The loggerhead sea turtle, Caretta caretta, is a threatened species with a highly migratory behavior and shifting habitat requirements depending on maturity (NMFS and USFWS 1998). The loggerhead nesting grounds are typically in warm temperate regions (NMFS and USFWS 1998).
In the original listing from USFWS (1978), the loggerhead sea turtle was listed as threatened throughout all of its range. The document goes on to state that one of the main threats to the loggerhead sea turtle was that it was being harvested for the shell or as food; the eggs were considered a desired food item and protein source. Regulations were put in place to protect the loggerhead sea turtle such as prohibition of foreign commerce, importation, and exportation
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Figure 1. Loggerhead Observed Bycatch. This graph shows data collected on bycatch rates in SEAMAP analysis data set in the Stock Assessment of Loggerhead Sea Turtles. From NMFS 2001. Nesting habitat degradation is an anthropogenic threat to the loggerhead sea turtles. These threats include coastal development, erosion control barriers or beach armoring, artificial lighting, pollution, removal of native vegetation, and vehicle and pedestrian traffic (NMFS and USFWS 2007). Some solutions include protecting and managing turtles on nesting beaches, monitor coastal construction, implement lighting regulations, screen artificial lighting with vegetation, and impose regulations on beach armoring (NMFS and USFWS 1998). Predation is an important threat to consider in nesting areas for the loggerhead. Many places have depredation to protect the eggs and hatchlings against predators such as feral dogs, raccoons, and foxes (NMFS and USFWS 2007).
The future outlook for the loggerhead turtle has been studied using two analyses, one looked at counts of nesting females and the other analysis was a stage based population model done to look at the anthropogenic mortalities with respect to the vital rates of the species (Conant et al. 2009). Using these analyses, it was determined that for the North Atlantic Ocean DPS there was a greater likelihood of quasi-extinction for the Northern Gulf of Mexico
Now, as most may know sea turtles are both marine and land animals depending on what stage of life they are in. Which means that they need to be able to go on land during certain stages of their lives. One of the main reasons why a sea turtle will go on to land is to lay their eggs. Within the last few years this has become harder and harder for the already endangered species. It
Humans have heavily affected sea turtle mortality rates, but one may ask what the benefit of having a stable and healthy population of sea turtles is. Sea turtles hold many important roles in both terrestrial and marine ecosystems where they are found. Along coasts where sea turtles are found nesting, beaches have been seen to have an increase in organic matter, phosphorus, nitrogen, and lipids (Bouchard 2000). This matter left by the sea turtle is in the forms of unhatched eggs and eggshells, which are then brought into the food chain through decomposers, such as beetles, or sea turtle predators, such as crabs (Bouchard 2000).
The Loggerhead is an endangered species. Between 1997 and 2007, around 70% of their east coast yearly nesting population was lost as a result of shrimp trawling and development in nesting areas. The Loggerhead Turtles habitat in Gnaraloo is vital for their survival. The female loggerhead usually digs her nest at night. She digs her nest with her back flippers, about 18 inches beneath the surface. When she lays her eggs they fall to the bottom of the nest and pack together after she lays the eggs she tops off the nest with sand. The hatchlings will incubate for 60- 80 days. Loggerheads nest on ocean beaches, they lay their eggs, immediately after hatchlings emerge from the nest, they begin a period of frenzied activity. Hatchlings are primarily
The Red-bellied Cooter is being threatened by both man-made and natural causes. Do to economic growth, areas that used to be a good habitat for these turtles are now being turned into new, buildings like apartments, houses, and stores. In areas where the turtles can live, they are threatened before they have even hatched from their eggs by other predators like raccoons, skunks, or even snapping turtles. Almost all of the eggs in a nest are harmed before they have a chance to hatch. So while humans taking up land takes the Red-bellied Cooters’ homes, their predators take their lives.
The magnificent leatherback sea turtle is a precious species that exists in the world today. It has endured and evolved through the years, and it would be terrible if humans put an end to their amazing existence. By learning more and taking an active role in supporting conservation programs, hopefully the leatherback population can grow and
The green sea turtle occurs throughout tropical and subtropical oceans and is among the largest of the hard-shelled sea turtles growing to as much as 440 pounds and four feet in length. The breeding populations in Florida were listed as endangered in 1978 (43 FR 32800 32811, July 28, 1978) whereas all other populations were listed as threatened (NOAA 2015h). There is a proposal for identification of a North Atlantic green sea turtle distinct population that would be listed as threatened, continuing its current listing status near New York (80 FR 51763 51764, August 26, 2015). They are found in the shallow waters (except during migration) of shoals, bays, lagoons reefs, and inlets, often where submerged aquatic vegetation exists, from Maine south to Florida, and throughout the Gulf of Mexico and the Caribbean Sea (USFWS 2015n, 2015o; NOAA 2015e). Green sea turtles nests are not present in New York; however, they occasionally are found stranded on or near the shore (NYSDEC 2015ad). Breeding takes places in subtropical to tropical oceans every two, three, or four years between June and September, with peak nesting in June and July (NOAA 2015h; USFWS 2015u). Hatching usually occurs at night, and many green sea turtle hatchlings seek refuge and food in masses of floating sea plants (USFWS
The leatherback is an endangered species. It's also the largest sea turtle. Adults usually weigh about 800 to 1,000 pounds (363 to 454 kilograms). Some have been reported to weigh as much as 2,000 pounds (907 kilograms). The turtles get their name because their backs are covered with leathery, oily tissue instead of a shell.
