Benthic macroinvertebrate assemblages as indicators of water quality applying a modified biotic index in a spatio-seasonal context in a coastal basin of Southern Chile

被引：34

作者：

Fierro, Pablo ^{[1
]}

Bertran, Carlos ^{[1
]}

Mercado, Maritza ^{[2
]}

Pena-Cortes, Fernando ^{[3
]}

Tapia, Jaime ^{[4
]}

Hauenstein, Enrique ^{[3
]}

Vargas-Chacoff, Luis ^{[1
]}

机构：

[1] Univ Austral Chile, Inst Marine Sci & Limnol, Valdivia, Chile

[2] Benthos, Lab Aquat Entomol, Valdivia, Chile

[3] Univ Catolica Temuco, Terr Planning Lab, Temuco, Chile

[4] Univ Talca, Inst Chem & Nat Resources, Talca, Chile

来源：

REVISTA DE BIOLOGIA MARINA Y OCEANOGRAFIA | 2012年 / 47卷 / 01期

关键词：

Seasonality; Chilean rivers; DISTRIBUTION PATTERNS; TEMPORAL VARIABILITY; STREAM; RIVER; COMMUNITY; BIOASSESSMENTS; LEVEL; FAUNA;

D O I：

10.4067/S0718-19572012000100003

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

The water quality in a Southern Chile river was characterized using the Biotic Index in a spatio-seasonal context, to analyze the composition and distribution of benthic macroinvertebrates and their correlation with 14 physico-chemical parameters. Sampling was done over a year at 5 sampling stations in the basin of the Boroa River. A total of 77 taxa were recorded, with the most represented orders being the Ephemeroptera (43.30%), Diptera (24.16%) and Plecoptera (18.03%). The most abundant species were Meridialaris diguillina, Nousia maculata (Ephemeroptera) and Limnoperla jaffueli (Plecoptera). According to the modified FBI (Family Biotic Index), the findings indicated excellent, very good and good water quality, the latter quality being registered principally in winter. Likewise, the physico-chemical parameters indicated exceptional water quality. These results suggested a low level of anthropogenic impact in the basin. Applying the modified Hilsenhoff Biotic Index based on macroinvertebrates, the influence of seasonality on water quality was evident.

引用

页码：23 / 33

页数：11