Most starfish are carnivorous they prey on animals such as oysters, mussels, sea snails, and also clams. They find their prey with light sensing eyespots. These eyespots are located at the end of each of their arm. One is also located in the center of their bodies. It can only sense light and dark. They pry open the oysters with suction-cupped feet by wrapping their around the oyster shell and then pushes it stomach through its mouth and into the open shell. A starfish have two stomachs. They are call the cardiac stomach which is a sac-like organ located at the center of their bodies and then it the pyloric stomach where the digestion is completed. This adaptation allows starfish to eat animals larger than their…
I chose to look up a diagram on a sea dwelling organism known as a Jellyfish. Jellyfish have many different forms and are often characterized in different groups. One jellyfish that stood out to me was the Aurelia or also known as the Moon Jellyfish, which is like the basic jellyfish that I’ve always seen in pictures and books growing up. Jellyfish are said to be very effective predators, as one point in the time they were considered to be at the top of food chain. Being effective predators makes them physically fit to be in any environment that they travel to. Even though most would say that jellyfish are horrible swimmers, they are actually in fact many are very strong precise swimmers. Jellyfish can swim horizontally and vertically by using contraction against their bell to expel jets of water to propel them. One drawback of them not being stronger swimmers like larger fish is that they often get caught in sea currents and get stuck in them as they go pass. The bell that propels them has a thick ring of strong muscle, called the coronal muscle. That muscle generates most of the power and energy used by a jellyfish. Now hanging from their subumbrellar is a projection called the manubrim which has the mouth its terminus. The mouth is often surrounded by oral arms normally just for but can sometimes be a multiple of four such as eight, depending on the type of species. Jellyfish don’t have a brain but they do bear a sophisticated computer which tends to all its needs and functions throughout the jellyfishes body. Though not as complex as a normal brain, it does suit the jellyfish well. Now on the edge of the underside of the jellyfish’s bell are its tentacles. The tentacles too can range in different numbers and sometimes some have thousands. These tentacles can be used to feed it, but also are use as it self defense mechanism to protect and also to hunt. The body and tentacles of a jellyfish can discharge…
Blackfish is a documentary that tells the story and event Tilikum. After the release of the movie there has been big argument between the maker of Blackfish and Sea World about what really happen during the events the event where Tilikum took the life of some trainers. Blackfish argues that sea World captivity of the orcas can lead them to have physical, metal health problems and that the trainer are not safe in wild working with the killer whales.…
The primary swimming form of the Orangespotted Sunfish is labriform because they row their pectoral fins, an oscillatory fin motion. The mouth of these fish are terminal and moderately large. A terminal mouth allows this species to be a benthic and surface feeder. Their gill rakers are long and slender with space between them. This allows for particles in the water that flow into the mouth of the fish that they do not want to eat, to flush out. It indicates that the food of this fish is medium to large sized compared to their body. This correlates with an omnivorous diet and the ability to consume small and large prey. Daphnia and Cyclops are crustaceans often found in this species’ diet. Also, they help with mosquito control by feeding on mosquito larvae. The eyes of the Orangespotted Sunfish are corrected for spherical aberration, meaning they are a visual fish and need sight to find their prey. Since their prey is small fish and crustaceans, good eyesight is important to find them in the murky water that they live in. The Orangespotted Sunfish has adapted traits to better thrive in it’s…
However, to learn why this dark killer is endangered, we will need to know more about mysterious fish itself. The monkfish is a type if anglerfish that lies on the sea floor. It usually has a flat body and dark skin so it can be perfectly hidden under the murky depths of water. Like its relative, the anglerfish, the monkfish has flesh sticking out of its head with a fluorescent bulb that glows which is used to lure lost fish near the monkfish to be devoured instantly by the ninja's large dagger like teeth.…
In the book Cod: A Biography of the Fish That Changed the World by Mark Kurlansky, the author tries to prove that the discovery of the cod fish changed the world. Gadus morhua, or cod, had turned from a commercial fish eaten by all, to a reason for war and travel. The book starts by following a group of Canadian fishermen who were struggling to sustain their livelihood on overfished seas. What they didn’t know was that they were “at the wrong end of a 1,000-year fishing spree.” As early as the 1600’s, the main source of food was cod. Cod had become a main source of food for long time as it was one of the only fish that could go without rotting. Along with its long lasting appeal, it was also one of the easiest fish to catch, being considered one of the laziest in the water. During a time where knowledge of other sources of food maintenance wasn’t as expanded as it is today, cod fish was essential for anyone near a body of water. Profit was the first outcome from this fish. Many people had begun to learn that salt was something that kept the fish lasting longer, one of the first being the Basques. Basques were located around the western end of the Pyrenees on the coast of the Bay of Biscay and straddles parts of north-central Spain and south-western France. Since as early as the 1000’s, the Basque people knew how to use both their boats and salt. They knew exactly where to catch the most cod fish and how to preserve. They started to put together, from what they thought, an unlimited supply of the fish because of their new way of storing it and traded it with other groups. Even the trade of salt was successful, due to the fact that other groups valued cod just as much. Basques had transformed flaky cod fillets into a protein-rich nutritious meal. Cod preserved became food for the masses; the salty stuff continued by the Vikings and large populations throughout Europe during the…
