Blue whales, also known as (Balaenoptera musculus), are considered one of the largest animals today (NOAA). A blue whale can grow up to “80- 100 feet in length and may weigh up to 200 tons” (World Wild Life). As shown in the figure A, a blue whale has a mottled bluish with broad flat head and a small dorsal fin located near the tail. Figure C furthers shows the morphology of a blue whale. A blue whale can have about “320 black baleen plates in the mouth, 2 blowholes, and many blue-gray white spots” (ZoomWhale). A blue whale is toothless, and this can be a problem when scientist tries to date the age of animal based on it’s teeth. However, it is estimated that a blue whale can expected to live past 50 years (NOAA and World Wildlife).
Figure A and Figure B
Blue whales tend to feed on krills in cold water at high latitudes during the summer time (WWF). On other hand during
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Looking at Figure C, we can say more than 200,000 blue whales has been killed as results of overhunting. In 1966, the International Whaling Commission banned commercial whaling for blue whales, but illegal hunting still occurs (NOAA). While blue whales are no longer being threatened by overhunting, their population is drastically depleted. Like many other marine species, blue whales are being harm by many others factors today. This include collisions of ships, chemical pollution such as oil spills, and noise pollution from vessels (Eco). The population of blue whales is known to be around “10,000 to 25,000 ” (World Wild Life).
Figure C Graph from http://www.marinemammals.gov.au/ shows decline of blue whales in the last century. NOAA confirms blue whales can still be found in every part of the ocean today. The purple shaded space on the map shows where blue whales have been found
Figure
One of the things this company claims is that the killer whales actually live longer in their care. According to the website Sea World of Hurt, this is completely false, killer whales in the wild have a similar life span to humans, they can live from anywhere to 50-100 years. Held captive, these animals hardly live past twenty-five years. In the wild, an orcas dorsal fin is straight, which is the way it should be. In captivity, you will mostly see their dorsal fins flopped over or completely collapsed.
The Killer Whale is a part of the toothed whale (odontoceti) suborder. The toothed whale suborder is consisted exclusively of porpoises, whales and dolphins that are born with teeth, instead of baleen plates. The Killer Whale is the largest animal in the dolphin family and is the only known to attack sharks, whales and other marine mammals.
Although the trainers are not allowed to be in the water with them, the trainers still use the same tactics of training. Some of the tricks the whales practice on a daily basis are, waving, showing off their teeth, laying on their side, and squirting water out of their blow hole. The shows still consist of the same concepts and the crowds continue to pay to see the whales do tricks. Whales living in captivity remain in distress and continue to lash out at trainers and other whales in their pools (10 Things You Didn’t
You’re sailing in a whale watching boat in the big blue open water of the Northern Pacific Ocean. You spot a lonely seal on an iceberg and then suddenly a fast wave approaches it. The seal slips off the iceberg and falls into the mouths of two generations of hungry Orcas. Killer Whales which are widely distributed in the world’s ocean, but the status of most populations of killer whales is unknown (Killer Whale (Orcinus orca)). But soon the killer whale will become rare and vanish if we don’t do something remarkably fast.
How would you feel if your mother was murdered directly in front of you and you were only a few weeks old and you did not know how to fend for yourself? That's what these poacher are doing of these whales. They look for mother with fairly new calves because it means they have more fat on them. The more fat the more oil they produce which makes for more money. In Greenland they kill at most ten whales a year. While in Japan they kill five hundred and thirty to seven hundred
After watching several documentaries on how poorly killer whales are treated in captivity, it drew me into researching more information on the treatment of Killer whales that are kept in captivity. I found several scientific journals, and articles on wild life facts of killer whales and I found published books on the treatment of killer whales in captivity. The information I found includes both wild killer whales and killer whales kept in captivity. With the information I found, I plan to prove the shortened lifespan and health problems killer whales get while living in captivity are not normal. In fact the information you learned about killer whales from aquariums and commercial parks are false. This paper will argue why killer whales should not be held captive in commercial parks. This Paper will include information on the killer whale’s diet, the killer whale’s communication, and the killer whale’s physical traits.
