Results 71 to 80 of about 11,225 (267)

Contrasting functional responses of benthic and hyporheic stream biofilms to light availability and macronutrient stoichiometry

Limnology and Oceanography, EarlyView.
Abstract Nutrient dynamics in headwater streams are governed by benthic and hyporheic biofilms, with carbon (C) : nitrogen (N) : phosphorus (P) ratios driving the heterotrophic microbial biofilm development through nutrient limitation. Furthermore, heterotrophic responses to changes in C : N : P ratios are probably modulated by autotrophic responses to
Anika Große, Daniel Graeber, Patrick Fink, Alexander J. Reisinger, Norbert Kamjunke, Michele Meyer, Maja Ilić, Dietrich Borchardt, Nuria Perujo   +8 more
wiley   +1 more source

Light and temperature as triggers for surface filamentous green algal blooms in shallow freshwater systems

Limnology and Oceanography, EarlyView.
Abstract Blooms of filamentous green algae (FGA) form dense mats at the surface of shallow freshwaters and have multiple negative impacts on aquatic ecosystem functions, services, and aesthetics. Although nutrient enrichment in freshwaters is a primary driver of excessive FGA growth, much less is known about other abiotic factors controlling bloom ...
Hannah R. Kemp, Alexandra Zieritz, Stephen J. Dugdale, Nico R. Helmsing, Suzanne Wiezer, Lisette N. de Senerpont Domis, Stephen C. Maberly, Martyn Kelly, Suzanne McGowan   +8 more
wiley   +1 more source

Daily temperature variation explains zooplankton community differences in freshwater mesocosms recovering from a natural drought

Limnology and Oceanography, EarlyView.
Abstract Drought events are typically studied as a single stressor. However, multiple environmental variables are altered under drought conditions, including water level and daily temperature variation. Here, we experimentally manipulated both variables in 16 outdoor mesocosms to disentangle how they impact freshwater zooplankton communities.
James R. Hubbard, Dania Albini, Michelle C. Jackson   +2 more
wiley   +1 more source

Choice of benthic macroinvertebrate-based metrics for assessing water quality in the littoral zone under anthropogenic disturbance in southern Lake Kivu (Central Africa) [PDF]

, 2021
Béni Lwikitcha Hyangya, Alidor Kankonda Busanga, Marie‐Claire Dusabe, Murhimanya Jean-Diste Kulimushi, Kaningini Boniface Mwenyemali, Pascal Masilya Mulungula   +5 more
openalex   +1 more source

Dominant role of benthic photosynthesis for the metabolism of carbonate sands in a subtropical inner shelf

Limnology and Oceanography, EarlyView.
Abstract Carbonate coral sands are an integral part of the carbon and nutrient cycles in subtropical and tropical coastal environments. Recent studies indicate that nearshore carbonate sands may be hotspots for organic matter production and respiration, but the processes and their controls are poorly understood due to a lack of noninvasive in situ ...
Alireza Merikhi, Peter Berg, Markus Huettel   +2 more
wiley   +1 more source

Experimental droughts in mesocosms reveal a gradient of tolerance in Alpine stream macroinvertebrates

Limnology and Oceanography, EarlyView.
Abstract Prolonged droughts, driven by climate change and human pressures on water resources, are increasing in frequency and intensity, particularly impacting Alpine rivers. Benthic macroinvertebrates are one of the most important structural and functional components of Alpine lotic ecosystems.
Anna Marino, Stefano Fenoglio, Tiziano Bo   +2 more
wiley   +1 more source

Significant impact of lithogenic dissolution from subantarctic volcanic islands on the regional marine silicon cycle

Limnology and Oceanography, EarlyView.
Abstract Silicic acid controls the production of diatoms, a predominant phytoplankton in the Southern Ocean. Diatoms are major contributors to the biological carbon pump, which is particularly active in the Southern Ocean as well as in areas naturally enriched in iron, such as around the Kerguelen Plateau.
Edwin Cotard, Valentin Deteix, Frédéric Vivier, Arnaud Dapoigny, Sandrine Caquineau, Damien Cardinal   +5 more
wiley   +1 more source

Significant benthic fluxes of bioavailable dissolved amino acids to the ocean: Results from the East/Japan Sea

Limnology and Oceanography Letters
We measured dissolved organic carbon (DOC) and total dissolved amino acid (TDAA) in seawater and sediment porewater of the Ulleung Basin in the East/Japan Sea.
Hyekyung Park, Guebuem Kim, Sung‐Han Kim, Jae Seong Lee   +3 more
doaj   +1 more source

Boundary exchange and benthic fluxes drive trace element cycling in North Pacific marginal seas

Limnology and Oceanography, EarlyView.
Abstract Trace elements are essential micronutrients for primary producers in the ocean, supporting vital metabolic functions. However, their behavior in the northwestern Pacific remains unknown. This study investigated the behavior and benthic fluxes of Mn, Fe, Co, Ni, Cu, Zn, and Cd in the East/Japan Sea and the Yellow Sea.
Xiaoyu Chen, Hyeryeong Jeong, Kongtae Ra, Huisu Lee, Intae Kim   +4 more
wiley   +1 more source

High‐frequency benthic flux measurements reveal dynamic diel nitrogen exchanges and water column coupling in a stormwater pond

Limnology and Oceanography, EarlyView.
Abstract This study reports the first set of combined high‐frequency dissolved oxygen (DO), ammonium (NH4+$$ {\mathrm{NH}}_4^{+} $$), and nitrate (NO3−$$ {\mathrm{NO}}_3^{-} $$) benthic flux measurements in a subtropical stormwater pond using the Chamber ARray for Observing Sediment Exchanges Long‐term (CAROSEL), a novel, long‐duration, autonomous ...
Mason Thackston, Donald Nuzzio, Csaba Vaczo, Jordon Beckler   +3 more
wiley   +1 more source