Efficiency of Surber net under different substrate and flow conditions: insights for macroinvertebrates sampling and river biomonitoring

IF 1.6 3区环境科学与生态学 Q3 FISHERIES

Knowledge and Management of Aquatic Ecosystems Pub Date : 2020-01-01 DOI:10.1051/kmae/2020001

A. Doretto, T. Bo, F. Bona, S. Fenoglio

引用次数: 11

Abstract

In biomonitoring great attention has been paid on the selection of the best indices and metrics, often neglecting a simple but fundamental aspect: how reliable are the sampling methodologies? We tested the efficiency of the Surber net in collecting stream macroinvertebrates by comparing two samples collected consecutively on the same plot. We found that substrate particle size and water depth and velocity significantly affected sampling efficiency, especially regarding the total taxa richness, EPT (Ephemeroptera, Plecoptera and Trichoptera) richness and density. This study therefore provides useful insights to collect stream macroinvertebrates using the Surber net under different near-bed conditions.

查看原文本刊更多论文

不同基质和水流条件下Surber网的效率:大型无脊椎动物采样和河流生物监测的见解

在生物监测中，人们把很大的注意力放在选择最佳指数和指标上，往往忽略了一个简单但基本的方面:抽样方法的可靠性如何?我们通过比较在同一地块连续采集的两个样本，测试了Surber网采集溪流大型无脊椎动物的效率。研究发现，基质粒径、水深和流速对采样效率有显著影响，特别是对总分类群丰富度、EPT (Ephemeroptera, Plecoptera, Trichoptera)丰富度和密度有显著影响。因此，本研究为在不同近床条件下使用Surber网收集溪流大型无脊椎动物提供了有用的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Knowledge and Management of Aquatic Ecosystems 环境科学-海洋与淡水生物学

CiteScore

3.70

自引率

5.60%

发文量

审稿时长

>12 weeks

期刊介绍： Knowledge and Management of Aquatic Ecosystems (KMAE-Bulletin Français de la Pêche et de la Pisciculture since 1928) serves as a foundation for scientific advice across the broad spectrum of management and conservation issues related to freshwater ecosystems. The journal publishes articles, short communications, reviews, comments and replies that contribute to a scientific understanding of freshwater ecosystems and the impact of human activities upon these systems. Its scope includes economic, social, and public administration studies, in so far as they are directly concerned with the management of freshwater ecosystems (e.g. European Water Framework Directive, USA Clean Water Act, Canadian Water Quality Guidelines, …) and prove of general interest to freshwater specialists. Papers on insular freshwater ecosystems and on transitional waters are welcome. KMAE is not a preferred journal for taxonomical, physiological, biological, toxicological studies, unless a clear link to ecological aspects can be established. Articles with a very descriptive content can be accepted if they are part of a broader ecological context.