The zebrafish (Danio rerrio) is belonging in Cyprinidae family. It is the largest freshwater fish family and vertebrate animals. This family is common called minnows or craps family. The minnow’s family has about 3032 species and 371 genera. Some of the key characteristics to define this family are toothless jaws, teeth in throat only, cycloid scales, single soft-rayed dorsal fin and a pair of abdominal pelvic fins. They also have large eye, scaleless head and body with conspicuous scales. The mouth is usually small and pointing forwards or downwards. Minnow’s family is diverse family includes goldfish, shiners, and carps. It ranges from small to huge fish (up to 3 meter length). Their feeding is wide variety that some are filter feeders, others predators.…
Some people believe that Sea World is a greedy, profit-seeking organization that couldn’t care less about the treatment and well-being of their animals, but the truth is, the animals are in the best possible care. If the orcas or any other animal at Sea World were anywhere else, they would not get the attention and care they need to survive. Sea World’s reputation was tarnished severely by the documentary, Blackfish, in 2013. “This documentary claims that life at Sea World is cruel and harsh for both the trainers and the whales and that they have attempted to cover up the truth about many incidents involving their whales; both are false (Truth About Blackfish, Sea World Cares.com). Kyle Kittleson, a former marine mammal trainer for Sea World, states, “the documentary, Blackfish, is about 15% correct; one of those facts being in Sea Worlds earlier times, like the 60’s and 70’s, people had a different…
Lionfish and Jellyfish oh my! In the magazine article Box Jellyfish and newspaper article Venomous Fish for Dinner they state a lot of information about these aquatic dangers. For example, the female lionfish can lay up to 2,000,000 eggs a year, and I thought 100 was a lot. Also, the article in the magazine states that the jellyfish have venom just like a lionfish. Another way these two species are alike are they use their venom for defense.one way they are different is a jellyfish is a toothless invertebrate and a lionfish has spines for injecting venom into its prey not stingers. In the articles Box Jellyfish and Venomous Fish for Dinner talk about two very different types of fish that are also similar.…
Did you know that almost eighty percent of the fish living on a reef could be killed by a single fish that is only about the size of a human hand? This fish happens to be called the lionfish and is mostly known for its beautiful features and deadly poison. Lionfish are indigenous to the Pacific Ocean; however, they have recently invaded the Atlantic Ocean and are growing in population at an uncontrollable rate. Marine biologists and even everyday snorkelers fear the dangers of these fish and have even started taking the matters of getting rid of them into their own hands. On the other hand doctors, chefs, and even snorkelers consider lionfish to be very useful and entertaining. According to marine biologists, the…
David Mean’s short story “The Secret Goldfish” compares the unpredictable and constantly changing nature of human life to the ups and downs of the fish’s life inside the aquarium. Mean utilizes the symbols of the aquarium and the fish to show us reality, unpredictable and transient, and the outright will to live which guides drives us onward.…
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”).…
The Box Jellyfish are an extremely lethal creature, and they also known as Boxfish, Sea Wasp. Fire medusa, or just Stinger. They are claimed to be the most venomous marine animal known to human and it has sting, which is often deadly. They are invertebrate and present in a rounded box shape, and they belong to the class Cubozoa; they are not true jellyfish, although they show many similar characteristics with jellyfish.…
The brittle star, or the scientific class name, Ophiuroidea, is a close relative to what most people know as the common sea star, which are both in the echinoderm family. Today, there are over 2,000 diverse species of brittle stars that exist. While the brittle star may resemble a sea star at first glance, the brittle star has many distinctive characteristics, such as its physical appearance, habitat, role in the ecosystem, reproduction and movement. The brittle star is typically mixed up with sea star whenever they are found by a human. The brittle star is a one of kind class that has many interesting features and deserves more attention.…
“Marry your crush” – The most quoted speech of all, I guess, during the AYLC 2013. It’s like choosing to pursue and being engaged to a course of action that you really love to do and which you can live with everyday. With this motivation, one can achieve real efficiency and extreme tirelessness. This was the most of all the loads of positive vibes, realizations, thoughts and feelings that the 15th Ayala Young Leaders Congress 2013 has directed me. Being part of the finest youth leaders in the Philippines couldn't get any more awesome especially when you all get to gather in the spirit of humility while you recognize one another's strengths and weaknesses. I am glad I have these people whom I can count on in forwarding my endeavors and the whole society's interest. With just 4 days in time, I’ve had 80 soulful people who haven't only become my acquaintances, but also another family from all parts of the country.…