Data_Sheet_1_The Roles of Suspension-Feeding and Flux-Feeding Zooplankton as Gatekeepers of Particle Flux Into the Mesopelagic Ocean in the Northeast Pacific.docx
Zooplankton are important consumers of sinking particles in the ocean’s twilight zone. However, the impact of different taxa depends on their feeding mode. In contrast to typical suspension-feeding zooplankton, flux-feeding taxa preferentially consume rapidly sinking particles that would otherwise p...
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Online Access: | https://doi.org/10.3389/fmars.2019.00397.s001 https://figshare.com/articles/Data_Sheet_1_The_Roles_of_Suspension-Feeding_and_Flux-Feeding_Zooplankton_as_Gatekeepers_of_Particle_Flux_Into_the_Mesopelagic_Ocean_in_the_Northeast_Pacific_docx/8865062 |
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ftfrontimediafig:oai:figshare.com:article/8865062 2023-05-15T17:08:03+02:00 Data_Sheet_1_The Roles of Suspension-Feeding and Flux-Feeding Zooplankton as Gatekeepers of Particle Flux Into the Mesopelagic Ocean in the Northeast Pacific.docx Michael R. Stukel Mark D. Ohman Thomas B. Kelly Tristan Biard 2019-07-12T15:56:43Z https://doi.org/10.3389/fmars.2019.00397.s001 https://figshare.com/articles/Data_Sheet_1_The_Roles_of_Suspension-Feeding_and_Flux-Feeding_Zooplankton_as_Gatekeepers_of_Particle_Flux_Into_the_Mesopelagic_Ocean_in_the_Northeast_Pacific_docx/8865062 unknown doi:10.3389/fmars.2019.00397.s001 https://figshare.com/articles/Data_Sheet_1_The_Roles_of_Suspension-Feeding_and_Flux-Feeding_Zooplankton_as_Gatekeepers_of_Particle_Flux_Into_the_Mesopelagic_Ocean_in_the_Northeast_Pacific_docx/8865062 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering biological pump carbon export remineralization length scale mesozooplankton ecology pteropods marine biogeochemistry sinking particles marine snow Dataset 2019 ftfrontimediafig https://doi.org/10.3389/fmars.2019.00397.s001 2019-07-17T23:03:36Z Zooplankton are important consumers of sinking particles in the ocean’s twilight zone. However, the impact of different taxa depends on their feeding mode. In contrast to typical suspension-feeding zooplankton, flux-feeding taxa preferentially consume rapidly sinking particles that would otherwise penetrate into the deep ocean. To quantify the potential impact of two flux-feeding zooplankton taxa [Aulosphaeridae (Rhizaria), and Limacina helicina (euthecosome pteropod)] and the total suspension-feeding zooplankton community, we measured depth-stratified abundances of these organisms during six cruises in the California Current Ecosystem. Using allometric–scaling relationships, we computed the percentage of carbon flux intercepted by flux feeders and suspension feeders. These estimates were compared to direct measurements of carbon flux attenuation (CFA) made using drifting sediment traps and 238 U– 234 Th disequilibrium. We found that CFA in the shallow twilight zone typically ranged from 500 to 1000 μmol organic C flux remineralized per 10-m vertical depth bin. This equated to approximately 6–10% of carbon flux remineralized/10 m. The two flux-feeding taxa considered in this study could account for a substantial proportion of this flux near the base of the euphotic zone. The mean flux attenuation attributable to Aulosphaeridae was 0.69%/10 m (median = 0.21%/10 m, interquartile range = 0.04–0.81%) at their depth of maximum abundance (∼100 m), which would equate to ∼10% of total flux attenuation in this depth range. The maximum flux attenuation attributable to Aulosphaeridae reached 4.2%/10 m when these protists were most abundant. L. helicina, meanwhile, could intercept 0.45–1.6% of carbon flux/10 m, which was slightly greater (on average) than the Aulosphaeridae. In contrast, suspension-feeding zooplankton in the mesopelagic (including copepods, euphausiids, appendicularians, and ostracods) had combined clearance rates of 2–81 L m -3 day -1 (mean of 19.6 L m -3 day -1 ). This implies a substantial impact on ... Dataset Limacina helicina Copepods Frontiers: Figshare |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering biological pump carbon export remineralization length scale mesozooplankton ecology pteropods marine biogeochemistry sinking particles marine snow |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering biological pump carbon export remineralization length scale mesozooplankton ecology pteropods marine biogeochemistry sinking particles marine snow Michael R. Stukel Mark D. Ohman Thomas B. Kelly Tristan Biard Data_Sheet_1_The Roles of Suspension-Feeding and Flux-Feeding Zooplankton as Gatekeepers of Particle Flux Into the Mesopelagic Ocean in the Northeast Pacific.docx |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering biological pump carbon export remineralization length scale mesozooplankton ecology pteropods marine biogeochemistry sinking particles marine snow |
