Seasonality of zooplankton active flux in the Canary Current System during COCA I and COCA II cruises in 2002 and 2003

DOI

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).

Identifier
DOI https://doi.org/10.1594/PANGAEA.965910
Related Identifier References https://doi.org/10.1016/S0021-9258(19)52451-6
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.965910
Provenance
Creator Hernández-León, Santiago ORCID logo; Sarmiento-Lezcano, Airam Nauzet ORCID logo; Couret, María (ORCID: 0000-0003-0501-376X); Armengol, Laia; Medina-Suárez, Ione ORCID logo; Fatira, Effrosyni; Tuset, Victor M ORCID logo; Limam, Abdallahi; Sánchez-Díez de la Lastra, Antonio; Díaz-Pérez, Javier ORCID logo; Landeira, José María ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference Agencia Canaria de Investigación, Innovación y Sociedad de la Información https://doi.org/10.13039/501100007757 Crossref Funder ID TESIS2022010116 ; Gobierno de Canarias https://doi.org/10.13039/501100002993 Crossref Funder ID 32/39/2022-0923131539 Investigo program; Horizon 2020 https://doi.org/10.13039/501100007601 Crossref Funder ID 817578 https://doi.org/10.3030/817578 Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management; Horizon 2020 https://doi.org/10.13039/501100007601 Crossref Funder ID 817806 https://doi.org/10.3030/817806 Sustainable management of mesopelagic resources; Horizon Europe https://doi.org/10.13039/100018693 Crossref Funder ID 101090322 PLEASE; Spanish Ministry of Science, Innovation and Universities https://doi.org/10.13039/501100004837 Crossref Funder ID BEAGAL 18/ 00172 Beatriz Galindo; Spanish Ministry of Science, Innovation and Universities https://doi.org/10.13039/501100004837 Crossref Funder ID BES-2017-082540 ; Spanish Ministry of Science, Innovation and Universities https://doi.org/10.13039/501100004837 Crossref Funder ID PID2020-118118RB-100 DisEntangling Seasonality of Active Carbon Flux In The Ocean (DESAFIO); Spanish Ministry of Science, Innovation and Universities https://doi.org/10.13039/501100004837 Crossref Funder ID REN2000 1471-CO2-O1-MAR CarbOn flux at the Canary Atlantic region (COCA)
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 6153 data points
Discipline Earth System Research
Spatial Coverage (-26.000W, 20.990S, -14.440E, 27.510N)
Temporal Coverage Begin 2002-09-11T00:00:00Z
Temporal Coverage End 2003-06-07T00:00:00Z