Relations between Benthic Diatom Community and Characteristics of Karst Ponds in the Alpine Region of Slovenia

The aim of this research was to investigate the structure of the benthic diatom community and its relations to selected environmental parameters. We collected samples in 16 karst ponds in the alpine region of Slovenia, where the Alpine karst is found. Since the predominating substrate in these ponds...

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Autores principales:	Katarina Novak, Igor Zelnik
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	epipelon diatoms karst ponds wetlands southeast Alps Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/f03d0a78cdf84746a78218821246c64e
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spelling	oai:doaj.org-article:f03d0a78cdf84746a78218821246c64e2021-11-25T17:22:25ZRelations between Benthic Diatom Community and Characteristics of Karst Ponds in the Alpine Region of Slovenia10.3390/d131105311424-2818https://doaj.org/article/f03d0a78cdf84746a78218821246c64e2021-10-01T00:00:00Zhttps://www.mdpi.com/1424-2818/13/11/531https://doaj.org/toc/1424-2818The aim of this research was to investigate the structure of the benthic diatom community and its relations to selected environmental parameters. We collected samples in 16 karst ponds in the alpine region of Slovenia, where the Alpine karst is found. Since the predominating substrate in these ponds was clay, the epipelic community was analyzed. Hydromorphological characteristics, and physical and chemical conditions were also measured at each site. We found 105 species of diatoms, which belonged to 32 genera. The most frequent taxa were <i>Gomphonema parvulum</i> (Kützing) Kützing, <i>Navicula cryptocephala</i> Kützing, <i>Sellaphora pupula</i> (Kützing) Mereschkowsky (species group) and <i>Achnanthidium pyrenaicum</i> (Hustedt) Kobayasi. The pond with the lowest diversity was found at the highest altitude, while, on the other hand, the most species-rich pond was found at the lowest altitude. Regarding the ecological types, the most common were motile species. We confirmed a positive correlation between the number of diatom species and the saturation of water with oxygen, while correlation between species richness and NH<sub>4</sub>-N was negative. The content of NO<sub>3</sub>-N and NH<sub>4</sub>-N explained almost 20% of the total variability of diatom community. Unlike our expectations, we calculated a negative correlation between the diversity of macroinvertebrates and diatoms, which is probably a consequence of different responses to environmental conditions.Katarina NovakIgor ZelnikMDPI AGarticleepipelondiatomskarst pondswetlandssoutheast AlpsBiology (General)QH301-705.5ENDiversity, Vol 13, Iss 531, p 531 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	epipelon diatoms karst ponds wetlands southeast Alps Biology (General) QH301-705.5
spellingShingle	epipelon diatoms karst ponds wetlands southeast Alps Biology (General) QH301-705.5 Katarina Novak Igor Zelnik Relations between Benthic Diatom Community and Characteristics of Karst Ponds in the Alpine Region of Slovenia
description	The aim of this research was to investigate the structure of the benthic diatom community and its relations to selected environmental parameters. We collected samples in 16 karst ponds in the alpine region of Slovenia, where the Alpine karst is found. Since the predominating substrate in these ponds was clay, the epipelic community was analyzed. Hydromorphological characteristics, and physical and chemical conditions were also measured at each site. We found 105 species of diatoms, which belonged to 32 genera. The most frequent taxa were <i>Gomphonema parvulum</i> (Kützing) Kützing, <i>Navicula cryptocephala</i> Kützing, <i>Sellaphora pupula</i> (Kützing) Mereschkowsky (species group) and <i>Achnanthidium pyrenaicum</i> (Hustedt) Kobayasi. The pond with the lowest diversity was found at the highest altitude, while, on the other hand, the most species-rich pond was found at the lowest altitude. Regarding the ecological types, the most common were motile species. We confirmed a positive correlation between the number of diatom species and the saturation of water with oxygen, while correlation between species richness and NH<sub>4</sub>-N was negative. The content of NO<sub>3</sub>-N and NH<sub>4</sub>-N explained almost 20% of the total variability of diatom community. Unlike our expectations, we calculated a negative correlation between the diversity of macroinvertebrates and diatoms, which is probably a consequence of different responses to environmental conditions.
format	article
author	Katarina Novak Igor Zelnik
author_facet	Katarina Novak Igor Zelnik
author_sort	Katarina Novak
title	Relations between Benthic Diatom Community and Characteristics of Karst Ponds in the Alpine Region of Slovenia
title_short	Relations between Benthic Diatom Community and Characteristics of Karst Ponds in the Alpine Region of Slovenia
title_full	Relations between Benthic Diatom Community and Characteristics of Karst Ponds in the Alpine Region of Slovenia
title_fullStr	Relations between Benthic Diatom Community and Characteristics of Karst Ponds in the Alpine Region of Slovenia
title_full_unstemmed	Relations between Benthic Diatom Community and Characteristics of Karst Ponds in the Alpine Region of Slovenia
title_sort	relations between benthic diatom community and characteristics of karst ponds in the alpine region of slovenia
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f03d0a78cdf84746a78218821246c64e
work_keys_str_mv	AT katarinanovak relationsbetweenbenthicdiatomcommunityandcharacteristicsofkarstpondsinthealpineregionofslovenia AT igorzelnik relationsbetweenbenthicdiatomcommunityandcharacteristicsofkarstpondsinthealpineregionofslovenia
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Relations between Benthic Diatom Community and Characteristics of Karst Ponds in the Alpine Region of Slovenia

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