Predation Simulation Formal Lab
The purpose of this lab was to demonstrate how predation effects an ecosystem and the organisms in it.
Salvelinus fontinalis, is the scientific name of the Brook Trout. The Brook Trout is a fish that have dark green sides with blue spots that have red spots within them. The underbelly of the brook trout can either be a silvery white or red. The fish also has light green lines running horizontally from the front to back end. This can be seen in Figure 1. The brook trout also has an average length of 38.1-50.8 cm. The trout also has fins, which include a dorsal fin, a adipose fin, and a slightly forked caudal fin. The Brook Trout has two different habitats. The small shorted lived Brook trout live in small cold streams and lakes located south of the Great Lakes region, and south of northern New England. The longer living and larger brook trout are found in large lakes, rivers, and estuaries in the native range of brook trout. This was the eastern two-fifths of Canada northward to the Arctic Circle, the New England States, and southward through Pennsylvania, along the crest of the Appalachian Mountains to…show more content… The river otter has dark brown fur everywhere besides the belly and face, which is a slightly lighter brown. The otter has short legs with webbed feet. The body of an otter is long and narrow roughly averaging out to be 3 or 4 feet long. The river otter gas a flattened head, a strong tail, and long whiskers, these things can be found in Figure 3. The River otter can thrive in any water based habitat, this includes ponds, rivers, marshes, lakes, estuaries. The otter can also live in cold, warm, and high elevation levels if there is a food supply that will last. The river otter will make a den along the water. These dens have underground entrances so that the den is not easily acceable to predators. The river otter has very few preadors which makes it a tertiary
