Results 131 to 140 of about 67,900 (262)
Mercury cycling during the last glacial period in Arctic Lake El'gygytgyn, NE Russia
Journal of Quaternary Science, EarlyView.ABSTRACT Tectonic processes play a key role in the global mercury (Hg) cycle on geological timescales, by mobilising Hg from deep Earth reservoirs to the surface. These natural fluxes also introduce a dynamic component to the terrestrial Hg cycle that can interact with other environmental signals and influence Hg delivery to sedimentary records.
Alice R. Paine +7 more
wiley +1 more source
Plankton come in all shapes and sizes, from microscopic creatures invisible to the naked eye to giants larger than a beach ball. But how do we categorize this incredible range? Scientists have developed a system known as size classification to understand
Calbet, Albert
core
Microbial communities and functional diversity in seafood
JSFA reports, EarlyView.Abstract Functional diversity encompasses ecosystem processes that enhance adaptability to environmental change. This study explores the diversity of microorganisms associated with seafood. In this paper, we present our knowledge of microbial diversity in relation to seafood.
Christian Larbi Ayisi +3 more
wiley +1 more source
A systematic 15N‐amino‐acid tracer framework to identify sources of pelagic marine organic matter
Limnology and Oceanography: Methods, EarlyView.Abstract Accurately tracing organic matter sources in marine systems remains challenging, particularly where natural and anthropogenic inputs coexist. Compound‐specific stable isotope analysis of amino acids (CSIA‐AA) offers strong potential for organic matter source discrimination, but its application is limited by the small number of validated δ15N ...
E. Cepeda +5 more
wiley +1 more source
, 2013 Plankton are tiny water plants and animals that drift with the currents and tides. Plant plankton are called Phyto-Plankton. Animal plankton are called Zoo-Plankton. ______________________________________________Please note: This resource is presented as
(NSM), Nova Scotia Museum
core +1 more source
Limnology and Oceanography: Methods, EarlyView.Abstract Accurate measurements of phytoplankton net primary production (NPP) and calcification are essential for quantifying marine carbon cycling, yet in situ calcification rates remain poorly constrained. We compared 13C‐ and 14C‐based tracer methods for NPP in laboratory cultures of the diatom Chaetoceros tenuissimus and the coccolithophore ...
Chloe L. Smith +4 more
wiley +1 more source
Is DNA metabarcoding an option for formaldehyde‐preserved zooplankton time series?
Limnology and Oceanography: Methods, EarlyView.Abstract The recovery of amplifiable DNA from formaldehyde‐fixed (FF) zooplankton samples has long been considered problematic, but advances in degraded‐DNA retrieval have renewed interest in FF samples. To access the information stored in long‐term zooplankton time series, we evaluated methods for extracting amplifiable DNA from community samples ...
Aitor Albaina +4 more
wiley +1 more source
Method‐dependent differences in zooplankton abundance and size metrics: Microscopy vs. ZooScan
Limnology and Oceanography: Methods, EarlyView.Abstract Image‐based approaches such as ZooScan are increasingly used for high‐throughput zooplankton monitoring. However, quantitative evaluations of methodological differences relative to conventional microscopy remain limited. In this study, zooplankton abundance and size‐based metrics obtained from microscopy and ZooScan image analysis were ...
Young Seok Jeong +4 more
wiley +1 more source
Limnology and Oceanography: Methods, EarlyView.Abstract Fluorometric enzyme assays are a tool for determining potential enzyme activity in soils. A wide array of methodological approaches is adopted by different studies, making comparisons difficult. An important consideration is whether assay conditions replicate the environment of the samples or optimize potential enzyme activity.
Catrina Gore +4 more
wiley +1 more source