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Aulacoseira subarctica

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Micrographs (Hitachi S-3400N SEM) of  <span class="search-highlight">Aulacoseira</span> <span class="search-highlight">subarctica</span>  (O. Müll.) E....
Published: 01 September 2016
Fig. 3. Micrographs (Hitachi S-3400N SEM) of Aulacoseira subarctica (O. Müll.) E.Y. Haw. from the bottom sediments sampled from the underwater Sofia Lepneva Ridge of Lake Teletskoye.
Journal Article
Published: 01 June 2015
Russ. Geol. Geophys. (2015) 56 (6): 947–958.
...A.S. Avramenko; M.V. Cherepanova; V.S. Pushkar’; S.B. Yarusova Abstract Three Far East diatomites, Puzanov (Kunashir Island, Kuril Islands), Sergeevskii, and Terekhovka (Southern Primorye) are characterized in detail. Rock-forming taxa are identified (Puzanov— Aulacoseira subarctica (O. Müll...
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Series: GSA Special Papers
Published: 12 August 2021
DOI: 10.1130/2018.2536(01)
EISBN: 9780813795362
... flora is dominated by Aulacoseira subarctica . INTRODUCTION Fallen Leaf Lake METHODS Environmental Proxies in Lake Sediments Lignin Phenol Analyses Plant Tissue and Forest Litter Samples Pollen RESULTS Chronology Lignin Phenols...
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Journal Article
Published: 01 September 2016
Russ. Geol. Geophys. (2016) 57 (9): 1321–1333.
...Fig. 3. Micrographs (Hitachi S-3400N SEM) of Aulacoseira subarctica (O. Müll.) E.Y. Haw. from the bottom sediments sampled from the underwater Sofia Lepneva Ridge of Lake Teletskoye. ...
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figs 1-5.  Cyclotella rossii  Håkansson.  figs 6-11.  <span class="search-highlight">Aulacoseira</span> distans  ...
Published: 01 November 2003
subarctica (O. Müller) Haworth. figs 18-20. Aulacoseira valida (Grunow) Krammer. fig. 21. Aulacoseira italica (Ehrenberg) Simonsen. figs 1-10, 12-14, 16-17, 19-21 LM micrographs (magnification × 1500); figs 11, 15, 18 SEM micrographs (scale bars: 11=5 μm; 15, 18=10 μm).
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Variations in the number of diatom species valves (mln valves/g) amounting ...
Published: 01 September 2016
, Aulacoseira subarctica ; e , A. italica ; f , Staurosirella pinnata ; g , Fragilaria pulchella ; h , F. capucina var. rumpens ; i , Ulnaria ulna ; j , Cymbella sinuata ; k , Encyonema ventricosa ; l , Cocconeis placentula ; m , Tryblionella angustata ; n , Nitzschia fonticola . 1–5, most
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Percent relative abundances of selected diatoms, sedimentary chlorophyll- a...
Published: 27 July 2017
. dubia , S. martyi , S. pinnata , S. pinnata var. intercedens , S. pinnata var. lancettula ) as well as Aulacoseira subarctica and Aulacoseira granulata .
Journal Article
Published: 01 November 2003
Journal of Micropalaeontology (2003) 22 (2): 183–208.
... subarctica (O. Müller) Haworth. figs 18-20. Aulacoseira valida (Grunow) Krammer. fig. 21. Aulacoseira italica (Ehrenberg) Simonsen. figs 1-10, 12-14, 16-17, 19-21 LM micrographs (magnification × 1500); figs 11, 15, 18 SEM micrographs (scale bars: 11=5 μm; 15, 18=10 μm). ...
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Journal Article
Published: 11 March 2005
Canadian Journal of Earth Sciences (2005) 42 (2): 243–257.
... 113 . Edited by Barker P.F. Kennett J.P. . Ocean Drilling Program , College Station, Texas, USA . pp.  365 – 401 . Gibson C.E. Fitzsimons A.G. 1990 . Induction of the resting phase in the planktonic diatom Aulacoseira subarctica in very low light . British...
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Comparison of spine morphology among extant  <span class="search-highlight">Aulacoseira</span>  taxa ( a – h ), a...
Published: 11 March 2005
Fig. 8. Comparison of spine morphology among extant Aulacoseira taxa ( a – h ), a Miocene fossil Aulacoseira ( i – j ), Eoseira ( k – i ), and Archepyrgus ( m – s ). Modern specimens include: Aulacoseira baicalensis , clavate linking ( a ) and small conical separation spines ( b
Journal Article
Journal: Paleobiology
Published: 01 January 2006
Paleobiology (2006) 32 (1): 38–54.
... in two larger and more heavily silicified diatoms, Aulacoseira subarctica (O. Müller) Haworth and S. yellowstonensis , over one small and lightly silicified species, S. minutulus (Kützing) Round starting at about 10–11 Ka ( Fig. 9 ). Of special interest to this study, S. yellowstonensis occurs...
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Journal Article
Published: 01 August 2016
Russ. Geol. Geophys. (2016) 57 (8): 1239–1247.
... of the Kotokel lake sediments ( Fig. 2 ) develops mostly in summer at water temperatures from ~7–8 to ~18–20 °C, except for the spring subice species Aulacoseira islandica and Aulacoseira subarctica ( Barinova et al., 2006 ; Bezrukova et al., 2010 ; Fedotov et al., 2012 ; Kuzmich, 1988 ; Popovskaya et al...
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Journal Article
Journal: GSA Bulletin
Published: 27 July 2017
GSA Bulletin (2018) 130 (1-2): 3–23.
.... dubia , S. martyi , S. pinnata , S. pinnata var. intercedens , S. pinnata var. lancettula ) as well as Aulacoseira subarctica and Aulacoseira granulata . ...
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Journal Article
Published: 01 January 2022
Russ. Geol. Geophys. (2022) 63 (1): 55–71.
... in the sample from Lizhemsky Bay (255 million). Planktonic diatoms predominate at all 12 stations (61–92%). The most widespread and numerous species in the composition of diatom complexes are Aulacoseira islandica (16–45%) and Aulacoseira subarctica (13–42%). A. islandica , a neutrophile living in a wide...
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Journal Article
Published: 01 February 2004
Russ. Geol. Geophys. (2004) 45 (2): 163–193.
...−1.12 myr [ 31 ]. Therefore, the Cyclotella ocellata zone is an important stratigraphic marker for BDP-99. This interval in BDP-99 contains abundant Aulacoseira alpigena , whereas the same interval in BDP-96-2 contained Aulacoseira subarctica as the second dominant species [ 31 ]. The difference...
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Journal Article
Published: 01 December 2012
Russ. Geol. Geophys. (2012) 53 (12): 1342–1350.
... are Stephanodiscus meyerii (0.04–6.9%), Cyclotella baicalensis (0.12–3.1%), Synedra ulna var. danica (0.01–0.45%), and Cyclostephanos dubius (0.01–0.17%). The following species occur rarely: Aulacoseira granulata , A. ambigua , A. subarctica , Melosira varians , Ellerbekia teres , Stephanodiscus...
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Journal Article
Published: 01 November 2018
Russ. Geol. Geophys. (2018) 59 (11): 1410–1418.
... of sampled section. 1, section of overbank deposits, Komissarovka River valley. Assemblage 1 (6–26 cm): up to 53.3% planktonic species Aulacoseira italica ; 11% A. subarctica ; quite high percentages of bottom species Pinnularia borealis (22.2%) and Hantzschia amphioxis (11%) common to soils...
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