Cavinula scutiformis Mann & Stickle
Cavinula scutiformis (Grunow ex A. Schmidt) Mann & Stickle (Figs 107–111) Basionym : Navicula scutiformis Grunow in Schmidt et al. 1881, fig. 70: 62 Valves elliptic, with rounded apices. Valve length 23–32 µm, width 17–22 µm. Striae radiate throughout valve length. Striae composed of fine, ellip...
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Zenodo
2014
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Online Access: | https://dx.doi.org/10.5281/zenodo.5149462 https://zenodo.org/record/5149462 |
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ftdatacite:10.5281/zenodo.5149462 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Biodiversity Taxonomy Chromista Bacillariophyta Bacillariophyceae Naviculales Cavinulaceae Cavinula Cavinula scutiformis |
spellingShingle |
Biodiversity Taxonomy Chromista Bacillariophyta Bacillariophyceae Naviculales Cavinulaceae Cavinula Cavinula scutiformis Cvetkoska, Aleksandra Levkov, Zlatko Hamilton, Paul B. Potapova, Marina Cavinula scutiformis Mann & Stickle |
topic_facet |
Biodiversity Taxonomy Chromista Bacillariophyta Bacillariophyceae Naviculales Cavinulaceae Cavinula Cavinula scutiformis |
description |
Cavinula scutiformis (Grunow ex A. Schmidt) Mann & Stickle (Figs 107–111) Basionym : Navicula scutiformis Grunow in Schmidt et al. 1881, fig. 70: 62 Valves elliptic, with rounded apices. Valve length 23–32 µm, width 17–22 µm. Striae radiate throughout valve length. Striae composed of fine, elliptic to somewhat rounded areolae, 12–14 in 10 µm. Stria density, 18–24 to 28–30 in 10 µm. Central area narrow, linearlanceolate, transforming into a defined central space transversally elongated, rounded to elliptical in shape. Central area formed by gradual shortening of striae along both valve margins. Raphe system linear; proximal raphe fissures tear-drop like. Distal raphe fissures pore-like and small, terminating on valve face. Type :— Stavanger, Norway. Grunow in Schmidt et al. 1881, fig. 70: 62 (holotype). Observations:— This taxon is identified by the elliptic valve shape, large transversely elongated central area, high stria and areola densities at the apices, and the presence of distinct pore-like fissures at the valve apices. Distribution:— C. scutiformis occurs in the northern regions of Europe, Asia and North America. In the CANA collection this taxon was identified from 35 localities in western (excluding Saskatchewan, Manitoba) and eastern Canada, but not from the tundra region north of 60 degrees. In the framework of this study, C. scutiformis was identified in six more localities from Canada, in which it was previously not recorded: sediment core C2 (50–51 cm) recovered from Flower Round Lake, Crosson Lake Oakley (sediment core) Muskoka District, Clear Lake Oakley (sediment core), Muskoka District, (Ontario) and additionally Big Moose Lake, Moriah Parch Pond (New York) and Walden Pond (Massachusetts) in the United States. This taxon was also confirmed in Lac aux Araignees (Québec). C. scutiformis was identified in samples with low to circumneutral pH (5.1–7), an average weighted mean conductivity of 34.5 µS/cm, with a range of 26–65 µS/cm, and an average weighted mean alkalinity of 62 µeq/L, and a range between 6 and 153 µeq/L. Distribution Records:— Grunow in Schmidt et al. (1881, Atlas der Diatomaceen-kunde, Band I, Serie I-III, fig. 70: 62), Krammer & Lange-Bertalot (1986, fig. 59: 10, 11, Europe), Lange-Bertalot & Metzeltin (1996, fig. 24: 13, 14, fig. 114: 3, 4, Europe), Foged (1971, fig. 15: 20, Alaska). : Published as part of Cvetkoska, Aleksandra, Levkov, Zlatko, Hamilton, Paul