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Human effect on sea turtles
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But why do they matter? Green turtles graze on seagrasses and algae, which helps maintain the seagrass beds. By doing so, these turtles help the beds become more productive which is key to a healthy ecosystem. After the seagrass is consumed by the Green sea turtles, it is digested and its nutrients are recycled back to the seagrass and the organisms that live with it. Furthermore, seagrass beds are also used as nurseries for several species and these nurseries are important for species growth which will richen the ecosystem.
What threats are towards these turtles? While the Green sea turtle faces many threats including habitat loss and human activity such as commercial fishing, the highest impact towards the Green sea turtles is the overharvesting
and illegal trade. Around the world, primarily in Asia, the Green sea turtles eggs are of great value. These eggs are constantly being used for human consumption and because of this, fewer and fewer eggs are hatching. Additionally, parts of the turtle such as the shell are being hunted, leaving tens of thousands of green turtles harvested each year. As the years have passed, new laws have been created to stop the harvesting of Green turtles but our people will not listen. Undercover markets still auction off turtle shells and the numbers are dropping drastically. What are we doing? Because of the situation, the Green turtle is in many environmental organizations are stepping up to help them out. Although we can not stop the undercover markets we have figured out ways in which we can slow the decline of the numbers. One of which are satellite tracking. With new technology, we are able to track the turtles and obtain important data. Soon we will be able to understand and follow migration patterns and anticipate where the turtles may run into fishing gear. Another way we are helping out the turtles is preserving their homes. With the monitoring of seagrass beds and beaches, we are able to provide a safe place for these turtles to nest which will help maintain the eggs being hatched.
Fundy tides and the currents of the St John River which flow out of the main
In the nineteenth century, the Florida manatee population started to decline in numbers due to settlers hunting them for their meat (Pittman 15). In addition, during that time some of the scientists started to notice a decline in manatee sightings in areas they were known to migrate. Since permits were being granted to kill Florida manatees for science, and poachers were hunting them for their meat, government officials and researchers were concerned for the manatee's future (Pittman 17). Currently, there are many factors the Florida manatee is facing that poses a threat to their existence. Unfortunately, the greatest threat to the Florida manatee in the twenty-first century is boating and the loss of their natural habitat (McAullife 18). In fact, many boaters who have businesses have protested that their businesses are more important than the clumsy animals. Currently, another public concern for the Florida manatee is the increase of toxic blooms that cause red tide. In addition, since records have been kept researchers have discovered that red tide has been playing a role in the decline of the Florida manatee as well (Raloff 56). Red tide is a form of many toxins that are consumed by the manatee when they feed on seagrasses causing lung
The location of the study area is Silver Beach in Kurnell Peninsula, near Cronulla. It is located in the Sutherland Shire, south of Sydney Central Business District (CBD) and just directly south of Kingsford Smith International Airport. The area also has a historical significance as it is near the landing place of Captain James Cook on the 28th of April 1770 in Botany Bay.
Both, people and animals, use the Bays resources every day and have done so for centuries. One of the Bay's biggest resources is its oysters. Oysters are filter feeders which means they feed on algae and clean the water. The oysters feed on algae and other pollutants in the bay, turning them into food, then they condense the food down to nutrients and sometimes develop pearls. Filtering the water helps the oysters grow, and also helps clean the Chesapeake Bay.
They also look after the quality of coastal waters by watering down, sifting, and settling deposits, left-over nutrients and contaminants. They are highly productive ecosystems and provide habitats and act as nurseries for all manner of life.
salt marsh habitats. Once a marsh has built up to such a level that it
A theme in W.P. Kinsella’s “The Thrill of the Grass” is change, for better or for worse, affords the opportunity for us to acknowledge our emotions and love of memories and encourages us to stand up for what we truly believe in. Change, sentiment, reminiscence and defiance are portrayed through the protagonist and the plot in this admiringly, well written short story.
