Results 51 to 60 of about 22,102 (250)

Periphyton effects on bacterial assemblages and harmful cyanobacterial blooms in a eutrophic freshwater lake: a mesocosm study

open access: yesScientific Reports, 2017
Periphyton comprises a broad range of autotrophic and heterotrophic organisms that grow on submerged surfaces in aquatic environments. To investigate the ecological roles of periphyton and their symbiotic bacterial assemblages related to the control of ...
Yingshun Cui   +8 more
doaj   +1 more source

Phanerozoic Large Igneous Province, Petroleum System, and Source Rock Links

open access: yesGeophysical Monograph Series, Page 191-228., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Steven C. Bergman   +2 more
wiley  

+1 more source

Recent occurrence of Cylindrospermopsis raciborskii, in Waikato lakes of New Zealand. [PDF]

open access: yes, 2003
Cylindrospermopsis raciborskii is a toxin-producing species of cyanobacteria that in autumn 2003 was recorded for the first time in three shallow (max. depth ≤5 m) Waikato lakes and a hydro-electric dam on the Waikato River, New Zealand.
Antenucci J. P.   +8 more
core   +2 more sources

Bioaccumulation of Microcystins by Freshwater Mussels in Mystic Lake and Middle Pond, MA [PDF]

open access: yes, 2011
The UNH Center for Freshwater Biology investigated a possible relationship between a cyanobacteria bloom and a large-scale die-off of freshwater mussels in Mystic Lake and Middle Pond (Barnstable, MA).
Haney, James F.   +2 more
core   +1 more source

Temperature Thresholds Govern Microbial‐Mediated Dissolved Organic Carbon Dynamics in Coastal Ecosystems

open access: yesAdvanced Science, EarlyView.
Coastal dissolved organic carbon (DOC) represents one of the largest reduced carbon pools on Earth, and they are influenced by temperature. Across 7.6–35.9 °C ranges, the microbial‐mediated DOC dynamics is characterized by three temperature thresholds.
Junfu Dong   +12 more
wiley   +1 more source

New Zealand Guidelines for cyanobacteria in recreational fresh waters: Interim Guidelines [PDF]

open access: yes, 2009
This document is divided into four main sections, plus 14 appendices. Section 1. Introduction provides an overview of the purpose and status of the document as well as advice on who should use it. Section 2.
Hamilton, David P.   +4 more
core   +1 more source

Amazonian Cyanobacteria as a Source of Bioactive Compounds With Antimicrobial and Cytotoxic Properties

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT Cyanobacteria are photosynthetic microorganisms known for producing diverse bioactive compounds. This study explores the bioactivity of extracts and fractions from Amazonian cyanobacteria and their pigment and phenolic compound production. A fraction from Synechococcus sp. CACIAM 05 showed cytotoxicity against hCMEC/D3 and MG‐63 cells.
Samuel Cavalcante do Amaral   +8 more
wiley   +1 more source

Polyphasic assessment of the bloom-forming cyanobacterial species Limnoraphis robusta (Oscillatoriaceae) and Microcystis aeruginosa (Microcystaceae) in a Mexican subtropical crater lake

open access: yesRevista Mexicana de Biodiversidad, 2021
The main element to assess the potential risks associated with toxic cyanobacterial blooms is the precise identification of the species. As part of a water quality monitoring during 2015 in Santa María del Oro crater lake, Nayarit, a cyanobacterial ...
Ivan Salazar-Alcaraz   +6 more
doaj   +1 more source

Freshwater bloom‐forming cyanobacteria and anthropogenic change [PDF]

open access: yesLimnology and Oceanography e-Lectures, 2017
This lecture (∼ 45‐55 slides) will be aimed at senior undergraduate students and graduate students in aquatic sciences with little background in phycology. This lecture could be used in a Aquatic Ecology or Sciences (Limnology) course, an Ecology course, a Phycology course, Environmental Science.Cyanobacteria that may lead to blooms encompass a wide ...
Frances R. Pick, Sylvia Bonilla
openaire   +2 more sources

Whitings in the Red Sea

open access: yesThe Depositional Record, EarlyView.
We present the first documentation of whitings in the Red Sea, observed in a lagoonal environment. These events are linked to cascading offshore dense waters that liberate trapped sea floor nutrients, triggering algal blooms and elevating alkalinity, which is buffered by direct CaCO3 precipitation—contributing to the accumulation of aragonite mud in ...
Manuel Ariza‐Fuentes   +8 more
wiley   +1 more source

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