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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2024
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| Accesso online: | https://doi.org/10.1594/PANGAEA.965910 |
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| author | Hernández-León, Santiago Sarmiento-Lezcano, Airam Nauzet Couret, María Armengol, Laia Medina-Suárez, Ione Fatira, Effrosyni Tuset, Victor M Limam, Abdallahi Sánchez-Díez de la Lastra, Antonio Díaz-Pérez, Javier Landeira, José María |
| author_facet | Hernández-León, Santiago Sarmiento-Lezcano, Airam Nauzet Couret, María Armengol, Laia Medina-Suárez, Ione Fatira, Effrosyni Tuset, Victor M Limam, Abdallahi Sánchez-Díez de la Lastra, Antonio Díaz-Pérez, Javier Landeira, José María |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The biological carbon pump is the mechanism by which the organic matter is exported or sequestered in the deep ocean from years to millennia. This downward transport is performed through physical transport of dissolved and particulate organic carbon, the sinking of particles or passive flux, and the active transport by diel and seasonal vertical migrants. The latter mechanism is still poorly studied, and seasonality of this active flux is even less known. We studied active flux by zooplankton in two transects from the productive coastal transition zone off Northwest Africa to the warm oligotrophic ocean. We estimated the metabolic activity from the surface to 900 m depth using the enzymatic activity of the electron transfer system (ETS) as a proxy for respiration. We found zooplankton ETS activity significantly higher during spring than during fall in the mesopelagic zone. Even at similar migrant biomass values, respiratory flux was higher during spring compared to fall due to the important differences in respiration rates in the mesopelagic zone. These striking differences of respiration rates in the mesopelagic zone was mainly due to the smaller body size of zooplankton during the productive season (spring). These results should be considered in models of active carbon export in the ocean. Here, we provide the data compiled during both cruises (spring and fall). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_965910 |
| institution | PANGAEA |
| language | en |
| publishDate | 2024 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Seasonality of zooplankton active flux in the Canary Current System during COCA I and COCA II cruises in 2002 and 2003 Hernández-León, Santiago Sarmiento-Lezcano, Airam Nauzet Couret, María Armengol, Laia Medina-Suárez, Ione Fatira, Effrosyni Tuset, Victor M Limam, Abdallahi Sánchez-Díez de la Lastra, Antonio Díaz-Pérez, Javier Landeira, José María 02; 08; 14; 22; 29HE20020910; 29HE20030520; 32; 42; 48; 52; 60; 66; biological carbon pump; Calculated; COCA-1; COCA-1_02-4; COCA-1_08-4; COCA-1_14-4; COCA-1_22-4; COCA-1_32-4; COCA-1_42-4; COCA-1_48-4; COCA-1_52-4; COCA-1_60-4; COCA-1_66-4; COCA-2; COCA-2_02-4; COCA-2_08-4; COCA-2_14-4; COCA-2_22-4; COCA-2_42-4; COCA-2_48-4; COCA-2_52-4; COCA-2_60-4; COCA-2_66-4; Date/Time of event; DEPTH, water; Electron transport system activity of oxygen per mass; ETS activity; Event label; Hespérides; Latitude of event; LHPR; Longitude of event; OPC; Optical plankton counter, Focal Technologies Inc., OPC-1L; Optional event label; Plankton recorder, Longhurst-Hardy; respiration flux; Spectrophotometry according to Lowry et al. (1951) [modified after Rutter (1967)]; SUMMER; Sustainable Management of Mesopelagic Resources; Tetrazolium reduction technique according to Packard (1971); Time of day; TRIATLAS; Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management; Zooplankton; Zooplankton, biomass as protein; Zooplankton, biomass as protein per individual The biological carbon pump is the mechanism by which the organic matter is exported or sequestered in the deep ocean from years to millennia. This downward transport is performed through physical transport of dissolved and particulate organic carbon, the sinking of particles or passive flux, and the active transport by diel and seasonal vertical migrants. The latter mechanism is still poorly studied, and seasonality of this active flux is even less known. We studied active flux by zooplankton in two transects from the productive coastal transition zone off Northwest Africa to the warm oligotrophic ocean. We estimated the metabolic activity from the surface to 900 m depth using the enzymatic activity of the electron transfer system (ETS) as a proxy for respiration. We found zooplankton ETS activity significantly higher during spring than during fall in the mesopelagic zone. Even at similar migrant biomass values, respiratory flux was higher during spring compared to fall due to the important differences in respiration rates in the mesopelagic zone. These striking differences of respiration rates in the mesopelagic zone was mainly due to the smaller body size of zooplankton during the productive season (spring). These results should be considered in models of active carbon export in the ocean. Here, we provide the data compiled during both cruises (spring and fall). |
| title | Seasonality of zooplankton active flux in the Canary Current System during COCA I and COCA II cruises in 2002 and 2003 |
| topic | 02; 08; 14; 22; 29HE20020910; 29HE20030520; 32; 42; 48; 52; 60; 66; biological carbon pump; Calculated; COCA-1; COCA-1_02-4; COCA-1_08-4; COCA-1_14-4; COCA-1_22-4; COCA-1_32-4; COCA-1_42-4; COCA-1_48-4; COCA-1_52-4; COCA-1_60-4; COCA-1_66-4; COCA-2; COCA-2_02-4; COCA-2_08-4; COCA-2_14-4; COCA-2_22-4; COCA-2_42-4; COCA-2_48-4; COCA-2_52-4; COCA-2_60-4; COCA-2_66-4; Date/Time of event; DEPTH, water; Electron transport system activity of oxygen per mass; ETS activity; Event label; Hespérides; Latitude of event; LHPR; Longitude of event; OPC; Optical plankton counter, Focal Technologies Inc., OPC-1L; Optional event label; Plankton recorder, Longhurst-Hardy; respiration flux; Spectrophotometry according to Lowry et al. (1951) [modified after Rutter (1967)]; SUMMER; Sustainable Management of Mesopelagic Resources; Tetrazolium reduction technique according to Packard (1971); Time of day; TRIATLAS; Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management; Zooplankton; Zooplankton, biomass as protein; Zooplankton, biomass as protein per individual |
| url | https://doi.org/10.1594/PANGAEA.965910 |