KOSMOS 2020 Peru mesocosm study on ecosystem responses to different light and upwelling intensities: fatty acids in fish larvae


Fatty acids (FA) in fish larvae during the mesocosm experiment in the Peruvian upwelling system near Lima from February-April 2020. Light (ambient = high vs. reduced = low) was manipulated from the beginning (day 0) and upwelling (0 to 60% deep water addition) two weeks into the experiment (day 13). Larvae Peruvian anchovy (Engraulis ringens, 24 days-post-hatch) and chita (Anisotremus scapularis, 44 days-post-hatch) reared in the laboratory were introduced shortly after (day 19). All live fish were caught at the end of the experiment (day 36) by which time most had reached the late larval or early juvenile stage. Whole fish were freeze dried and their FA content and composition determined by gas chromatography. Stomachs had been removed prior to analysis to excluded prey FAs, while all other organs were included. Methodological details in Goldenberg et al. and Thielecke et al. (manuscripts in progress).

DOI https://doi.pangaea.de/10.1594/PANGAEA.967058
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.967058
Creator Dorssers, Scott; Sswat, Michael ORCID logo; Goldenberg, Silvan Urs ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference Federal Ministry of Education and Research https://doi.org/10.13039/501100002347 Crossref Funder ID 03F0813A https://foerderportal.bund.de/foekat/jsp/SucheAction.do?actionMode=view&fkz=03F0813A Küstennahe Auftriebsgebiete CUSCO: Auswirkungen geänderter Auftriebsintensitäten auf Struktur, Funktion und Produktivität pelagischer Nahrungsnetze im peruanischen Humboldt-Auftriebsgebiet; Horizon 2020 https://doi.org/10.13039/501100007601 Crossref Funder ID 731065 https://cordis.europa.eu/project/id/731065 Network of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Resource Type Dataset
Format text/tab-separated-values
Size 8280 data points
Discipline Earth System Research
Spatial Coverage (-77.236W, -12.056S, -77.235E, -12.055N)
Temporal Coverage Begin 2020-03-17T00:00:00Z
Temporal Coverage End 2020-04-03T00:00:00Z