In the world today, we know that whales are majestic creatures with amazing lifestyles that we don’t completely understand. We also know that however large they are, they are in danger because they have been over hunted and over used by human beings. Today through Commercial Whaling, the whales of the oceans have been put at risk and their population continues to decrease. Countries such as Japan, Iceland, and Norway defy the rules set by The International Whaling Commission under the pretense that they’re whaling for scientific reasons, when in reality they are whaling for commercial reasons of profit. Commercial whaling is a problem in countries around the world, most prominent are the Japanese, and other countries are Iceland and Norway. Over time the status of the whale population has declined because of the increase of technology in whale hunting.
Orca whales do not like to be taken from their family, held captive for many decades and put with other whales that they do not know. No other living organism on this planet would like to be put through the same thing. Orca whales are highly social animals, they are very intelligent, and are very emotional. If they are kept away from other whales, fed intermittently and received little attention from staff makes them get very emotional and can lead to death of people and the whales. Orca whales should not be held captive; they are beautiful creatures that are not great for people’s amusement and if they are treated poorly, they will act poorly.
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.
Whales generally live 20-40 years and usually have a 9-15 month gestation that leads to usually 1 offspring("Whales"). Since whales are mammals whom live underwater, they have to plan when they breach to the surface to breathe through their blowholes. It is very difficult for whales to sleep because " they can not afford to fall into an unconscious state for too long, since they need to be conscious to break the surface in order to breathe"("Whales"). Whales use echolocation to detect their surroundings and communicate with other whales. When whales communicate they use lyrical sounds. It is also believes that whales slap their tails to warn other whales about danger("Whales"). Back in the the days before oil drilling, people killed whales and used the blubber of a whale for oil. Now they have to face the dangers of poaching, climate change, and underwater sonar testing("Whales"). Many people whale watch when humpback whales visit each year from November to
The 19th century brought steam and diesel powered boats as well as an exploding harpoon gun to catch even more whales than in the past for oil and meat. Despite drastically low numbers, whaling continued in the 20th century until only 10 percent of blue whales were left. As a result, the International Whaling Commission (IWC) was created in an effort to regulate whaling before it was too late. In 1966, the IWC banned the killing of blue whales and placed restrictions on others (Earle, 2009, p. 43). In the 20th century, Japan killed the second highest number of whales at 21 percent after Norway at 27 percent (Earle, 2009, p. 42). Unlike cows, herbivores that are killed after a few years, whales live for decades and are not replenished, leading
In Iceland the domestic whale that is served is the Minke Whale that is not in any way endangered and is the most abundant whale today. In order to keep it that way the government of Iceland must put regulations in place so that it does not face a repeat of what was experienced when the whaling industry started over developing and bringing the near extinction of many whales bringing us back to the problem of “over whaling”. The truth is that even the iucn red list of endangered species agrees with the fact that in the past iceland managed to have a sustainable minke whaling with stating that “About 4,000 minke whales were taken off Iceland during 1941-85, but recent abundance estimates imply that this would have had no discernible effect on the
...nd also the earth. If whales become extinct then there could be a rapid increase of small aquatic animals that could harm the marine food chain then further kill marine ecosystems. This is because whales help regulate the flow of food by helping to maintain a stable food chain.
Humpback whales breath voluntarily, unlike humans. Since they have to remember to breath, researchers believe humpbacks sleep by shutting off half of their brain at a time. Like orcas and dolphins, humpback whales have noses at the top of their head called blowholes (Animal Planet). Humpback whale calves do not stop growing until they are ten years old (National Geographic). They breed, give birth and care for their newborn calves in the warm waters of Tonga. Instead of teeth, humpbacks have baleen plates, they are brush-like strands of bristle that trap there food until it is swallowed. They have very odd mouths that curve downwards, like an eternal frown. Humpback whales are amazing marine mammals (Big Animal Expeditions)
One must also take into account the nature of blue whales. Dolphins, orcas and sperm whale are gregarious, social animals by default. However, blue whales live solitary lifestyles. This might be 52’s preferred style of