KOSMOS 2017 Peru Side Experiment: nutrients, phytoplankton abundances, enzyme rates, photophysiology

• Main Authors: Paul, Allanah Joy, Arístegui, Javier, Bach, Lennart Thomas, Hernández-Hernández, Nauzet, Piiparinen, Jonna, Riebesell, Ulf, Spilling, Kristian
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Absorption coefficient; colored dissolved organic matter 250 nm/365 nm; ratio; colored dissolved organic matter at 254 nm; colored dissolved organic matter at 325 nm; AQUACOSM; Calculated; CDOM; Chlorophyll a; Climate - Biogeochemistry Interactions in the Tropical Ocean; Continuous flow analyser; colorimetric determination; Cryptophytes; DATE/TIME; Day of experiment; eastern tropical South Pacific Ocean; Enzymatic assay; enzyme activity; Excess phosphate; Flow cytometry; Fluorometer; fast repetition rate; Fluorometric; FRRF; KOSMOS; KOSMOS_2017; KOSMOS_2017_Peru; KOSMOS Peru; Leucine aminopeptidase activity; Maximum photochemical quantum yield of photosystem II; MESO; Mesocosm experiment; Microphytoplankton; Nanoplankton; Network of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean; Nitrate; Nitrate and Nitrite; Nitrite; Nitrogen; inorganic; dissolved/Phosphorus; dissolved ratio; Nutrient consumption ratio; nutrients; Phosphate; Phytoplankton; Arctic; Pacific
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.941138; https://doi.org/10.1594/PANGAEA.941138

This data was collected during an short-term incubation experiment in March 2017 that investigated the response of a surface plankton community to upwelling. This experiment was carried in the framework of the SFB754-funded KOSMOS mesocosm study that took place in La Punta, Callao, Peru between February-April 2017. A total of six different treatments were used to disentangle chemical and biological characteristics of deep water that influence surface plankton blooms: 2 different deep water sources with different nutrient concentrations; 3 treatments to distinguish the effects of inorganic nutrients, organic nutrients and deep water microbial populations. Measured variables include inorganic nutrient concentrations, phytoplankton abundances, Chlorophyll a, cDOM, and rates of leucine aminopeptidase activity.