Describe The Differences Between Two Different Streams

In site one there was a high proportion of very unspherical rocks. According to this the hypothesis is right, in site two there is a lot more smother rocks medium sized and in site 3 there are very small pebbles which are very smooth and spherical. The pebbles get smoother and rounder while it goes downstream. Due to us only taking about 10 rocks our result may have been not right as there were some pebbles which were largely over sized. Most of the other load is dissolved by solution such as limestone and chalk

The Devon River is clean, freshwater, and well dammed up. It is described as being a small, narrow river fringed by pine and birch (pg. 42) On the other hand, the Naguamsett River is described as muddy and

The purpose of this experiment was to improve our scientific literacy by studying the factors that shape biological communities. Packs of coniferous and deciduous leaves were placed in the Woods Creek River at the Virginia Military Institute to discover how aquatic macro-invertebrate communities are influenced by allochthonous material.

Starved rock and St. Peter Sandstone are an erosional remnant of Ordovician period. These remnants contain Pennsylvanian clastics that survived the washing out of the Illinois River at the end of the Ice Age. Evidence for swift, turbulent, and deep water includes gravel bars and erosional features as high as 160 feet above the current level of the river, massive cross bedded sand, and gravel deposits along the river course.

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.

The samples of unfiltered Rio Salado River water used in these experiments were collected from a site on the south bank of the river near S. 7th Ave. in Phoenix Arizona (see figure 1). The samples of water were collected by filling a three-gallon carboy by submerging it in the river. The carboy was then transported at ambient air temperature to the lab the same day it

Exercise Lab 1. How much does temperature vary in large and small aquatic environments? Lab 2. What determines the water clarity of lakes, rivers and oceans? Lab 3. Where does the phosphorus go? Lab 4. How does human activity in watersheds affect the quality of lakes and rivers? Lab 5. Are the Great Lakes being influenced by the global greenhouse effect? Lab 6. How is the flow of the Red Cedar River influenced by the weather? Lab 7. What is the relationship between flow and turbidity in the Red Cedar River? Page 2 4 6 8 12 15 18

At Laurel Hill Duke Forest there is a large granodiorite cliff adjacent to a river on one side. This cliff is not smooth and has several parallel fractures instead of one steep slope. Observations of this cliff were taken in order to gather data and find possible explanations for why this cliff is where it is located and why the river adjacent to it follows a V-shaped path. One observation was that the range of the strikes and dips of the fractures facing river were all near parallel ranging from strike of 170-190 degrees and dips ranging from 70-90 degrees. There were other fractures oriented differently on other sides of the outcrop. Also, the surface of the outcrop was highly weathered in some parts where the rock type was not distinguishable without using a rock hammer and had moss growing over it.

This Lower Keg River member was initiated by a rapid increase in sea level elevation flooding the salt plains of the Contact Rapids. Campbell (1987) described the Lower member of a dark micritic limestone, in a somewhat “euxinic” environment, containing bitumen and fauna such as brachiopods, crinoids, corals, stromatoporoids and gastropods. The unit can be locally dolomitized with a maximum thickness of approximately 50m. The Upper Keg River member was deposited during the restriction of marine waters by the Presqu’ile Barrier reef into the Elk Point Basin (Campbell, 1987). The interior of the basin contains Upper Keg River pinnacle reefs, banks and platforms. Campbell (1987) noted the spatial differences in the type of carbonate deposition within sub-basins; areas from the Peace River Arch to southern Alberta show a fringing carbonate platform, while the Rainbow, Zama and Shekelie basins contained the majority of the

Bioindicators of stream health include blackfly larvae, caddisflies, and algae. The presence of blackfly larvae indicates sewage pollution. Caddisflies indicate higher  O2 concentrations. The presences of algae can indicate different things. If algae is absent, there may not be enough nutrients to support its growth. Thick algae indicates eutrophication.  Previous studies by the Colorado Department of Health Water Quality Control Commission in 1981 show comparable amounts of dissolved  O2 as well as pH, nitrite, and nitrate levels in both Cherry and Bear creek. The  NH 3 levels were much higher in Cherry Creek at .10 mg/L compared to Bear creek where the  NH 3 levels were at .06 mg/L (Colorado 1981). In today’s society, it is important to find a balance between preserving the natural ecosystem and accommodating the wants, needs, and desires of the humans who affect it. (Meyer 1997). Pollution is inevitable but should be considered and kept as low as reasonably achievable.

Currently, La Nana Creek is secondarily fed by a small runoff streams which at one point were naturally occurring intermittent streams. Around approximately the 1950s, the stream

The average yield of total nitrogen between the two rivers differ. The Red River has a slightly higher nitrogen yield in the early data set (1992-1994) than the Sweetwater River (Figure 2A). Whereas, nitrogen yield in the Red River is significantly lower than the Sweetwater in 2005-2007 (Figure 2A). Comparing the two datasets corresponding to years, the Red River showed significant decrease in the average yield of nitrogen (Figure 2A). However, the Sweetwater nitrogen yield has dramatically increased since the earlier data collection (Figure 2A).

To further our analysis of the history of Colorado River streamflow, we prepared a histogram, Figure 4, to determine

The Wild River had an average discharge of 154 ft3/s; a minimum discharge of 9 ft3/s; a maximum discharge of 5463 ft3/s; a range of 5453 ft3/s; a maximum/minimum ratio of 589 ft3/s and a standard deviation of 394 with a coefficient variation 2.56 (see Table

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.