Researchers found that lookdown fish camouflage themselves through a complex manipulation of polarized light after it strikes the fish skin. This kind of camouflage outperforms by up to 80 percent the “mirror” strategy that was previously thought to be state-of-the-art in fish camouflage. Credit: By Jeff Kubina. Creative Commons. Some rights reserved.
A new study to be published in the Proceedings of the National Academy of Sciences of the United States (PNAS) from researchers at the University of Texas, Austin and the University of Portland reveals that lookdown fish camouflage themselves by manipulating the polarized light that reflects off of their skin. Earlier studies also published in the PNAS examining fish camouflage had demonstrated through spectral imaging that some fish, like the cuttlefish, camouflage in part by color matching and pattern matching the eyes of predatory fish. Both of these studies reveal a good deal about prey fish camouflage, revealing useful information for anglers thinking about fish optics and bait.
Camoulflage, fish, Fishing, Optics, Research
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