نتایج جستجو برای: algal bloom

تعداد نتایج: 18518  

Journal: :iranian journal of pharmaceutical research 0
jafar shahraki faculty of pharmacy, shahid beheshti university of medical sciences, tehran, p.o.box 14155-6153, iran. department of pharmacology and toxicology, faculty of pharmacy, zabol university of medical sciences, zabol, iran. abbasali motallebi iranian fisheries research organization, tehran, iran. marjan aghvami school of pharmacy, pharmaceutical sciences research center, shahid beheshti university of medical sciences, tehran, p.o.box 14155-6153, iran. jalal pourahmad school of pharmacy, pharmaceutical sciences research center, shahid beheshti university of medical sciences, tehran, p.o.box 14155-6153, iran.

in this research, we investigated the cytotoxic mechanisms of cochlodinium polykrikoidescell lysate on isolated rat liver hepatocytes.this micro algae is responsible for a severe and widespread harmful algal bloom in the persian gulf and gulf of oman (2008-2009). isolated hepatocytes were obtained by collagenase perfusion of sprague-dawley rat liver.according to our results, incubation of algal...

Journal: :Ecological Informatics 2007
Hongbin Li Guoxiang Hou Feng Dakui Bangding Xiao Lirong Song Yongding Liu

Lake Dianchi is a shallow and turbid lake, located in Southwest China. Since 1985, Lake Dianchi has experienced severe cyanabacterial blooms (dominated by Microcystis spp.). In extreme cases, the algal cell densities have exceeded three billion cells per liter. To predict and elucidate the population dynamics of Microcystis spp. in Lake Dianchi, a neural network based model was developed. The c...

2001

Algae are the population of microscopic single and multiple-celled aquatic plants that live in water. While most individual algal cells can only be viewed using an instrument such as a microscope, algal blooms give color to the pond water. When populations of algal cells multiply, thereby clouding or giving color to a pond, it is called an algal bloom. Another term used to describe algae is phy...

1999
Edward J. Buskey Paul A. Montagna Anthony F. Amos Terry E. Whitledge

Disruption of grazer populations, or mismatches between phytoplankton blooms and population dynamics of their planktonic and benthic grazers, may play an important role in the initiation of some harmful algal blooms. The Laguna Madre of Texas has experienced a persistent, nearly monospecific phytoplankton bloom since January 1990 commonly referred to as the “brown tide.” Whole-water samples col...

2015
I. Uzonur E. Muftuoglu

The identification and quantification of individual algal species remains difficult, time consuming, requiring a great deal of expertise and experience. Alternative to traditional, morphology-based methods, molecular techniques need less expertise for the detection of cryptic species within the bioindicator community. Although these methods require detailed knowledge of the molecular diversity ...

Journal: :Remote Sensing 2015
Andrew Kamerosky Hyun Jung Cho Lori Morris

During the spring of 2011 an unprecedented “Super” algal bloom formed in the Indian River Lagoon (IRL), with Chlorophyll a (Chl a) concentrations over eight times the historical mean in some areas and lasted for seven months across the IRL. The European Space Agency’s MEdium Resolution Imaging Spectrometer (MERIS) platform provided multispectral data at 665 and 708 nm, which was used to quantif...

2001
B. M. Lesht J. R. Stroud M. J. McCormick G. L. Fahnenstiel M. L. Stein L. J. Welty G. A. Leshkevich

[1] Sea-viewing Wide Field-of-View Sensor (SeaWiFS) images from June 1998 show a surprising early summer phytoplankton bloom in southern Lake Michigan that accounted for approximately 25% of the lake’s annual gross offshore algal primary production. By combining the satellite imagery with in situ measurements of water temperature and wind velocity we show that the bloom was triggered by a brief...

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