Foraminifera as indicators of marine pollutant contamination on the inner continental shelf of southern Brazil

被引:30
作者
Eichler, Patricia P. B. [1 ]
Eichler, Beatriz B. [1 ]
Sen Gupta, Barun [3 ]
Rodrigues, Andre Roesch [2 ]
机构
[1] Univ Fed Rio Grande do Norte, Ctr Ciencias Exatas, Dept Geol, BR-59072970 Natal, RN, Brazil
[2] Univ Sao Paulo, Inst Oceanog, BR-05508120 Sao Paulo, Brazil
[3] Louisiana State Univ, Dept Geol & Geophys, Baton Rouge, LA 70803 USA
关键词
Foraminifera species diversity; Environmental parameters; Pollution indicators; Sewage outfall; Salinity; Coliforms; RIO-DE-JANEIRO; BENTHIC FORAMINIFERA; BAY; IMPACT;
D O I
10.1016/j.marpolbul.2011.10.032
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Analyses of living foraminiferal and environmental parameters near an outfall at Mar Grosso Beach (Laguna, SC, Brazil) demonstrate its usefulness as indicators of domestic sewage pollution. The low species diversity may be due to sand accumulation in the central part. Higher diversity was noted closer to the mouth of Laguna estuarine system where reduced salinity and higher temperatures indicate freshwater influence, suggesting a relationship between increased diversity and greater availability of terrestrial food. On the basis of foraminiferal diversity and average coliform count the higher values are closer to the mouth of the estuarine system and under the influence of the outfall. Due to the effect of local hydrodynamics, the particulate organic waste derived from the outfall does not settle down locally, and thus, do not accumulate nearby. Our hypothesis is that the fine material derived from the outfall is accumulating on the southwestern and northwestern parts of the beach. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:22 / 30
页数:9
相关论文
共 37 条