Beach Observation Essay

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The large mountains surrounding Anchorage collect a substantial amount of snow. During the Summer when the snow thaws, the water in the creeks start flowing once again. This is because of the Hydrologic Cycle, through condensation and evaporation, precipitation takes place, therefore causing runoff into creeks and streams. Due to this continuous pattern of melting and freezing, the stream that I am studying is perennial. My stream reach was located upstream from Eastchester between a bridge and a large, silver culvert. This stream was most likely a lower reach because of its substrate and distance from the ocean. The substrate consisted of mostly gravels, sand/silt, and few cobbles and gravels. The stream was roughly 15 feet wide and 2.5 …show more content…

Two cottonwood trees growing on the far left side of the stream gradually have ‘caught’ twigs and logs, which over time provided a structure place for animals. The shade and structure provides habitat for fish, and other aquatic animals for a place to rest and possibly hide from predators. Additionally, the shoreline near the right side of the stream is sturdy, while the left side is partially undercut a few inches. Since the stream is particularly shallow the lands surrounding it I would not consider as wetlands, however there is still a plentiful amount of riparian vegetation. Encompassing the stream are mainly facultative wetland plants, but their are also a minimal amount of obligate. This large amount of vegetation/habitat structure doesn't just protect the stream and the marine creatures within it, but helps the ecosystem by providing a place for many types of waterfowl to nest. Also, it provides a variety of bugs, which encourages even woodpeckers and magpies to make the stream ecosystem their home. Moreover, besides obligate and facultative wetland plants, their were a large amount of trees and shrubs further away from the stream that are intolerant of the saturated soils, known as upland

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