Sewage pollution impact on Mediterranean rocky-reef fish assemblages

被引：43

作者：

Azzurro, Ernesto ^{[1
]}

Matiddi, Marco ^{[2
]}

Fanelli, Emanuela ^{[3
]}

Guidetti, Paolo ^{[4
]}

La Mesa, Gabriele ^{[2
]}

Scarpato, Alfonso ^{[2
]}

Axiak, Victor ^{[5
]}

机构：

[1] ISPRA, High Inst Environm Protect & Res, Lab Milazzo, I-98057 Milazzo, ME, Italy

[2] ISPRA, I-00166 Rome, Italy

[3] ICM CSIC, Inst Ciencies Mar, Psg Maritim Barceloneta, Barcelona 08003, Spain

[4] Univ Salento, Lab Zool & Marine Biol, DiSTeBA, CoNISMa, I-73100 Lecce, Italy

[5] Univ Malta, Dept Biol, MSD-2080 Msida, Malta

来源：

MARINE ENVIRONMENTAL RESEARCH | 2010年 / 69卷 / 05期

关键词：

Sewage impact; Fish assemblages; Opportunistic species; Sensitive species; Visual census; WATER-QUALITY; MARINE COMMUNITIES; COASTAL; INDICATORS; ECOSYSTEMS; DISCHARGE; GRADIENTS; HABITATS; DISPOSAL; STRESS;

D O I：

10.1016/j.marenvres.2010.01.006

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The effects of sewage outfalls on subtidal fish assemblages were studied along the NW coasts of Malta (Sicily channel, Mediterranean Sea) by means of underwater visual census. The presence of two spatially distinct outfalls discharging untreated wastewaters allowed to use a balanced symmetrical after control/impact (ACI) design that consisted of two putatively impacted locations and two controls, with four sites nested in each location Surveys were performed in 2006 at two random dates The study highlighted significant changes at both assemblage and individual species levels Fish assemblages structures were different between controls and sewages, where total abundance of fish were higher The responses of individual species to sewage pollution were mostly related to an anomalous increase of two small opportunistic species i e Gobius bucchichn and Parablennius rouxi and to a decrease of species of the genus Symphodus, particularly S roissali and S ocellatus Moreover in correspondence of the outfalls, significant changes of the fish size distribution were detected for several species. These results support the use of fish assemblages as biological indicators for marine coastal waters and demonstrated the possibility to obtain sharp signals of environmental impact from some individual fish species (C) 2010 Elsevier Ltd All rights reserved

引用

页码：390 / 397

页数：8

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