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Título
Disentangling diatom species complexes: does morphometry suffice?
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
PeerJ – the Journal of Life & Environmental Sciences
Cita Bibliográfica
Blanco, S., Borrego-Ramos, M., & Olenici, A. (2017). Disentangling diatom species complexes: does morphometry suffice? PeerJ– the Journal of Life & Environmental Sciences, 2017(5) Article e4159. https://doi.org/10.7717/PEERJ.4159
Editorial
PeerJ
Fecha
2017
Resumen
[EN] Accurate taxonomic resolution in light microscopy analyses of microalgae is essential to achieve high quality, comparable results in both floristic analyses and biomonitoring studies. A number of closely related diatom taxa have been detected to date co-occurring within benthic diatom assemblages, sharing many morphological, morphometrical and ecological characteristics. In this contribution, we analysed the hypothesis that, where a large sample size (number of individuals) is available, common morphometrical parameters (valve length, width and stria density) are sufficient to achieve a correct identification to the species level. We focused on some common diatom taxa belonging to the genus Gomphonema. More than 400 valves and frustules were photographed in valve view and measured using Fiji software. Several statistical tools (mixture and discriminant analysis, k-means clustering, classification trees, etc.) were explored to test whether mere morphometry, independently of other valve features, leads to correct identifications, when compared to identifications made by experts. In view of the results obtained, morphometry-based determination in diatom taxonomy is discouraged
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Palabras clave
Peer review
SI
ID proyecto
- Info:eu-repo/grantAgreement/MINECO/Programa Estatal de I+D+I Orientada a los Retos de la Sociedad/CTM2014-51907-C2-R/ES/Desarrollo de métodos automáticos de identificación de diatomeas en el análisis cuantitativo y monitorización de la calidad de agua/AQUALITAS
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