Fottea 2023, 23(1):21-29 | DOI: 10.5507/fot.2022.010

One new species of Aneumastus D.G. Mann et Stickle (Bacillariophyceae) from Krka River, Croatia

Marija Gligora Udovič1, *, Mirela Šušnjara1, Antonija Kulaš1, Gordana Goreta2, Jasna Arapov3, Zlatko Levkov4
1 University of Zagreb, Faculty of Science, Department of Biology Rooseveltov trg 6, 10000 Zagreb, Croatia; *Corresponding author e-mail: marija.gligora.udovic@biol.pmf.hr, co-author e-mail: mirela.susnjara@biol.pmf.hr, antonija.kulas@biol.pmf.hr
2 Public Institution "National Park Krka", Trg Ivana Pavla II br. 5, HR-22000 Šibenik, Croatia; co-author email: gordana.goreta@npk.hr
3 Institute of Oceanography and Fisheries, Laboratory of Plankton and Shellfish Toxicity, Šetalište I. Meštrovića 63, 21000 Split, Croatia; co-author email: arapov@izor.hr
4 Institute of Biology, Faculty of Natural Science, Ss Cyril and Methodius University, Skopje, R. North Macedonia; co-author email: zlevkov@pmf.ukim.mk

Karst rivers in Croatia are common phenomena and known biodiversity hotspots for many different groups of organisms. Due their importance from a natural, cultural and socio-economic point of view, most of them are protected as National Parks. Diatoms in these habitats are not well known, and recently detailed study has been started. During observations of samples from Lake Visovac on Krka River, one Aneumastus species with specific morphological features, has been recorded. The species is characterized by linear valves with almost parallel margins in the mid-valve, rostrate apices and striae that are partly biseriate, coarsely punctate and distantly spaced. In this study, it is described as a new species Aneumastus visovacensis sp. nov. Its morphology is documented with light and scanning electron microscopy, described in detail, and compared with the most similar species from A. tusculus species complex.

Keywords: diatom, freshwater, karst river, Lake Visovac, taxonomy

Received: January 31, 2022; Revised: April 27, 2022; Accepted: May 20, 2022; Prepublished online: February 8, 2023; Published: April 1, 2023Show citation

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Udovič, M.G., Šušnjara, M., Kulaš, A., Goreta, G., Arapov, J., & Levkov, Z. (2023). One new species of Aneumastus D.G. Mann et Stickle (Bacillariophyceae) from Krka River, Croatia. Fottea, 23(1), 21-29. doi: 10.5507/fot.2022.010
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