نتایج جستجو برای: blooms taxonomy

تعداد نتایج: 33886  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده علوم انسانی 1393

recent studies in scientific education as well as foreign and second language instruction suggest that thinking has rarely been an integral part of education and training in classroom. some scholars decried the lack of emphasis on thinking in the institutes and schools. they noted that memorization and drills were rewarded,while inquiry, reflection, and consideration of alternatives were frowne...

Journal: :Harmful algae 2012
Donald M Anderson Tilman J Alpermann Allan D Cembella Yves Collos Estelle Masseret Marina Montresor

The dinoflagellate genus Alexandrium is one of the major harmful algal bloom (HAB) genera with respect to the diversity, magnitude and consequences of blooms. The ability of Alexandrium to colonize multiple habitats and to persist over large regions through time is testimony to the adaptability and resilience of this group of species. Three different families of toxins, as well as an as yet inc...

Journal: :Applied and environmental microbiology 2009
Meredith D A Howard G Jason Smith Raphael M Kudela

Yessotoxin (YTX) is a globally distributed marine toxin produced by some isolates of the dinoflagellate species Protoceratium reticulatum, Lingulodinium polyedrum, and Gonyaulax spinifera within the order Gonyaulacales. The process of isolating cells and testing each isolate individually for YTX production during toxic blooms are labor intensive, and this impedes our ability to respond quickly ...

Journal: :Toxicon : official journal of the International Society on Toxinology 2010
Lorraine C Backer Sandra V McNeel Terry Barber Barbara Kirkpatrick Christopher Williams Mitch Irvin Yue Zhou Trisha B Johnson Kate Nierenberg Mark Aubel Rebecca LePrell Andrew Chapman Amanda Foss Susan Corum Vincent R Hill Stephanie M Kieszak Yung-Sung Cheng

We conducted a study of recreational exposure to microcystins among 81 children and adults planning recreational activities on either of three California reservoirs, two with significant, ongoing blooms of toxin-producing cyanobacteria, including Microcystis aeruginosa (Bloom Lakes), and one without a toxin-producing algal bloom (Control Lake). We analyzed water samples for algal taxonomy, micr...

Journal: :Microbiology research 2023

Heterosigma akashiwo is a golden-brown unicellular phytoflagellate with high potential to create harmful algal blooms (HABs) and kill fish in many coastal regions worldwide, resulting significant economic losses. Climate change global warming have been introduced as triggers that impact the frequency severity of H. other bloom-forming species past decades. In this review paper, author tried bri...

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