Results 51 to 60 of about 42,141 (256)

Comparison between fluorometry and microscopy‐based phytoplankton assessments in the Laurentian Great Lakes

Limnology and Oceanography: Methods, EarlyView.
Abstract Photosynthetic pigment fluorescence is commonly used in limnology and oceanography as a proxy for phytoplankton biomass. Fluorometry has been used to detect subsurface algal blooms, characterize dynamics of the deep chlorophyll layer, and to provide greater vertical resolution to phytoplankton monitoring.
Katya E. Kovalenko, Euan D. Reavie, Christopher T. Filstrup, Anne Scofield, Meaghan Lightfoot, Erica Yang, Elizabeth E. Alexson   +6 more
wiley   +1 more source

Functional diversity of bacterial microbiota associated with the toxigenic benthic dinoflagellate Prorocentrum.

PLoS ONE
Interactions between bacterial microbiota and epibenthic species of the dinoflagellate Prorocentrum may define the onset and persistence of benthic harmful algal blooms (bHABs).
Miguel A Martínez-Mercado, Allan D Cembella, Edna Sánchez-Castrejón, Anaid Saavedra-Flores, Clara E Galindo-Sánchez, Lorena M Durán-Riveroll   +5 more
doaj   +1 more source

Diel transcriptional response of a California Current plankton microbiome to light, low iron, and enduring viral infection. [PDF]

, 2019
Phytoplankton and associated microbial communities provide organic carbon to oceanic food webs and drive ecosystem dynamics. However, capturing those dynamics is challenging. Here, an in situ, semi-Lagrangian, robotic sampler profiled pelagic microbes at
Allen, AE, Allen, EE, Allen, L Zeigler, Aylward, FO, Chavez, FP, Delong, EF, Fontanez, KM, Kolody, BC, McCrow, JP, Moniruzzaman, M, Moustafa, A, Scholin, CA, Worden, AZ   +12 more
core   +2 more sources

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

Limnology and Oceanography: Methods, EarlyView.
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

Specific growth rate and mitotic index in dinoflagellate Symbiodinium sp. isolateed from sea anemone Stichodactyla haddoni [PDF]

بوم‌شناسی آبزیان, 2017
The cultivation techniques of dinoflagellates is often problematic due to their sensitivity to hydrodynamic (shear) stress. For this study, sea anemone was collected from the east coast of Hormuz Island.
Hamideh Tahmasebi, Behrouz Zarei Darki
doaj  

SxtA and sxtG Gene Expression and Toxin Production in the Mediterranean Alexandrium minutum (Dinophyceae)

Marine Drugs, 2014
The dinoflagellate Alexandrium minutum is known for the production of potent neurotoxins affecting the health of human seafood consumers via paralytic shellfish poisoning (PSP).
Federico Perini, Luca Galluzzi, Carmela Dell'Aversano, Emma Dello Iacovo, Luciana Tartaglione, Fabio Ricci, Martino Forino, Patrizia Ciminiello, Antonella Penna   +8 more
doaj   +1 more source

Assimilation of machine‐learning‐predicted nitrate to improve the quality of phytoplankton forecasting in the shelf‐sea environment

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This article demonstrates that assimilating machine‐learning‐derived surface nitrate can improve five‐day phytoplankton forecast substantially within the Met Office operational system for the Northwest European Shelf. We explain the reasons behind this improvement and propose that an online system where machine learning and data assimilation are cycled
Deep S. Banerjee, Jozef Skákala, David Ford   +2 more
wiley   +1 more source

Accumulation and elimination dynamics of the hydroxybenzoate saxitoxin analogues in mussels Mytilus galloprovincialis exposed to the toxic marine Dinoflagellate Gymnodinium catenatum [PDF]

, 2018
Paralytic shellfish poisoning (PSP) is a severe food-borne illness, caused by the ingestion of seafood containing paralytic shellfish toxins (PST), which are naturally produced by marine dinoflagellates and accumulate in shellfish during algae blooms ...
Braga, Ana, Reis Costa, Pedro, Turner, Andrew   +2 more
core   +1 more source

Jellyfish blooms restructure plankton dynamics and trophic linkages in coastal waters

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Jellyfish blooms are increasing globally in frequency and intensity, introducing complex ecological interactions, yet the mechanisms by which they alter ecosystem structure remain poorly characterized due to a lack of sustained field observations.
Pengpeng Wang, Fang Zhang, Xiaoke Xin, Shuo Wang, Song Sun   +4 more
wiley   +1 more source

Electrochemical detection of the toxic dinoflagellate Alexandrium ostenfeldii with a DNA-biosensor [PDF]

, 2005
The steady rise of observations of harmful or toxic algal blooms throughout the world in the past decades constitute a menace for coastal ecosystems and human interests.
Huljic, S., Lange, M., Medlin, Linda, Metfies, Katja   +3 more
core   +1 more source