Lake Michigan offshore ecosystem structure and food web changes from 1987 to 2008
Ecosystems undergo dynamic changes owing to species invasions, fisheries management decisions, landscape modifications, and nutrient inputs. At Lake Michigan, new invaders (e.g., dreissenid mussels (Dreissena spp.), spiny water flea (Bythotrephes longimanus), round goby (Neogobius melanostomus)) hav...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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crcansciencepubl:10.1139/cjfas-2013-0514 2024-05-12T08:02:05+00:00 Lake Michigan offshore ecosystem structure and food web changes from 1987 to 2008 Rogers, Mark W. Bunnell, David B. Madenjian, Charles P. Warner, David M. Rose, Kenneth 2014 http://dx.doi.org/10.1139/cjfas-2013-0514 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2013-0514 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2013-0514 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 71, issue 7, page 1072-1086 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2014 crcansciencepubl https://doi.org/10.1139/cjfas-2013-0514 2024-04-18T06:54:52Z Ecosystems undergo dynamic changes owing to species invasions, fisheries management decisions, landscape modifications, and nutrient inputs. At Lake Michigan, new invaders (e.g., dreissenid mussels (Dreissena spp.), spiny water flea (Bythotrephes longimanus), round goby (Neogobius melanostomus)) have proliferated and altered energy transfer pathways, while nutrient concentrations and stocking rates to support fisheries have changed. We developed an ecosystem model to describe food web structure in 1987 and ran simulations through 2008 to evaluate changes in biomass of functional groups, predator consumption, and effects of recently invading species. Keystone functional groups from 1987 were identified as Mysis, burbot (Lota lota), phytoplankton, alewife (Alosa pseudoharengus), nonpredatory cladocerans, and Chinook salmon (Oncorhynchus tshawytscha). Simulations predicted biomass reductions across all trophic levels and predicted biomasses fit observed trends for most functional groups. The effects of invasive species (e.g., dreissenid grazing) increased across simulation years, but were difficult to disentangle from other changes (e.g., declining offshore nutrient concentrations). In total, our model effectively represented recent changes to the Lake Michigan ecosystem and provides an ecosystem-based tool for exploring future resource management scenarios. Article in Journal/Newspaper Burbot Lota lota lota Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 71 7 1072 1086 |
institution |
Open Polar |
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Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Rogers, Mark W. Bunnell, David B. Madenjian, Charles P. Warner, David M. Lake Michigan offshore ecosystem structure and food web changes from 1987 to 2008 |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Ecosystems undergo dynamic changes owing to species invasions, fisheries management decisions, landscape modifications, and nutrient inputs. At Lake Michigan, new invaders (e.g., dreissenid mussels (Dreissena spp.), spiny water flea (Bythotrephes longimanus), round goby (Neogobius melanostomus)) have proliferated and altered energy transfer pathways, while nutrient concentrations and stocking rates to support fisheries have changed. We developed an ecosystem model to describe food web structure in 1987 and ran simulations through 2008 to evaluate changes in biomass of functional groups, predator consumption, and effects of recently invading species. Keystone functional groups from 1987 were identified as Mysis, burbot (Lota lota), phytoplankton, alewife (Alosa pseudoharengus), nonpredatory cladocerans, and Chinook salmon (Oncorhynchus tshawytscha). Simulations predicted biomass reductions across all trophic levels and predicted biomasses fit observed trends for most functional groups. The effects of invasive species (e.g., dreissenid grazing) increased across simulation years, but were difficult to disentangle from other changes (e.g., declining offshore nutrient concentrations). In total, our model effectively represented recent changes to the Lake Michigan ecosystem and provides an ecosystem-based tool for exploring future resource management scenarios. |
author2 |
Rose, Kenneth |
format |
Article in Journal/Newspaper |
author |
Rogers, Mark W. Bunnell, David B. Madenjian, Charles P. Warner, David M. |
author_facet |
Rogers, Mark W. Bunnell, David B. Madenjian, Charles P. Warner, David M. |
author_sort |
Rogers, Mark W. |
title |
Lake Michigan offshore ecosystem structure and food web changes from 1987 to 2008 |
title_short |
Lake Michigan offshore ecosystem structure and food web changes from 1987 to 2008 |
title_full |
Lake Michigan offshore ecosystem structure and food web changes from 1987 to 2008 |
title_fullStr |
Lake Michigan offshore ecosystem structure and food web changes from 1987 to 2008 |
title_full_unstemmed |
Lake Michigan offshore ecosystem structure and food web changes from 1987 to 2008 |
title_sort |
lake michigan offshore ecosystem structure and food web changes from 1987 to 2008 |
publisher |
Canadian Science Publishing |
publishDate |
2014 |
url |
http://dx.doi.org/10.1139/cjfas-2013-0514 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2013-0514 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2013-0514 |
genre |
Burbot Lota lota lota |
genre_facet |
Burbot Lota lota lota |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 71, issue 7, page 1072-1086 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2013-0514 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
71 |
container_issue |
7 |
container_start_page |
1072 |
op_container_end_page |
1086 |
_version_ |
1798844166040453120 |