Particulate matter flux interception in oceanic mesoscale eddies by the polychaete Poeobius sp
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| Format: | Dataset Open Access |
| Sprache: | en |
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2018
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| author | Christiansen, Svenja Hoving, Henk-Jan T Schütte, Florian Hauss, Helena Karstensen, Johannes Körtzinger, Arne Schröder, Simon-Martin Stemmann, Lars Christiansen, Bernd Picheral, Marc Brandt, Peter Robison, Bruce H Koch, Reinhard Kiko, Rainer |
| author_facet | Christiansen, Svenja Hoving, Henk-Jan T Schütte, Florian Hauss, Helena Karstensen, Johannes Körtzinger, Arne Schröder, Simon-Martin Stemmann, Lars Christiansen, Bernd Picheral, Marc Brandt, Peter Robison, Bruce H Koch, Reinhard Kiko, Rainer |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Gelatinous zooplankton hold key functions in the ocean and have been shown to significantly influence the transport of organic carbon to the deep sea. We discovered a gelatinous, flux‐feeding polychaete of the genus Poeobius in very high abundances in a mesoscale eddy in the tropical Atlantic Ocean, where it co‐occurred with extremely low particle concentrations. Subsequent analysis of an extensive in situ imaging dataset revealed that Poeobius sp. occurred sporadically between 5°S–20°N and 16°W–46°W in the upper 1000 m. Abundances were significantly elevated and the depth distribution compressed in anticyclonic modewater eddies (ACMEs). In two ACMEs, high Poeobius sp. abundances were associated with strongly reduced particle concentrations and fluxes in the layers directly below the polychaete. We discuss possible reasons for the elevated abundances of Poeobius sp. in ACMEs and provide estimations showing that a single zooplankton species can completely intercept the downward particle flux by feeding with their mucous nets, thereby substantially altering the biogeochemical setting within the eddy. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_888952 |
| institution | PANGAEA |
| language | en |
| publishDate | 2018 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Particulate matter flux interception in oceanic mesoscale eddies by the polychaete Poeobius sp Christiansen, Svenja Hoving, Henk-Jan T Schütte, Florian Hauss, Helena Karstensen, Johannes Körtzinger, Arne Schröder, Simon-Martin Stemmann, Lars Christiansen, Bernd Picheral, Marc Brandt, Peter Robison, Bruce H Koch, Reinhard Kiko, Rainer Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754 Gelatinous zooplankton hold key functions in the ocean and have been shown to significantly influence the transport of organic carbon to the deep sea. We discovered a gelatinous, flux‐feeding polychaete of the genus Poeobius in very high abundances in a mesoscale eddy in the tropical Atlantic Ocean, where it co‐occurred with extremely low particle concentrations. Subsequent analysis of an extensive in situ imaging dataset revealed that Poeobius sp. occurred sporadically between 5°S–20°N and 16°W–46°W in the upper 1000 m. Abundances were significantly elevated and the depth distribution compressed in anticyclonic modewater eddies (ACMEs). In two ACMEs, high Poeobius sp. abundances were associated with strongly reduced particle concentrations and fluxes in the layers directly below the polychaete. We discuss possible reasons for the elevated abundances of Poeobius sp. in ACMEs and provide estimations showing that a single zooplankton species can completely intercept the downward particle flux by feeding with their mucous nets, thereby substantially altering the biogeochemical setting within the eddy. |
| title | Particulate matter flux interception in oceanic mesoscale eddies by the polychaete Poeobius sp |
| topic | Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754 |
| url | https://doi.org/10.1594/PANGAEA.888952 |