Results 101 to 110 of about 97,178 (301)

Insight into diversity change, variability and co-occurrence patterns of phytoplankton assemblage in headwater streams: a study of the Xijiang River basin, South China

Frontiers in Microbiology
Phytoplankton has been used as a paradigm for studies of coexistence of species since the publication of the “paradox of the plankton.” Although there are a wealth of studies about phytoplankton assemblages of lakes, reservoirs and rivers, our knowledge ...
Yuyang Peng, Chuangfeng Wu, Guibin Ma, Haiming Chen, Qinglong L. Wu, Qinglong L. Wu, Dan He, Erik Jeppesen, Erik Jeppesen, Erik Jeppesen, Erik Jeppesen, Lijuan Ren   +11 more
doaj   +1 more source

Cyanogenic Compounds, Physicochemical Parameters and Metals in Water From Cassava Processing Areas: A Study in the Brazilian Amazon, Using Multivariate Analysis

Environmental Toxicology, EarlyView.
ABSTRACT This study evaluated the water quality of artesian wells and effluents generated in cassava processing in a rural area of Bragança, Pará, with emphasis on physicochemical parameters, multielement composition, and cyanogenic compounds. The well water presented specific nonconformities, highlighting pH values below the recommended level and high
Alana Coêlho Maciel, Mariane Gama Nabiça, Luciana Pinheiro Santos, Thiago de Melo e Silva, Elivaldo Nunes Modesto Junior, Heronides Adonias Dantas Filho, Charles Miller de Souza Borges, Kelly das Graças Fernandes Dantas, Simone de Fátima Pinheiro Pereira, Ivan Carlos da Costa Barbosa, Beni Jequicene Mussengue Chaúque, Rosinelson da Silva Pena, Nayara Macêdo Peixoto Araújo, Alessandra Santos Lopes   +13 more
wiley   +1 more source

Factors influencing phytoplankton and dissolved oxygen in San Juan Channel: a spatial and temporal assessment [PDF]

, 2011
The purpose of study was to investigate how physical and biological factors influence phytoplankton and dissolved oxygen spatially and temporally in San Juan Channel over fall and the annual cycle of 2011.
Meyer, Brigitte
core  

Defining the ecological strategies of phytoplankton associated bacteria

Nature Communications
Ecological interactions between phytoplankton and bacteria govern the productivity and biogeochemistry of aquatic ecosystems. However, our understanding of these partnerships primarily comes from laboratory-based model systems, meaning that little is ...
Amaranta Focardi, Anna R. Bramucci, Penelope Ajani, Abeeha Khalil, Jean-Baptiste Raina, Justin R. Seymour   +5 more
doaj   +1 more source

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

GIScience & 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, Jongseong Ryu, Dabin Lee, Jung-Woo Park, Jae-Il Kwon, Jingping Zhao, Seunghyun Son   +6 more
doaj   +1 more source

Synergistic and Antagonistic Effects of Chemical Pollutants and Parasitic Fungi on Cyanobacterial Metabolism

Environmental Toxicology, EarlyView.
ABSTRACT Freshwater ecosystems are increasingly impacted by anthropogenic pollutants, including the widely used herbicide metolachlor (MET) and cigarette butt (CB) litter. Parasites represent an additional biotic stressor that can modulate pollutant effects on their hosts.
Erika Berenice Martínez‐Ruiz, Jutta Fastner, Stephanie Spahr, Justyna Wolinska   +3 more
wiley   +1 more source

Phytoplankton Composition in Relation to Environmental Parameters of Shallow Oxbow Lake [PDF]

, 2020
In this study, the aim is to identify the phytoplankton communities in Nagy-morotva and calculate the composition of the species along the oxbow lakes at several cross-sections (a total of seven cross-sections include left-middle-right).
Azizah, Luthfiyyah
core  

Physical controls and mesoscale variability in the Labrador Sea spring phytoplankton bloom observed by Seaglider [PDF]

, 2009
We investigated the 2005 spring phytoplankton bloom in the Labrador Sea using Seaglider, an autonomous underwater vehicle equipped with hydrographic, bio-optical and oxygen sensors.
Rhines, Peter B., Eriksen, Charles C., Frajka-Williams, Eleanor   +2 more
core   +1 more source

Size Class Dependent Relationships between Temperature and Phytoplankton Photosynthesis-Irradiance Parameters in the Atlantic Ocean

Frontiers in Marine Science, 2018
Over the past decade, a number of methods have been developed to estimate size-class primary production from either in situ phytoplankton pigment data or remotely-sensed data.
Alex Robinson, Heather A. Bouman, Gavin H. Tilstone, Shubha Sathyendranath   +3 more
doaj   +1 more source

Ecotoxicological Assessment of Mercury in Fish From a Gold‐Mining‐Impacted Amazonian River: Biomonitoring and Human Health Risk

Environmental Toxicology, EarlyView.
ABSTRACT The Peixoto de Azevedo River, located in northern Mato Grosso, southern Brazilian Amazon, has a long history of artisanal and small‐scale gold mining (ASGM). This study evaluated total mercury (THg) concentrations in fish tissues to assess biomagnification and potential risks.
Augusto Cesar da Costa Castilho, Kleber Solera, Vinícius José Santos Lopes, Gleyce Alves Machado, Ricardo Lopes Tortorela de Andrade, Leandro Dênis Battirola   +5 more
wiley   +1 more source