Diatom communities in small water bodies at H. Arctowski Polish Antarctic Station (King George Island, South Shetland Islands, Antarctica)

Kawecka, Barbara; Olech, Maria; Nowogrodzka-Zagórska, M; Wojtuń, Bronisław

doi:10.1007/s003000050233

Cited by 30 publications

(19 citation statements)

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“…First, their list of Eunotia taxa has been screened to remove taxa that were reported from localities outside Antarctic Region (such as southern South America, Tasmania or New Zealand). Secondly, we checked the original Eunotia records listed by Kellogg & Kellogg (2002) and only retained those taxa that could unambiguously be confirmed on the basis of illustrations. Finally, new samples and samples from previous studies by the authors were reanalyzed for the presence of Eunotia taxa.…”

Section: Methodsmentioning

confidence: 99%

“…A critically revised list of all Eunotia taxa present in the Antarctic Region has been compiled on the basis of listed publications in Kellogg & Kellogg (2002) after a thorough screening of all records. First, their list of Eunotia taxa has been screened to remove taxa that were reported from localities outside Antarctic Region (such as southern South America, Tasmania or New Zealand).…”

Section: Methodsmentioning

confidence: 99%

“…In this paper, we present the first revised species list of the genus Eunotia present in Sub-Antarctic and Antarctic inland waters, compiled on the basis of a critical revision of literature reports (Kellogg & Kellogg 2002) and, where necessary, (re)analysis of slides and samples from our own Ant-arctic collections (see table 1). Twelve new Eunotia taxa are described from aquatic and terrestrial materials from several islands in Southern Ocean.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Revision of the genus Eunotia (Bacillariophyta) in the Antarctic Region

Vijver¹,

Haan²,

Lange‐Bertalot³

2014

Plecevo

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Revision of the genus Eunotia (Bacillariophyta) in the Antarctic Region

Vijver¹,

Haan²,

Lange‐Bertalot³

2014

Plecevo

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“…Studies on freshwater streams and their microbial mats have focussed mainly on the photoautotrophic organisms which form the matrix of the microbial mats (e.g. Alger et al, 1997;Hawes & Howard-Williams, 1998;Izaguirre & Pizarro, 1998;Kawecka et al, 1998;Nadeau & Castenholz, 2000).…”

Section: Introductionmentioning

confidence: 99%

Benthic heterotrophic flagellates in an Antarctic melt water stream

Dietrich

Arndt

2004

Hydrobiologia

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Investigations on the abundance, biomass and position of heterotrophic flagellates (HF) in the benthic microbial food web of a melt water stream on King George Island, Antarctic Peninsula, were undertaken during the Antarctic summer from 23rd December 1997 until 13th March 1998. Abundance and biomass of potential HF resources (picophotoautotrophic and non-photoautotrophic bacteria) as well as potential predators on HF (ciliates and meiofauna) were also investigated. HF abundance ranged from approximately 9 · 10 3 to 81 · 10 3 cells cm )3 , values which fall into the same range as those found in lower latitudes. Numerically important benthic HF were euglenids, kinetoplastids, thaumatomastigids and especially chrysomonads. Most species identified have been shown to have a worldwide distribution. Abundance of the benthic ciliates ranged from 27 to 950 cells cm )3 . Mean bacterial abundance was 1.9 · 10 7 and 5.2 · 10 8 cells cm )3 for picophotoautotrophic and non-photoautotrophic benthos, respectively. The well-developed microbial community was able to support the large number of nematods, gastotrichs, tardigrads and rotifers with abundances reaching more than 1000 individuals cm )3 . The largest portion of heterotrophic biomass was formed by the meiofauna with a mean of 63 lg C cm )3 , followed by that of the heterotrophic bacteria with 4.80 lg C cm )3 . Picophotoautotrophic bacteria contributed a mean of 1.37 lg C cm )3 . HF and ciliates mean biomass was 0.61 and 1.99 lg C cm )3 , respectively, with the HF biomass comprising between <10 and 70% of the total protozoan biomass. The data obtained in this study identify the melt water stream as a hot-spot of heterotrophic microbial and meiofaunal activity during the austral summer. The HF in the melt water stream formed a diverse group in terms of taxa and potential feeding types. Chrysomonads, kinetoplastids, euglenids and thaumatomastigida were the most abundant taxa. A classification into feeding types identified an average of 34% of the total HF as bacterivorous while all others were able to utilise other, larger organisms as resources. Potential trophic interactions between HF and bacteria and higher trophic levels are discussed.

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“…They are good indicators of chemical and physical conditions and respond to a variety of factors such as nutrient enrichment (KAWECKA et al, 1998;LIM et al, 2001a, b), salinity (ROBERTS et al, 2001), acid-base status and alkalinity (HAWORTH and ATKINSON, 1988;DOUGLAS and SMOL, 1993;DOUGLAS and SMOL, 1995), hydrological conditions such as water level fluctuations, hydroperiod and drought (GAISER et al, 1998), and habitat character (DOUGLAS and SMOL, 1993;MICHELUTTI et al, 2003). Although diatoms have been widely used to monitor water quality in running waters and lakes (STEVENSON and PAN, 1999;HALL and SMOL, 1999), fewer studies have investigated their application to indicate environmental change in small water bodies such as ponds.…”

Section: Introductionmentioning

confidence: 99%

Diatoms in Lowland Ponds of Koshi Tappu, Eastern Nepal – Relationships with Chemical and Habitat Characteristics

Simkhada

Jüttner

Chimonides

2006

International Review of Hydrobiology

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Epiphytic and epipelic diatom assemblages were studied in relation to water chemistry and habitat character in lowland ponds of Koshi Tappu, Nepal. Epiphytic assemblages from different microhabitats, such as morphologically different plants, roots, stems, filamentous algae and decomposing leaves, within the same ponds were similar. Assemblage composition of epiphytic diatoms reflected gradients in water chemistry and habitat character of the pond with respect to pond vegetation and substratum type, bank profile and land use in the catchment. Epiphytic and epipelic assemblages responded to chemical gradients in the surface water, particularly concentrations of Ca, Mg and Na, but epipelic diatoms also indicated differences in SO 4 . Epipelic diatoms were also sensitive to interstitial water chemistry variations in PO 4 , Si, Ca and Mg. There were no relationships between species richness, diversity or evenness and gradients in water chemistry and habitat character.

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Diatom communities in small water bodies at H. Arctowski Polish Antarctic Station (King George Island, South Shetland Islands, Antarctica)

Cited by 30 publications

References 1 publication

Revision of the genus Eunotia (Bacillariophyta) in the Antarctic Region

Revision of the genus Eunotia (Bacillariophyta) in the Antarctic Region

Benthic heterotrophic flagellates in an Antarctic melt water stream

Diatoms in Lowland Ponds of Koshi Tappu, Eastern Nepal – Relationships with Chemical and Habitat Characteristics

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