Evidence item

The passage directly reports 357 lakes, four affected fish species, 6% to 21% increases, and elevated threshold exceedance risk. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 19095

Source: Mercury increases in multiple fish species following zebra mussel invasions · locator {} · excerpt hash sha256:2fb44c1bf72c687def7ff4781e4a1110492bdf70f735febb5dd623d8f7b38d7a

Exact excerpt

Using the Minnesota state fish contaminant database, researchers examined mercury concentrations from 357 lakes and six fish species ... Mercury concentrations increased in harvestable-sized fish in four of six species after zebra mussels became established ... Black crappie — mercury increased 21%; Bluegill — 19%; Northern pike — 9%; Walleye — 6%. ... Walleye, northern pike and largemouth bass were more likely to exceed a 0.22 ppm mercury threshold after zebra mussels became established.

Linked claims

Claim	Direction	Relevance	Steps	Counted
33c60fee	SUPPORT	DIRECT	0	yes

Audits

None.