PERIPHYTIC DIATOM ASSEMBLAGES FROM HIGH ARCTIC PONDS 1
ABSTRACT Epiphytic, epilithic, and surface sediment diatom assemblages were identified and enumerated from 35 study ponds on CapeHerschel (78°37″N, 74°42″W), east‐central Ellesmere Island, Canada. All the sites are shallow (maximum depth <2 m), clear, oligotrophic, and freshwater. The ponds freez...
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crwiley:10.1111/j.0022-3646.1995.00060.x 2024-06-02T08:02:15+00:00 PERIPHYTIC DIATOM ASSEMBLAGES FROM HIGH ARCTIC PONDS 1 Douglas, Marianne S. V. Smol, John P. 1995 http://dx.doi.org/10.1111/j.0022-3646.1995.00060.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-3646.1995.00060.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-3646.1995.00060.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Phycology volume 31, issue 1, page 60-69 ISSN 0022-3646 1529-8817 journal-article 1995 crwiley https://doi.org/10.1111/j.0022-3646.1995.00060.x 2024-05-03T11:22:02Z ABSTRACT Epiphytic, epilithic, and surface sediment diatom assemblages were identified and enumerated from 35 study ponds on CapeHerschel (78°37″N, 74°42″W), east‐central Ellesmere Island, Canada. All the sites are shallow (maximum depth <2 m), clear, oligotrophic, and freshwater. The ponds freeze completely for 10 months of the year. Major ion concentrations are relatively similar among the 35 sites, although environmental gradients exist. Over 130 diatom taxa from 28 genera were identified in the periphyton samples. Marked differences in species composition were evident among the ponds. Moreover, many of the diatoms exhibited varying degrees of microhabitat specificity. Variance partitioning by canonical correspondence analysis showed that 26% of the total variance exhibited by diatom species composition could be accounted for by the measured environmental variables (i.e. 10.2% by habitat and 15.8% by water chemistry). Pondwater alkalinity best explained the distribution of taxa, and weighted averaging regression and calibration were used to develop a transfer function to infer pondwater alkalinity from the diatom assemblages. Other important environmental variables included [Na + ] for the epilithic and [SiO 2 ] for the epiphytic assemblages . Article in Journal/Newspaper Arctic Ellesmere Island Wiley Online Library Arctic Canada Ellesmere Island Journal of Phycology 31 1 60 69 |
institution |
Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT Epiphytic, epilithic, and surface sediment diatom assemblages were identified and enumerated from 35 study ponds on CapeHerschel (78°37″N, 74°42″W), east‐central Ellesmere Island, Canada. All the sites are shallow (maximum depth <2 m), clear, oligotrophic, and freshwater. The ponds freeze completely for 10 months of the year. Major ion concentrations are relatively similar among the 35 sites, although environmental gradients exist. Over 130 diatom taxa from 28 genera were identified in the periphyton samples. Marked differences in species composition were evident among the ponds. Moreover, many of the diatoms exhibited varying degrees of microhabitat specificity. Variance partitioning by canonical correspondence analysis showed that 26% of the total variance exhibited by diatom species composition could be accounted for by the measured environmental variables (i.e. 10.2% by habitat and 15.8% by water chemistry). Pondwater alkalinity best explained the distribution of taxa, and weighted averaging regression and calibration were used to develop a transfer function to infer pondwater alkalinity from the diatom assemblages. Other important environmental variables included [Na + ] for the epilithic and [SiO 2 ] for the epiphytic assemblages . |
format |
Article in Journal/Newspaper |
author |
Douglas, Marianne S. V. Smol, John P. |
spellingShingle |
Douglas, Marianne S. V. Smol, John P. PERIPHYTIC DIATOM ASSEMBLAGES FROM HIGH ARCTIC PONDS 1 |
author_facet |
Douglas, Marianne S. V. Smol, John P. |
author_sort |
Douglas, Marianne S. V. |
title |
PERIPHYTIC DIATOM ASSEMBLAGES FROM HIGH ARCTIC PONDS 1 |
title_short |
PERIPHYTIC DIATOM ASSEMBLAGES FROM HIGH ARCTIC PONDS 1 |
title_full |
PERIPHYTIC DIATOM ASSEMBLAGES FROM HIGH ARCTIC PONDS 1 |
title_fullStr |
PERIPHYTIC DIATOM ASSEMBLAGES FROM HIGH ARCTIC PONDS 1 |
title_full_unstemmed |
PERIPHYTIC DIATOM ASSEMBLAGES FROM HIGH ARCTIC PONDS 1 |
title_sort |
periphytic diatom assemblages from high arctic ponds 1 |
publisher |
Wiley |
publishDate |
1995 |
url |
http://dx.doi.org/10.1111/j.0022-3646.1995.00060.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-3646.1995.00060.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-3646.1995.00060.x |
geographic |
Arctic Canada Ellesmere Island |
geographic_facet |
Arctic Canada Ellesmere Island |
genre |
Arctic Ellesmere Island |
genre_facet |
Arctic Ellesmere Island |
op_source |
Journal of Phycology volume 31, issue 1, page 60-69 ISSN 0022-3646 1529-8817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.0022-3646.1995.00060.x |
container_title |
Journal of Phycology |
container_volume |
31 |
container_issue |
1 |
container_start_page |
60 |
op_container_end_page |
69 |
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1800746745421889536 |