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Natura Croatica : Periodicum Musei Historiae Naturalis Croatici, Vol. 26 No. 2, 2017.

Original scientific paper

https://doi.org/10.20302/NC.2017.26.22

New sites of rare cold-water golden algae Hydrurus foetidus (Villars) Trevisan (Ochrophyta: Chrysophyceae) in Croatia

Nikola Koletić ; University of Zagreb, Faculty of Science, Division of Biology, Department of Botany, Marulićev trg 20/II, 10000 Zagreb, Croatia
Antun Alegro ; University of Zagreb, Faculty of Science, Division of Biology, Department of Botany, Marulićev trg 20/II, 10000 Zagreb, Croatia
Vedran Šegota ; University of Zagreb, Faculty of Science, Division of Biology, Department of Botany, Marulićev trg 20/II, 10000 Zagreb, Croatia
Nina Vuković ; University of Zagreb, Faculty of Science, Division of Biology, Department of Botany, Marulićev trg 20/II, 10000 Zagreb, Croatia
Anja Rimac ; University of Zagreb, Faculty of Science, Division of Biology, Department of Botany, Marulićev trg 20/II, 10000 Zagreb, Croatia
Tihana Vilović ; University of Zagreb, Faculty of Science, Division of Biology, Department of Botany, Marulićev trg 20/II, 10000 Zagreb, Croatia

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Abstract

Two new sites with benthic freshwater alga Hydrurus foetidus (Villars) Trevisan have been discovered in Dinaric Ecoregion of Croatia. The sites are located in two karst watercourses: Kupa River and Slušnica River. Both sites are non-shadowed aquatic habitats, with developed vegetation characteristic for clear, running waters. The alga was found during summer months at its disintegration stage, and during autumn at the beginning of its growing stage. In the Kupa River, incrusted calcium carbonate was found within the thalli of H. foetidus. After the first known record in Bijela Rijeka River from 2015, our findings represent the second and the third known localities of this species in Croatia. Even though the vegetation composition indicates high ecological status of the sites, future anthropogenic impacts and climatic changes could become a threat to this underexplored species in Croatia.

Keywords

benthic; freshwater; macroalgae; Slušnica River; Kupa River

Hrčak ID:

191543

URI

https://hrcak.srce.hr/191543

Publication date:

31.12.2017.

Article data in other languages: croatian

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