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How we found a new transmissible cancer in bullhead catfish
For more than a decade, anglers on Lake Memphremagog—which straddles the Quebec–Vermont border—have been catching brown bullhead catfish marked with distinctive black lesions.
AI Summary
Scientists from the USGS and Vermont Fish and Wildlife Department identified malignant melanoma lesions in brown bullhead catfish in 2019, but the origin of the disease remained unclear. Researchers at the University of Vermont applied whole‑genome sequencing to compare affected and unaffected fish, anticipating a genetic cause.
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