Morphological descriptions and stratigraphic distributions of the chrysophycean stomatocysts from a recently acidified lake (Adirondack Park, N.Y.)

Duff, Katharine E.; Smol, John P.

doi:10.1007/bf00226558

Cited by 44 publications

(22 citation statements)

References 36 publications

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“…Dinobryon sociale var. americanum (cyst 79) is most likely an acidophilic species (Duff and Smol 1991;Smol 1988). In this study, as well as in a survey in Ontario (Wilkinson et al 1999), this cyst showed an affinity for lakes with low Na + and dissolved TP values (Figure 3).…”

Section: Cyst Autecologysupporting

confidence: 73%

“…Stomatocyst morphotypes present in Svalbard lakes and the primary reference in which this cyst is described. Zeeb et al, 1990;Zeeb & Smol, 1993;Duff & Smol, 1994cyst 118/58 Zeeb et al, 1990Duff & Smol, 1991cyst 120 Duff & Smol in Duff et al, 1992emend. Zeeb & Smol, 1993 …”

Section: Discussionmentioning

confidence: 99%

“…Many of these cysts have known preferences for acidic conditions (e.g. 73, 204, 101) (Duff 1994;Duff and Smol 1991;Smol 1988;Rybak et al 1991). Dinobryon sociale var.…”

Section: Cyst Autecologymentioning

confidence: 99%

“…Previous studies have shown that chrysophytes respond to a variety of environmental changes; including shifts in pH (Duff and Smol 1991;Facher and Schmidt 1996;Wilkinson et al 1999), trophic status (Zeeb et al 1990(Zeeb et al , 1994Wilkinson et al 1999), salinity (Pienitz et al 1992;Zeeb and Smol 1995), and climate (Zeeb and Smol 1993). Thus, if there have been environmental changes on Svalbard since pre-industrial times, it would be expected that chrysophyte species would respond to these changes.…”

Section: Recent Environmental Change On Svalbardmentioning

confidence: 99%

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Distribution and Autecology of Chrysophyte Cysts from High Arctic Svalbard Lakes: Preliminary Evidence of Recent Environmental Change

Betts-Piper

Zeeb

Smol

2004

Journal of Paleolimnology

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Chrysophycean stomatocyst assemblages were analysed from the sediments of 17 lakes and ponds from Svalbard as one component of a multi-proxy investigation of recent environmental change in the high Arctic. Sediment cores and water chemistry were collected from each of the study lakes, and chrysophyte stomatocysts were investigated from the top 0.25 cm of sediment (present-day) and bottom (i.e. bottom of short sediment core, pre-industrial) sediment samples. This study represents the first undertaking of chrysophyte cyst morphology and distribution on Svalbard. A total of 153 cyst morphotypes were described with light microscopy and/or scanning electron microscopy, of which 21 are new forms.Canonical correspondence analysis indicates that the present-day distribution of cysts is significantly related to pH (p = 0.02), altitude (p = 0.02), and Na + (p = 0.04). Marked shifts in chrysophyte cyst assemblages were recorded between the top and bottom sediment samples of most lakes. Rose et al. (2004) have demonstrated that Svalbard lakes receive atmospheric contaminants from both local and remote sources. The observed assemblage shifts may be the result of the combined effects of these point sources and long-range pollutants, or the effects of recent climate change, or both.

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Section: Cyst Autecologysupporting

confidence: 73%

Section: Discussionmentioning

confidence: 99%

“…Many of these cysts have known preferences for acidic conditions (e.g. 73, 204, 101) (Duff 1994;Duff and Smol 1991;Smol 1988;Rybak et al 1991). Dinobryon sociale var.…”

Section: Cyst Autecologymentioning

confidence: 99%

Section: Recent Environmental Change On Svalbardmentioning

confidence: 99%

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Distribution and Autecology of Chrysophyte Cysts from High Arctic Svalbard Lakes: Preliminary Evidence of Recent Environmental Change

Betts-Piper

Zeeb

Smol

2004

Journal of Paleolimnology

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“…References: This stomatocyst has been found in Canada, U.S.A. (Duff et al 1995), central Europe (Facher & Schmidt 1996) and the Spanish part of Pyrenees (Pla 2001). **Stomatocyst 83, Duff & Smol 1991 (Fig. 35).…”

Section: *Stomatocyst 16 Duff and Smol Inmentioning

confidence: 99%

Chrysophycean stomatocysts from the Staw Toporowy Nizni lake (Tatra National Park, Poland)

Cabała

Piątek

2004

Ann. Limnol. - Int. J. Lim.

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Chrysophycean cysts in Sierra Nevada (California) lake sediments: paleoecological potential

et al. 1992

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Thirty-three lakes in the Sierra Nevada range of California were investigated as part of a paleoecological study of the potential effects of acid deposition on sensitive lake/watershed ecosystems. Chrysophyte cysts from surface sediment samples were analyzed and compared with data on pH and alkalinity. This paper identifies the twenty-five dominant chrysophyte cyst taxa and provides information on their morphology, abundance, distribution and ecology. Chrysophycean cysts were generally abundant and well-preserved in lake sediments of our study sites. Twelve taxa occurred in more than twenty of the thirty-three lakes; these taxa were often quite abundant. In contrast, only nine taxa occurred in ten or fewer lakes. Abundance Weighted Mean (AWM) pH varied from 6.45 to 8.34 and AWM alkalinity varied from 46 to 588 ~eq/L. We delineated pH preference categories, based on AWM pH values and frequency diagrams of cyst abundance vs. lakewater pH. We classified five taxa as acidophilous, nine as circumneutrals, six as alkaliphilous and five as indifferent. Given that the cyst types differ greatly in their abundance relative to pH and alkalinity, it is clear that they have potential for paleolimnological studies of Sierra lakes biogeochemistry.

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Morphological descriptions and stratigraphic distributions of the chrysophycean stomatocysts from a recently acidified lake (Adirondack Park, N.Y.)

Cited by 44 publications

References 36 publications

Distribution and Autecology of Chrysophyte Cysts from High Arctic Svalbard Lakes: Preliminary Evidence of Recent Environmental Change

Distribution and Autecology of Chrysophyte Cysts from High Arctic Svalbard Lakes: Preliminary Evidence of Recent Environmental Change

Chrysophycean stomatocysts from the Staw Toporowy Nizni lake (Tatra National Park, Poland)

Chrysophycean cysts in Sierra Nevada (California) lake sediments: paleoecological potential

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