Nutrient inputs from rivers play an important role in lake eutrophication. To compare the forms characteristics of phosphorus (P) and nitrogen (N) in rivers flowing through rural and urban areas, water samples were collected seasonally from five urban rivers and six rural rivers flowing to Lake Chaohu, China. Higher total phosphorus (TP), particulate phosphorus (PP), soluble reactive phosphorus...

The renewable pine needles was used as an adsorbent to remove phosphorus from aqueous solutions. Using batch experiments, pine needles pretreated with alkali-isopropanol (AI) failed to effectively remove phosphorus, while pine needles modified with lanthanum hydroxide (LH) showed relatively high removal efficiency. LH pine needles were effective at a wide pH ranges, with the highest removal eff...

Recent, studies have made it evident that phosphorus plays a more important Ale in the metabolism of infants, more especially in the metabolism of bone, than had been realized. It is therefore of increasing interest to inquire closely as to the distribution of the phosphorus in t,he dietary of the growing child. This naturally implies a study of milk, which forms the sole constituent of the die...

Coprecipitation with iron (Fe) plays an essential role in the biogeochemical cycles of organic carbon (OC) and phosphorus (P) lakes. The sources composition matter (OM) mediate its association iron, which could thus influence immobilization phosphorus. In this study, water-soluble from sediments two typical states shallow lakes, macrophyte-dominated zones (M-WSOM) algae-dominated (A-WSOM), was ...

Information on riverine phosphorus (P) dynamics during typhoon storm events remains scarce in subtropical regions. Thus, this study investigates the spatial and temporal dynamics of riverine phosphorus in a headwater catchment during three typhoon events. Continuous sampling (3 h intervals) of stormwater samples and discharge data were conducted at five locations, which represent the upstream, ...

The replacement of fishmeal with plant protein sources has been studied in Penaeus vannamei. However, it only from the point view replacement, forgetting integral role that plays nutrition shrimp. This study aimed to determine if a supplement dietary phosphorus can sustain by blend feedstuffs, betaine and tauren as attractants still supporting homeostasis, growth, digestive enzymes, lipid-solub...

The total ribonucleic acid fraction of mature ovarian eggs of amphibia and fish is composed of two gross fractions, one soluble in cold 0.5 M perchloric acid and the other insoluble in the acid (1, 2). Furthermore, on prolonged treatment with mild alkali, about 80% of the acid is converted to mononucleotides, some 20% being recovered as oligonucleotide fragments, a few of which contain labile p...