The discharge oiled terrestrial and aquatic vegetation, birds, sediments, soils, and other biota. Like most ecosystems, population changes among activated sludge biota can reduce treatment efficiency. Fish and other aquatic biota may be harmed by pesticide-contaminated water. Imbalances in the microbial biota can initiate oral diseases. Some of these species have caused several impacts in aquatic biota. The distribution of mires therefore depends on topography, climate, parent material, biota and time. The Ediacaran biota exhibited a vast range of morphological characteristics. Europe's Late Pleistocene biota went through two phases of extinction. Most of the biota is in serious danger of extinction. FEFU was able to establish the Research and Educational Center of Marine Biota. The most important factor affecting the biota is the duration of flooding. This is a list of all described Ediacaran genera, including the Ediacaran biota. In the 1960s, alewives constituted 90% of the biota in these lakes. These contain a rich southern biota; typical examples include birds such as ibis and egrets. It consists of 42% of all fossil finds in the Essex biota.