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| griddap | Subset | tabledap | Make A Graph | wms | files | Accessible | Title | Summary | FGDC | ISO 19115 | Info | Background Info | RSS | Institution | Dataset ID | |
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| log in | [Microsphere counts from incubation chambers of Oikopleura dioica] - Microsphere counts from incubation chambers of Oikopleura dioica prior to and following feeding incubations for experiment with artificial microspheres with two functionalized surfaces in three sizes (Collaborative Proposal: Are all cell surfaces the same? The effects of particle surface property on predator-prey interactions in the microbial loop) | Cell surface properties can strongly mediate microbial interactions with predators in soil and host-pathogen systems. Yet, the role of microbial surface properties in avoiding or enhancing predation in the ocean remains a research frontier. Appendicularians are globally abundant marine suspension feeders that capture marine microorganisms in a complex mucous filtration system. We used artificial microspheres to test whether the surface properties of prey particles influenced selection by the appendicularian, O. dioica. Across microsphere sizes (0.5, 1, 2 and 3 µm) and concentrations (~103-106 particles ml-1), which were varied to represent realistic microbial communities, carboxylate- and amine-modified particles were handled differently by the appendicularians. The carboxylate-modified particles were enriched in the gut while the amine-modified particles were enriched in the mucous filters, leading to different particle fates. \nThis dataset includes incubation chamber concentrations at the beginning and end of feeding incubations.\n\ncdm_data_type = Other\nVARIABLES:\nIncubation (unitless)\nSample_Number (unitless)\nTi_Tf (unitless)\nC_0_5_um_ml (Count per grid)\nC_1_um_ml (Count per grid)\nC_2_um_ml (Count per grid)\nC_3_um_ml (Count per grid)\nA_0_5_um_ml (Count per grid)\nA_1_um_ml (Count per grid)\nA_2_um_ml (Count per grid)\nA_3_um_ml (Count per grid)\n | BCO-DMO | bcodmo_dataset_956298_v1 |