Evaluation of zoobenthic assemblages and recovery following petroleum spill in a coastal area of Rio de la Plata estuarine system, South America

被引：14
作者：
Ocon, C. S. [1 ]
Rodrigues Capitulo, A. [1 ]
Paggi, A. C. [1 ]
机构：
[1] Consejo Nacl Invest Cient & Tecn, UNLP, Inst Limnol Dr Raul A Ringuelet, RA-1900 La Plata, Argentina
来源：
ENVIRONMENTAL POLLUTION | 2008年 / 156卷 / 01期
关键词：
Petroleum spill; Zoobenthic macroinvertebrates; Biotic indices; Rio de Plata estuary; South America;
D O I：
10.1016/j.envpol.2007.12.035
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The objective of this work was to analyse zoobenthic assemblages in the coastal sector of the Rio de La Plata, Argentina, after a petroleum spill. Sampling stations were located in representative sites of various landscapes. Structure, composition, physico-chemical parameters and seasonal changes were recorded in order to assess taxocenosis evolution during the period 1999-2003. Recovery signs were estimated by means of biotic indices and the presence of sensitive species. Tolerant species were dominant in heavily polluted sites, with low diversity and water quality values, according to the biotic indices used. In certain zones, sediment quality remains impoverished, with a visible oil film on the surface. However, during the last sampling, some points showed an increase in biotic indices, pointing to a slight improvement in environmental conditions. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：82 / 89
页数：8
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