Análisis de las comunidades macrobentónicas en un lago en el hoyo de una mina de azufre (Polonia)

Abstract

The objective of the study was to define the primary environmental factors affecting the composition of the macrobenthic community in an abandoned open cast sulphur mine pit lake that had been filled with water from a nearby river. We investigated habitats at various depths and the macrobenthic communities; samples were collected by scuba divers. Although rush and submerged vegetation in the subsaline pit lake was abundant and provided potentially good habitat conditions for mayflies, caddisflies, coleopterans, or damselflies, the native insects were scarce. The taxa do not have many representatives in waters with elevated salinity, so those present in the Machów pit lake were mainly euryhaline species. Chironomids were the most abundant macroinvertebrates in shallower zones, whereas non-native zebra mussels were the quantitatively dominant taxon in deep-water zones. Moreover, these non-native mussels were the dominant biomass of invertebrates at all sites in all seasons. The current composition of the invertebrate assemblage was probably primarily determined by the salinated water, which limited the abundance of native species and gave non-native species an edge.

Synthetic Analysis of Thematic Studies towards Determining the Recreational Potential of Anthropogenic Reservoirs

“…A common way to use flooded post-mining pits is to transform them into fishing grounds. This requires a number of preparatory works, not only because of the need to ensure the quality of the water itself, but also because of the need for adequate stocking of the reservoir in question [84]. By recreational use of the reservoir, we mean both active recreation (e.g., using water equipment, swimming) and passive recreation (e.g., sunbathing).…”

Closing pit lakes as aquatic ecosystems: Risk, reality, and future uses

“…A saline pit lake in Poland (Mach ow) was rehabilitated as an aquatic ecosystem using buried waste, sculpted littoral zones, and river connection (Bylak et al, 2019). However, the macroinvertebrate community was less rich and more invasive than expected and may have been limited by salinity.…”

The future direction of pit lakes: part 1, Research needs

“…How riparian and littoral vegetation adapt to pit lake water quality issues such as low pH, elevated contaminant concentrations, or salinity is also a complication for many pit lake ecosystems compared to natural systems where communities have evolved alongside ambient conditions (Bylak et al 2019;.…”