toxicology
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Mercury Concentrations in Largemouth Bass (Micropterus salmoides) Collected from Ash Meadows National Wildlife Refuge, Nye County, Nevada.
Archives of Environmental Contamination and Toxicology, 60(3),