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Beluga whale research paper
How human activity affects coastal environment
Beluga whale research paper
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There are about 16,118 endangered species worldwide that are listed in the IUCN Red List ("About Species"). These animals are most likely listed in this red list because of human cause. The things that humans do that seem so harmless could actually be harmful to many animals that live in the sea and everywhere else. Out of the 16,118 endangered species that are listed, there are a couple thousand beluga whales that are also in danger of becoming extinct soon if we don't do anything about it. The beluga whale is considered to be a near threatened species due to pollution, over hunting, habitat loss, and climate change: however the government and private organizations are striving to save their population.
Beluga whales or Delphinapterus Leucas, as they are scientifically called are very social, small white whales with a bulbous melon on their head, which distinguishes them from other whales. Their scientific name Delphinapterus, means dolphin-without-a-wing, and most likely refers to the lack of dorsal fin that these whales do not have and that most whales do. Due to the fact that belugas have a soft and flexible blubber around their heads, they have the ability to turn their heads almost 90 degrees to either side and can change their facial expressions relatively easy unlike other whales. These belugas are often called canary's of the sea because they make a series of noises such as chirps, clicks, whistles and squeals, that help them communicate amongst each other and help them find their meal through echolocation. The average adult male beluga weighs between 700 and 1600 kilograms, and can measure up to 2.6 to 6.7 meters.
These small white whales can be found globally, mainly in arctic waters, and some are foun...
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...cating mainly children because some day they are going to be the future of this planet and should learn how to take care of our planet and learn that their actions can make a change ("Save the Whales").
Though there are many causes that are putting the beluga whale in danger everyday such as pollution, over hunting, and habitat loss and climate change, There are still many government agencies and private organizations that are working to save the beluga whale population. These governmental organizations and acts include the Marine Mammal Protection Act and the International Whaling Commission. Private Organizations include the Defenders of Wildlife and the Save the Whale organization and so much more. These organizations are very effective because they help save the Beluga Whale population and without them many animal species would probably already be extinct.
Monodon Monoceros, Latin for “one tooth, one horn”#; or Narhval, Norwegian for “corpse whale” , because of it mottled coloration suggests a bloated corpse#.Narwhals are in the white whale family, along with the beluga, but are actually covered with spots of black, white, gray-green, and cream. Newborns are dappled gray-brown, white spots come with age#. At birth the calves are about 5 feet long and 180 pounds. Male Narwhals can reach 16 feet long, not including the horn which is 8 to 9 feet long, and weigh around 3000 pounds. Females are around 13 ft. long, do not have tusks, and weight around 2000 pounds. Adult males and females are usually dark in the area of the head, especially top of the head and upper and lower jaws#. Unlike most other whales, Narwhals have no dorsal fin, instead they have a low bumpy ridge that begins at about the midpoint of the back and continues to the fluke#.
When an intelligent animal accustomed to swimming in thousands of miles of open ocean is placed in an environment only twice its size, is separated from its species, and is forced to perform tricks, there are bound to be consequences. The captivity of these animals should be banned and National Reserves and whale tours should be used to educate the public while admiring these animals' true beauty. There are few experiences more meaningful than witnessing a killer whale enjoying the freedom of the open ocean.
Image sitting on the beach one July morning. The sun is beaming down and decide to go for a swim. As you approach the water, you see a whale unusually close. You begin to get nervous as it continues to approach the shore. However, you aren’t worried because you know that they are confined to the sea. As the whale comes near you can see it clearly. Just as you think that it will turn around, the whale walks out of the ocean!
Their dorsal fin is extremely long, tampered and pointed in a triangular shape or rounded and curved towards the end. The skull is oval shaped and the beak is extremely short and rounded at the end. The killer whale’s jaw is powerful with teeth that are able to tear apart flesh of their prey. They can withstand the jolting, wiggling and hurtling movements of prey that are trying to escape. The killer whale is born with a single blow hole instead of two. Their flippers are paddle shaped with rounded ends and flukes are tapered back and pointed at the end resembling to a triangle/pyramid
Shirihai, H. and B. Jarrett (2006). Whales, Dolphins and Other Marine Mammals of the World. Princeton, Princeton University Press. p.185-188.
Killer whales have a recognizable coloration with a black back and white belly. They also have a noticeable o...
The origin of modern day whales, a mystery that has puzzled paleontologists for years, may have just been solved with the discovery of an ankle bone. This discovery might sound simple and unimportant, but the bones of these ancient animals hold many unanswered questions and provide solid proof of origin and behavior. The relationship between whales and other animals has proven to be difficult because whales are warm-blooded, like humans, yet they live in the sea. The fact that they are warm-blooded suggests that they are related to some type of land animal. However, the questions of exactly which animal, and how whales evolved from land to water, have remained unanswered until now.
