Diversity in Anthropogenic Environment – Permanent Puddle as a Place for Development of Diatoms

Abstract

Specific conditions in urban areas favour large species richness, these are also places prone to the anthropogenic pressure. As a result, many studies on aquatic habitats in urban ecosystems have been carried out. The aim of this study was to investigate the diversity of diatom assemblages developing in artificial environment in relation to water chemical parameters. The study was performed on a small water outflow in south-eastern Poland, which started in the storm sewage. The water at the studied sites was characterized by alkaline pH and low content of nutrients. The values of other chemical parameters were highly variable, depending on the research season. A total of 113 taxa were identified in five research seasons; most of them prefer circumneutral and fertile habitats, with a high content of biogens and are tolerant to water pollutions. Aerophytic and terrestrial taxa were observed in the analyzed materials in high diversity.

Phytoplankton Dynamics of Mokolo and Mopa Ponds in Bertoua City (East-Cameroon)

“…The high abundance of Diatoms in the two ponds despite their low motility could be explained by the cosmopolitan nature of these organisms with a strong capacity to adapt to variations of environmental conditions and to various environments. Their distributions throughout the water column are related to winds and rains that generate strong turbulence, allowing the resuspension of Diatoms and other algae that tend to sink because of their densities, which are always slightly higher than the water, and to be found in the euphotic zone when they are below [29]. The high abundance of Chlorophyceae is explained by the very high levels of nitrogen elements recorded during the study period, making this nutrient the limiting factor in all the ponds studied.…”

Diatoms (Bacillariophyta) from the Genus Eunotia and Pinnularia developing on Soils in the Open Landscape of the Low Beskids

“…Pinnularia cuneola is mentioned in the taxa lists from Romania (Caraus 2017) and the Netherlands (Veen et al 2015). It was also found in a small puddle in Stalowa Wola (Rybak et al 2019). Until now, the species has not been reported in soils, and studies have shown that it can also develop in this habitat, especially on sthe oils covered with mosses.…”

Spider webs in monitoring of air pollution

“…Since Xiao-li et al [5], research on spider webs have been conducted in Poland by Rybak at al. and focused mainly on road traffic emissions [7][8][9][10][11]. Rybak investigated cumulative ability of spider webs to heavy metals across Wrocław, Lower Silesia.…”

“…They are commonly found in urbanized areas like road tunnels, bridges, parking lots and homesteads. Webs of Agelenidae, Pholcidae and Linyphiidae family proved to be excellent bioindicators of atmospheric pollutants [7][8][9][10][11].…”