Hyperspectral data as a biodiversity screening tool can differentiate among diverse Neotropical fishes
Autor: | M. A. Kolmann, J. P. Arroyo-Mora, Oliver Lucanus, Dylan K. Wainwright, Marcelo C. Andrade, Margaret Kalacska, Loise Araújo de Sousa |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
0106 biological sciences
Science Biodiversity Biology 010603 evolutionary biology 01 natural sciences DNA barcoding Article 03 medical and health sciences Animals DNA Barcoding Taxonomic 14. Life underwater Clade 030304 developmental biology 0303 health sciences Multidisciplinary Spectral signature Pigmentation Hyperspectral imaging Hyperspectral Imaging Interspecific competition South America biology.organism_classification Serrasalmidae Phenotype Evolutionary biology Medicine Characiformes Landscape ecology Ichthyology |
Zdroj: | Scientific Reports, Vol 11, Iss 1, Pp 1-15 (2021) Scientific Reports |
ISSN: | 2045-2322 |
Popis: | Hyperspectral data encode information from electromagnetic radiation (i.e., color) of any object in the form of a spectral signature; these data can then be used to distinguish among materials or even map whole landscapes. Although hyperspectral data have been mostly used to study landscape ecology, floral diversity and many other applications in the natural sciences, we propose that spectral signatures can be used for rapid assessment of faunal biodiversity, akin to DNA barcoding and metabarcoding. We demonstrate that spectral signatures of individual, live fish specimens can accurately capture species and clade-level differences in fish coloration, specifically among piranhas and pacus (Family Serrasalmidae), fishes with a long history of taxonomic confusion. We analyzed 47 serrasalmid species and could distinguish spectra among different species and clades, with the method sensitive enough to document changes in fish coloration over ontogeny. Herbivorous pacu spectra were more like one another than they were to piranhas; however, our method also documented interspecific variation in pacus that corresponds to cryptic lineages. While spectra do not serve as an alternative to the collection of curated specimens, hyperspectral data of fishes in the field should help clarify which specimens might be unique or undescribed, complementing existing molecular and morphological techniques. |
Databáze: | OpenAIRE |
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