Abstract
There is an increased need for water conservation and protection for the sustainable livelihood of human beings as well as for the goodness of our environment. There is a greater awareness among the researchers, and Government organizations in the conservation of water resources in Central Amazonia region particularly in Ecuador. We have taken water sample from eight different sampling stations in the river Puyo, one of the major tributaries of river Amazon in South America. So far, no work has been carried out on the water quality of river Puyo to understand the biodiversity of macroinvertebrates and use of the same in the water quality assessment. Our final index included five matrices, namely Biotic index, Ephemeroptera,-Plecoptera-Trichopters (EPT) richness as richness measures, EPT and Chironomidae ratio, H’ and evenness (Hmax) to understand the water quality. We have also studied the physico chemical characteristics of water and coliform bacteria to assess the quality of water. All the values obtained reflect the quality of water in the sampling stations 1, 2, 3, 6, and 7, which are in the upstream located in the high altitudes as well as in the forest area, are better than the other three sampling stations 4, 5 and 8, which are located in the downstream in the urban area. In general, all the five sampling stations indicated more or less good water quality while the other three stations (4, 5 and 8) showed deterioration in water quality and thus necessitated a need for mitigation measure to save the Puyo river. The various metric values are (p value is > 0.05).
Highlights
As we discuss Internationally more and more about the world threatening factors namely climate change and Global warming, we cannot ignore its threat posed to the Biodiversity and sustainable livelihood of communities
Our aquatic ecosystems are fast deteriorating due to various anthropogenic activities.Aquatic macroinvertebrates are ubiquitous, and their sensitivity to environmental changes makes them good indicators of water quality
The main objective of the present study is to make the biosurvey of Puyo river in Puyo, Pastaza on macroinvertebrates with special reference to EPT index with Eight stations namely Fatima, Los America, UEA, Obrero, Picolina, Pindo Mirador, Union Base, and Santo Domingo located both in the forest and urban areas of Puyo
Summary
As we discuss Internationally more and more about the world threatening factors namely climate change and Global warming, we cannot ignore its threat posed to the Biodiversity and sustainable livelihood of communities. Our aquatic ecosystems are fast deteriorating due to various anthropogenic activities.Aquatic macroinvertebrates are ubiquitous, and their sensitivity to environmental changes makes them good indicators of water quality. Diversity and biotic indices for benthic macroinvertebrate samples are often applied in an attempt to measure river pollution [1]. According to Thuiller [2] Global change, population growth, and industrial development are currently exerting much impact on natural ecosystems, especially on aquatic systems. Biotic indices are tools for the sustainable management of water resources. They provide a coherent classification of water quality and allow for the
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