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Título
Fragilaria rinoi sp. nov. (Fragilariales, Fragilariophyceae) from periphytic river samples in Central Portugal
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
European Journal of Taxonomy
Número de la revista
248
Datos de la obra
Delgado, C., Novais, M. H., Blanco, S., & Almeida, S. F. P. (2016). Fragilaria rinoi sp. nov. (Fragilariales, Fragilariophyceae) from periphytic river samples in central Portugal. European Journal of Taxonomy, (248). https://doi.org/10.5852/EJT.2016.248
Editor
EJT consortium
Fecha
2016
Resumo
[EN] A new benthic freshwater diatom, Fragilaria rinoi Almeida & C.Delgado sp. nov., is described
from river periphyton samples in Portugal. Fragilaria rinoi sp. nov. is illustrated and discussed based on
populations collected from the Vouga, Mondego and Lis river basins in central Portugal and compared
with the type material of Fragilaria vaucheriae (Kütz.) J.B.Petersen. The morphological features of
the new diatom species are documented through light and scanning electron micrographs, including a
comparative analysis with related species of the genus (F. candidagilae Almeida, C.Delgado, Novais &
S.Blanco, F. intermedia Grunow in Van Heurck, F. neointermedia Tuji & D.M.Williams, F. recapitellata
Lange-Bert. & Metzeltin, F. perminuta (Grunow) Lange-Bert., F. vaucheriae and F. microvaucheriae
C.E.Wetzel & Ector). Fragilaria rinoi sp. nov. is characterized by solitary cells without spines, lanceolate
valves with slightly rostrate apices, a narrow, linear axial area, and a large, unilateral central area.
Fragilaria rinoi sp. nov. may be confused with F. microvaucheriae in terms of length, striae density
and outline, although a morphometric analysis revealed that F. rinoi sp. nov. is significantly wider.
Fragilaria rinoi sp. nov. is present in rivers with high dissolved oxygen concentrations, medium to high
conductivity, neutral to slightly alkaline pH and high mean values of nitrates and ammonium
Materia
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