Assessing physical habitat structure and biological condition in eastern Amazonia stream sites

IF 5.1 Q1 ENVIRONMENTAL SCIENCES

Water Biology and Security Pub Date : 2023-04-01 DOI:10.1016/j.watbs.2022.100132

Jady Vivia Almeida da Silva Santos , Myllena Lima , Josinete Sampaio Monteles , Daiany Larissa Ribeiro Carrera , Ana Paula Justino de Faria , Leandro Schlemmer Brasil , Leandro Juen

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引用次数: 1

Abstract

The advance of agricultural frontiers and industrialization in Amazonia has increased natural resource deterioration, resulting in degraded physical habitat structure and reduced local aquatic biodiversity. We evaluated the relative sensitivities of the Biological Monitoring Working Party (BMWP) and Average Score Per Taxon (ASPT) biotic indexes based on EPT (Ephemeroptera, Plecoptera, Trichoptera) versus EPT taxa richness, EPT abundance, and Shannon-Wiener EPT diversity for evaluating anthropogenic impacts on Amazonian streams. We expected that EPT-BMWP and EPT-ASPT would be more sensitive in detecting environmental changes on stream biota than the other measures. We sampled 32 stream sites in eastern Amazonia distributed along an environmental gradient resulting from different land use intensities. All the biological metrics except EPT-ASPT were significantly responsive to anthropogenic pressures; however, EPT taxa richness was slightly more responsive.

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东亚马逊河流域河流遗址自然生境结构与生物状况评价

亚马逊地区农业前沿和工业化的推进加剧了自然资源的恶化，导致自然栖息地结构退化，当地水生生物多样性减少。我们评估了生物监测工作组（BMWP）和基于EPT（蜉蝣目、Plecoptera、Trichoptera）的每种紫杉醇平均得分（ASPT）生物指数与EPT分类群丰富度、EPT丰度和Shannon Wiener EPT多样性的相对敏感性，以评估人为对亚马逊溪流的影响。我们预计EPT-BMWP和EPT-ASPT在检测溪流生物群环境变化方面比其他措施更敏感。我们对亚马逊东部的32个溪流地点进行了采样，这些地点分布在不同土地利用强度导致的环境梯度上。除EPT-ASPT外，所有生物指标都对人为压力有显著响应；然而，EPT分类群的丰富度稍微更具响应性。

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来源期刊

Water Biology and Security

CiteScore

4.10

自引率

0.00%

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