B. & Potapova, Marina, 2014, The biogeographic distribution of Cavinula (Bacillariophyceae) in North America with the descriptions of two new species, pp. 181-207 in Phytotaxa 184 (4) on page 198, DOI: 10.11646/phytotaxa.184.4.1, http://zenodo.org/record/5146714 : {"references": ["Krammer, K. & Lange-Bertalot, H. (1986) Bacillariophyceae, 1. Teil: Naviculaceae. In: Ettl, H., Gerloff, J., Heynig, H. & Mollenhauer, D. (Eds.) Gustav Fischer, Stuttgart. Susswasserflora von Mitteleuropa (begrundet von A. Pascher) 2 / 1: 876 pp.", "Lange-Bertalot, H. & Metzeltin, D. (1996) Indicators of oligotrophy, 800 taxa representative of three ecologically distinct lake types: Carbon buffered - oligodystrophic - weakly buffered soft water. Iconographia Diatomologica 2: 390.", "Foged, N. (1971) Diatoms found in a bottom sediment sample from a small deep lake on the Northern Slope, Alaska. Nova Hedwigia 21: 1 - 114."]} |
format |
Text |
author |
Cvetkoska, Aleksandra Levkov, Zlatko Hamilton, Paul B. Potapova, Marina |
author_facet |
Cvetkoska, Aleksandra Levkov, Zlatko Hamilton, Paul B. Potapova, Marina |
author_sort |
Cvetkoska, Aleksandra |
title |
Cavinula scutiformis Mann & Stickle |
title_short |
Cavinula scutiformis Mann & Stickle |
title_full |
Cavinula scutiformis Mann & Stickle |
title_fullStr |
Cavinula scutiformis Mann & Stickle |
title_full_unstemmed |
Cavinula scutiformis Mann & Stickle |
title_sort |
cavinula scutiformis mann & stickle |
publisher |
Zenodo |
publishDate |
2014 |
url |
https://dx.doi.org/10.5281/zenodo.5149462 https://zenodo.org/record/5149462 |
long_lat |
ENVELOPE(-97.000,-97.000,-71.867,-71.867) ENVELOPE(142.665,142.665,-66.993,-66.993) ENVELOPE(-112.122,-112.122,57.734,57.734) |
geographic |
Canada Norway Walden Round Lake Clear Lake |
geographic_facet |
Canada Norway Walden Round Lake Clear Lake |
genre |
Tundra Alaska |
genre_facet |
Tundra Alaska |
op_relation |
http://zenodo.org/record/5146714 http://publication.plazi.org/id/7665E764A46CFF921D218F632070FFCC https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/phytotaxa.184.4.1 http://zenodo.org/record/5146714 http://publication.plazi.org/id/7665E764A46CFF921D218F632070FFCC https://dx.doi.org/10.5281/zenodo.5146722 https://dx.doi.org/10.5281/zenodo.5149463 https://zenodo.org/communities/biosyslit |
op_rights |
Open Access info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.5149462 https://doi.org/10.11646/phytotaxa.184.4.1 https://doi.org/10.5281/zenodo.5146722 https://doi.org/10.5281/zenodo.5149463 |
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spelling |
ftdatacite:10.5281/zenodo.5149462 2023-05-15T18:40:49+02:00 Cavinula scutiformis Mann & Stickle Cvetkoska, Aleksandra Levkov, Zlatko Hamilton, Paul B. Potapova, Marina 2014 https://dx.doi.org/10.5281/zenodo.5149462 https://zenodo.org/record/5149462 unknown Zenodo http://zenodo.org/record/5146714 http://publication.plazi.org/id/7665E764A46CFF921D218F632070FFCC https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/phytotaxa.184.4.1 http://zenodo.org/record/5146714 http://publication.plazi.org/id/7665E764A46CFF921D218F632070FFCC https://dx.doi.org/10.5281/zenodo.5146722 https://dx.doi.org/10.5281/zenodo.5149463 https://zenodo.org/communities/biosyslit Open Access info:eu-repo/semantics/openAccess Biodiversity Taxonomy Chromista Bacillariophyta Bacillariophyceae Naviculales Cavinulaceae Cavinula Cavinula scutiformis Text Taxonomic treatment article-journal ScholarlyArticle 2014 ftdatacite https://doi.org/10.5281/zenodo.5149462 https://doi.org/10.11646/phytotaxa.184.4.1 https://doi.org/10.5281/zenodo.5146722 https://doi.org/10.5281/zenodo.5149463 