Seasonal changes of water quality in a tropical shallow and eutrophic reservoir in the metropolitan region of Recife (Pernambuco-Brazil)

被引：12
|
作者：
de Oliveira, Fabio H. P. C. [1 ]
Capela e Ara, Andre L. S. [2 ]
Moreira, Cesar H. P. [3 ]
Lira, Osman O. [4 ]
Padilha, Maria Do Rosario F. [2 ]
Shinohara, Neide K. S. [2 ]
机构：
[1] Companhia Pernambucana Saneamento COMPESA, Lab Hidrobiol, BR-52071440 Recife, PE, Brazil
[2] Univ Fed Rural Pernambuco UFRPE, Dept Gastron, BR-52171900 Recife, PE, Brazil
[3] Univ Fed Rural Pernambuco UFRPE, Dept Ciencias Biol, BR-52171900 Recife, PE, Brazil
[4] Fundacao Nacl Saude FUNASA, Lab Controle Qualidade Agua, BR-52050020 Recife, PE, Brazil
来源：
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS | 2014年 / 86卷 / 04期
关键词：
coliforms; cyanobacteria; reservoir; trophic state; PHYTOPLANKTON FUNCTIONAL-GROUPS; TOXIN-PRODUCING CYANOBACTERIA; SAO-PAULO; POPULATION-DYNAMICS; NORTHEASTERN BRAZIL; TEMPORAL VARIATION; GARCAS POND; COMMUNITY; LAKES; BLOOMS;
D O I：
10.1590/0001-3765201420140128
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
This study investigated the water quality in an urban eutrophic reservoir in Northeastern Brazil, considering the influence of seasonality. Monthly, samples were collected in the sub-surface reservoir. The following abiotic variables were analyzed: temperature, pH, dissolved oxygen, apparent color, turbidity, conductivity, fluoride, total nitrogen, chlorides, total dissolved solids, total hardness, iron, copper, manganese, aluminum, chlorophyll-a and phaeophytin. Total and thermotolerant coliforms were analyzed according to APHA (2012). Cyanobacteria density was quantified through its biomass. The data were analyzed using one-way ANOVA and Pearson correlation test. Higher values mean phytoplankton biomass (26.3mm(3).L-1) occurred in the dry season, especially Planktothrix agardhii and Geiterinema amphibium, which occurred in 100% of samples. High trophic state index was detected throughout the year. Seasonality exerted some influence on both biotic and abiotc variables, leading to changes in water quality of the reservoir.
引用
收藏
页码：1863 / 1872
页数：10
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