Results 171 to 180 of about 22,138 (248)

Flow cytometric phytoplankton concentration and optical properties across instruments and laboratories

Limnology and Oceanography: Methods, EarlyView.
Abstract Flow cytometry measures the optical properties of individual cells and has become essential for enumerating and characterizing marine phytoplankton. Yet systematic comparison of measurements across instruments remains limited, hampering data comparison across laboratories and long‐term time series.
Francois Ribalet, Anne W. Thompson, E. Virginia Armbrust, Raffaella Casotti, Josep M. Gasol, Emily Peacock, Massimo C. Pernice, Nicole J. Poulton, Heidi M. Sosik, Angelicque E. White, Zackary Johnson   +10 more
wiley   +1 more source

Freshwater fishes of the Waterberg aquatic ecoregion, South Africa: Diversity, taxonomic conflicts and conservation concerns. [PDF]

J Fish Biol
Woodford DJ, Magoro M, Kadye WT, Scheepers M, Sithole Y, Mutizwa TI, Ntokoane T, Chakona A.   +7 more
europepmc   +1 more source

Intercomparison of carbon‐13 and carbon‐14 tracer approaches for estimating marine calcification and net primary production

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, Austin Grubb, Kay D. Bidle, Kimberlee Thamatrakoln, Adam V. Subhas   +4 more
wiley   +1 more source

Reconstructing the phylogeny and evolutionary history of freshwater fishes (Nemacheilidae) across Eurasia since early Eocene. [PDF]

Elife
Šlechtová VB, Dvořák T, Freyhof J, Kottelat M, Levin B, Golubtsov A, Šlechta V, Bohlen J.   +7 more
europepmc   +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, Anders Lanzén, Irati Miguel, Fernando Rendo, María Santos   +4 more
wiley   +1 more source

Anisakid nematode larvae in freshwater fishes in the St. Lawrence River (Québec, Canada). [PDF]

Int J Parasitol Parasites Wildl
Brisson-Bonenfant C, Paradis Y, Marcogliese DJ, Côté G, Aubé S, Bernatchez S, Brodeur P.   +6 more
europepmc   +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, Min‐Chul Jang, Min Ho Seo, Dong‐Hun Lee, Ho Young Soh   +4 more
wiley   +1 more source

Phenotypic and genotypic characterization of Aeromonas hydrophila isolated from freshwater fishes at Middle Upper Egypt. [PDF]

Sci Rep
Abo-Shama UH, El Raheem AAA, Alsaadawy RM, Sayed HH.   +3 more
europepmc   +1 more source

Cotton strips as a model substrate for analysis of leaf‐litter‐colonizing microbial assemblages in streams

Limnology and Oceanography: Methods, EarlyView.
Abstract Leaf‐litter decomposition is a key indicator of the functional integrity of stream ecosystems and cotton strips have been employed as a standard substrate for quantification of litter‐decomposition rates in streams across the globe. Cotton strips also offer a standardized method for assessing structural integrity of stream microbial ...
Trinity Shoemaker, Cynthia Nguyen, Scott D. Tiegs, David M. Costello, John J. Kelly   +4 more
wiley   +1 more source

Comparison of chemical treatments to ablate the lateral line system in two freshwater fishes, bumblebee goby <i>Brachygobius doriae</i> and silver hatchetfish <i>Gasteropelecus</i> sp. [PDF]

MicroPubl Biol
Kapoor H, Levin J, Azevedo A, Chhetri S, Lassen K, Zheng J, Schwalbe MAB.   +6 more
europepmc   +1 more source