Robert O. Hall

Data for: Food-web transfer and associated human exposure to methylmercury in Flathead Lake, Montana

Robert O. Hall, Tyler Tappenbeck

This data set contains mercury concentrations and stable isotope composition of fish and invertebrates collected from Flathead Lake, Montana, USA, from 2016–2021. Fish were captured throughout the lake using sinking gill nets distributed among five sampling units and four depth strata. Muscle …

Spatial and temporal patterns of nutrient limitation in a western Montana river

Matthew T Nichols, Robert O. Hall, Michael D. DeGrandpre, H. Maurice Valett

Nutrient diffusing substrate experiment, Clark Fork River (western Montana), June – September 2024.

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Spatial and temporal patterns of nutrient limitation in a western Montana river

Matthew T Nichols, Robert O. Hall, Michael D. DeGrandpre, H. Maurice Valett

Nutrient diffusing substrate experiment, Clark Fork River (western Montana), June – September 2024.

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Food web complexity underlies biodiversity effects on ecosystem functioning

Andrew D. Barnes, Ulrich Brose, Nico Eisenhauer, Emilio Berti et autres

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Sediment‑associated processes dominate spatial variation in stream ecosystem respiration

Vanessa A. Garayburu‐Caruso, Matthew Kaufman, Brieanne Forbes, Robert O. Hall et autres

Abstract Hyporheic zones (HZ) can contribute substantially to total stream ecosystem respiration (ER tot ). HZ-focused process-based models may, therefore, effectively predict ER tot across sites, yet this remains untested under variable environmental conditions. Here, we evaluate whether spatial variation in HZ …

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Debris Flows Suppressed Riverine Productivity and Respiration Following High‐Severity Wildfire on the Klamath River, California

Laurel Genzoli, John R. Oberholzer Dent, Robert O. Hall, Grant Johnson

Abstract Wildfires alter terrestrial material and energy inputs to rivers, but impacts to ecosystem metabolism and dissolved oxygen (DO) are not well known due to few river ecosystem response studies during and after wildfires. In summer 2022, wildfire and heavy rains triggered …

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WHONDRS Surface Water Geochemistry and Organic Matter Characterization Data from Streams Distributed across Latin America

Amy Goldman, Gabriel S. Alfaro-Vergara, Marcela Bastidas Navarro, Adam Baumann et autres

This dataset supports a broader study examining global transferability of stream biogeochemistry and was generated in collaboration with the MicroSudAqua (µSudAqua) network (https://microsudaqua.netlify.app/en/). The dataset provides surface water geochemistry (dissolved organic carbon, total dissolved nitrogen, cations) and organic matter characterization (FTICR-MS) from …

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Dynamics of Respired Dissolved Organic Carbon in a Stream

Robert O. Hall, Erin R. Hotchkiss, Michelle A. Baker, Stephen Plont

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Forests weather soil cations and lose them to streams

Robert O. Hall

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Algal assemblage drives patterns in ecosystem structure but not metabolism in a productive river

Alice M. Carter, Robert O. Hall, Rafael Feijó‐Lima, Michael D. DeGrandpre et autres

Abstract Algal dynamics are fundamental drivers of lotic ecosystem processes. Although rivers tend to be heterotrophic and have low standing stocks of autotrophic biomass, filamentous algae can cause nuisance algal blooms that alter the structure of the autotrophic assemblage. Still, the influence …

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Water column respiration in the Yakima River basin is explained by temperature, nutrients, and suspended solids

Maggi M. Laan, Stephanie Fulton, Vanessa A. Garayburu‐Caruso, Morgan Barnes et autres

Understanding aquatic ecosystem metabolism involves the study of two key processes: carbon fixation via primary production and organic C mineralization as total ecosystem respiration (ER tot ). In streams and rivers, ER tot includes respiration in the water column (ER wc ) …

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Linking aquatic vegetation structure with ecosystem metabolism throughout the Klamath River, California, USA

Laurel Genzoli, Robert O. Hall

Abstract While terrestrial biomes are routinely defined by their dominant vegetation structure and coupled primary productivity regimes, connecting primary productivity regimes with the properties of aquatic vegetation in rivers is uncommon. Gross primary production (GPP) and ecosystem respiration (ER) indicate riverine ecosystem …

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