Zach Torres Oceanography T/TH 11-15-10 Great White Shark For many years there has been one animal that has struck fear in everyone that goes into the ocean. That animal is the Great White Shark. It has been known to exceed 20 feet in length, although most are about 5 meters long and weigh somewhere between 4000 and 5000 pounds. They live in almost all coastal areas that have a water temperature that stay between about 50 and 75 degrees. Perhaps the most well known place to see great whites is Dyer Island, which is off the coast of South Africa.
The pots were about 3 feet 6 inches and contained two to three dozen good size crayfish weighing about two several pounds. The men said it was about one hundred and fifteen to three hundred feet long. Another eyewitness saw a great white shark the size of a tractor trailer had attacked a person. Many sharks have been clocked out as fast as 1.5 miles and the mega shark could probably swim in a longer distance since this is a bigger shark. Two percent of the ocean has been overlooked by people ant it leaves ninety-eight percent of the ocean for the megladon can swim.
Killer Whales are marine animals that live in oceans all over the world. Although they live in many oceans, they seem to prefer coastal waters and cooler regions. The Killer Whale, sometimes called an Orca, sometimes enters estuaries, but doesn’t go far from the sea. Killer whales are one of the top predators in the sea. They are good hunters that eat a large variety of fish, squid, sharks, marine mammals (such as whales and seals), turtles, octopi, and birds (penguins and gulls).
One such biological species which is going extinct is the angel shark. The Angel sharks are flat-bodied sharks, very ray-like, with broad pectoral fins that bury themselves in the sand or mud with only the eyes and part of the top of the body exposed. They have a blunt snout
It is the deadliest shark known to man and has been accounted for the most caused deaths. Hammerhead- this shark is easily recognized because of its hammer shape like head. The hammerhead shark has this type of head because they have all of their sensory organs in their head. Reef sharks- this sharks is referred to as the black tip shark because of its black fins. They normally live in the reef eating on small pray such as fish, lobsters, and small mammals.
In the late 1990s, a species was introduced into the waters of the Atlantic Ocean, becoming an invasive species: the lionfish. The lionfish, a venomous marine fish found mostly in the Indo-Pacific waters, is distinguished by its red, white, and black stripes, striking pectoral fins and its venomous spiky fin rays. The lionfish ranges in its size from 6.2 to 42.2 cm, with an average adult measuring the size of 38cm and weighing 480 grams, living 5-15 years. This venomous species is well known for its beautiful venomous spines and unique tentacles. Younger lionfish have a unique tentacle above their eye sockets, which differs in appearance between species, but studies show that this tentacle has evolved over time in each species serving to attract new prey.
Dr Carl Meyer from Hawaii Institute of Marine Biology stated that mass levels of shark culling “runs the risk of ecosystem-level cascade effects where a general lack of sharks results in boom or bust in populations of species further down the food chain”. Furthermore when nets are used to trap sharks, often animals such as dolphins, turtles, whales and dugongs become trapped in them. Turtles are one of the most endangered species as a whole and are just innocent bystanders in this war between humans and sharks. We need to be careful of not affecting other animals in this quest to reduce shark numbers in the name of nothing. Sharks can already be caught legally by commercial and recreational fishers so any cull would be largely
Chris Chapman Dr. Karen Keane-Hines Anatomy &Physiology II MANATEE Long ago manatees were mistaken for mermaids or sirens-luring sailors to their deaths on rocky shores. So the order of these marine mammals has been named, Sirenia. There are five species: Amazonian, West African, and West Indian with two sub-species the Florida and Antillian Manatee. All have front flippers and a solid, flat, paddle shaped tail. Another related species, the Dugong, has a fluked tail.
SO what the killer whale does it dives in the water and become submerged in the water for more than 15 minutes so they can use echolocation and listen where their prey is 3. Another selective pressure is the pressure that increases as they dive. Unlike human scuba divers, a whale doesn’t breathe air under pressure. It inhales only at the surface. Furthermore, in diving mammals, the alveoli collapse at about 3 atmospheres of pressure (about 90 feet), forcing air into the bronchioles (rigid air passages), a region where gases are not exchanged.
The orcas’ brains have an “extra” part that makes them considerable more emotional. As cited on Tim Zimmermann’s article, the marine biologist Ken Balcomb stresses that: One of the most important things to know about killer whales like Tilikum is that, in the wild they live in complex and highly social family pods of 20 to 50 animals. The pods are organized around the females. The matriarch is usually the oldest female (some live to 80 or more), who has a wealth of experience and knowledge about where food can be found. Within the pod, mothers are at the center of smaller family groups.