Relationship Between Abiotic And Biotic Factors

The health of the Susquehanna River and Chesapeake Bay was found based on Biological (macroinvertebrates and wildlife) and Chemicals characteristics (pH, dissolved oxygen, phosphates, nitrates, etc.) as well as physical observations (amount of forested buffers, wetlands, etc.) Overall it was concluded that the health of the water was good to excellent. What was found was that many of the macroinvertebrates found in the water were sensitive or facultative, meaning the water quality was good enough for them to live in. Also, the level of ph, temperature, dissolved oxygen, phosphates, nitrates, and turbidity showed that the water quality was good. Finally, while we were canoeing down the Susquehanna River, observations were made on the land

At the first station I was at, we were looking for macroinvertebrates and crustaceans. When we found one of the insects we had to determine which group they belonged in. One way to determine if the water is polluted is to look at which group the critters are mostly from. My group and I tested this by taking turns going into the creek and finding a rock to bring out. When we brought the rock out of the water and back to our group we had to make sure to turn the rock over because the critters normally live on the bottoms of the rocks and most likely would fall off if you didn’t turn it over. After we all took turns a couple of times

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.

Ecosystems have a way of maintaining themselves under ordinary conditions but when a new factor is added that will most likely threaten the environment action needs to be put forth. Our environment is affected by many pollutants on a daily bases forming a threat to natural stability. For example some of the most polluted parts of the environment are bodies of water like that explained in our lab. Once pollution occurs animals can be affected in many ways even to the brink of death. In the lab the stream is getting pumped with salty potassium filled water that can kill daphnia, habitants of the stream, if the concentration gets too high. To prevent this a

The change in season’s results in differences in the flow, size and overall function of the lake, stream, or river and therefore the constant monitoring of these systems are beneficial to determine ecosystem characteristics and patterns (Lenat, 1988).

Different aquatic invertebrates live in different micro habitats (smaller habitats) at Lake Tonetta. Some live on the surface of the water. Others live in the bottom of the lake, or deep within the sediments at the bottom of the lake. The water pH is important because they only can live in a specific pH 6.5-7.5.When we visit the lake our group checked the biodiversity (The variety of plants and animal species in an environment)of Lake Tonetta by counting the aquatic invertebrates in a sample obtained using dip nets and bottom scrapers. During our trip, we found beetles, snails, worms ,

Heath Creek, located in Northfield, MN, was sampled at four locations: A, B, C and D in which each location was measured for depth and sampled for macroinvertebrates. Locations A, B, C, and D were respectively labeled according to the downward flow of Heath Creek into Cannon River, with Location A being farthest away from the end and Location D being near the merge of Heath Creek and the Cannon River. In every location, an area of 21 meters was measured and divided into three sections of 7 meters. In each section, the depth for the deepest and most shallow sites were measured, followed by a collection of two separate representative samples of the deepest and most shallow sites. Sampling was performed through a minute of D-net jabbing and another

On April 6th 2013, our Biology II lab evaluated the health of two freshwater streams in the Denver area. Both creeks flow to the South Platte River but are situated in different environments (urban and suburban) which cause variance in biotic and abiotic indicators of stream health. The presence or absence of bioindicators is dependent on the water chemistry. Through the study of stream health, we can gain insight on the stress that humans cause to freshwater habitats. I think that Bear Creek is healthier than Cherry Creek because it is in a less urban environment and is less affected by human influences. If the

According Oraclethinkquest, "Water pollution has the potential to have a harmful effect on all living things including plants and animal species. Chemicals, radioactive waste, industrial waste in the water can affect species and their development. There is no

All around the world, countries are fighting to keep their drinking water clean. Whether it’s streams, rivers, or lakes, countries have taken great measures to maintain high quality drinking water for both human consumption and animal consumption. Countries must first understand the sources of the polltion, then determine the best methods to eliminate the pollution. Clean drinking water is a valuable resource and a the key to human survival. Plants and animals also depend on water for their growth, so all water must be kept clean. The major contributors to water pollution can be classified in three categories, industrial, agricultural and municipal.

One of the most significant concerns that have existed in the ecosystem for decades now is the issue of pollution. Pollution in itself is the destruction of the normal concentration and manifestation of factors such as water, soil, air and others in the ecosystem. This destruction largely arises from the human activities that often lead to misbalance, increased wastes concentration and improper positioning of the necessary and unnecessary additions to the environment. This often leads to the destruction of biodiversity, which is an important balance to the whole cycle of living organisms in that they support each other for their co-existence. If at all the number of animals reduce in the world to a very small number then a threat is posed to the living organisms since it will translate to it having to reduce also (Turner 2014).

Class input data into excel and a class mean and standard deviation was gathered from both wetlands for each species. Excel was used to produce the mean and standard deviation for all data, then graphed for ease of interpretation.

The patterns of biological diversity in rivers and streams among taxa vary on a spatial and temporal scale (Ligeiro et al. 2010; McGarvey and Terra 2015). Variations in stream ecology can be contributed to water quality, habitat, and history of disturbance (Lingeiro et al. 2010). Creeks and streams feed into rivers and other larger bodies of water, which provide food, water, and other commercial and recreational services as well as a home to an array of plants and animals which rely on clean water. The health of these smaller bodies of water can act as indicators for the health of the larger watershed.

Water pollution affects plants and organisms living in these bodies of water; and, in almost all cases the effect is damaging not only to individual species and populations, but also to the natural biological communities.

Agriculture is one of the major sector becoming vulnerable to climate-change. Increased incidences of abiotic and biotic stresses are likely to cause serious negative impact on crop production. Abiotic stress is defined as the negative impact of non-living factors on the living organisms in a specific environment. The non-living variable must influence the environment beyond its normal range of variation to adversely affect the performance or individual organism in a significant way. This leads to decrease in the productivity by more than 50% in major crop plants which are growing word wide (Bray et al., 2000). Increased water stress, reduction in rainfall and increased air temperature are the major reasons for yield decline in wheat and paddy crops in many parts of South Asia. The average increase in temperature per decade is measured to be 0.28 ºC over land and 0.12 ºC over ocean and predicted that it is likely to rise further to a maximum of 2.5 ºC by 2050 and 5.8 ºC by 2100 (Jones et al., 1999; Grover et al., 2011). The principal abiotic stresses in India are drought or soil moisture stress, high temperatures, soil salinity/alkalinity, low pH and metal toxicity stresses that affect nearly two-thirds area forming parts of the arid and semi arid eco systems (Grover et al., 2011).