description |
Zooplankton are important consumers of sinking particles in the ocean’s twilight zone. However, the impact of different taxa depends on their feeding mode. In contrast to typical suspension-feeding zooplankton, flux-feeding taxa preferentially consume rapidly sinking particles that would otherwise penetrate into the deep ocean. To quantify the potential impact of two flux-feeding zooplankton taxa [Aulosphaeridae (Rhizaria), and Limacina helicina (euthecosome pteropod)] and the total suspension-feeding zooplankton community, we measured depth-stratified abundances of these organisms during six cruises in the California Current Ecosystem. Using allometric–scaling relationships, we computed the percentage of carbon flux intercepted by flux feeders and suspension feeders. These estimates were compared to direct measurements of carbon flux attenuation (CFA) made using drifting sediment traps and 238 U– 234 Th disequilibrium. We found that CFA in the shallow twilight zone typically ranged from 500 to 1000 μmol organic C flux remineralized per 10-m vertical depth bin. This equated to approximately 6–10% of carbon flux remineralized/10 m. The two flux-feeding taxa considered in this study could account for a substantial proportion of this flux near the base of the euphotic zone. The mean flux attenuation attributable to Aulosphaeridae was 0.69%/10 m (median = 0.21%/10 m, interquartile range = 0.04–0.81%) at their depth of maximum abundance (∼100 m), which would equate to ∼10% of total flux attenuation in this depth range. The maximum flux attenuation attributable to Aulosphaeridae reached 4.2%/10 m when these protists were most abundant. L. helicina, meanwhile, could intercept 0.45–1.6% of carbon flux/10 m, which was slightly greater (on average) than the Aulosphaeridae. In contrast, suspension-feeding zooplankton in the mesopelagic (including copepods, euphausiids, appendicularians, and ostracods) had combined clearance rates of 2–81 L m -3 day -1 (mean of 19.6 L m -3 day -1 ). This implies a substantial impact on ... |
format |
Dataset |
author |
Michael R. Stukel Mark D. Ohman Thomas B. Kelly Tristan Biard |
author_facet |
Michael R. Stukel Mark D. Ohman Thomas B. Kelly Tristan Biard |
author_sort |
Michael R. Stukel |
title |
Data_Sheet_1_The Roles of Suspension-Feeding and Flux-Feeding Zooplankton as Gatekeepers of Particle Flux Into the Mesopelagic Ocean in the Northeast Pacific.docx |
title_short |
Data_Sheet_1_The Roles of Suspension-Feeding and Flux-Feeding Zooplankton as Gatekeepers of Particle Flux Into the Mesopelagic Ocean in the Northeast Pacific.docx |
title_full |
Data_Sheet_1_The Roles of Suspension-Feeding and Flux-Feeding Zooplankton as Gatekeepers of Particle Flux Into the Mesopelagic Ocean in the Northeast Pacific.docx |
title_fullStr |
Data_Sheet_1_The Roles of Suspension-Feeding and Flux-Feeding Zooplankton as Gatekeepers of Particle Flux Into the Mesopelagic Ocean in the Northeast Pacific.docx |
title_full_unstemmed |
Data_Sheet_1_The Roles of Suspension-Feeding and Flux-Feeding Zooplankton as Gatekeepers of Particle Flux Into the Mesopelagic Ocean in the Northeast Pacific.docx |
title_sort |
data_sheet_1_the roles of suspension-feeding and flux-feeding zooplankton as gatekeepers of particle flux into the mesopelagic ocean in the northeast pacific.docx |
publishDate |
2019 |
url |
https://doi.org/10.3389/fmars.2019.00397.s001 https://figshare.com/articles/Data_Sheet_1_The_Roles_of_Suspension-Feeding_and_Flux-Feeding_Zooplankton_as_Gatekeepers_of_Particle_Flux_Into_the_Mesopelagic_Ocean_in_the_Northeast_Pacific_docx/8865062 |
genre |
Limacina helicina Copepods |
genre_facet |
Limacina helicina Copepods |
op_relation |
doi:10.3389/fmars.2019.00397.s001 https://figshare.com/articles/Data_Sheet_1_The_Roles_of_Suspension-Feeding_and_Flux-Feeding_Zooplankton_as_Gatekeepers_of_Particle_Flux_Into_the_Mesopelagic_Ocean_in_the_Northeast_Pacific_docx/8865062 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2019.00397.s001 |
_version_ |
1766063604142964736 |