State Seeks More Lake-Caught Fish Donations To Bolster New Mercury Data
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State regulators have new data on mercury levels in fish caught in New Hampshire waters – and they want more anglers to donate fish for testing.
The state Department of Environmental Services keeps an interactive map of New Hampshire’s lakes, with data about invasive species, cyanobacteria, runoff and more.
Now, that map includes mercury concentrations in the tissue of fish in each lake – especially yellow perch and largemouth bass. Biologist Kirsten Nelson says wild freshwater fish like those build up mercury from other fish they eat.