Hammerhead Sharks Marine Science/ Per. 1 Sharks are one of the most feared sea animals. They live in oceans across the world but are most common in tropical waters. There are over three hundred fifty species of sharks. They can be broadly categorized into the following four groups: Squalomorphii‚ Squatinomorphii‚ Batoidea‚ and Galeomorphii. The shark family Sphyrnidae that includes the Hammerheads are part of the Galeomorphic classification. They are probably the most easily recognizable
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Shark Finning It wouldn’t be news if I told you our planet has its environmental problems. We’re making some progress in controlling what we put into the air‚ put into our landfills and even put into our oceans. But we’re not paying enough attention to what we are taking out of our oceans – sharks – and they’re being killed at the rate of up to 73 million per year. That number refers to the number being killed only for their fins and almost entirely to make shark fin soup. You may not really care
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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
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Immobility in Sharks Sharks are a misunderstood but fascinating species of fish that are not well liked but are a necessary component to maintaining a complete ecosystem. Many things are known about sharks but so much more is not. Sharks are difficult to study since many species cannot survive in captivity; particularly the larger species‚ such as bull sharks and tiger sharks. These sharks have to be studied in their habitat. As one can imagine‚ attempting to study sharks in the ocean
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Sharks and Australian Fisheries The Fishing industry is the 5th largest food producing industry in Australia. Annually it puts $2.2 billion dollars into our economy each year (afma.gov‚ 2013). Australians consume approximately 16kg of fish and seafood per person per year. This amounts to a lot of fish needed to sustain such a demanding population. Therefore the most important issue for fisheries in Australia is to ensure the ecological sustainability of fish stocks in the long term so that ecosystems
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great white shark veraciously attacks him. This is what comes to mind when most people think of sharks‚ but they are not really just man-eating monsters of the sea. Sharks are a fascinating group of fishes that strike fear into the minds of humans‚ but they are nothing to be afraid of. There are over 475 different species of sharks‚ but only a few of these are considered to be dangerous to people. These include Great White Sharks‚ Tiger Sharks‚ and Bull Sharks. Most species of sharks do not even
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Sharks by : Maritza Martinez Most people are afraid of sharks and don’t want anything to do with them but there are people that actually know things about sharks and don’t fear them. Sharks much like people come in all different shapes and sizes and can and do live mainly everywhere. What people don’t know is that sharks are much like people they take care of their young by protecting them‚ feeding them‚ teaching them to hunt. They are thought of as
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The goblin shark (Mitsukurina owstoni) is a rare‚ poorly understood species of deep-sea shark. Another name for this species is elfin shark.[1] Sometimes called a "living fossil‚" it is the only extant representative of the family Mitsukurinidae‚ a lineage some 125 million years old. This species looks unlike any other shark‚ with a long flattened snout‚ highly protrusible jaws containing prominent nail-like teeth‚ and pink coloration. It is usually between three and four meters (10–13 ft) long when
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welcome to our speech on the dangers of Shark Cage Diving. This is our second time public speaking‚ so bare with us. My name is Emily and I find that this is an extremely interesting subject. I find this an interest subject since many people tend to underestimate the experience‚ people will see it as though‚ humans are the only ones getting hurt‚ but really‚ sharks are injured and killed due to this sport. The amounts of sharks which die has risen since Shark Cage Diving was introduced. Yes‚ this would
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3. A. Are sharks members of the group Chordata? B. Why? 4. Describe the distinguishing characteristics of Chondrichthyes. a. Skeleton: b. Scales: c. Ear: d. Organ used for fertilization: e. Fertilization type: f. Organ used for buoyancy: 5. What animals belong to the group Chondrichthyes? 6. What does gnathostome mean? Sharks 7. A. What does it mean to say that sharks have fusiform
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