Response of zooplankton community succession and trophic links to simulated upwelling conditions during a mesocosm experiment in the coastal upwelling off Callao Bay (Peru) in austral summer 2017 (KOSMOS 2017 Peru mesocosm study)
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2022
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| _version_ | 1867168576001015808 |
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| author | Lischka, Silke Ayón, Patricia Pinedo Arteaga, Elda Luz Schukat, Anna Taucher, Jan Kiko, Rainer Hauss, Helena Dorschner, Sabrina Hagen, Wilhelm Segura-Noguera, Mariona |
| author_facet | Lischka, Silke Ayón, Patricia Pinedo Arteaga, Elda Luz Schukat, Anna Taucher, Jan Kiko, Rainer Hauss, Helena Dorschner, Sabrina Hagen, Wilhelm Segura-Noguera, Mariona |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Increasing upwelling intensity and shoaling of the oxygen minimum zone (OMZ) is projected for Eastern Boundary Upwelling Systems (EBUSs) under ocean warming which may have severe consequences for mesopelagic food webs, trophic transfer, and fish production also in the Humboldt Current Upwelling System (HUS). To improve our mechanistic understanding, from February 23, 2017 until April 14, 2017 we performed a 50 days mesocosm experiment in the northern HUS (off Callao Bay, Peru) and monitored the zooplankton development prior to and following a simulated upwelling event through the addition of deeper water of two different OMZ-influenced subsurface waters to four of in total eight mesocosms. To elucidate plankton dynamics and trophic relationships, we followed the temporal development of the mesozooplankton community in relation to that of phytoplankton, analyzed the fatty acid composition and gut fluorescence of dominant copepods, and determined the stable isotope (SI) and elemental composition (C:N) of dominant zooplankton taxa. Zooplankton samples were collected from the mesocosms over the entire experiment duration using an Apstein net (17 cm diameter, 100 µm mesh) to determine abundance and taxonomic composition of the zooplankton community, and to analyze fatty acid composition, gut fluorescence and elemental composition of dominant zooplankton. Furthermore, abundance and biomass of zooplankton groups was estimated from scanned ZooScan images. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_947833 |
| institution | PANGAEA |
| language | en |
| publishDate | 2022 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Response of zooplankton community succession and trophic links to simulated upwelling conditions during a mesocosm experiment in the coastal upwelling off Callao Bay (Peru) in austral summer 2017 (KOSMOS 2017 Peru mesocosm study) Lischka, Silke Ayón, Patricia Pinedo Arteaga, Elda Luz Schukat, Anna Taucher, Jan Kiko, Rainer Hauss, Helena Dorschner, Sabrina Hagen, Wilhelm Segura-Noguera, Mariona Abundance; Biomass; Climate - Biogeochemistry Interactions in the Tropical Ocean; Coastal Upwelling System in a Changing Ocean; CUSCO; Gut fluorescence; Humboldt Current System; KOSMOS_2017; KOSMOS_2017_Peru; KOSMOS Peru; Lipid; MESO; mesocosm experiment; Mesocosm experiment; Oxygen Minimum zone; SFB754; Stable isotopes; Zooplankton Increasing upwelling intensity and shoaling of the oxygen minimum zone (OMZ) is projected for Eastern Boundary Upwelling Systems (EBUSs) under ocean warming which may have severe consequences for mesopelagic food webs, trophic transfer, and fish production also in the Humboldt Current Upwelling System (HUS). To improve our mechanistic understanding, from February 23, 2017 until April 14, 2017 we performed a 50 days mesocosm experiment in the northern HUS (off Callao Bay, Peru) and monitored the zooplankton development prior to and following a simulated upwelling event through the addition of deeper water of two different OMZ-influenced subsurface waters to four of in total eight mesocosms. To elucidate plankton dynamics and trophic relationships, we followed the temporal development of the mesozooplankton community in relation to that of phytoplankton, analyzed the fatty acid composition and gut fluorescence of dominant copepods, and determined the stable isotope (SI) and elemental composition (C:N) of dominant zooplankton taxa. Zooplankton samples were collected from the mesocosms over the entire experiment duration using an Apstein net (17 cm diameter, 100 µm mesh) to determine abundance and taxonomic composition of the zooplankton community, and to analyze fatty acid composition, gut fluorescence and elemental composition of dominant zooplankton. Furthermore, abundance and biomass of zooplankton groups was estimated from scanned ZooScan images. |
| title | Response of zooplankton community succession and trophic links to simulated upwelling conditions during a mesocosm experiment in the coastal upwelling off Callao Bay (Peru) in austral summer 2017 (KOSMOS 2017 Peru mesocosm study) |
| topic | Abundance; Biomass; Climate - Biogeochemistry Interactions in the Tropical Ocean; Coastal Upwelling System in a Changing Ocean; CUSCO; Gut fluorescence; Humboldt Current System; KOSMOS_2017; KOSMOS_2017_Peru; KOSMOS Peru; Lipid; MESO; mesocosm experiment; Mesocosm experiment; Oxygen Minimum zone; SFB754; Stable isotopes; Zooplankton |
| url | https://doi.org/10.1594/PANGAEA.947833 |