2021-11-05T12:55:41Z Cavinula scutiformis (Grunow ex A. Schmidt) Mann & Stickle (Figs 107–111) Basionym : Navicula scutiformis Grunow in Schmidt et al. 1881, fig. 70: 62 Valves elliptic, with rounded apices. Valve length 23–32 µm, width 17–22 µm. Striae radiate throughout valve length. Striae composed of fine, elliptic to somewhat rounded areolae, 12–14 in 10 µm. Stria density, 18–24 to 28–30 in 10 µm. Central area narrow, linearlanceolate, transforming into a defined central space transversally elongated, rounded to elliptical in shape. Central area formed by gradual shortening of striae along both valve margins. Raphe system linear; proximal raphe fissures tear-drop like. Distal raphe fissures pore-like and small, terminating on valve face. Type :— Stavanger, Norway. Grunow in Schmidt et al. 1881, fig. 70: 62 (holotype). Observations:— This taxon is identified by the elliptic valve shape, large transversely elongated central area, high stria and areola densities at the apices, and the presence of distinct pore-like fissures at the valve apices. Distribution:— C. scutiformis occurs in the northern regions of Europe, Asia and North America. In the CANA collection this taxon was identified from 35 localities in western (excluding Saskatchewan, Manitoba) and eastern Canada, but not from the tundra region north of 60 degrees. In the framework of this study, C. scutiformis was identified in six more localities from Canada, in which it was previously not recorded: sediment core C2 (50–51 cm) recovered from Flower Round Lake, Crosson Lake Oakley (sediment core) Muskoka District, Clear Lake Oakley (sediment core), Muskoka District, (Ontario) and additionally Big Moose Lake, Moriah Parch Pond (New York) and Walden Pond (Massachusetts) in the United States. This taxon was also confirmed in Lac aux Araignees (Québec). C. scutiformis was identified in samples with low to circumneutral pH (5.1–7), an average weighted mean conductivity of 34.5 µS/cm, with a range of 26–65 µS/cm, and an average weighted mean alkalinity of 62 µeq/L, and a range between 6 and 153 µeq/L. Distribution Records:— Grunow in Schmidt et al. (1881, Atlas der Diatomaceen-kunde, Band I, Serie I-III, fig. 70: 62), Krammer & Lange-Bertalot (1986, fig. 59: 10, 11, Europe), Lange-Bertalot & Metzeltin (1996, fig. 24: 13, 14, fig. 114: 3, 4, Europe), Foged (1971, fig. 15: 20, Alaska). : Published as part of Cvetkoska, Aleksandra, Levkov, Zlatko, Hamilton, Paul B. & Potapova, Marina, 2014, The biogeographic distribution of Cavinula (Bacillariophyceae) in North America with the descriptions of two new species, pp. 181-207 in Phytotaxa 184 (4) on page 198, DOI: 10.11646/phytotaxa.184.4.1, http://zenodo.org/record/5146714 : {"references": ["Krammer, K. & Lange-Bertalot, H. (1986) Bacillariophyceae, 1. Teil: Naviculaceae. In: Ettl, H., Gerloff, J., Heynig, H. & Mollenhauer, D. (Eds.) Gustav Fischer, Stuttgart. Susswasserflora von Mitteleuropa (begrundet von A. Pascher) 2 / 1: 876 pp.", "Lange-Bertalot, H. & Metzeltin, D. (1996) Indicators of oligotrophy, 800 taxa representative of three ecologically distinct lake types: Carbon buffered - oligodystrophic - weakly buffered soft water. Iconographia Diatomologica 2: 390.", "Foged, N. (1971) Diatoms found in a bottom sediment sample from a small deep lake on the Northern Slope, Alaska. Nova Hedwigia 21: 1 - 114."]} Text Tundra Alaska DataCite Metadata Store (German National Library of Science and Technology) Canada Norway Walden ENVELOPE(-97.000,-97.000,-71.867,-71.867) Round Lake ENVELOPE(142.665,142.665,-66.993,-66.993) Clear Lake ENVELOPE(-112.122,-112.122,57.734,57.734) |