ArticleToxics2025
Water-Column Zone Impacts Non-Essential Heavy Metal Accumulation in Fish Occupying Different Zones.
Article in Toxics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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4 authors.
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Abstract
The Gulf of Maine and Bay of Fundy have documented increases in heavy metals with specific properties, resulting in differing concentrations throughout the water column. Whether this impacts metal accumulation in fish that occupy different zones of the water column is unknown; as such, this was the focus of this work. Commercially harvested fish spanning the epipelagic, mesopelagic, and demersal zones of the water column had weight for length (LWR) recorded and biopsies taken. Demersal fish had the highest levels of arsenic and nickel, whereas fish in the epipelagic and demersal zones showed the highest levels of cadmium, lead, mercury and thallium. Compared to historic data, LWR was reduced in one epipelagic species (15%) and two demersal species (24%, 25%). Mesopelagic species showed increased LWR (23%) concurrent with overall lowest metal exposure. These findings demonstrate that fish accumulate non-essential metals at levels dependent on location in the water column, impacting their growth.
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