First-known freshwater contagious cancer spreading among catfish in Vermont lake
According to a study published in the journal Nature, since 2012, these catfish have shown high rates of raised black lesions, leading researchers to investigate if the lesions were cancer that could be spread among species. CANNIBALISTIC JELLYFISH ARE INVADING THE PRECIOUS LAGOONS OF VENICE WITH NO WAY OF REMOVING THEM Lake Memphremagog is located in both Vermont and Quebec, Canada, and is a glacial lake. A study determined these raised black lesions to be malignant melanomas and observed these lesions in 23 to 37% of brown bullheads sampled between 2014 and 2017.
- ▪According to a study published in the journal Nature, since 2012, these catfish have shown high rates of raised black lesions, leading researchers to investigate if the lesions were cancer that could be spread among species.
- ▪CANNIBALISTIC JELLYFISH ARE INVADING THE PRECIOUS LAGOONS OF VENICE WITH NO WAY OF REMOVING THEM Lake Memphremagog is located in both Vermont and Quebec, Canada, and is a glacial lake.
- ▪A study determined these raised black lesions to be malignant melanomas and observed these lesions in 23 to 37% of brown bullheads sampled between 2014 and 2017.
2 outlets in our directory ran this story, first to last over 13 hours. All of the coverage we found sits in one bucket: centre. That one-sidedness is itself worth noticing.
- ▪ Deep in a Vermont Lake, a Contagious Cancer Is Spreading — Hacker News (Newest)
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First-known freshwater contagious cancer spreading among catfish in Vermont lake By Hayley Vawter FOX Weather Cancer Published July 24, 2026 8:09 AM MST Share Copy Link Email Facebook Twitter LinkedIn Reddit Published July 24, 2026 8:09 AM MST article Brown Bullhead is a species of catfish, here caught on a link of sausage in a freshwater pond. (Judy Darby / Getty Images) The first-ever transmissible cancer to spread among fish in a freshwater setting has been discovered among brown bullhead catfish in Lake Memphremagog. According to a study published in the journal Nature, since 2012, these catfish have shown high rates of raised black lesions, leading researchers to investigate if the lesions were cancer that could be spread among species.
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