Title
Quality of the aquatic environment and diversity of benthic macroinvertebrates of high Andean wetlands of the Junín region, Peru
Date Issued
01 September 2018
Access level
open access
Resource Type
journal article
Author(s)
Publisher(s)
National Institute of Oceanography and Fisheries
Abstract
The objective of this study was to evaluate the quality of the aquatic environment and diversity of benthic macroinvertebrates of high Andean wetlands in the Junín region, Peru, between March and December 2017. Samples of water and benthic macroinvertebrates were collected from 22 sampling sites during the rainy season and low water. The physical-chemical indicators of water quality determined in situ were: DO, DTS, EC, temperature and pH. The results obtained reveal that the physical-chemical and bacteriological indicators are within the environmental quality standards for water, except COD and BOD5. Regarding the benthic macroinvertebrates, four phyla were identified, the most representative being the phylum Arthropoda in abundance and taxa richness. Therefore, according to the sampling period, highly significant differences were detected (p < 0.01) for conductivity, COD, temperature, nitrates and thermotolerant coliforms, and significant differences (p < 0.05) for DTS. According to the wetland, 100% of the indicators showed high significant differences. In addition, 70% of the indicators presented interaction according to sampling season and wetland. The greatest abundance and dominance were recorded in the Tragadero wetland and the greater richness, diversity and equitability of taxa in the Pomacocha wetland.
Start page
195
End page
202
Volume
44
Issue
3
Language
English
OCDE Knowledge area
Biología marina, Biología de agua dulce, Limnología
Subjects
Scopus EID
2-s2.0-85052793571
Source
Egyptian Journal of Aquatic Research
ISSN of the container
16874285
Sponsor(s)
The authors express our gratitude to the General Research Institute of the National University of Central Peru for the financing of the study, to the Water Research Laboratory for allowing us to make use of the equipment and materials for this study. María Custodio developed the concept and design of the field study and wrote the manuscript. She conducted analyses of benthic macroinvertebrate and thermotolerant coliform communities, provided interpretation of the data and verified laboratory database. Fernán Chanamé carried out the determination of physical-chemical parameters in situ and laboratory, Samuel Pizarro carried out sediment sampling, compiled the data and elaborated the location map of the wetlands under study, and Danny Cruz carried out the statistical analysis and drafting of the results section. All authors approved the final version before submission.
Sources of information:
Directorio de Producción Científica
Scopus