Since the green crabs were eating the gooseneck and acorn barnacles, the crabs competed with the food sources for the starfish and whelk populations. This caused the starfish to rely more heavily on the chilton and muscles as food sources and the whelk were outcompeted by the green crabs which led to their depletion. After a period of time, both the chiton and muscles had been depleted and the starfish were then outcompeted for the barnacles; this lead to the depletion of starfish. By having the chiton depleted, the nori seaweed, coral weed, and black pine were able to thrive since their only predator had been wiped from the community. Our findings prove that the introduction of the green crab to the intertidal communities of Washington will have a massive impact on the diversity of the communities and could lead to a complete depletion of many of the
Humans are one of the biggest threats to coral reefs around the world. Coral reefs house a diverse mixture of underwater species like sea turtles, hundreds of different fish species and over a thousand species of mollusks. They are home to an incredible amount of wildlife as well as protecting the coastline from ocean storms.
Manatees, also known a sea mermaids or cows, are on the brink of extinction with funding and environmental protection required to save these amazing animals. Humans are the biggest threat to their existence. Humans have carelessly injured and killed thousands of manatees by slicing and dicing them with boat propellers, all in the name of entertainment. Other negative factors include pollution, environmental reduction due to human encroachment, and poaching with manatees consumed as food. The existence of red tides is another factor posing a natural threat. While manatees may be viewed as large animals in the way of boaters with no real purpose, manatees serve a major purpose by eating vegetation and weeds that cause damage to underwater pipe systems in larger cities. Without them, the removal of this vegetation comes at a huge cost. The existence of one of the most gentle mammals in the world is being threatened. Action needs to be taken now to prevent brutal injuries or death by boat propellers, habitat loss, poaching, and other careless actions that threaten the manatee population.
With all of the knowledge concerning the negative effects that this marine debris has on the lives of sea turtles (as well as a litany of other unnamed creatures of the sea), comes the responsibility to implement a certain proactivity toward creating a safer and healthier environment in which the sea turtles can inhabit and continue to thrive in without obstruction for many generations to come. Firstly and likely most obviously, we need to be more attentive to halting the genesis of marine debris at its point of origin. As humans we simply have to stop being so careless in regards to littering and recycling. All that this requires is an awareness of the detrimental effects that not recycling and littering have on all sorts of life systems as well as a desire to make a difference.
These basking rocks, or even floating cork for younger turtles, are very important, they have to have a place to bask and get out of the water. Yet if you decide to keep it outside be sure to provide a place to bask, plenty of water, filters, and a covering so other predators can not harm or eat your turtle. Equipment will be different for indoors or outdoors. If you keep your turtle indoors be sure that it can occasionally get fresh air and sun light, but do not keep an aquarium next to a window! Also, make sure your aquarium or pond is clean, this is extremely important to maintain good health for the turtle and provides them with a clean habitat.
Red tides have made many people sick such as residents and tourists of Florida’s Gulf Coast. The tides also have affected many business owners because many tourists don’t want to come to beach resorts because of Red tides. Red tides are caused by two ways. One of the ways are the algae reproducing and giving an effect of toxic air. Many outbreaks have also occurred because of red tides. Such of these things include poising form fish and shellfish. To stop Red tides, many researchers have done numerous experiments to try to find a way a way to stop Red tides! There are three main solutions to stopping Red tides. If we try to do these solutions red tides will decrease in the amount of times they occur.
Seagrass is not just a food source for macro species such as manatees, turtles, dolphins which graze directly and dugongs which primarily only eat seagrasses as their diet. but seagrass also indirectly provides nutrients storage. Seagrass restrict excess nutrients from phytoplankton by sequestering it from the surrounding environment, which in turn helps prevent the formation of algal blooms.-------- longer
Seagrass is not just a food source for micro species, but also macro species such as manatees, turtles, dolphins and dugongs (Yamada and Kumagai 2012). These marine organisms are all supported directly and indirectly by seagrasses, with some entirely dependent on it. Seagrass is often underestimated in its significance as the vast role that it plays in the oceans ecosystem is not fully understood. ...