Study of different forms of phosphorus in the Amazon continental shelf waters

Química Nova

Feitosa, Fernando Antonio do Nascimento¹  Muniz, Kátia¹  Barros Neto, Benício de¹  Universidade Federal de Pernambuco, Recife, Brasil¹  Universidade Federal do Pará, Bragança, Brasil¹  Santos, Maria de Lourdes Souza¹ 

关键词: Amazon;    phosphorus;    chlorophyll a.;   

DOI  :  10.1590/S0100-40422007000300012

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Hydrological samples were collected on the continental shelf of the Amazon river to determine particulate organic and inorganic matter, dissolved organic phosphorus (DOP), phosphate, total particulate phosphorus (TPP), chlorophyll a, temperature, salinity, pH, water transparency, dissolved oxygen (DO) and saturation rate. The objective was to study the forms of DOP, phosphate and TPP. In the euphotic layer, the fluvial discharge from the Amazon river favored the distribution of phosphate, TPP and DOP. In the aphotic layer, the phosphate concentration increased due to the decomposition of DOP and TPP. This increase is due to the absence of photosynthetic processes.

【 授权许可】

Unknown