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Scientific Publication Citing Dragonfly

New insights into patterns and rates of tooth replacement in serrasalmid and characid fishes, with implications for the subsistence fishery of Peru's remote ribereños villages

Courtney E. Stuart (1,2), Stephanie J. Green (2), Oksana Vernygora (2), Aaron R. H. LeBlanc (2), Mary H. Bertschi(1), Maria Brown (1)
Journal of Fish Biology, November 2020. DOI: 10.1111/jfb.14634


Amazon basin, Characidae, fisheries ecology, microcomputed tomography, Serrasalmidae, tooth replacement


We explored patterns, rates and unexpected socio‐ecological consequences of tooth replacement in serrasalmids and characids of the Peruvian Amazon using microcomputed tomography. Of 24 specimens collected in February 2019, representing a mix of red‐bellied piranha Pygocentrus nattereri, redeye piranha Serrasalmus rhombeus, silver dollar fish Ctenobrycon hauxwellianus and mojara Astyanax abramis, six individuals possessed edentulous jaw quadrants. On average, 22.9% of fish collected per day from these species featured incomplete dentition, a value three to five times higher than anticipated based on replacement rates estimated from captive fish, differences that may be driven by ontogeny, seasonality or environmental quality.

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Dragonfly was used for 2D and 3D visualizations.

Author Affiliation

(1) Laboratory of Functional and Evolutionary Morphology, AFFISH-RC, FOCUS, University of Liège, Liège, Belgium
(2) Laboratory of Cellular and Tissular Biology, GIGA-Neurosciences, Cell Biology L3, University of Liège, Liège, Belgium

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