Results 31 to 40 of about 8,287 (259)

Warm‐wet transition restructures arid lake microbiomes and functional potential

iMetaOmics, EarlyView.
This study summarizes how a long‐term warm‐dry to warm‐wet transition restructures microbiomes and functional potential in Lake Bosten, an arid lake in northwestern China. Warm‐wet hydroclimatic change increased water level and hydrological connectivity, while decreasing salinity and total nitrogen.
Zhen Shen, Xingchen Li, Zhijun Gong, Yang Hu, Yongjiu Cai, Keqiang Shao, Guang Gao, Robbie M. Martin, Xiangming Tang   +8 more
wiley   +1 more source

Finding Plankton: A Marine Science Scavenger Hunt for Local Communities

Limnology and Oceanography Bulletin, EarlyView.
Abstract At a time of increasing political polarization and rapidly accelerating climate change, it is important to build public knowledge and empathy toward nature to foster behavioral changes; however, addressing a knowledge deficit can be insufficient to affect these changes.
Hannah M. Budroe, Holly M. Bik
wiley   +1 more source

Statistical filtering to aid in the sorting of phytoplankton: The effects of image library size and phytoplankton shape

Limnology and Oceanography: Methods, EarlyView.
Abstract The demand for efficient image sorting methods has increased due to technological advancements that enable more intensive phytoplankton monitoring. Both statistical and machine learning algorithms can misidentify algal taxa in taxonomically diverse samples, in which phytoplankton morphology and image traits can vary.
Christopher R. Farrow, Josef D. Ackerman
wiley   +1 more source

A novel approach for in situ benthic habitat characterization

Limnology and Oceanography: Methods, EarlyView.
Abstract Habitat heterogeneity is a key driver of temporal and spatial variability of subtidal marine benthic biodiversity. However, this makes it a challenging environment in which to measure and quantify the factors driving biodiversity in a consistent manner.
Ryan J. W. Mathews, David K. A. Barnes, Simon A. Morley, Gareth Flint, Lloyd S. Peck   +4 more
wiley   +1 more source

Refining techniques for high‐frequency monitoring of chlorophyll a fluorescence in estuarine systems

Limnology and Oceanography: Methods, EarlyView.
Abstract Concentrations of the photosynthetic pigment chlorophyll a are commonly used as a proxy for phytoplankton biomass in aquatic systems. Traditional methods for extracting chlorophyll a in discrete samples limit measurement frequency, while in situ sensor technology provides high frequency chlorophyll a fluorescence measurements at a more ...
Nicole Dix, Hannah Nicklay, Jacob Cianci‐Gaskill, Shannon Dunnigan Kimmel, J. Silas Tanner, Kim Cressman, Steven E. McMurray, Yoshimi M. Rii, Rikke Jeppesen, Rachel Guy, Erik Smith   +10 more
wiley   +1 more source

A simplified two‐station approach for modeling metabolism in dam tailwaters subject to diel flow variation

Limnology and Oceanography: Methods, EarlyView.
Abstract Tailwaters are ubiquitous and highly managed ecosystems whose food webs often rely disproportionately on autochthonous energy. In situ continuous dissolved oxygen data are increasingly being used to estimate gross primary productivity and ecosystem respiration in rivers, but this approach is complicated in tailwaters, where upriver ...
Ian W. Bishop, Bridget R. Deemer, Theodore A. Kennedy, Robert A. Payn, Robert O. Hall Jr., Charles B. Yackulic   +5 more
wiley   +1 more source

From the sea to DNA barcode: Optimized preservation method for gelatinous zooplankton integrative taxonomy

Limnology and Oceanography: Methods, EarlyView.
Abstract Assigning taxonomic identity and thus assessing taxonomic diversity in gelatinous zooplankton is challenging due to their fragility and difficult preservation. Formalin fixation compromises DNA integrity, while flash‐freezing, ethanol, and acetone preservation affect morphological features. In this study, we developed a methodological protocol
Claudia Traboni, Rade Garić, Rita Marino, Paolo Sordino, Priscilla Licandro   +4 more
wiley   +1 more source

Effects of preservatives and poisons on the elemental and isotopic composition of freshwater particulate organic matter

Limnology and Oceanography: Methods, EarlyView.
Abstract Sediment traps, often used in tandem with preservatives or poisons, are widely used for the collection of particulate organic matter (POM), providing insight into the source to sink mechanisms that shape major biogeochemical cycles and sedimentary carbon sequestration.
Diana Velazquez, Nathan D. Sheldon, Jenan J. Kharbush   +2 more
wiley   +1 more source

Bed‐level tools for monitoring erosion and accretion patterns: Flume validation and field testing

Limnology and Oceanography: Methods, EarlyView.
Abstract Monitoring short‐term changes in surface sediment elevation is fundamental to understanding erosion, transport, and deposition dynamics in shallow coastal environments. However, commonly used field approaches, such as horizontal markers, sediment erosion tables, subsurface sediment plates, or erosion pins, are not always cross‐validated under ...
Lucía Rodríguez‐Arias, Inés Mazarrasa, Beatriz Marin‐Diaz, Teresa Alcoverro, Barbara Ondiviela, Jordi F. Pagès, Eduardo Infantes   +6 more
wiley   +1 more source

Methodological constraints for the stable isotope analysis of different tissues: A comparison between muscle and whole‐body samples in freshwater gammarids

Limnology and Oceanography: Methods, EarlyView.
Abstract Carbon (δ13C) and nitrogen (δ15N) stable isotope ratios allow the reconstruction of food webs, provided that all trophic levels are properly characterized. In freshwater ecosystems, small‐bodied invertebrates often occupy central positions in food webs, with whole‐body samples commonly used for their stable isotope analysis, due to ...
Alan Fritsch, Pavel Karel Bystřický, Lukáš Veselý, Paride Balzani   +3 more
wiley   +1 more source