Bacterial Community Composition ( BCC ) In Lakes Of Tibetan Plateau

The Great Salt Lake is located in the northern part of Utah. The lake has a high salinity and although it has more salt than seawater it is still able to sustain different species like birds or shrimps unlike the Dead Sea. The standard microbes that are a part of the ecosystem of the northern part of the lake in order of most populated: bacteria of at least two genera,Halobacterium and Halococcus; two algae ,Dunaliella salina and D. Viridis. The algae and bacteria live off each other by being the others nutrients. The reason for this is because bacteria produce ammonia, which algae uses for nutrients, while the organic matter that algae makes is used by bacteria as nutrients. Animals eat algae and cold temperatures during winter stunt metabolism

Through our research we aimed to determine if there were any differences in water quality of both the north and south forks of Strawberry Creek. As time progresses and the environment changes it is important to keep track of how certain species are being impacted by these features, and how they cope with change. We hypothesized that due to the lack of pollution, the south fork will promote a greater diversity of macroinvertebrates. This was due to the fact that there was less runoff and trash that could be introduced to the water in the south fork, than there was in the north fork. We gathered data by analyzing the different organisms living in both forks. We collected a total of fifty vials composed of five organisms from each fork, and inspected them under microscopic view. After gathering data and identifying the different kinds of organisms living in the different forks we assessed whether the organisms from the samples could live in high or low resolution water. We also took a t-test to assess the probability of these differences being due to relevant factors or by chance. Our major findings suggest that organisms in the south fork showed a higher demand to living in cleaner water indicating that our hypothesis was correct.

Gunnarsdottir, M. J., Gardarsson, S. M., & Andradottir, H. O. (2013). Microbial contamination in groundwater supply in a cold climate and coarse soil: case study of norovirus outbreak at Lake Mývatn, Iceland. Hydrology Research, 44(6), 1114-1128. doi:10.2166/nh.2013.076

Any conditions that harm such a balanced environment can potentially destroy thousands of organisms that live there. Since phosphates are common pollutants of lakes, in this project I

The quality of lakes around the world are slowly being decreased, due to factors such as pollution, littering, not enough exposure to sunlight, and generally a clack of biotic factors. This is why it is important to assess the health of lakes around the area and analyse if the lake is habitable and healthy. The lake that will be assessed is Lakewood Lake, located in the Brisbane area near Lakewood. The health of Lakewood Lake is in question as biotic and abiotic factors will be tested to assess the health of the lake. Biotic factors such as living organisms or and form of wildlife around the water, and abiotic factors such as the temperature of the water and air, pH levels, dissolved oxygen, conductivity in the water, the moisture and pH levels

The purpose of this study was to collect data that can be used to assess the current status of a lake in terms of stratification, productivity, succession, nutrient composition, transparency, and management. The field site was 85 acre, man-made lake within Miami Whitewater Forest in “Great Parks” of Hamilton County, Cincinnati, OH. Although the lake is man-made, it shares many characteristics with that of natural lakes. The data collected regarding the current status of the lake would then be compared against past, historical data to draw on any similarities or differences between the lake then and now. Results demonstrated the lake to be stratified in the past and present according to temperature and pH. Results from secchi disks

The objective of this experiment was to investigate the response of Blepharisma americana, Paramecium caudatum, Euplotes, and Vorticella microorganisms to the acidification of their environment and the impact of acidification on the their community diversity. We hypothesized that lower pH values would cause Ciliophora community diversities and health to decline.

An ecosystem consists of both all the populations of organisms and all of the non-living factors in that given area. Ecosystems are affected by both abiotic and biotic factors. These factors include pH, temperature, nitrate, phosphate, gas exchange, and light intensity (Wischusen). The ecosystem studied in this experiment was the LSU Lake System, in particular, the LSU University Lake. Two experiments were conducted involving the population ecology and community ecology of the LSU University Lake. Ecology is the scientific study of the interactions between organisms and the environment (Campbell and Reece 2011). Specifically, growth of the organism Chlamydomonas was studied and observed. Chlamydomonas reinhardtii is the scientific name for a type of unicellular

In the surface water samples (lake and mountain samples), there were coliform bacteria contaminants and nitrate contaminants. More specifically, the lake water sample had coliform bacteria contaminants, and the mountain water sample had nitrate contaminants.

