Results 61 to 70 of about 9,915 (190)

Warming enhances protozooplankton top‐down control and nutrient competition

Limnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract Protozooplankton regulate microbial food webs through top‐down control and nutrient cycling, yet their grazing impacts under ocean warming, particularly in subsurface chlorophyll maximum (SCM) layers, remain poorly understood. This study investigated spatial and seasonal variability in protozooplankton grazing in the northern East China Sea ...
Eunbi Lee, Chan‐Woo Kwon, Hyeong Kyu Kwon, Yoonja Kang   +3 more
wiley   +1 more source

High Grazing Rates on Cryptophyte Algae in Chesapeake Bay

Frontiers in Marine Science, 2018
Cryptophyte algae are globally distributed photosynthetic flagellates found in freshwater, estuarine, and neritic ecosystems. While cryptophytes can be highly abundant and are consumed by a wide variety of protistan predators, few studies have sought to ...
Matthew D. Johnson, David J. Beaudoin, Miguel J. Frada, Emily F. Brownlee, Diane K. Stoecker   +4 more
doaj   +1 more source

From cells to reefs—fluorescent protein distribution reveals species‐specific photoadaptation in closely related Caribbean corals

Limnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract Fluorescent proteins (FPs) are diverse and widespread pigments in reef‐building corals, assumed to modulate the internal light microenvironment within coral tissues. Yet, their precise distribution and organization at the tissue and cellular levels remain poorly understood, limiting our understanding of their functional roles.
Giulia M. Marchioro, Johanna Sonnleitner, Helena E. Silberhumer, Michael Schagerl, Luise Kruckenhauser, Gerhard J. Herndl, Igor Adameyko, Pedro R. Frade   +7 more
wiley   +1 more source

Dynamics of dinoflagellates and environmental factors during the summer in the Gulf of Gabes (Tunisia, Eastern Mediterranean Sea)

Scientia Marina, 2008
The summer spatial distribution of the dinoflagellate community along an open coastal sea gradient in the Gulf of Gabes (Tunisia, Eastern Mediterranean Sea), together with environmental factors, were studied.
Zaher Drira, Asma Hamza, Malika Belhassen, Habib Ayadi, Abderrahmen Bouaïn, Lotfi Aleya   +5 more
doaj   +1 more source

Red, green, blue color indices as proxy for Symbiodiniaceae cell density and chlorophyll content during coral bleaching

Limnology and Oceanography: Methods, Volume 24, Issue 6, June 2026.
Abstract Coral bleaching, the breakdown of the symbiosis between the coral host and endosymbiotic microalgae, is the main cause of widespread coral reef degradation. Current visual assessment methods for coral health, including color reference cards, are constrained by subjective human color perception and limited resolution.
Erik Francesco Ferrara, Lavinia Bauer, Giulia Puntin, Friederike Bautz, Sibel Celayir, Marie‐Sa Do, Frederik Eck, Melissa Heider, Pia Wissel, Angelina Arnold, Thomas Wilke, Jessica Reichert, Maren Ziegler   +12 more
wiley   +1 more source

A review of mechanically stimulated bioluminescence of marine plankton and its applications

Frontiers in Marine Science
Bioluminescence is ubiquitous in marine ecosystems and found in uni- and multicellular organisms. Bioluminescent displays can be used to deter predators, attract mates, and lure and hunt prey.
Francis Letendre, Michael Twardowski, Abigail Blackburn, Carina Poulin, Michael I. Latz   +4 more
doaj   +1 more source

Environmental factors influencing the variability of Lingulodinium polyedrum and Scrippsiella trochoidea (Dinophyceae) cyst production

Ciencias Marinas, 2009
This study analyzes the temporal variability of the abundance of Lingulodinium polyedrum and Scrippsiella trochoidea resting cysts in surface sediments, as well as the temporary cysts and vegetative cells of L.
JL Peña-Manjarrez, G Gaxiola-Castro, J Helenes-Escamilla   +2 more
doaj   +1 more source

Response of the Nitrogen Isotopic Composition of Planktic Foraminifer Tissue to Surface Ocean Nutrient Cycling: A Case Study in the Northern South China Sea

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract This study presents data on geographically small‐scale patterns of nitrogen (N) isotope signals (δ15N) within the northern South China Sea (SCS) imprinted on planktic foraminifers (PF). PF from net tows on the shelf, continental slope, and in pelagic waters from summer 2019 were analyzed for δ15N.
Aaron L. Bieler, Lena Heins, Sandi M. Smart, Jassin Petersen, Tobias Eßmann, Birgit Gaye, Joanna J. Waniek, Daniel M. Sigman, Gerald H. Haug, Alfredo Martínez‐García, Ralf Schiebel   +10 more
wiley   +1 more source

Paleoceanographic and paleoclimatic reconstruction based on marine palynomorphs in the period 1811–1907 CE in the Magdalena Basin, Baja California Sur, Mexico

Ciencias Marinas, 2019
Biennial variations of marine palynomorph concentrations mirrored oceanographic conditions in the Magdalena Basin, Baja California Sur (Mexico), in the period from 1811 to 1907 (common era, CE), for which the sea surface temperature index (SSTI) showed ...
Laura Cristina López-Velázquez, Javier Helenes, Juan Gabriel Flores-Trujillo, Ana Carolina Ruiz-Fernández, Joan Albert Sanchez-Cabeza   +4 more
doaj   +1 more source

Reversible Regime Change: Climate‐Driven Phytoplankton Community Shifts in the Cariaco Basin, Venezuela

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 6, June 2026.
Abstract Phytoplankton communities are integral to oceanic biogeochemical cycles and are sensitive indicators of climate‐driven environmental variability. Long‐term time series capture this variability, allowing us to unravel the effects of environmental change on local communities.
Benjamin Post, Esteban Acevedo‐Trejos, Subhendu Chakraborty, Andrew D. Barton, Agostino Merico   +4 more
wiley   +1 more source