Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Decrease in blue whale population
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Decrease in blue whale population
The Blue Whale’s scientific name is, Balaenoptera musculu, and it can be separated into three groups: the Southern Blue Whale, Pygmy Blue Whale, and the Northern Blue Whale. These Blue Whales have become an endangered species because of the threats from acoustic pollution, entanglement from human debris, physical injury or death from ship strikes, man-made structures impacting their habitat, the changing of the quality water and water pollution, and altered currents nearshore habitats.
Learning about the Blue Whale facts will help in learning more about the Blue Whale and also will also reveal some characteristics that make the Blue Whale so desirable to those who hunt them. The Southern Hemisphere’s Blue Whale can reach up to 98 feet in length and it can weigh up to 160 tons. While the Northern Hemisphere’s Blue Whale can reach up to 89 feet in length and can also weigh about 160 tons. The Female Blue Whales are larger than their male counterpart. The Blue Whale is the largest animal in history and the biggest Blue Whale was ever recorded was 110 feet long and weighed over 200 tons! The body of the Blue whale is tapered and streamlined to help increase the Whale’s swimming speed.
The Blue Whale got it’s name for the color it possesses. Although they have the color “blue” in their title, they are actually a blue-gray color and only looks aquamarine in the ocean water. The Blue Whale is also known for their sulphur color because it is the color of their undersides. Although they are blue, there are some color variations that help us identify the whale individuals. The Flippers may be a light color or just white, and the underside of the fluke is dark. In the Northern Hemisphere, diatoms attach themselves to...
... middle of paper ...
...rn Blue Whales have been almost hunted to extinction. Even though their is a ban on whaling, there is still illegal activity that goes on. This is caused by the greed that humans have. They do not understand that by hunting, they might wipe off the Northern Blue Whale into extinction. Ways to stop this is too have a parole in the waters of the North Atlantic in my opinion. They need to have strict rules and radar to monitor every ship and what it is doing. Even if it costs a lot of money, you have to do whatever it takes to save one of the most majestic creatures in this planet.
Overall, I think that the ban on Blue Whales have further helped the population to start to rebuild and revitalize itself. Even though there are still natural threats to the Blue Whale like climate change, humans can still help these animals by not adding threats to them by hunting.
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.
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.
In 1982 the IWC voted to implement a “pause” on commercial whaling (which is still in effect today). Which major whaling nations, Japan, Norway, Peru, and the Soviet Union (later replaced by Russia) lodged formal objections, due to the fact that the moratorium was not based on advice from the Scientific Committee. One major disappointment of this regulation was due to the fact that the moratorium only applies to commercial whaling. Thus, whaling under scientific-research and aboriginal-subsistence is still allowed. Japan and other countries have continued their hunt in the Southern Ocean Whale Sanctuary under the “scientific research” loophole.
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.
Shirihai, H. and B. Jarrett (2006). Whales, Dolphins and Other Marine Mammals of the World. Princeton, Princeton University Press. p.185-188.
Whales living in captivity become aggravated and have been known to take out anger on themselves by self harming. In the pools they live in, metal bars are placed in between the pools to prevent the killer whales from swimming to another pool. On several occurrences, the whales have attempted to bite and break the metal bars. This leaves the whales with broken teeth and a risk of infection. Infections in killer whales can lead to death in many cases. If a whale gets an infection, they have to be taken out of the pool and placed into another pool by themselves to prevent any problems with other killer whales they live with. In many cases, whales with infections need serious care from whale specialists.
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
The blue whale and its relatives are called baleen whales because they have a feeding structure known as baleen that takes the place of teeth. Baleen is made of a flexible material containing a protein called keratin, which is also found in your fingernails and in the hooves of horses and cows. Baleen plates hang down from the roof of the whale's mouth in rows, somewhat like the teeth of a comb. The inner edges of the baleen plates are fringed and look hairy.
...have been so dependent on humans and because whales who need to be rehabilitated cannot perform as well as those who are great condition, thus causing limited income for SeaWorld. There is a fine line between rehabilitating an animal and later releasing it and keeping a whale for profit and entertainment purposes only.
A killer whale doesn’t have very many enemies. One of a killer whale's biggest enemies is the human species. Humans have been hunting killer whales since the 12th century; whalers around the world have killed thousands of killer whales. Other threats to killer whales are toxic wastes, oil spills, and garbage in the oceans. Oil spills are extremely dangerous because not only do they damage killer whales, but also they will hurt any thing else in the oceans. Garbage kills ocean life worldwide every year. Currently the threats are
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).
Orcas, also known as killer whales, are amazingly intelligent and are a top predator, much like humans. However, when the top predator of the ocean collides with the top predator of land, the situation can become fatal for both humans and the whales. Holding these incredibly massive marine animals in captivity is not only inhumane and detrimental to the whale’s health, but also a potentially fatal activity for humans to participate in.
If Australia leads the way to making stricter rules to save the lives of these majestic creatures, the variety of species can recover. Overall the humpback whale has moved from 'vulnerable' to 'least concern' on the IUCN Red List, a list of the worlds species facing the highest risk of extinction. This means that overall humpback whales are less likely to become extinct which is a level needed for all whales. This is a great recovery however it is not enough to restore the marine balance in the oceans. We need at act NOW, in order to safeguard the futures of our worlds whales.
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 whale shark is a species with a fascinating ecology, life history, behavior, anatomy and physiology. Background The whale shark’s broad, flat head and large mouth make it very recognizable. Females typically grow to be bigger than the males and weigh anywhere from 47,000lbs to 66,000lbs as adults.