Assimilation of different food sources by the antarctic krill (Euphausia superba): implications for bentho-pelagic coupling in an Antarctic Coastal ecosystem
Aquatic Sciences Meeting, Aquatic Sciences: Global And Regional Perspectives - North Meets South, 22-27 February 2015, Granada, Spain
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Association for the Sciences of Limnology and Oceanography
2015-02-25
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dig-icm-es-10261-1361852022-03-09T09:39:51Z Assimilation of different food sources by the antarctic krill (Euphausia superba): implications for bentho-pelagic coupling in an Antarctic Coastal ecosystem Alurralde, Gastón Fuentes, Veronica Olariaga, Alejandro Orejas, Covadonga Movilla, Juan Ignacio Schloss, Irene R. Tatián, Marcos Aquatic Sciences Meeting, Aquatic Sciences: Global And Regional Perspectives - North Meets South, 22-27 February 2015, Granada, Spain Zooplankton faecal pellets are an important source of organic carbon, providing high energy pulses to the benthic realm. In shallow coastal environments, this pathway becomes very important since particles reach the bottom fast, so that faecal pellets degradation and recycling in the water column is low. However, the way in which zooplankton use and process food resources affects the biogeochemical fate of their faecal pellets and, consequently, benthic energy budgets. Potter Cove (King George Island, South Shetlands) is a small Antarctic fjord where a rich benthic fauna exists, in spite of generally low primary production; food sources sustaining the benthic production remain unclear. To better understand the link between plankton and benthos we selected the Antarctic krill, a key species in polar ecosystems, and an abundant ascidian species as key organisms to construct a simple organic matter pathway model. We tested a variety of potential food sources for krill in terms of assimilation efficiency, faecal pellets production and energetic quality to evaluate the contribution of the species to the organic carbon flux to the benthos in this Antarctic coastal ecosystem Peer Reviewed 2016-09-01T07:09:14Z 2016-09-01T07:09:14Z 2015-02-25 2016-09-01T07:09:15Z comunicación de congreso http://purl.org/coar/resource_type/c_5794 2015 Aquatic Sciences Meeting. Program Book: 114 (2015) http://hdl.handle.net/10261/136185 http://www.sgmeet.com/aslo/granada2015/program.asp Sí none Association for the Sciences of Limnology and Oceanography |
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Aquatic Sciences Meeting, Aquatic Sciences: Global And Regional Perspectives - North Meets South, 22-27 February 2015, Granada, Spain |
format |
comunicación de congreso |
author |
Alurralde, Gastón Fuentes, Veronica Olariaga, Alejandro Orejas, Covadonga Movilla, Juan Ignacio Schloss, Irene R. Tatián, Marcos |
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Alurralde, Gastón Fuentes, Veronica Olariaga, Alejandro Orejas, Covadonga Movilla, Juan Ignacio Schloss, Irene R. Tatián, Marcos Assimilation of different food sources by the antarctic krill (Euphausia superba): implications for bentho-pelagic coupling in an Antarctic Coastal ecosystem |
author_facet |
Alurralde, Gastón Fuentes, Veronica Olariaga, Alejandro Orejas, Covadonga Movilla, Juan Ignacio Schloss, Irene R. Tatián, Marcos |
author_sort |
Alurralde, Gastón |
title |
Assimilation of different food sources by the antarctic krill (Euphausia superba): implications for bentho-pelagic coupling in an Antarctic Coastal ecosystem |
title_short |
Assimilation of different food sources by the antarctic krill (Euphausia superba): implications for bentho-pelagic coupling in an Antarctic Coastal ecosystem |
title_full |
Assimilation of different food sources by the antarctic krill (Euphausia superba): implications for bentho-pelagic coupling in an Antarctic Coastal ecosystem |
title_fullStr |
Assimilation of different food sources by the antarctic krill (Euphausia superba): implications for bentho-pelagic coupling in an Antarctic Coastal ecosystem |
title_full_unstemmed |
Assimilation of different food sources by the antarctic krill (Euphausia superba): implications for bentho-pelagic coupling in an Antarctic Coastal ecosystem |
title_sort |
assimilation of different food sources by the antarctic krill (euphausia superba): implications for bentho-pelagic coupling in an antarctic coastal ecosystem |
publisher |
Association for the Sciences of Limnology and Oceanography |
publishDate |
2015-02-25 |
url |
http://hdl.handle.net/10261/136185 |
work_keys_str_mv |
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