نتایج جستجو برای: red tide
تعداد نتایج: 156005 فیلتر نتایج به سال:
The chemical parameters 'NO', 'PO' and 'CO' are constants that remain invariable during photosynthesis or remineralization of organic matter. Nevertheless, exceptionally, during a red tide these parameters are no longer constant. Their vertical variation during a Gymnodinium catenatum red tide in the Ria de Vigo, Spain, in October 1986 is described. Stoichiometric equations are obtained for bio...
OBJECTIVE The aim of this study is to clarify the long-term dynamics of the red tide occurring in Lake Kawaguchi. METHODS The measurement of environmental factors and water sampling were carried out monthly at a fixed station in Lake Kawaguchi's center basin from April 1993 to March 2004. On June 26, 1995, the horizontal distribution ofPeridinium bipes was investigated using a plastic pipe, o...
[1] Independent data from the Gulf of Mexico are used to develop and test the hypothesis that the same sequence of physical and ecological events each year allows the toxic dinoflagellate Karenia brevis to become dominant. A phosphorus-rich nutrient supply initiates phytoplankton succession, once deposition events of Saharan iron-rich dust allow Trichodesmium blooms to utilize ubiquitous dissol...
In a previous study of ours, the superoxide scavenging activity of aqueous extracts from dinophycean red tide flagellates was detected by an electron spin resonance (ESR)-spin trapping method, but not by an L-012 (luminol analog)-dependent chemiluminescence (CL) method. To investigate the discrepancy between the two methods, the effect of ferric-protein complexes on superoxide scavenging activi...
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