Abstract
Gomphonema alavariense sp. nov. is a new freshwater diatom described in Portugal from phytobenthos samples in an urban pond located in Aveiro (Portugal). This new diatom is illustrated and discussed based on different samples collected in July–August 2017 from Santo António Park pond in the city centre. This taxon was compared with other Gomphonema taxa and the morphological features are documented through light and scanning electron micrographs. Gomphonema alavariense sp. nov. is characterized by showing solitary cells, rhombic-lanceolate to lanceolate valves with rounded apices, a narrow, linear axial area, and slightly asymmetrical central area. This taxon may be confused with G. affine var. rhombicum in terms of length, striae density and outline. Gomphonema alavariense sp. nov. was present in freshwater with low dissolved oxygen concentrations, high conductivity, neutral to slightly alkaline pH and high nitrate concentrations.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
