Planktonic centric diatoms from the Eastern Alps: morphology, biogeography and ecology
Centric diatoms from 26 lakes along the northern perialpine areas and lower altitude valleys and terraces along the W-E extension of the Eastern Alps (mostly in Austria) were studied with the intention to facilitate taxonomic identification and ecological studies in the context of water quality moni...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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W. Szafer Institute of Botany, Polish Academy of Sciences
2021-03-01
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| Series: | Plant and Fungal Systematics |
| Subjects: | |
| Online Access: | https://pfsyst.botany.pl/Planktonic-centric-diatoms-from-the-Eastern-Alps-nmorphology-biogeography-and-ecology,120425,0,2.html |
| _version_ | 1797246247166279680 |
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| author | Eugen Rott Werner Kofler |
| author_facet | Eugen Rott Werner Kofler |
| author_sort | Eugen Rott |
| collection | DOAJ |
| description | Centric diatoms from 26 lakes along the northern perialpine areas and lower
altitude valleys and terraces along the W-E extension of the Eastern Alps (mostly in Austria)
were studied with the intention to facilitate taxonomic identification and ecological
studies in the context of water quality monitoring according to the Water Framework
Directive of the European Community. Eight genera were found: Aulacoseira , Conticribra ,
Cyclostephanos , Cyclotella , Lindavia , Pantocsekiella , Stephanodiscus , Urosolenia .
For more than 30 infrageneric taxa, morphology (light microscopy LM), ultrastructure
of frustules (scanning electron microscopy SEM), distribution pattern and ecology were
studied. Although most of the morphological and ultrastructural features correspond to
earlier findings, some additional observations were recorded and some taxonomic views
were critically assessed and commented based on our observations. The most important
nomenclature-related updates in recent studies are adapted based on molecular findings in
literature (mainly for the genera Lindavia and Pantocsekiella ). The most widely distributed
taxa found were small single celled centrics (mainly species of the genera Cyclotella s.str.,
Lindavia , Pantocsekiella and Stephanodiscus ) dominating frequently in small enriched
lakes. In contrast a few larger oligotraphentic single celled (e.g., Lindavia intermedia ) and
chain-forming taxa (e.g., Aulacoseira islandica ) were found to be restricted to the large
lakes. The evaluation of the taxa pattern by Canonical Correspondence Analysis (CCA)
identified trophic status and lake size as the two primary influential environmental variables
for taxa distribution within the dataset. The trophic ranking of species is set in relation to
earlier studies and indicator lists. |
| first_indexed | 2024-04-24T19:39:46Z |
| format | Article |
| id | doaj.art-6fe962a3bbb54e088f7a1616baaa27ee |
| institution | Directory Open Access Journal |
| issn | 2544-7459 2657-5000 |
| language | English |
| last_indexed | 2024-04-24T19:39:46Z |
| publishDate | 2021-03-01 |
| publisher | W. Szafer Institute of Botany, Polish Academy of Sciences |
| record_format | Article |
| series | Plant and Fungal Systematics |
| spelling | doaj.art-6fe962a3bbb54e088f7a1616baaa27ee2024-03-25T11:16:08ZengW. Szafer Institute of Botany, Polish Academy of SciencesPlant and Fungal Systematics2544-74592657-50002021-03-0166113610.35535/pfsyst-2021-0001120425Planktonic centric diatoms from the Eastern Alps: morphology, biogeography and ecologyEugen Rott0https://orcid.org/0000-0001-7519-8072Werner Kofler1Leopold Franzen’s University of Innsbruck, Faculty of Biology, Department Botany, Sternwartestrasse 15, 6020 Innsbruck, AustriaLeopold Franzen’s University of Innsbruck, Faculty of Biology, Department Botany, Sternwartestrasse 15, 6020 Innsbruck, AustriaCentric diatoms from 26 lakes along the northern perialpine areas and lower altitude valleys and terraces along the W-E extension of the Eastern Alps (mostly in Austria) were studied with the intention to facilitate taxonomic identification and ecological studies in the context of water quality monitoring according to the Water Framework Directive of the European Community. Eight genera were found: Aulacoseira , Conticribra , Cyclostephanos , Cyclotella , Lindavia , Pantocsekiella , Stephanodiscus , Urosolenia . For more than 30 infrageneric taxa, morphology (light microscopy LM), ultrastructure of frustules (scanning electron microscopy SEM), distribution pattern and ecology were studied. Although most of the morphological and ultrastructural features correspond to earlier findings, some additional observations were recorded and some taxonomic views were critically assessed and commented based on our observations. The most important nomenclature-related updates in recent studies are adapted based on molecular findings in literature (mainly for the genera Lindavia and Pantocsekiella ). The most widely distributed taxa found were small single celled centrics (mainly species of the genera Cyclotella s.str., Lindavia , Pantocsekiella and Stephanodiscus ) dominating frequently in small enriched lakes. In contrast a few larger oligotraphentic single celled (e.g., Lindavia intermedia ) and chain-forming taxa (e.g., Aulacoseira islandica ) were found to be restricted to the large lakes. The evaluation of the taxa pattern by Canonical Correspondence Analysis (CCA) identified trophic status and lake size as the two primary influential environmental variables for taxa distribution within the dataset. The trophic ranking of species is set in relation to earlier studies and indicator lists.https://pfsyst.botany.pl/Planktonic-centric-diatoms-from-the-Eastern-Alps-nmorphology-biogeography-and-ecology,120425,0,2.htmlcoscinodiscophyceaeecological water qualityultrastructurewater frameworkdirectiveaulacoseiraceaestephanodiscaceae |
| spellingShingle | Eugen Rott Werner Kofler Planktonic centric diatoms from the Eastern Alps: morphology, biogeography and ecology Plant and Fungal Systematics coscinodiscophyceae ecological water quality ultrastructure water framework directive aulacoseiraceae stephanodiscaceae |
| title | Planktonic centric diatoms from the Eastern Alps:
morphology, biogeography and ecology |
| title_full | Planktonic centric diatoms from the Eastern Alps:
morphology, biogeography and ecology |
| title_fullStr | Planktonic centric diatoms from the Eastern Alps:
morphology, biogeography and ecology |
| title_full_unstemmed | Planktonic centric diatoms from the Eastern Alps:
morphology, biogeography and ecology |
| title_short | Planktonic centric diatoms from the Eastern Alps:
morphology, biogeography and ecology |
| title_sort | planktonic centric diatoms from the eastern alps morphology biogeography and ecology |
| topic | coscinodiscophyceae ecological water quality ultrastructure water framework directive aulacoseiraceae stephanodiscaceae |
| url | https://pfsyst.botany.pl/Planktonic-centric-diatoms-from-the-Eastern-Alps-nmorphology-biogeography-and-ecology,120425,0,2.html |
| work_keys_str_mv | AT eugenrott planktoniccentricdiatomsfromtheeasternalpsmorphologybiogeographyandecology AT wernerkofler planktoniccentricdiatomsfromtheeasternalpsmorphologybiogeographyandecology |