Barracudas may be apex predators within coral reefs, but humans will always beat that. Southeast Asia is a main place where coral reef fishes are eaten, including barracudas. The barracuda prevents overpopulation of organisms by consuming them. The barracuda’s main competition is sharks.…
I’m researching the Hammerhead shark it has many unique features . It has a oddly shaped head used for hunting . They live near the equator or in tropical waters . They are carnivores and eat about anything and their favorite food is the sting ray . The hammerhead shark is very unique .…
Although evidence has shown that there is a recent change in the increase of the cownose ray that has caused a large boom, it's Well known that the cownose ray is a predator of shellfish when the water becomes warm. The marine systems caused by the removal of sharks remain misleading, due to the significant declines in large coastal sharks in the northwest Atlantic Ocean, which caused dramatic increases in abundances of smaller elasmobranchs (referred to as “Macropredators”) over the predation release. The large coastal sharks decline allegedly led to an order of large scale increase in the population of Cownose rays. Thereby the ever-increasing feeding of the cownose ray has led to the concerns for the shellfish populations along the U.S.…
Adaptations, the bull shark has gained the amazing ability to survive in both salt and freshwater, this allows the…
Did you know that the venom of a Black Banded Sea Krait is ten times more toxic than that of a rattlesnake? Maybe this is why people are scared of snakes. Though their venom is very toxic, humans rarely get bitten. Unfortunately, the population is being threatened by habitat destruction. The Black Banded Sea Krait has its own ways of adapting to marine life, where it lives, and how they produce more of their species.…
Since the 1970’s when the movie Jaws first showed up on big screens around the country, people have been afraid of beaches, in fear of shark attacks. Not only have they been apprehensive about swimming in the ocean, but some have such malicious feelings towards sharks (especially Atlantic White Sharks due to their role in the movie) that they have taken to hunting and killing this already dwindling species. (Earth Island Institute) It is no secret that pollution and overfishing, as well as numerous other factors have caused the biodiversity of marine life to drastically decrease. It is also known that the ocean ecosystem relies much on all members of the food chain- particularly top predators like sharks. Larger sharks,…
maenas is cannibalistic, especially in postlarval and juvenile stages (Moksnes et al., 1998). This cannibalism tends to be density dependent and self-regulates populations of C. 5 maenas (Moksnes, 2004). Mortality by means of predation by H. sanguineas serves to further thin populations. C. 5 maenas is also very efficient in selecting habitats with low risk of predation (Moksnes, 2002). H. sanguineus populations are at higher densities in rocky intertidal areas, the same refuge habitat preferred by juvenile C. maenas. In response, C. 5 maenas has shifted habitat usage to areas with reduced refuge (Jensen et al. 2002). 5 This habitat shift also creates a shift in diet in adults from primarily consuming mussels to primarily consuming red algae (Griffen et al., 2008). Reduced refuge creates risk of predation by seabirds, fish, and other predators. Dietary shifts of C. 5 maenas in the presence of H. sanguineus could reduce C. maenas populations in two ways. First, this shift in diet decreases nitrogen consumption which slows growth rates of C. 5 maenas, potentially extending the time susceptible to size dependent predation (Griffen, 2008). In the presence of H. sanguineus, C. maenas typically forages for red algae (Chondrus crispus) containing 0.4%-1.4% nitrogen with higher values in winter and lower in summer (Chopin and Floch, 1992). Otherwise, C. maenas would prey on mussels (Mytilus edulis) containing 7.7%-9.6% nitrogen with higher values in spring and lower in late…
A head that looks like a hammer, one eye and nostril are located on each side of the head, extra-tall dorsal fins. They grow to about 3 feet (0.9 meters) to 20 feet (6.1 meters). They weigh to about 230-450 kg (500-1000 lbs). They are usually grey, brown, or white. They have smooth skin.…
Its claws are long, curved and needlelike and used like weapons for defense and to attack their prey…
U.S. Air Force. (2011). Fact Sheet General Aotomics Predator. National Museum of the Air Force, 344 & pg1.…
The shark is known to be a terror of the ocean that does nothing more than kill human’s, at least this is what was think of these creatures until more research was discovered. The truth is that the shark is a beautiful creature that has more than 440 species that is being hunted to extinction. Not many people are killed by sharks, as it is more common to be killed by a vending machine, than a shark. These creatures do not need to be hunted, as they are already on the verge of extinction.…
Growing up, everyone wants to be in the pros, or an actor. No one wants to be around slimy and stinky fish until retirement age. But one person did. That person is Eugenie Clark. Eugenie did not call it quits at retirement age however. In fact, Eugenie would continue to dive and study sharks at the age of ninety-two (MOTE). In this paper, you will learn about Eugenie Clark’s life, her contributions to the scientific community, her educational background, the passion for which she did her job, scientists that worked with her to reach a common goal, awards that Eugenie has won, and the knowledge on sharks from before Eugenie’s time, during her time, and now sadly, after her time.…
All marine mammals have special physiological adaptations for diving. These adaptations enable a manatee to conserve oxygen while under water such as having slower heart rate while diving. Another Manatee’s main behavioral…
Great white sharks are known as the most dangerous of the shark species because of their sheer size and their quick mind that make them the ultimate predator. A comparison can be seen in Figure 1, where the great white shark is seen next to a human, this image is showing the sizing difference between the two species. The shark is so captivating that there is an entire week each year dedicated to these creatures to learn more about them and the world they live, in an area that is vastly undiscovered. There is enough evidence through fossils that can date the shark back four-hundred million years ago, which was a time before dinosaurs were roaming the Earth (“Shark Basics”).…
Bibliography: 80 Random Facts About Sharks. (n.d.). Retrieved April 11, 2013, from Random Facts Website: http://facts.randomhistory.com/2009/03/11_sharks.html…