After General Electric dumped polychlorinated biphenyls (PCBs) in the Hudson River from 1947 through 1976, tomcod living in the river were found to have evolved an increased resistance to the compound's toxic effects.
•
The season of the tomcod varies by location -- one known example is the Sainte-Anne River in Quebec, where its season is from late-December to mid-February.
•
The town of Sainte-Anne-de-la-Pérade is notable for its fishing village built on the frozen waters of the Ste-Anne, playing host to the scores of fishermen visiting the town to fish for tomcod.