Benthic-pelagic coupling and trophic relationships in northern Baltic Sea food webs
Understanding marine ecosystem structure and functioning is crucial in supporting sustainable management of natural resources and monitoring the health of marine ecosystems. The current study utilized stable isotope (SI) mixing models and trophic position models to examine energy flow, trophic relat...
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ftunivtampere:oai:trepo.tuni.fi:10024/128100 2024-01-07T09:46:11+01:00 Benthic-pelagic coupling and trophic relationships in northern Baltic Sea food webs Kiljunen, Mikko Peltonen, Heikki Lehtiniemi, Maiju Uusitalo, Laura Sinisalo, Tuula Norkko, Joanna Kunnasranta, Mervi Torniainen, Jyrki Rissanen, Antti J. Karjalainen, Juha Tampere University Materials Science and Environmental Engineering 2020-08 17 675532 fulltext https://trepo.tuni.fi/handle/10024/128100 https://doi.org/10.1002/lno.11413 en eng 8 65 0024-3590 ORCID: /0000-0002-5678-3361/work/100074984 https://trepo.tuni.fi/handle/10024/128100 URN:NBN:fi:tuni-202102152083 doi:10.1002/lno.11413 cc by 4.0 openAccess 219 Environmental biotechnology article 2020 ftunivtampere https://doi.org/10.1002/lno.11413 2023-12-14T00:06:53Z Understanding marine ecosystem structure and functioning is crucial in supporting sustainable management of natural resources and monitoring the health of marine ecosystems. The current study utilized stable isotope (SI) mixing models and trophic position models to examine energy flow, trophic relationships, and benthic-pelagic coupling between food web components. Roughly 1900 samples from different trophic levels in the food web, collected during 2001-2010 from four northern and central sub-basins of the Baltic Sea, were analyzed for SI ratios of carbon and nitrogen. Trophic structure of the food webs among the sub-basins was consistent, but there were differences between the proportions of energy in different trophic levels that had originated from the benthic habitat. Mysids and amphipods served as important links between the benthic and pelagic ecosystems. Much (35-65%) of their energy originated from the benthic zone but was transferred to higher trophic levels in the pelagic food web by consumption by herring (Clupea harengus). One percent to twenty-four percent of the energy consumption of apex seal predators (Halichoerus grypus and Pusa hispida) and predatory fish (Salmo salar) was derived from benthic zone. Diets of mysids and amphipods differed, although some overlap in their dietary niches was observed. The food web in the Gulf of Finland was more influenced by the benthic subsystem than food webs in the other sub-basins. The baseline levels of delta C-13 and delta N-15 differed between sub-basins of the Baltic Sea, indicating differences in the input of organic matter and nutrients to each sub-basin. Peer reviewed Article in Journal/Newspaper Pusa hispida Salmo salar Tampere University: Trepo Limnology and Oceanography 65 8 1706 1722 |
institution |
Open Polar |
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Tampere University: Trepo |
op_collection_id |
ftunivtampere |
language |
English |
topic |
219 Environmental biotechnology |
spellingShingle |
219 Environmental biotechnology Kiljunen, Mikko Peltonen, Heikki Lehtiniemi, Maiju Uusitalo, Laura Sinisalo, Tuula Norkko, Joanna Kunnasranta, Mervi Torniainen, Jyrki Rissanen, Antti J. Karjalainen, Juha Benthic-pelagic coupling and trophic relationships in northern Baltic Sea food webs |
topic_facet |
219 Environmental biotechnology |
description |
Understanding marine ecosystem structure and functioning is crucial in supporting sustainable management of natural resources and monitoring the health of marine ecosystems. The current study utilized stable isotope (SI) mixing models and trophic position models to examine energy flow, trophic relationships, and benthic-pelagic coupling between food web components. Roughly 1900 samples from different trophic levels in the food web, collected during 2001-2010 from four northern and central sub-basins of the Baltic Sea, were analyzed for SI ratios of carbon and nitrogen. Trophic structure of the food webs among the sub-basins was consistent, but there were differences between the proportions of energy in different trophic levels that had originated from the benthic habitat. Mysids and amphipods served as important links between the benthic and pelagic ecosystems. Much (35-65%) of their energy originated from the benthic zone but was transferred to higher trophic levels in the pelagic food web by consumption by herring (Clupea harengus). One percent to twenty-four percent of the energy consumption of apex seal predators (Halichoerus grypus and Pusa hispida) and predatory fish (Salmo salar) was derived from benthic zone. Diets of mysids and amphipods differed, although some overlap in their dietary niches was observed. The food web in the Gulf of Finland was more influenced by the benthic subsystem than food webs in the other sub-basins. The baseline levels of delta C-13 and delta N-15 differed between sub-basins of the Baltic Sea, indicating differences in the input of organic matter and nutrients to each sub-basin. Peer reviewed |
author2 |
Tampere University Materials Science and Environmental Engineering |
format |
Article in Journal/Newspaper |
author |
Kiljunen, Mikko Peltonen, Heikki Lehtiniemi, Maiju Uusitalo, Laura Sinisalo, Tuula Norkko, Joanna Kunnasranta, Mervi Torniainen, Jyrki Rissanen, Antti J. Karjalainen, Juha |
author_facet |
Kiljunen, Mikko Peltonen, Heikki Lehtiniemi, Maiju Uusitalo, Laura Sinisalo, Tuula Norkko, Joanna Kunnasranta, Mervi Torniainen, Jyrki Rissanen, Antti J. Karjalainen, Juha |
author_sort |
Kiljunen, Mikko |
title |
Benthic-pelagic coupling and trophic relationships in northern Baltic Sea food webs |
title_short |
Benthic-pelagic coupling and trophic relationships in northern Baltic Sea food webs |
title_full |
Benthic-pelagic coupling and trophic relationships in northern Baltic Sea food webs |
title_fullStr |
Benthic-pelagic coupling and trophic relationships in northern Baltic Sea food webs |
title_full_unstemmed |
Benthic-pelagic coupling and trophic relationships in northern Baltic Sea food webs |
title_sort |
benthic-pelagic coupling and trophic relationships in northern baltic sea food webs |
publishDate |
2020 |
url |
https://trepo.tuni.fi/handle/10024/128100 https://doi.org/10.1002/lno.11413 |
genre |
Pusa hispida Salmo salar |
genre_facet |
Pusa hispida Salmo salar |
op_relation |
8 65 0024-3590 ORCID: /0000-0002-5678-3361/work/100074984 https://trepo.tuni.fi/handle/10024/128100 URN:NBN:fi:tuni-202102152083 doi:10.1002/lno.11413 |
op_rights |
cc by 4.0 openAccess |
op_doi |
https://doi.org/10.1002/lno.11413 |
container_title |
Limnology and Oceanography |
container_volume |
65 |
container_issue |
8 |
container_start_page |
1706 |
op_container_end_page |
1722 |
_version_ |
1787427895154573312 |