Nutrients and eutrophication: introduction
نویسندگان
چکیده
منابع مشابه
Nutrients and Eutrophication in the Taw Estuary
I. Increased inputs of nutrients to estuaries can lead to undesirable effects associated with eutrophication,including algal blooms, changes in species composition and bottom anoxia. Several estuaries and coastal areasaround the UK have increased nitrogen (N) and phosphorus (P) concentrations, elevated concentrations ofchlorophyll a and changes in algal community composition and...
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In the spring of 1998, 24-h time series and synchronization of vertical profiles of NO(3)-N, NO(2)-N, NH(3)-N, PO(4)-P, chlorophyll a, suspended substance, salinity, temperature and other chemical parameters were taken at 10 stations in the Pearl River estuary in order to analyze the status and characteristics of nutrients and eutrophication. The results indicated that dissolved inorganic nitro...
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Abstract. In this paper a non-linear mathematical model is proposed for a qualitative representation of ecosystem dynamics in a eutrophied water body. The model variables are the concentration of nutrients, densities of algal population, zooplankton population, detritus and the concentration of dissolved oxygen. The model consists of five coupled ordinary differential equations. By using the qu...
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A brief overview on the relevance in dietary factors in both development and prevention of cancer is presented. The pharmacologic properties of various food ingredients are discussed. Establishing of a special diet for the cancer patient is suggested. In addition, avoidance of certain foods is recommended to counteract mucus production of cancer cells. Evaluation of the nutrient content of cert...
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concept argue that from 9 to 23 percent of the cellular metabolic energy is required for the operation of the sodium pump (3). The question is, then, whether the cell can provide the energy necessary to pump potassium, calcium, magnesium, sugars, and amino acids if it takes 10 percent of the energy to run only one pump? Recently, some alternative hypotheses, often referred to, in general, as th...
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ژورنال
عنوان ژورنال: Marine and Freshwater Research
سال: 2013
ISSN: 1323-1650
DOI: 10.1071/mf13059