Results 111 to 120 of about 228,585 (362)

Nutrient‐dependent thermal response in growth and stoichiometry of Antarctic phytoplankton

open access: yesLimnology and Oceanography, EarlyView.
Abstract Rising temperatures and altered nutrient supply are expected to influence future phytoplankton thermal performance and community dynamics. The thermal response of phytoplankton has been shown to be influenced by nutrient availability, but information is still limited, particularly for the coastal Southern Ocean.
Mike Smykala   +2 more
wiley   +1 more source

Exploring the link between micro-nutrients and phytoplankton in the Southern Ocean during the 2007 austral summer

open access: yesFrontiers in Microbiology, 2012
Bottle assays and large-scale fertilisation experiments have demonstrated that, in the Southern Ocean, iron often controls the biomass and the biodiversity of primary producers.
Christel eHassler   +6 more
doaj   +1 more source

On the existence of solutions for a nonlinear stochastic partial differential equation arising as a model of phytoplankton aggregation [PDF]

open access: yesarXiv, 2015
In this paper, we are interested in the analytical study of a nonlinear Stochastic Partial Differential Equation (SPDE) arising as a model of phytoplankton aggregation. This SPDE consists in a diffusion equation with a chemotaxis term responsible of self-attraction of phytoplankton cells and a multiplicative branching noise. Existence of mild solutions
arxiv  

Ecogenomics and limnological dynamics of a new Thiocapsa species blooming in the whole water column of a karstic lake

open access: yesLimnology and Oceanography, EarlyView.
Abstract Purple sulfur bacteria (PSB) of the family Chromatiaceae (Gammaproteobacteria) can perform chemo‐ and photo‐lithoautotrophy (through anoxygenic photosynthesis) in anoxic layers of freshwater stratified (including meromictic) lakes. This group has been extensively studied via physiological and ecological approaches, albeit their genomics has ...
Pedro J. Cabello‐Yeves   +7 more
wiley   +1 more source

Comparison of bacterioneuston and bacterioplankton dynamics during a phytoplankton bloom in a fjord mesocosm [PDF]

open access: yes, 2009
The bacterioneuston is the community of Bacteria present in surface microlayers, the thin surface film that forms the interface between aquatic environments and the atmosphere. In this study we compared bacterial cell abundance and bacterial community
Cunliffe, Michael   +5 more
core   +2 more sources

Nutrient inversion but not warming drive changes in periphyton biomass and composition in shallow lake mesocosms

open access: yesLimnology and Oceanography, EarlyView.
Abstract Periphyton plays an important functional role in shallow lakes and is sensitive to variation in nutrient availability and global warming. Understanding the responses of periphyton to changes in nutrient availability in contrasting warming scenarios can contribute to the development of more efficient techniques for the restoration of lakes in a
Olivera Stamenković   +4 more
wiley   +1 more source

Spatial variations of small phytoplankton contributions in the Northern Bering Sea and the Southern Chukchi Sea

open access: yesGIScience & Remote Sensing, 2019
Phytoplankton size classes (hereafter, PSCs) were derived from satellite ocean color data using a present phytoplankton abundance-based optical algorithm in the northern Bering and southern Chukchi Seas to characterize the spatial and seasonal variations
Sang Heon Lee   +6 more
doaj   +1 more source

Trophic strategies of freshwater nanoflagellates under variable run‐off scenarios

open access: yesLimnology and Oceanography, EarlyView.
Abstract Terrestrial run‐off is increasing in temperate lakes due to climate change and can lead to loading of colored dissolved organic matter (cDOM) and nutrients, thus reducing light availability and increasing carbon, nitrogen, and phosphorus. Run‐off events are highly irregular, resulting in temporal resource variability that may determine the ...
Katerina Symiakaki   +6 more
wiley   +1 more source

Report of the 2005 Workshop on Ocean Ecodynamics Comparison in the Subarctic Pacific [PDF]

open access: yes, 2006
I. Scientific Issues Posed by OECOS II. Participant Contributions to the OECOS Workshop A. ASPECTS OF PHYTOPLANKTON ECOLOGY IN THE SUBARCTIC PACIFIC Microbial community compositions by Karen E.
Ikeda, Tsutomu, Miller, Charles B.
core  

Smaller phytoplankton size‐groups control the stoichiometry of the autotrophic community

open access: yesLimnology and Oceanography, EarlyView.
Abstract In the marine environment, the prevailing paradigm is that larger organisms like diatoms are primary contributors to phytoplankton stoichiometry. Numerous studies investigated the stoichiometry of phytoplankton groups or total community but its dynamics among different size‐groups are not resolved.
Thomas Mollica   +3 more
wiley   +1 more source

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