The blowhole of a sperm whale “is found far forward on the left side of the head with a spout that comes out at a sharp angle from the head and toward the left” (Brownell 682).Sperm whales have a wrinkled appearance (Brownell 682).“They has 18 to 25 peglike teeth one each side”(Wursig 258). The “adult male sperm whales measure up to 36 to 65 feet” while the “adult female sperm whales measure up to 28 to 41 feet” (Brownell 682).“Almost all sperm whales live only in tropical and mild water” (Wursig 258).Their daily intake of food consists of large squids, “certain fishes, such as cod, skate, barracuda, and shark”(Wursig 258). Another type of toothed whales is the beaked whales.Beaked whales “have a beaklike snout and only two or four teeth in the lower jaw” (Wursig 258) and “the upper teeth are absent or vestigial” (Brownell 682a). “Beaked whales are of medium size,” (Brownell 682a) “some kinds grow only about 12 feet long, but others reach 42 feet” (Wursig 258).“There are 18 known species of beaked whales” (Wursig 258). “Beaked whales live in all the oceans”(Wursig 258), but some of the beaked whales “species live in the deep waters” (Wursig 258).
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.
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.
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.
The humpback whale and North Atlantic right whale are the top two that you may see in New Jersey waters though other whales may migrate there. These whales are large and move slowly. The whaling industry banned these endangered whales from being hunted when they saw the numbers decline. The whales are still at risk for death by getting tangled in fishing nets and colliding with ships or boats that are fishing, exploring for oil and whale watching. Indiana Bat The Indiana Bat has been on the endangered species list for New Jersey for over 40 years.
They have no natural enemies except man and power boats which are responsible for most manatee deaths- (in 1990, 218 manatees or 12 % of the total population were killed by boats), though the red tide (toxins released from the bloom of dinoflagellates) of 1982 and1996 killed over 15% of the population. It is suspected that environmental pollutions create disease vulnerability in marine mammals with manatees being no exception. An example is when 10,000 seals died in 1988 in Denmark and Sweden from viruses related to canine distemper. High concentrations of PCB’s were detected in necropsies of these seals, presumably from the water and fish they ate. Other threats include accidental
In a type three survivorship curve, a very large portion of the cohort is killed within the first few weeks of life (Natural Mortality Lab). C. Chyros and S. hispidus are economically important species as a food source. C. chrysos serves as a source of bait for other fishes. Both the blue runner and planehead file fish species eat plankton and associated matter (Rooker et al.
They were overhunted in the 18th and 19th centuries and their population dropped from 300,000 worldwide to only a few thousand in Alaska. (Cohn, 1998) The 1911 International Fur Seal Treaty saved the otters and other marine mammals from extinction. (Bodkin 2002) The sea otter population is very important to many parts of the ocean’s ecosystem because they help keep sea urchin populations at a safe level. Too many sea urchins mean decreased kelp beds. Beyond the overhunting, there are many other threats to the sea otter population.
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.
In this paper I will discuss a little on the history of the coqui, and where it originated. I will also discuss the impact of the coqui’s and the population in Hawaii, to where they have been introduced over the last 30 years. The Coqui are natives to the Island of Puerto Rico and the unique sound they make can be heard through out the entire Island. The Coqui is known as a little tree frog with “only one minute tail when it is born and it quickly disappears. The color of the coqui varies, it is