PANGAEA_967724 Predator-prey interactions between the heterotrophic protist Polykrikos kofoidii and prey mixtures of three Alexandrium strains (A. catenella, A. limii, A. pseudogonyaulax) Möller, Kristof; Tillmann, Urban; Krock, Bernd; Koch, Florian; Meunier, Cédric Léo Predator-prey interactions between the heterotrophic protist Polykrikos kofoidii and prey mixtures of three Alexandrium strains (A. catenella, A. limii, A. pseudogonyaulax) 2024-08-27 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.967724 Investigator Kristof Möller kristof-moeller@outlook.de Earth Science Type of study Date/time start, experiment Date/time end, experiment Incubation duration Incubation volume Replicate Species, unique identification, predator Species, unique identification, predator (URI) Species, unique identification, predator (Semantic URI) Treatment: prey Species, unique identification, prey Alexandrium pseudogonyaulax, strain Species, unique identification, prey (URI) Species, unique identification, prey (Semantic URI) Alexandrium, strain Predator, ingestion rate of Alexandrium pseudogonyaulax cells per individual Predator, ingestion rate of Alexandrium catenella cells per individual Predator, ingestion rate of Alexandrium limii cells per individual geoscientificInformation A. catenella isolated from Scottish North Sea A. limii isolated from Shioya Bay, Okinawa A. pseudogonyaulax isolated from Limfjord Alexandrium sp. Goniodomin A Laboratory experiment Microzooplankton grazing Multiple investigations phycotoxins predator-prey dynamics protists T-AC-N T-AL-N T-AP-N Bottle incubation Microwell plate incubation Visual identification Visual identification (VID) of Formalin preserved and CMAC labelled samples 1999-07-01 2020-08-17 Complete 26.67 56.63 1.71 128.12 unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 378 data points text/tab-separated-values Möller, Kristof; Tillmann, Urban; Pöchhacker, Magdalena; Varga, Elisabeth; Krock, Bernd; Porreca, Francesco; Koch, Florian; Harris, Thomas M; Meunier, Cédric Léo (2024): Toxic effects of the emerging Alexandrium pseudogonyaulax (Dinophyceae) on multiple trophic levels of the pelagic food web. Harmful Algae, 102705, https://doi.org/10.1016/j.hal.2024.102705

The ingestion rates of the heterotrophic protist Polykrikos kofoidii feeding on three different species of Alexandrium were determined by means of incubation experiments in well-plates. In this experiment P. kofoidii was subjected to prey mixtures consisting of A. pseudogonyaulax (strain L4-B9) and A. catenella (strain Alex 5) or A. limii (strain Atay99Shio-02), whereby one prey was dyed with the fluorescent dye CMAC. The dye had no influence on the feeding behaviour of P. kofoidii and thus dye combinations of the same prey mixtures were combined. This dataset contains all data collected within this experiment including cell counts and ingested prey cells of P. kofoidii. The experiments were carried out on January 18, 2023 in the laboratories at the Alfred-Wegener-Institute in Bremerhaven, Germany. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.967724"!

https://doi.org/10.1016/j.hal.2024.102705 Toxic effects of the emerging Alexandrium pseudogonyaulax (Dinophyceae) on multiple trophic levels of the pelagic food web PANGAEA_967725 DIF 9.4 2024-08-27 2026-04-30