RT info:eu-repo/semantics/article
T1 Disentangling diatom species complexes: does morphometry suffice?
A1 Blanco Lanza, Saúl
A1 Borrego Ramos, María
A1 Olenici, Adriana
A2 Ecologia
K1 Biología
K1 Ecología. Medio ambiente
K1 Taxonomy
K1 Biometry
K1 Automated identification
K1 Classification
K1 Multivariate statistics
K1 2417.07 Algología (Ficología)
K1 2417.20 Taxonomía Vegetal
AB [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
PB PeerJ
LK https://hdl.handle.net/10612/19274
UL https://hdl.handle.net/10612/19274
NO 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
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 15-may-2024