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Estuary ecosystem
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The ecosystem that bull sharks thrive in is the marine and estuary ecosystem. Bull sharks prefer shallow coastal waters so that means that these sharks come very close to humans way more often than we would like. It is also pretty cool that these sharks surprisingly can live in freshwater for long periods of time these sharks have been found in the mississippi river and the amazon.Sharks play a huge role in their ecosystem first of all they are at the top of the food chain in every ocean. And another important thing they do is that they keep the fish from overpopulating. The scientific name for a bull shark is Carcharhinus leucas. Some organismes theses sharks live with are Mackerels,herrings and other small crustaceans the relationship the
The film Sharkwater is a documentary directed and produced by Rob Stewart. Rob is an underwater photographer and a biologist that has a fascination with sharks, and their behavioral aspects. His way of studying these creatures he is able to learn about life and how to survive on this earth. This film showed the characteristics of reflexive documentary, this is because of the attention drawn into the sharks, their behaviors, and how we are affecting them. A statement that really stuck the documentary is people are taught their whole entire lives that sharks are dangerous but when you finally see it underwater your whole life can change in a flash. Rob made a very valid point as well, which is believed to be his thesis statement.
As they are at the top of the food chain, sharks play a very important role in the oceans in a way that an average fish does not. Sharks keep populations of other fish healthy and in proper proportion for their ecosystem. By preying on the old, sick or slower fish in a population, they prevent the spread of disease and prevent outbreaks that could be devastating. According to Ransom Myers from Shark savers, “sharks may be gone within the next decades if we continue to kill them, resulting in the loss of important foods that we depend on for survival, causing a marine ecosystem imbalance.” At the same time, I accept that shark nets could be useful, especially in shark infested areas that have been renowned as spots where many attacks have occurred, but I still believe, as you would, that scientists should spend more resources on working out why it is becoming more common for sharks to be entering shallower waters, looking for food – namely seals, who just happen to look like
The bull shark may be known to thrive in the Mississippi River and around Nicaragua but are wide spread throughout the world. The bull sharks have an ability to penetrate far up bays and rivers. Some bull sharks have even been found as far as a couple hundred kilometers from the sea. Bull sharks have also been found in Potomac river. Potomac river is located in southern Maryland and is about 405 miles away from the ocean. There has never been a reported shark attack in Maryland which seems crazy now knowing that bull sharks have been found only 200 yards away from the point lookout state park in Maryland. What is crazy is that bull sharks have the abilities to travel in many different environments and depths but tends to stay in shallow waters between 3-30 meters of water.
The Swell Shark, whose scientific name is Cephaloscyllium Ventriosum, is swell. The Swell Shark has many unique features, including its habitat, anatomy, feeding, and defense tactics. The Swell Shark is also a member of many diverse taxonomic groups, including Chordata and Chondrichthyes. These groups have many defining characteristics, which the Swell Shark displays all of. Lastly, despite the Swell Shark being of Least Concern in terms of conservation, it is still important to protect this species.
who they compete with for food and space. Main preys of this species are small fish and
Sharks live in almost every part of the oceans, from coastal environments to deep-sea habitats. They also live in the warm waters of the tropics to the cold frigid waters of
A bottlenose dolphin is an endothermic mammal that gives birth to live young. Bottlenose dolphins are the most common and well known type of dolphin. The name bottlenose describes this species of dolphin as they have a short, stubby beak (bottle-like shape). A bottlenose dolphin is a cetacean, which means it is a marine mammal. They are also one of the most-commonly studied cetacean because they live near coasts and adjust well to captivity. It’s Genus and Species names are; Tursiops Truncatus.
Shark nets have been implemented in locations across the world in response to shark sightings and attacks. Nets are submerged beneath the surface of the water, roughly 200 metres from the shoreline. The meshing is designed to be large to capture sharks, leaving them to struggle before eventually drowning under the weight of their own body. The meshing allows small fish to pass through, however captures larger fish and marine species. Shark nets provide no discrimination between common, vulnerable and endangered species, resulting in a high mortality rate for a variety of marine wildlife.
Not only are they a critical part of the bays ecosystem, but they serve as a primary food source for humans living near the bay. Some examples of fish from the Chesapeake Bay Program website include: Striped bass, Atlantic Croaker, Atlantic Sturgeon, and even Sandbar Sharks. Fish are at the top of the food chain in the chesapeake bay and they take a large responsibility in keep the ecosystem in check. Some fish feed on almost any living organism they can find while others search the bottom for smaller nutrients. Fish even serve as a food source for scavengers such as birds living along the
As I mentioned earlier, Sharks maintain the balance of the entire marine ecosystem! If the ocean’s ecosystem were to collapse, it would greatly affect life even on the surface. Sharks tend to eat fish who are much slower and sickly therefore they keep the population of fish in a healthier state. We depend on the oceans for the oxygen that we breathe because of certain species in the ocean that produce oxygen such as Phytoplankton, if Sharks were to be extinct, we would lose a great amount of the oxygen on Earth because the balance of living Phytoplankton and other species would not be enough. Furthermore, Sharks have been maintaining the balance of our ecosystem for 400 million years, if these sharks were to be gone, who would balance this heavy task? A number of scientific studies demonstrate that depletion of Sharks results in the loss of important fish and shellfish species from the food chain, including key fisheries such as tuna, which help the health o...
In 2015 only 59 shark attacks have occurred around the world compared to the millions of sharks killed by humans every year. Due to these accidental shark attacks people tend to think that sharks, especially Great Whites are evil creatures with malice intentions when attacks do occur; but, on the contrary that is wrong. Sharks are not the only beautiful and unique creatures in the ocean, they also play a vital role in our ecosystem; however, due to human interference they might not be around much longer, through awareness sharks can be protected from endangerment.
Thesis: Sharks should be conserved because they are an important part of the ocean, attacks are often incidental, and human behavior influences the behavior of sharks.
Most people think that sharks are large, fast-swimmers, and savage predators. This is true of some species and groups should be interested of the appealing aspects of biology found within it: all sharks have an excellent sense of smell; some can detect electrical discharges; some sharks give birth to one of the
What is the largest fish in the world? The answer would be the Rhincodon typus, or commonly known as, the whale shark. The whale shark is vey unique because unlike normal sharks, the whale shark is a filter feeder and so, does not have use of its teeth. The whale shark is also about the size of a bus. However, like many animals in the world today, they are considered vulnerable according to the IUCN. They are seen often in the tropical areas, but many behavior and movement mechanism of the whale shark are still unknown.
One particularly interesting sea creature is the whale shark, formally known as Rhincondon typus it was first discovered in 1828 by Andrew Smith (Rowat 2012). This large fish is found globally in warm tropical oceans and prefers to stay within 200 meters of the ocean’s surface in waters ranging from 4.2 to 28.7 degrees Celsius (Stevens 2006). This creature can be found all across the globe in any warm tropical seas. Aggregations of whale sharks have been seen off the coast of Australia at times, although it is primarily a creature of solitude. Whale sharks are filter feeders that consume plankton as well as small fish and are harmless to humans. The whale shark is a species with a fascinating ecology, life history, behavior, anatomy