Commercial fishing is a reason so many turtles are dying each year and making them become endangered. Duke University found that shrimp trawls and commercial fishing nets have killed over 250,000 loggerheads in the human's lifetime. Lots of the turtles are dying to the actions we make. When you are fishing you
This rare turtle found in the United States is the smallest species of turtle in the United States. It can only grow up to 4.5 inches long! This tiny turtle is in two very small distinct populations that are approximately 250 miles away from each other. These turtles are very recognizable by the orange patches on their head. The National Fish and Wildlife foundation says, “In the last 30 years, these turtles have disappeared from more than 50 percent of the wetlands it once inhabited.” I believe we should be resurrecting more of the land that they used to live on.
Loggerhead eggs and hatchlings are a large food source for a variety of terrestrial animals, nearshore predatory fish, and seabirds, providing substantial amounts of energy and nutrients for these species (Wilson et al. 2010). A five or ten year period of loggerhead turtle declines may cause sublethal effects such as decreased growth rates or reproductive output for these predator species and a fifty year period of loggerhead turtle decline may potentially have more severe impacts such as significant declines for local populations that rely on eggs and hatchlings as a food source.
Unfortunately, the total population of the Cagle’s Map Turtle decreased by ⅔ since 1974 in 1997 and is only continuing to decrease due to major disturbances in habitat, including water diversions, degradation, and being subjected to living only along the Guadalupe River Basin(Ernst, C.H., et al., 1997). Since the Cagle’s Map Turtle only survive in freshwater environments, their population decreases in increased levels of salinity caused by the water
National Oceanic and Atmospheric Administration scientists Tomo Eguchi and Jeff Seminoff made oceanic history by releasing the first juvenile loggerhead sea turtle into the West Coast of the United States, with a transmitter attacked to its body. This exploration is going to aid scientists in getting a better understanding of what type of habitats juvenile loggerheads live in prior to participating in the years prior to participation in migration. Scientists are hopping to gain a better understanding of where juvenile loggerheads live for the sake protecting their habitats from fisherman. As of now, scientists have predicted that juvenile loggerheads tend to inhabit the same environments as swordfish. This is extremely dangerous to the lives of sea turtles considering that swordfish are heavily hunted by many fishermen. Therefore, if scientist theories are correct, the loggerheads are living in very dangerous environments. This exploration was initiated when a Coast Guard vessel found the loggerhead and took it to the Aquarium of the Pacific, where it would receive medical attention.
Furthermore, one of my favorite days during the program was going to the Maui Ocean Center. It is known to be the nation’s largest tropical reef aquarium. This allows people from all over the world to be able to view Hawaii’s beautiful undersea world all at once. Many of the animals that are held captive at the Maui Ocean center are mainly found in Hawaii. The Hawaiian Green Sea Turtles exhibit truly caught my attention at the Ocean center. They have a education outreach program called Hawaiian Green Sea Turtle Educational Loan Program that helps strengthen the population of this particular specie. There was a study done to see how well the captive bred green turtles were adapting to wildlife. The information obtained during 267-481 days of remote monitoring using satellite tracking gave strong support to the premise of successful adaptation to the wild by the four captive- reared juvenile green turtles released by the Maui Ocean Center (Balazs, Parker, Gorman, Luecke, Pawloski, 2015) . Current research in Hawaii shows the Hawaiian green turtle population is increasing since they have been protected by federal law (Maui Ocean Center,
Like all turtle species, human predation and collecting is a serious danger to their survival: Loggerhead eggs and the turtles themselves, are sold on the black market for food and their shells are used to make items such as boat paddles and helmets in some places (Hawkes, 2016). The black market is an illegal shop were people sell things that are prohibited to sell (Hawkes, 2016). They usually held in secret places where no one knows (Hawkes, 2016). Around 65% of Loggerhead Turtles are killed each year because of the black market (Nobs, 2004). People kill these poor, harmless animals just for profit and it need to stop (Marine Bio, 2015). But there e actually is no way to stop black markets, you can reduce them but you can’t stop it. This is because black markets are an idea and once an idea is out, you can’t reverse it and take it back. (Holden, 2014). If you were to stop this, the government of every state would need to basically go round their whole city/state and check every corner where there may be a black market, because if nothing gets done we will loose our precious creatures (Queach,
Sea turtles are becoming more and more endangered as time goes on and is something that really needs to be changed. There are seven species of sea turtle and they are all either endangered or critically endangered. Millions of sea turtles used to inhabit the sea now only a fraction of them are still around. Humans are partly the cause of this because we hunt them for food and profit. It is unbelievable that people can kill such beautiful creatures just for their personal benefit. Humans are not the only reason sea turtles are facing extinction, but we are the main reason. Humans really should not be part of the problem in the first place.