Observation Of The Orme Pond

In the hypothesis, it was stated that the water would remain yellow. After a day, the water was yellow, proving the hypothesis. The water remained yellow because, even though it was placed in the light, a snail cannot photosynthesize and produce oxygen, only breathe out carbon dioxide.

There are many types of native animals that live in the location of Lake Doonella. Although during the field walk there were not many visible animals, it was made clear that snakes and many animals live here, as during the walk snakes skin was discovered in the bush approximately three meters from Lake Donella’s shoreline. Insects such as spiders live here too, but don't usually walk around with humans around or other predators. Most koalas and types of birds are extremely native to the location. Sea animals were not seen during the field walk such as fish as they live in the water.

Brooks and Dodson, the authors of the article titled “Predation, Body Size, and Composition of Plankton”, conducted research on the effect the small fish called Alosa Pseudoharengus has on an ecosystem, more specifically, different lakes in New England. Along with the data they collected on the aforementioned matter, they studied the sizes and the composition of the miniscule zooplankton inhabiting the lakes, and compared it with that of the Alosa. Their research uncovered important facts regarding water ecosystems and how they are so easily thrown off balance.

      The general characteristics of the plants in these bodies of water have strong and steady roots, or roots that are bendable, depending on how fast the current of the water is. These traits help the plants mainly so they do not get swept away. Plants that

Underwater grasses, or Elodea, was observed as well. This wide variety of life is a good indicator of the water’s health.

The dissolved oxygen levels are much higher in this experiment than in the previous experiment.

Another potential error, which might have occurred, is the temperature fluctuation throughout the experiment. The rate of osmosis will be affected if the temperature in inconsistent, as more heat increases rate of osmosis and cooler temperature decreases rate of osmosis.

We placed 50 mL of vinegar, tap water, seawater into three respective beakers. 50 mL of seltzer water was placed into a jar with a lid

Producing long and hair-like filaments, Lyngbya normally grows in dense mats at the bottoms of nutrient-enriched lakes and spring-fed systems. These mats produce gasses during photosynthesis that often cause the mats to rise to the surface where they can grow to several acres in size. Winds push the mats causing them to pile up against shorelines and in channels making navigation difficult and decreasing sunlight for the native species. In some areas, the algae bloom covers so much of the pre-existing vegetation that it smothers eelgrass, a preferred food of the endangered West Indian manatee. Reduced water clarity and extreme fluctuations in oxygen stress every part of the ecosystem and as a result, tiny essential, life-sustaining micro-organisms that feed on native vegetation are severely reduced, and so are the fish, turtles, manatees and other wildlife that feed on them. The birds and larger animals that feed on smaller animals must find new, more plentiful

There are over 3,000 species of plants, and a huge diversity of aquatic life. Some

Daphnia Magna will be used to measure how quickly dead zones are forming by eutrophication. We will use three different endpoints to measure the Daphnia Magna: Heartbeat, Mobility, and Mortality. We will have three fertilizers mixed with pond water in three separate test tubes per fertilizer with Daphnia Magna and one without ferilizer as the control. There will be three different sets each set will contain four test tubes: Three test tubes each with different fertilizers and one without as the control. We will then measure the three endpoints of the Daphnia Magna after thirty minutes which will be repeated for each set thus the whole experiment will last 90 minutes. The equipment needed for the experiment is the following:

Hypothesis: Aquatic Chamber – If the CO2 levels become too high, the fish will die because the aquatic plant will not undergo photosynthesis quickly enough to produce enough oxygen for the fish to survive. Terrestrial Chamber – If the seeds grow into plants, then they will undergo photosynthesis and the oxygen will help keep the fish alive because the soil will be nutritious and the fish will survive better with the extra food and oxygen. Decomposition Chamber – Materials: - Three 2-Liter bottles + their caps - Soil (top soil) - A straw - 1 fist-sized rock - Seeds or plant cuttings - Fruit pieces - Any aquatic plant - 2 worms -

The water is a dark yellow. The plants are growing mold. 1 cricket is still alive when 2 crickets are dead and the fish is still alive.

The eggs were each individually placed in one of the beakers and were taken out and weighed every 15 minutes for 60 minutes. Weighing the eggs helped to test the process of osmosis by finding out the mass before and after soaking in water, this will dictate whether water has moved in or out of the egg.

I decided to test the ecological status of the wetland by gathering samples from the wetland and testing it for various aspects in the water and the plants that are found within the area.