The quest to gain international agreement on ethical and legal norms for regulation of whaling has had a long and troubled history. The modern phase of global concern over whaling ethics and conservationist management originated in 1946, when the International Convention on Regulation of Whaling was signed. Thus, the International Whaling Commission was created. The International Whaling Commission was designed to control and mandate the whaling industry. From it’s beginning as simply a whalers club with scientific guidance, to the current day conservationist body, the IWC has undergone many revisions and transformations since the start.
A hero is someone who will attempt everything in their power to help others and risk everything they have to help others. In the movie, The Whale Rider, you can clearly see all the elements of The Hero’s Journey. A young girl named Paula Apirana, is living in a small village with her grandparents. Paika’s dad, who is living in Spain, returns to see Paula and proposes that she should come live with him. She declines the offer and decided to stay with her grandparents. Paula then secretly tries to learn the important ritual, that only males are allowed to learn. Her grandpa, Paka, gets extremely angry at her until he realizes that she is the “chosen one” to perform the ritual. Paika goes through many difficult challenges, however she manages
Orcas, or killer whales are majestic giants of the sea. They are actually the largest type of dolphin. They have long black bodies with distinct white patches near their eyes. A killer whale can be up to 32 feet or more in length, and weigh up to 12,000 pounds. Females are a bit smaller, but live longer (Gorman). The name “killer whale” apparently came not because it is a vicious whale, but because it preys on whales. They do not have any natural predators, and they are considered the “top dog” of the ocean. Not even the great white shark stands a chance against these superb killers. “Unlike sharks, killer whales are cautious hunters, sometimes spending hours harassing a 1,000-pound sea lion so it can easily be drowned” (Francis). Orcas use many hunting tactics that are unique to their species, which is what makes them invincible.
The morphology of whale sharks is mostly similar to aquatic fish species, but many specific traits help differentiate them from the rest. Whale sharks are the largest fish in the world and can reach a size of around 20 meters (Martins, C., and C. Knickle). This is often compared to the size of a school bus. The shark has a very large transverse mouth. They have 5 very large gill slits and have a larger first dorsal fin compared to the second one (Whale Shark). They have a distinctive spotted “checkerboard” pattern with stripes (Martins, C., and C. Knickle). It is not exactly known why they have this specific body marking. It is believed that the body markings act as a camouflage. The strange thing about whale sharks is that they have 300 rows of teeth that play no role in feeding (Martins, C., and C. Knickle).
The Humpback Whale, Megaptera novaeangliae, is part of the marine mammals group. They are found in oceans all over the world, they live in open waters. Even though they are mammals, they do not live on land (Monterey Bay Aquarium). Humpback whales are known for their magical song that can travel great distances. These gentle giants are omnivores, their main diet is krill. They are mostly found near coastlines feeding on tiny shrimp-like krill, plankton and small fish. Humpbacks migrate annually from summer feeding grounds near the poles to warmer winter breeding water closer to the Equator. Humpback whales are powerful swimmers, and they use their massive tail fin, called a fluke to propel themselves through or even out of the water! Mothers and their young swim close together, often touching one another with their flippers with what appears to be gestures of affection. Even though it takes more than one year for a humpback whale to grow fully, mother whales leave them after one year (National Geographic).
Did you know that more than 90 percent of all organisms that have ever lived on Earth are extinct? According to Pandey, the author of Humans Pushing Marine Life toward ‘Major Extinction’, nearly 10,000 species go extinct each year, and this rate is estimated to be 1,000 times higher than the natural extinction rate (1). Human beings are causing irreversible damage to the oceans and their wildlife, which is being led by two major reasons: Commercial fishing or over-fishing, which damaged the marine environment and caused a loss in the marine life diversity, and pollution, which is a primary way of the extinction causes that drastically modifies the marine life habitat. As a result of the commercial fishing and pollution, many of the marine species will start disappearing of the oceans. Briggs emphasizes that over-fishing “has induced population collapses in many species. So instead of having less than a hundred species at risk, as was the case some 30-40 years ago, there are now a thousand or more (10).”
Watkins WA, Daher MA, Fristrup KM, Howald TJ (1993) Sperm whales tagged with transponders and tracked underwater by sonar. Marine Mammal Society. 9(1):55-67
Did you know in the world there are more than 90 species of whales, dolphins, and porpoises? (WDC) The dolphin is a very important animal to the ocean and there are many different types to discover. In order to learn about dolphins, it is important to discuss where they live, their appearance, and what they eat. Some helpful words to understand are “dorsal fin”, a dorsal fin is the top pointed fin on the dolphins back, “flippers”, a flipper is a flat fin that dolphins use to swim, and “echolocation” is a tool dolphins use to find food by sounds bouncing off of objects (dictionary.com).