Change of microplankton community structure in response to fertilization of an arctic lake
Microplankton in an oligotrophic arctic lake were assessed by direct counts for one summer prior to nutrient additions and three summers during which inorganic nitrogen and phosphorus were added to the lake at approximately ten times ambient loading rates. Protozoa increased significantly in both nu...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1038.6339 2023-05-15T14:53:56+02:00 Change of microplankton community structure in response to fertilization of an arctic lake Parke A Rublee Neil Bettez Rublee P A N Bettez The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1038.6339 http://libres.uncg.edu/ir/uncg/f/P_Rublee_Change_1995.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1038.6339 http://libres.uncg.edu/ir/uncg/f/P_Rublee_Change_1995.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://libres.uncg.edu/ir/uncg/f/P_Rublee_Change_1995.pdf text ftciteseerx 2020-03-08T01:19:16Z Microplankton in an oligotrophic arctic lake were assessed by direct counts for one summer prior to nutrient additions and three summers during which inorganic nitrogen and phosphorus were added to the lake at approximately ten times ambient loading rates. Protozoa increased significantly in both number and biomass following fertilization, and community structure changed from dominance by oligotrichs prior to fertilization to dominance by the bacterivorous peritrich Epistylis rotans in the second and third years of fertilization. Rotifer abundance and biomass was not significantly different among summers, although one species, Conochilus natans that had not been seen previously, was present during the second and third year of fertilization. By the third year of fertilization both protozoan and rotifer biomass had declined from peak levels, while crustacean zooplankton nauplius abundance had increased suggesting the emergence of top-down regulatory controls as the lake became eutrophic. Text Arctic Zooplankton Rotifer Unknown Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) |
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Open Polar |
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Unknown |
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ftciteseerx |
language |
English |
description |
Microplankton in an oligotrophic arctic lake were assessed by direct counts for one summer prior to nutrient additions and three summers during which inorganic nitrogen and phosphorus were added to the lake at approximately ten times ambient loading rates. Protozoa increased significantly in both number and biomass following fertilization, and community structure changed from dominance by oligotrichs prior to fertilization to dominance by the bacterivorous peritrich Epistylis rotans in the second and third years of fertilization. Rotifer abundance and biomass was not significantly different among summers, although one species, Conochilus natans that had not been seen previously, was present during the second and third year of fertilization. By the third year of fertilization both protozoan and rotifer biomass had declined from peak levels, while crustacean zooplankton nauplius abundance had increased suggesting the emergence of top-down regulatory controls as the lake became eutrophic. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Parke A Rublee Neil Bettez Rublee P A N Bettez |
spellingShingle |
Parke A Rublee Neil Bettez Rublee P A N Bettez Change of microplankton community structure in response to fertilization of an arctic lake |
author_facet |
Parke A Rublee Neil Bettez Rublee P A N Bettez |
author_sort |
Parke A Rublee |
title |
Change of microplankton community structure in response to fertilization of an arctic lake |
title_short |
Change of microplankton community structure in response to fertilization of an arctic lake |
title_full |
Change of microplankton community structure in response to fertilization of an arctic lake |
title_fullStr |
Change of microplankton community structure in response to fertilization of an arctic lake |
title_full_unstemmed |
Change of microplankton community structure in response to fertilization of an arctic lake |
title_sort |
change of microplankton community structure in response to fertilization of an arctic lake |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1038.6339 http://libres.uncg.edu/ir/uncg/f/P_Rublee_Change_1995.pdf |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) |
geographic |
Arctic Arctic Lake |
geographic_facet |
Arctic Arctic Lake |
genre |
Arctic Zooplankton Rotifer |
genre_facet |
Arctic Zooplankton Rotifer |
op_source |
http://libres.uncg.edu/ir/uncg/f/P_Rublee_Change_1995.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1038.6339 http://libres.uncg.edu/ir/uncg/f/P_Rublee_Change_1995.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766325624026169344 |