Results 61 to 70 of about 2,204 (189)
Shifting ice phenology and ice extent linked to harmful algal bloom severity
Limnology and Oceanography, Volume 71, Issue 7, July 2026.Abstract Ice cover on lakes can have far‐reaching and profound effects on ecosystem structure and function. However, the duration and spatial extent of ice cover is changing rapidly with warming aquatic ecosystems. This loss of ice creates an urgent need to understand how lakes will function without ice cover, both during the ice‐on and ice‐free season,
Claire M. Stevens +1 more
wiley +1 more source
The Community Structure of Picophytoplankton in Lake Fuxian, a Deep and Oligotrophic Mountain Lake
Frontiers in Microbiology, 2019 Spatial and seasonal dynamics of picophytoplankton were investigated by flow cytometry over a year in Lake Fuxian, a deep and oligotrophic mountain lake in southwest China.
Xiaoli Shi +4 more
doaj +1 more source
Frontiers in Microbiology, 2022 Isolates of the marine picocyanobacteria, Prochlorococcus and Synechococcus, are often accompanied by diverse heterotrophic “contaminating” bacteria, which can act as confounding variables in otherwise controlled experiments.
Sean M. Kearney +3 more
doaj +1 more source
Lateral Coastal Blue Carbon Export Fuels a Deep‐Ocean Carbon Sink in an Oligotrophic Warm Pool
Global Biogeochemical Cycles, Volume 40, Issue 7, July 2026.Abstract Coastal blue carbon (CBC) ecosystems export organic matter offshore, but their contribution to deep‐ocean carbon sequestration remains insufficiently quantified. We measured depth‐resolved particulate organic carbon (POC) fluxes, δ13C signatures, and environmental DNA (eDNA) from sediment traps deployed at 150, 500, and 1,000 m in the western ...
Hsueh‐Han Hsieh +12 more
wiley +1 more source
Phytoplankton σPSII and Excitation Dissipation; Implications for Estimates of Primary Productivity
Frontiers in Marine Science, 2018 The effective absorption cross section for photochemistry of Photosystem II in the light (σPSII′) comprises the probability of light capture by Photosystem II and the quantum yield for subsequent photochemistry. σPSII′ is used to model photosynthesis and
Kui Xu +6 more
doaj +1 more source
Photosynthetic primary production in the Mesoproterozoic
New Phytologist, Volume 251, Issue 1, Page 64-80, July 2026.Summary The Mesoproterozoic atmosphere had more CO2 and less O2 than at present. While the upper ocean was oxygenated, the deeper ocean was euxinic or ferruginous. Primary production was performed by Chlorobia, Cyanobacteria, Proteobacteria, and Archaeplastida.
Patricia Sánchez‐Baracaldo +1 more
wiley +1 more source
Distribution of micro-organisms along a transect in the South-East Pacific Ocean (BIOSOPE cruise) using epifluorescence microscopy [PDF]
Biogeosciences, 2008 The distribution of selected groups of micro-organisms was analyzed along a South-East Pacific Ocean transect sampled during the BIOSOPE cruise in 2004.
S. Masquelier, D. Vaulot
doaj
Bioactive Potential of Two Marine Picocyanobacteria Belonging to Cyanobium and Synechococcus Genera
Microorganisms, 2021 Coccoid cyanobacteria produce a great variety of secondary metabolites, which may have useful properties, such as antibacterial, antiviral, anticoagulant or anticancer activities.
Patrizia Pagliara +4 more
doaj +1 more source
Global Change Biology Communications, Volume 1, Issue 2, June 2026.By synthesizing decades of culture data with modern oceanographic datasets, we modelled trace metal limitation of phytoplankton. Our analysis reaffirms the critical role of iron but additionally highlights a significant, growing impact of zinc on the biological pump in future oceans.
Qiong Zhang +9 more
wiley +1 more source
Journal of Freshwater Ecology, 2017 The composition, biomass and dynamics of autotrophic picoplankton (APP, size range of 0.2–2 μm) in a subtropical reservoir (Cerrillos, Puerto Rico) were examined from January to December 2013. Samples were collected monthly in the limnetic zone.
Fernando Pantoja-Agreda +1 more
doaj +1 more source