Mitic Kopanja, Danijela

Preferred name
Mitic Kopanja, Danijela
Official Name
Mitic Kopanja, Danijela
Translated Name
Mitić-Kopanja, Danijela
Alternative Name
Mitic Kopanja
Main Affiliation
Web Site
Email
kopanja@pmf.ukim.mk
mitickopanja@yahoo.com
Scopus Author ID
56245030700
Researcher ID
AAK-2975-2021

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    Item type:Publication,
    Cymbella biseriata sp. nov.—a unique living species of Cymbella Agardh (Bacillariophyceae) with biseriate striae
    (Magnolia Press, 2022-09-06)
    VIDESKA, ANASTASIJA
    ;
    ZAOVA, DUŠICA
    ;
    NAUMOVSKA, HRISTINA
    ;
    KOCHOSKA, HRISTINA
    ;
    <jats:p>Alpine ponds are known biodiversity hot-spots and refugia for many rare and endangered species. They are also considered to be vulnerable habitats in terms of acidification, eutrophication, modification and climatic changes. Recently, a detailed study of diatoms in these habitats in North Macedonia has been started to evaluate their status and threats. During these studies, specimens of a species of Cymbella that lacked apical pore fields and had a small valve size were recorded. Scanning electron microscope observations revealed biseriate striae composed of small, slit-like to tilde-like areolae, a character so far not observed in any living representatives of the genus Cymbella. Herein, these specimens are assigned to the new species Cymbella biseriata sp. nov. based on detailed observations with light and scanning electron microscope. Comparison with similar taxa from the C. helvetica species complex and fossil species with biseriate striae is provided. </jats:p>
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    Item type:Publication,
    NEW AND INTERESTING MAYAMAEA SPECIES (BACILLARIOPHYCEAE) FROM OSOGOVO
    (Macedonian Academy of Sciences and Arts, 2026-02-11)
    ;
    Zaova, Dušica
    ;
    Observations of asample from a small spring on MountainOsogovo revealed the presence of several interesting and previously unknown small-celled diatom species. Among them, the genus Mayamaeashows relatively high diversi-ty, with at least eight species. Four species are presented in this study, two of which are described as new: Mayamaea matevskianasp. nov. and Mayamaea stafiloviiLevkov & Zaova sp. nov. Mayamaea matevskianais characterized by elliptical to elliptic-lanceolate valves, relatively coarse and strongly radiate striae, an indistinct central area bordered by more distantly positioned central striae, slightly expanded proximal raphe ends, and simple distal raphe ends. Maya-maea stafiloviihas a similar valve morphology and shape of the central area to M. matevskianabut differences can be observed in the valve size (which is considerably smaller than M. matevskiana) and the shape of the external distal ra-phe ends (which are long, slightly deflected, and extend onto the valve mantle). The new species are described based on detailed light and scanning electron microscopic observations.