Inter-annual changes in fish communities of a tropical bay in southeastern Brazil: What can be inferred from anthropogenic activities?

被引：35

作者：

Araujo, Francisco Gerson ^{[1
]}

Pinto, Samara Macedo ^{[1
]}

Neves, Leonardo Mitrano ^{[1
]}

Costa de Azevedo, Marcia Cristina ^{[1
]}

机构：

[1] Univ Fed Rural Rio de Janeiro, Lab Ecol Peixes, BR 465,Km 7, BR-23890000 Rio De Janeiro, Brazil

来源：

MARINE POLLUTION BULLETIN | 2017年 / 114卷 / 01期

关键词：

Estuarine fish; Environmental factors; Depth gradient; Temporal changes; Tropical systems; Brazil; LONG-TERM CHANGES; RIO-DE-JANEIRO; SEPETIBA BAY; MICROPOGONIAS-FURNIERI; ASSEMBLAGE STRUCTURE; TRANSITIONAL WATERS; ESTUARY; SE; SEDIMENTS; INDICATORS;

D O I：

10.1016/j.marpolbul.2016.08.063

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We assessed inter-annual changes in fish assemblages of a tropical bay which experienced a heavily industrialized process in the last decades. A highly significant difference in community structure among the bay zones, and a decrease in fish richness and abundance over time were found. Changes in fish richness and abundance between the two first (1987-1988 and 1993-1995) and the two latter time periods (1998-2001 and 2012-2013) were sharpest in the inner bay zone, the most impacted bay area, and in the middle zone, whereas the outer zone remained comparatively stable over time. These changes coincided with increased metal pollution (mainly, Zn and Cd) in the bay and with the enlargement of the Sepetiba Port. Spatial changes in the fish community structure among the bay zones were related to differences in salinity, transparency and depth with this latter variable acting as a buffer stabilizing temporal community changes. (C) 2016 Elsevier Ltd. All rights reserved.

引用

收藏

页码：102 / 113

页数：12

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