KOSMOS 2020 Peru mesocosm study on ecosystem responses to different light and upwelling intensities: d15N and trophic level for fish, meso-zooplankton and particulate organic matter
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| Autori principali: | , , , |
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2024
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| _version_ | 1867171044193730560 |
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| author | Goldenberg, Silvan Urs Sswat, Michael Kittu, Leila Spisla, Carsten |
| author_facet | Goldenberg, Silvan Urs Sswat, Michael Kittu, Leila Spisla, Carsten |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Trophic structure of plankton communities 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, 22 days-post-hatch) and chita (Anisotremus scapularis, 44 days-post-hatch) reared in the laboratory were introduced shortly after (day 19). Meso-zooplankton were sampled with small nets at several points in time and the fish once with a large net at the end of the experiment (day 36). Groups of whole meso-zooplankton individuals and muscle tissue of single fish individuals were analysed for C, N and δ15N. Most fish had reached the late larval or early juvenile stage by that time. Particulate organic matter was monitored throughout the entire experiment in 2-day intervals. Trophic level of fish and zooplankton was approximated using particulate organic matter corrected for its heterotrophic component as autotroph baseline and a discrimination factor of 3.4. Methodological details in Goldenberg et al. and Thielecke et al. (manuscripts in progress). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_971267 |
| institution | PANGAEA |
| language | en |
| publishDate | 2024 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | KOSMOS 2020 Peru mesocosm study on ecosystem responses to different light and upwelling intensities: d15N and trophic level for fish, meso-zooplankton and particulate organic matter Goldenberg, Silvan Urs Sswat, Michael Kittu, Leila Spisla, Carsten AQUACOSM; Calculated; Carbon; Carbon/Nitrogen ratio; Carbon content per individual; chita; Coastal Upwelling System in a Changing Ocean; CUSCO; DATE/TIME; Day of experiment; Dry mass; Eastern Boundary Upwelling systems; Event label; Fish, standard length; fish larvae; Humboldt Current System; KOSMOS; KOSMOS_2020; KOSMOS_2020_Mesocosm-M1; KOSMOS_2020_Mesocosm-M2; KOSMOS_2020_Mesocosm-M3; KOSMOS_2020_Mesocosm-M4; KOSMOS_2020_Mesocosm-M5; KOSMOS_2020_Mesocosm-M6; KOSMOS_2020_Mesocosm-M7; KOSMOS_2020_Mesocosm-M8; KOSMOS_2020_Mesocosm-M9; KOSMOS Peru; Measured; MESO; mesocosm experiment; Mesocosm experiment; Mesocosm label; Network of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean; Nitrogen; Nitrogen content per individual; Number of individuals; Organisms; Peruvian anchovy; plankton food web; Sample type; Size group description; Taxon/taxa, unique identification; Taxon/taxa, unique identification (Semantic URI); Taxon/taxa, unique identification (URI); Treatment; Treatment: light condition; trophic level; Trophic level; Type of study; Wet mass; δ15N Trophic structure of plankton communities 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, 22 days-post-hatch) and chita (Anisotremus scapularis, 44 days-post-hatch) reared in the laboratory were introduced shortly after (day 19). Meso-zooplankton were sampled with small nets at several points in time and the fish once with a large net at the end of the experiment (day 36). Groups of whole meso-zooplankton individuals and muscle tissue of single fish individuals were analysed for C, N and δ15N. Most fish had reached the late larval or early juvenile stage by that time. Particulate organic matter was monitored throughout the entire experiment in 2-day intervals. Trophic level of fish and zooplankton was approximated using particulate organic matter corrected for its heterotrophic component as autotroph baseline and a discrimination factor of 3.4. Methodological details in Goldenberg et al. and Thielecke et al. (manuscripts in progress). |
| title | KOSMOS 2020 Peru mesocosm study on ecosystem responses to different light and upwelling intensities: d15N and trophic level for fish, meso-zooplankton and particulate organic matter |
| topic | AQUACOSM; Calculated; Carbon; Carbon/Nitrogen ratio; Carbon content per individual; chita; Coastal Upwelling System in a Changing Ocean; CUSCO; DATE/TIME; Day of experiment; Dry mass; Eastern Boundary Upwelling systems; Event label; Fish, standard length; fish larvae; Humboldt Current System; KOSMOS; KOSMOS_2020; KOSMOS_2020_Mesocosm-M1; KOSMOS_2020_Mesocosm-M2; KOSMOS_2020_Mesocosm-M3; KOSMOS_2020_Mesocosm-M4; KOSMOS_2020_Mesocosm-M5; KOSMOS_2020_Mesocosm-M6; KOSMOS_2020_Mesocosm-M7; KOSMOS_2020_Mesocosm-M8; KOSMOS_2020_Mesocosm-M9; KOSMOS Peru; Measured; MESO; mesocosm experiment; Mesocosm experiment; Mesocosm label; Network of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean; Nitrogen; Nitrogen content per individual; Number of individuals; Organisms; Peruvian anchovy; plankton food web; Sample type; Size group description; Taxon/taxa, unique identification; Taxon/taxa, unique identification (Semantic URI); Taxon/taxa, unique identification (URI); Treatment; Treatment: light condition; trophic level; Trophic level; Type of study; Wet mass; δ15N |
| url | https://doi.org/10.1594/PANGAEA.971267 |