I'm a professional geologist/senior project manager out of Buffalo and work with USACE/USEPA overseeing very large Superfund remedial activities in the Niagara Falls area, and over the last 19 years, in Northern New York on the St. Lawrence River, Grasse River, and Raquette River.
I monitor annual resident fish sampling programs which are performed to track the distribution and concentrations of PCBs in fish (full and fillet) on the St. Lawrence River; this year two Eurasian Tench were caught. Curious to hear if anyone is aware of this invasive fish and if anyone has been tracking this potential invasion.
Attached is one of the two fish caught yesterday at the New York State/St. Regis Mohawk Tribe border (just down stream of the Massena-Cornwall International Bridge).
Eurasian Tench – 39.4 cm total length, 996 g total weight
Eurasian Tench – 40.1 cm total length, 912 g total weight