Characteristics Of A Freshwater Lake

13) [2.1] Is there a difference in the biology of these two phytoplankton that might be related to what is happening in this lake? (Look back at the natural history if you need to.)

Due to excess of amount of sunlight during summer time, the overall net primary productivity would increase, meaning the rate of photosynthesis would increase because sunlight could provide more nutrient to organisms at deeper site of the water.

“Greasy Lake” was published in 1985 along with other stories from the author, T. Corahessan Boyle. The story is a gripping tale of three teen boys ‘living on the edge’, in which the author presents himself and his friends as a group of dangerous individuals. One would think that the narrator has truth in his words, but all events in the story point to the contrary. T. Corahessan Boyle, or T. C. Boyle for short, is an unreliable narrator. The truth of this story is not in the text, but in the underlying meanings and subliminal nuances. This hidden reality really helps the reader make a direct judgment of the characters. After reading between the lines, one quickly finds out who the characters are, but more

Consumers will consume oxygen and these will take the oxygen from the lake. This in turn will cause the dissolved oxygen level.

- Having more dissolved oxygen increases the number of fish observed in the body of water.

2. If the ppm of dissolved oxygen is increased in water then there will be more fish observed.

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

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).

One example is aquatic life. Animals use up dissolved oxygen to carry out respiration for cellular processes and bacteria use up oxygen to decompose and break down organic wastes removing oxygen from the water to breathe. Therefore dissolved oxygen levels are lower when a body of water contains a lot of decomposing material. Plants also affect dissolved oxygen content as they release oxygen as a bi product of photosynthesis.

While in many ways the two lakes share similar attributes, they can also be observed as their own entities. Each lake containing characteristics that make them preferred for some species types. In addition, the region shares some environmental concerns. Those concerns pertaining to invasive species as well as poor water quality. Both of which impact the physical characteristics, and natural life of the organisms that make up the many different habitats the region

The state of Michigan is a fascinating area. From its mitten-like shape, to its historical background, to the presence of the Great Lakes, Michigan has a story unlike any others. One very important part of Michigan’s story is how water has shaped the land making up the state. Seeing as the Great Lakes surround Michigan, it is obvious that the hydrologic system plays a great role in the water supply and the ecosystem of the Great Lakes. The hydrologic cycle includes evaporation, condensation, precipitation, groundwater, transpiration and runoff, all of which keep the Great Lakes functioning year after year. The University Corporation of Atmospheric Research developed an image to simply explain the hydrologic cycle as well as graphs explaining how each of the elements of the hydrologic cycle affects The Great Lakes on a monthly basis (located below).

The major element in this reading, "Greasy Lake", is how three nineteen-year old’s are just trying to be "bad". What they considered to be bad was drinking, doing drugs, and messing with people. That was only the beginning and what I see as being on the verge of bad. In some ways, they thought being "bad" was cool because they grew up in an area where being good was all around them. It all started when they started messing with, who they thought, was their friend Tony. Since it was not him, they describe the man as a "...very bad character in greasy jeans and engineer boots..." who "...was a man of action," (Boyle 134). When they got into the fight with the man, the narrator went to his car to get a tire iron and hit him across the face. Instantly, dropping to the floor, they assumed he was dead. Could that be considered self-defense or just genuinely bad? However, what they did next is what I believe to be genuinely worse. They went for the girl and tried to rape her. Trying to do something that horrible is unbelievable. Interrupted by another car, they all bolted in opposite directions. Another

When talking about nutrient content and nutrient type in bodies of water (especially lakes), three terms help identify these types of bodies of water- oligotropy, eutropy, and dystrophy. Eutropy refers to the probably the best possible condition for a body of water, because this type of body of water has many nutrients available to it (often in the form of silt) such as phosphorous. These bodies of water are usually near farms or forests and are thriving with life. Algae is a common type of organism that grows in eutropy’s, but can serve as a problem for the survival of other species. Oligotropy is basically the opposite of eutropy condition wise. Oligotropic bodies of water usually have a small amount of organic matter, few nutrients, and especially lack phosphorous. These water bodies are often near terrestrial ecosystems. Dystrophy refers to the condition in bodies of water that have an abundance of organic matter- so much so that the water is often brown. These bodies of water are often near bogs. Lakes can gain these types of nutrients through things such as runoff that bring soil nutrients into the water;

As well as being an area where nutrients are recycled and released into the water, the Polar Front region in the North Atlantic plays a fundamental role in the driving of ocean currents. At the front near the Greenland, Iceland and Norwegian (GIN) seas and the Labrador Sea, warm salty water from the North Atlantic is cooled by Arctic waters and by intense heat loss to the atmosphere; it becomes denser and sinks to deeper layers of the ocean. Salt rejected as sea ice forms also increases the density and contributes to the process. Although a slow process, this sinking takes place over a wide area and each winter several million cubic kilometers of water sink and begin moving slowly south along the bottom of the Atlantic Ocean. It is known as thermohaline circulation because it is driven in part by temperature and partly by salinity differences.

The example given is the coral trout, a fish that is commercially important. Since the water temperature has risen higher up in the water, these trout tend to be more lethargic now; they stay lower in the water. This is crucial because all of their hunting and mating ground is higher