Rhizaria in the oligotrophic ocean exhibit clear temporal and vertical variability DOI Open Access
A. Barth, Leocadio Blanco‐Bercial,

Rod Johnson

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: May 14, 2024

Recently studies have shown that Rhizaria, a super-group of marine protists, large role in pelagic ecosystems. They are unique they construct mineral tests out silica, calcium carbonate, or strontium sulfate. As consequence, Rhizaria can impacts on the oceans cycling carbon and other elements. However, less is known about ecology their food-web. Some taxa, like certain Radiolaria, mixotrophic, hosting algal symbionts. While taxa flux-feeders even predatory carnivores. prior research has suggested will partition vertically water column, likely due to different trophic strategies. very few investigated populations over extended periods time. In this study, we present data investigating abundance vertical distribution from year monthly cruises Sargasso Sea. This study represents first quantification throughout mesopelagic zone an oligotrophic system for period We use investigate hypothesis taxonomic groups mode. also how varies accordance with environmental parameters. was quantified using Underwater Vision Profiler (UVP5), in-situ imaging device. Ultimately, show patterns. Models relating parameters mixed results, yet particle concentration common predictive variable, supporting importance heterotrophy amongst many taxa.

Language: Английский

Rhizaria in the oligotrophic ocean exhibit clear temporal and vertical variability DOI Open Access
A. Barth, Leocadio Blanco‐Bercial,

Rod Johnson

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: May 14, 2024

Recently studies have shown that Rhizaria, a super-group of marine protists, large role in pelagic ecosystems. They are unique they construct mineral tests out silica, calcium carbonate, or strontium sulfate. As consequence, Rhizaria can impacts on the oceans cycling carbon and other elements. However, less is known about ecology their food-web. Some taxa, like certain Radiolaria, mixotrophic, hosting algal symbionts. While taxa flux-feeders even predatory carnivores. prior research has suggested will partition vertically water column, likely due to different trophic strategies. very few investigated populations over extended periods time. In this study, we present data investigating abundance vertical distribution from year monthly cruises Sargasso Sea. This study represents first quantification throughout mesopelagic zone an oligotrophic system for period We use investigate hypothesis taxonomic groups mode. also how varies accordance with environmental parameters. was quantified using Underwater Vision Profiler (UVP5), in-situ imaging device. Ultimately, show patterns. Models relating parameters mixed results, yet particle concentration common predictive variable, supporting importance heterotrophy amongst many taxa.

Language: Английский

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