Stuart Willis

Stuart Willis

Corpus Christi, TX, USA

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Hi George! Yeah, in fact most South American cichlids have those eye spots on the tails. Other researchers have suggested that it is an adaptation to avoid fin nipping by piranhas, and pointed out that species that have dispersed into South America from Central America more recently don't have the eye-spots. And sure enough, when you catch them, they do seem to have more bites out of their fins than those species with eye-spots!
Aug 19, 2014
Why can't Amazon fishes adapt to extreme environments?
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Thanks, Oscar! Yeah, it's amazing to think that there are so many fish that live in water so acidic. It's especially cool to catch a fish out of super black water because they've been dyed by all the dissolved organic compounds.
Jul 24, 2014
Why can't Amazon fishes adapt to extreme environments?
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Acute Angling has made important contributions to my research on peacock bass. I am grateful for our continued collaboration!
Jul 24, 2014
Why can't Amazon fishes adapt to extreme environments?
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I'm excited to be connecting my research with stakeholders and anyone else interested in Amazonian science. Please post any questions or comments here and I'll respond as soon as a I can!
Jul 17, 2014
Why can't Amazon fishes adapt to extreme environments?
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