Mercury Concentrations in Recent and Ninety-Year-Old Benthopelagic Fish

Details Mercury Concentrations in Recent and Ninety-Year-Old Benthopelagic Fish Mercury Concentrations in Recent and Ninety-Year-Old Benthopelagic Fish

Nov 1972

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1972sci...178..636b&link_type=abstract

Science, Volume 178, Issue 4061, pp. 636-639

Physics

2

Scientific paper

Several species of bottom-dwelling fish from 2500 meters with similar feeding habits had mercury concentrations that differed by an order of magnitude. Within one species there was a correlation between size and concentration with the larger individuals having mercury concentrations as high as 0.8 part per million (wet weight). The mercury content of the water in the deep-ocean habitat of these fish appears not to determine the mercury content of a particular fish; species-specific factors and size do appear to determine this concentration. The species-specific variation between the recent fish also existed between the same two species in specimens collected 90 years ago from a depth of 2000 meters and a 90-year-old specimen fit closely the size-concentration regression curve for nine recent individuals of the same species.

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