Prokaryotes were the earliest organisms on earth. Some of these organisms were photosynthetic which helped from the accumulation of oxygen gas in earth’s atmosphere (This actually hurt a lot of the prokaryotes over). Prokaryotes are found almost everywhere, including bodies of other organisms. They even live in extremely harsh environments like areas of high salinity or temperatures very high or low. They reproduce extremely fast which means they evolve fast and why they are very diverse. This is why bacteria can build up resistance to antibiotics very quickly.

Glaciers are one of the most fundamental phenomenon on the planet, and much of their purpose and impact on earth has been well documented and published. Ice sheets, Ice Caps and Glaciers trap nearly 90% of the world's fresh water, and are replenished by snowfall each year. Their existence on this planet dates back 650,000,000 years and yet they are always moving, always shifting and always melting. Before, human existence and even during the brief era of humans, ice dominated all of the earth's landmass and have regulated, created and altered many of the landscapes around the world.

abiotic and biotic factors and how they influenced each other in a small freshwater ecosystem.

Many lakes across the globe are home to a wide variety of organisms, which are supported by both the lakes themselves and by the abundance of varying habitats surrounding them. Lake Naivasha (0°45’N, 36°20’E) is one such lake: Situated within the rift valley, Lake Naivasha is a freshwater home to an abundance of both native and alien flora and fauna, both aquatic and terrestrial (Otiang’a-Owiti & Oswe, 2007). The lake has 3 main surface inflows; from the Malewa, Gilgil and Karati rivers, but is an endorheic lake (Otiang’a-Owiti & Oswe, 2007); so is a closed hydrological system on the surface (Figure 1). Nevertheless, it is thought that water from the lake does move southward underground, through volcanic rocks (Clarke et al., 1990, Ojiambo et al., 2001). There are various factors that contribute to the biodiversity of the lake; however one the most predominant factors is the impact that the steep increase in Naivasha’s population has had on the lake. 70% of Kenya’s horticultural output is produced in the Lake Naivasha area (Otiang’a-Owiti & Oswe, 2007), which makes it an area of extreme national economic importance. Due to this thriving industry, the lake’s population has risen from an estimated 7,000 in the 1969, to approximately 300,000 in 2007 (Ouma Oloo, 2007). This rapid population growth has had effects on many components of the ecosystem, including changes in lake levels and water composition, loss of habitats, introduction of alien species and decline in many species

Phytoplankton are autotrophic drifter microorganisms that obtain energy from photosynthesis. They serve as the primary producer for aquatic food web, and are often accredited for their importance in carbon cycling. They are mainly found near the surface of freshwater and diluted seawater environment, known as the euphotic zone, to gain maximum exposure to sunlight and maximize rate of photosynthesis (Reynolds 1984). In addition, they produce a surface mucus zone that is rich on nutrient and organic compounds, which attract heterotrophic bacteria to preform chemotaxis and interact with the host phytoplankton, and this microenvironment is known as the phycosphere. This mucilaginous microbiome are globally distributed, though they are mainly concentrated at the central zones of freshwater or dilute seawater environment (Sogee 2015).

Environmental microbes are microorganisms that are capable of adapting and occupying a wide range of environmental conditions. Their biodiversity is well represented within the three major domains of life and can even extend into the ambiguous realm of viruses. As their categorical name indicates, environmental microbes can be found distributed throughout distinct ecological niches and based on their specific biological interactions within each ecosystem microbes can confer beneficial, adverse or neutral consequence to other surrounding life forms. In this experiment, we are interested in analyzing the air samples within the MIC 104 laboratory in order to determine the abundance of airborne species. Based on the biological restrictions imposed by the laboratories relative aseptic