Influence of Water Quality on the Variation Patterns of the Communities of Benthic Macroinvertebrates in the Lakes of the Central Highlands of Peru

Abstract

The influence of water quality on the variation patters of benthic macroinvertebrate communities in the lakes in the central highlands of Peru was evaluated. Samples of water and sediments were collected in 23 different sampling sites last 2017. The physiochemical variables of water quality determined on site were: DO, TDS, EC, temperature and pH. The results obtained revealed that the physiochemical indicators are within the environmental quality standards for water, except COD and BOD 5. Regarding the benthic macroinvertebrates, four phyla were identified wherein the most common is the phylum Arthropoda having the abundance and richness of taxa. The PCA reduced the variables to a few significant components that caused variation in water quality between lakes. The cluster analysis in relation to the relative abundance of benthic macroinvertibrates grouped the 22 sampling sites into three groups with the similar characteristics. The PCoA analysis of the benthic macroinvertebrate communities showed a clear separation of sites. The SIMPER analysis at the family-level showed the distribution of the most common species. Therefore, at a significance level of 0.01 it demonstrates that there are significant differences between the number of species and abundance of the areas that were evaluated.

Spatiotemporal Variation of Benthic Macroinvertebrates in Some Tropical Forest Streams of the Nyong Catchment (Cameroon)

“…These temporal variations of the rarefaction curves could be conditioned by seasonal successions of the community structure. References [56] [57] [58] believe that abiotic gradients and other community assemblage rules also influence the evolution of stand structure.…”

Benthic macroinvertebrates community to response environmental factors in a crater lake (Case study: Lake Menjer, Indonesia)

“…The temperature ranged between 21-26 °C, which was lower than some lakes in the lowland area, for example, Lake Tempe which ranges between 29-31 °C [21], and Lake Toba at 26-28 °C [22] and 25-29 °C [23]. The water temperature of Lake Menjer was the typically low temperature for a highland lake, a similar pattern to the character of a lake in high altitude in Guatemala which ranged between 21 and 27°C [3], and lake in the central highland of Peru at 10-17 °C [18], though the water temperature of lake in Peru highland is much lower than in Indonesia. In this study, the low water temperature might control the abundance of Lymnaea (Gastropod) and Tanypus (Insects).…”

“…In addition, the composition of benthic macroinvertebrates at Site 3 was the most like each other in both dry and rain conditions (100%). In fact, benthic macroinvertebrates similarity analysis has often been used in freshwater ecosystem studies [11,18,19].…”