Results 151 to 160 of about 258,047 (403)

Summertime plankton ecology in Fram Strait—a compilation of long- and short-term observations

open access: yes, 2015
Between Greenland and Spitsbergen, Fram Strait is a region where cold ice-covered Polar Water exits the Arctic Ocean with the East Greenland Current (EGC) and warm Atlantic Water enters the Arctic Ocean with the West Spitsbergen Current (WSC).
E. Nöthig   +16 more
semanticscholar   +1 more source

Microplastics Identification in Remote Aquatic Environments Using Raman Spectroscopy: A Case Study for Mt. Tymfi's Alpine Lake

open access: yesJournal of Raman Spectroscopy, EarlyView.
This work contributes to the literature on the detection of MPs in Greece, proposes a method for MPs extraction in remote environments taking into account fieldwork constraints of an expedition in the Greek Alps, and takes a step forward in MPs analysis by Raman spectroscopy. ABSTRACT Water samples from the alpine lake of Mt.
Christos Salmas   +4 more
wiley   +1 more source

A glimpse into Oomycota diversity in freshwater lakes and adjacent forests using a metabarcoding approach

open access: yesScientific Reports
Oomycota, a diverse group of fungus-like protists, play key ecological roles in aquatic and terrestrial ecosystems, yet their habitat-specific diversity and distribution remain poorly understood.
Hossein Masigol   +8 more
doaj   +1 more source

Strategic ecosystem studies of large slow flowing lowland rivers. Progress report: April - October 1989 [PDF]

open access: yes, 1989
This report covers the period April to September, 1989. During this period sampling of invertebrates has concentrated on planktonic animals and those associated with one of the dominant macrophytes in the system, Nuphar lutea, the yellow water lily ...
Bass, J.A.B., Pinder, L.C.V.
core   +1 more source

The Rhythms of Plankton

open access: yes
3 figures The dichotomy between day and night drives most rhythms in nature. The sun activates photosynthesis and with it, thousands of biochemical, physiological, and ethological processes. Humans sleep mostly at night, but many beasts thrive in the dark. During the night we see the moon, which also has its rhythms around 28-29 days.
openaire   +2 more sources

Nutrient enrichment—but not warming—increases nitrous oxide emissions from shallow lake mesocosms

open access: yesLimnology and Oceanography, EarlyView.
Abstract Shallow lakes and ponds play a crucial role in the processing of carbon and other nutrients. However, many lakes and ponds worldwide are affected by climate change and nutrient pollution. How these pressures affect the emission of the greenhouse gas nitrous oxide (N2O) is unclear.
Joachim Audet   +3 more
wiley   +1 more source

Climate change–induced terrestrial matter runoff may decrease food web production in coastal ecosystems

open access: yesLimnology and Oceanography, EarlyView.
Abstract Climate change is projected to cause elevated precipitation in northern Europe, leading to increased runoff of terrestrial matter to coastal areas. The consequences for food web production and ecosystem function remain unclear. A mesocosm experiment was performed to investigate the impacts of elevated terrestrial matter input, using a natural ...
Owen F. Rowe   +12 more
wiley   +1 more source

Bounding biomass in the Fisher equation

open access: yes, 2007
The FKPP equation with a variable growth rate and advection by an incompressible velocity field is considered as a model for plankton dispersed by ocean currents. If the average growth rate is negative then the model has a survival-extinction transition;
A. N. Kolmogorov   +11 more
core   +1 more source

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