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Natural events such as earthquakes, hurricanes, winds, and tides all have an effect on beaches. Many of these causes have varying effects on the shoreline and beach. Following the beach assessment, it was discovered that the tides had an effect on the beach's slope and the small dunes. And was deposited on the beach in the form of waves because of the movement of the waves on the shore and the movement of the wind with also takes part in the process. On the other hand, storms and hurricanes have a much stronger effect regarding the depositing of sand on the shore. With storms and hurricanes the sand is deposited inland and the patterns formed by waves are destabilized and the slope of the beach also changed. Plants along the beach also help in the shape of the beach since their root systems hold to sand maintaining its position. Another revelation made concerning the shore and the beach is that stronger wave action leads o steeper slope while weak wave action lead to a rather flatly shaped beach surface.
Impact of the burrowing organisms
Burrowing organisms play a variety of role on the ecosystems in which they are found. In aquatic ecosystems such as the beach, burrowing activity is determined by the different tides, shoreline and the width of damp sand among other factors. The presence of burrowing organisms is an indication of biodiversity in a given area. Some of the common organisms found at the beach include blood worms and sand crabs. These organisms are constantly changing their position on the beach and do not have a permanent habitat. One of the roles played by burrowing organisms is in the determination of high tide and low tide lines since they move according to the water level and this is an important feature for researchers.
Effects of sea oats and other plants found above the high tide line
Sea oats and plants help in regulation of the rate of erosion at the beach. The plants root system helps in keeping the sand together thus preventing excessive erosion. The action of sea oats and plants found above the high tide line helps in dune formation which is part of the features found on the beach. Sea oats have a high tolerance to sea water and high salt spray making it an excellent species for growth on the beach with accumulating portions of sand and regulation of erosion.
Impacts humans have on beaches
The effects on the beaches by human beings are many and diverse. Unfortunately most of them are negative and thus severely impact the plant and animal life on the beach. Human beings actions have ked to pollution along the shore an on the surface of the beach, increased the erosion rates, impacted marine life which is affected by the pollution that is carried into the ocean at run off. Also, the habitats of both animals and birds at the beach are invaded by human activity which makes them migrate. This migration occurs due to congestion as more people build houses near the beach and set up businesses. Excessive fishing has also lead to depletion of fish life in the ocean.
Impacts shade from bridges, tall hotels, or beach walkovers have on shoreline ecosystems
The shadows cast on the shore by high buildings and bridges disrupts the planta and animal life. Since the animals rely on light for a lot of their activities the shadows cast inhibits this action which is essential for the growth, development and beach related activity. On the other hand, plants require light for growth and development. However, if the plants are invariably in the shadow of the tall building they die. These death in plants and migration of animals robs the beach of biodiversity and the benefits of having the plants and animals on the beach.
Effects of trash that gets carried off the beach with the tides and chemicals and nutrients that are washed into the sea with storm runoff
Trash and chemicals deposited on the beach and later transferred to the water during run off has several effects on aquatic life. Chemicals may lead to the death of animal life as a results of interaction with internal organs and overwhelming the system. Trach also chokes the plant and animal life and is unsightly when left on the surface of the beach. The pH of the water is affected by the addition of chemicals. Since certain organisms only thrive in a particular level of salinity and pH, then the disruption of this equilibrium disrupts the fauna and flora as well.
“Renourished” beaches, those where sand has been added from offshore, differ from natural beaches
Unlike natural beaches, the renourished beaches have different wave patterns on the shore since the action of the water on the sand is different. The surface is man-made meaning that there is more level than in natural beaches whereby the slope is dependent on the action o the waves, wind and the tide.
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