Results 51 to 60 of about 15,354 (255)

Finding Plankton: A Marine Science Scavenger Hunt for Local Communities

Limnology and Oceanography Bulletin, EarlyView.
Abstract At a time of increasing political polarization and rapidly accelerating climate change, it is important to build public knowledge and empathy toward nature to foster behavioral changes; however, addressing a knowledge deficit can be insufficient to affect these changes.
Hannah M. Budroe, Holly M. Bik
wiley   +1 more source

Phytoplankton community structure in the VAHINE MESOCOSM experiment [PDF]

Biogeosciences, 2016
Abstract. The VAHINE mesocosm experiment was designed to trigger a diazotroph bloom and to follow the subsequent transfer of diazotroph derived nitrogen (DDN) in the rest of the foodweb. Three mesocosms (50 m3) located inside the Nouméa lagoon (New Caledonia, South West Pacific) were enriched with dissolved inorganic phosphate (DIP) in order to promote
Leblanc, Karine, Cornet, Veronique, Caffin, Mathieu, Rodier, Martine, Desnues, Anne, Berthelot, Hugo, Turk-Kubo, Kendra, Heliou, Jules   +7 more
openaire   +7 more sources

Photosynthetic pigments in phytoplankton living in high latitudes under conditions of the polar night [PDF]

Vestnik MGTU, 2016
Pigment composition and the vertical distribution of phytoplankton chlorophyll have been studied for the first time in the Barents Sea during the period when there is no photosynthetically active radiation.
Vodop'yanova V. V. , Makarevich P. R.
doaj   +1 more source

Statistical filtering to aid in the sorting of phytoplankton: The effects of image library size and phytoplankton shape

Limnology and Oceanography: Methods, EarlyView.
Abstract The demand for efficient image sorting methods has increased due to technological advancements that enable more intensive phytoplankton monitoring. Both statistical and machine learning algorithms can misidentify algal taxa in taxonomically diverse samples, in which phytoplankton morphology and image traits can vary.
Christopher R. Farrow, Josef D. Ackerman
wiley   +1 more source

Effects of Flood on Phytoplankton Diversity and Community Structure in Floodplain Lakes Connected to the Yangtze River

Diversity, 2022
Flood events can significantly affect the physical and biological processes of aquatic ecosystems in a short time, leading to rapid changes in phytoplankton community structure. The Huayanghe Lakes experienced extreme flooding in the summer of 2020, with
Yutao Wang, Zhongya Fan, Wencai Wang, Zhongze Zhou, Xiaoxin Ye   +4 more
doaj   +1 more source

Refining techniques for high‐frequency monitoring of chlorophyll a fluorescence in estuarine systems

Limnology and Oceanography: Methods, EarlyView.
Abstract Concentrations of the photosynthetic pigment chlorophyll a are commonly used as a proxy for phytoplankton biomass in aquatic systems. Traditional methods for extracting chlorophyll a in discrete samples limit measurement frequency, while in situ sensor technology provides high frequency chlorophyll a fluorescence measurements at a more ...
Nicole Dix, Hannah Nicklay, Jacob Cianci‐Gaskill, Shannon Dunnigan Kimmel, J. Silas Tanner, Kim Cressman, Steven E. McMurray, Yoshimi M. Rii, Rikke Jeppesen, Rachel Guy, Erik Smith   +10 more
wiley   +1 more source

Effects of preservatives and poisons on the elemental and isotopic composition of freshwater particulate organic matter

Limnology and Oceanography: Methods, EarlyView.
Abstract Sediment traps, often used in tandem with preservatives or poisons, are widely used for the collection of particulate organic matter (POM), providing insight into the source to sink mechanisms that shape major biogeochemical cycles and sedimentary carbon sequestration.
Diana Velazquez, Nathan D. Sheldon, Jenan J. Kharbush   +2 more
wiley   +1 more source

A novel approach to estimate non‐algal particle absorption for improved retrieval of pigment concentrations in coastal waters

Limnology and Oceanography: Methods, EarlyView.
Abstract Phytoplankton play a central role in ocean biogeochemistry and understanding their composition and variability is critical for monitoring marine ecosystem dynamics. Continuous spectrophotometric measurements (using a Seabird Sci. AC‐S) along ship tracks enable high‐resolution measurements of particle spectral absorption (apλ$$ {a}_p\left ...
Margherita Costanzo, Vittorio E. Brando, Emmanuel Boss, Alison Chase, David Doxaran   +4 more
wiley   +1 more source

Changes in Phytoplankton and Zooplankton Communities Common Indicator Assessment Changes in Phytoplankton and Zooplankton Communities

, 2023
Between 2015 and 2019 plankton functional groups experienced significant changes in abundance, reflecting a continuation of long-term trends. Larvae of benthic invertebrates increased, while other groups mostly decreased. Observed changes were primarily linked to rising temperatures within offshore areas in the North-East Atlantic, and to nutrients in ...
Holland, Matthew, Louchart, Arnaud, Artigas, Luis Felipe, Mcquatters-Gollop, Abigail   +3 more
openaire   +1 more source

Combatting cyanobacteria with hydrogen peroxide: a laboratory study on the consequences for phytoplankton community and diversity

Frontiers in Microbiology, 2015
Experiments with different phytoplankton densities in lake samples showed that a high biomass increases the rate of HP degradation and decreases the effectiveness of hydrogen peroxide (HP) in the selective suppression of dominant cyanobacteria ...
Erik FJ Weenink, Veerle M Luimstra, Veerle M Luimstra, Jasper Merijn Schuurmans, Jasper Merijn Schuurmans, Maria J Van Herk, Petra M Visser, Hans C.P. Matthijs   +7 more
doaj   +1 more source