� 1999, by the American Society of Limnology and Oceanography, Inc. Restoration of the food web of an alpine lake following fish stocking
Trout stocking in the mid-1960s eliminated the calanoid copepod Hesperodiaptomus arcticus and other largebodied crustaceans such as Gammarus lacustris, Daphnia middendorffiana, and Daphnia pulex from many alpine lakes in the Rocky Mountain Parks of Canada. H. arcticus frequently dominates the plankt...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.419.6455 2023-05-15T18:46:10+02:00 � 1999, by the American Society of Limnology and Oceanography, Inc. Restoration of the food web of an alpine lake following fish stocking A. S. Mcnaught D. W. Schindler B. R. Parker A. J. Paul D. B. Donald M. Agbeti The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.419.6455 http://www.aslo.org/lo/toc/vol_44/issue_1/0127.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.419.6455 http://www.aslo.org/lo/toc/vol_44/issue_1/0127.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.aslo.org/lo/toc/vol_44/issue_1/0127.pdf text ftciteseerx 2016-01-08T03:53:34Z Trout stocking in the mid-1960s eliminated the calanoid copepod Hesperodiaptomus arcticus and other largebodied crustaceans such as Gammarus lacustris, Daphnia middendorffiana, and Daphnia pulex from many alpine lakes in the Rocky Mountain Parks of Canada. H. arcticus frequently dominates the plankton communities of fishless lakes, preying on rotifers and nauplius larvae. Following the extirpation of H. arcticus, rotifers and small-bodied cyclopoid copepods dominate the zooplankton assemblages of alpine lakes. We studied the zooplankton community of Snowflake Lake, Banff National Park, from 1966 to 1995. H. arcticus was eliminated following stocking of the lake with trout in the 1960s. It failed to become reestablished after the disappearance of the fish population in the mid-1980s. Several species of rotifers and small-bodied crustaceans, species originally rare or absent from the plankton, became abundant following fish stocking and remained so after the fish population declined. In 1992, we reintroduced H. arcticus to Snowflake Lake. The H. arcticus population grew exponentially for 4 yr, but had not reached stable densities typical of unmanipulated alpine lakes by 1995. By 1994, however, even the small population of Hesperodiaptomus was beginning to suppress populations of rotifers, copepod nauplii, and large diatoms. Because H. arcticus is omnivorous, a simple model of cascading trophic interactions did not predict the Text Zooplankton Copepods Unknown Alpine Lake ENVELOPE(-129.182,-129.182,55.529,55.529) Canada Snowflake Lake ENVELOPE(-125.922,-125.922,53.834,53.834) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
Trout stocking in the mid-1960s eliminated the calanoid copepod Hesperodiaptomus arcticus and other largebodied crustaceans such as Gammarus lacustris, Daphnia middendorffiana, and Daphnia pulex from many alpine lakes in the Rocky Mountain Parks of Canada. H. arcticus frequently dominates the plankton communities of fishless lakes, preying on rotifers and nauplius larvae. Following the extirpation of H. arcticus, rotifers and small-bodied cyclopoid copepods dominate the zooplankton assemblages of alpine lakes. We studied the zooplankton community of Snowflake Lake, Banff National Park, from 1966 to 1995. H. arcticus was eliminated following stocking of the lake with trout in the 1960s. It failed to become reestablished after the disappearance of the fish population in the mid-1980s. Several species of rotifers and small-bodied crustaceans, species originally rare or absent from the plankton, became abundant following fish stocking and remained so after the fish population declined. In 1992, we reintroduced H. arcticus to Snowflake Lake. The H. arcticus population grew exponentially for 4 yr, but had not reached stable densities typical of unmanipulated alpine lakes by 1995. By 1994, however, even the small population of Hesperodiaptomus was beginning to suppress populations of rotifers, copepod nauplii, and large diatoms. Because H. arcticus is omnivorous, a simple model of cascading trophic interactions did not predict the |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
A. S. Mcnaught D. W. Schindler B. R. Parker A. J. Paul D. B. Donald M. Agbeti |
spellingShingle |
A. S. Mcnaught D. W. Schindler B. R. Parker A. J. Paul D. B. Donald M. Agbeti � 1999, by the American Society of Limnology and Oceanography, Inc. Restoration of the food web of an alpine lake following fish stocking |
author_facet |
A. S. Mcnaught D. W. Schindler B. R. Parker A. J. Paul D. B. Donald M. Agbeti |
author_sort |
A. S. Mcnaught |
title |
� 1999, by the American Society of Limnology and Oceanography, Inc. Restoration of the food web of an alpine lake following fish stocking |
title_short |
� 1999, by the American Society of Limnology and Oceanography, Inc. Restoration of the food web of an alpine lake following fish stocking |
title_full |
� 1999, by the American Society of Limnology and Oceanography, Inc. Restoration of the food web of an alpine lake following fish stocking |
title_fullStr |
� 1999, by the American Society of Limnology and Oceanography, Inc. Restoration of the food web of an alpine lake following fish stocking |
title_full_unstemmed |
� 1999, by the American Society of Limnology and Oceanography, Inc. Restoration of the food web of an alpine lake following fish stocking |
title_sort |
� 1999, by the american society of limnology and oceanography, inc. restoration of the food web of an alpine lake following fish stocking |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.419.6455 http://www.aslo.org/lo/toc/vol_44/issue_1/0127.pdf |
long_lat |
ENVELOPE(-129.182,-129.182,55.529,55.529) ENVELOPE(-125.922,-125.922,53.834,53.834) |
geographic |
Alpine Lake Canada Snowflake Lake |
geographic_facet |
Alpine Lake Canada Snowflake Lake |
genre |
Zooplankton Copepods |
genre_facet |
Zooplankton Copepods |
op_source |
http://www.aslo.org/lo/toc/vol_44/issue_1/0127.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.419.6455 http://www.aslo.org/lo/toc/vol_44/issue_1/0127.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766237619393396736 |