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Blue Whales

In: Historical Events

Submitted By jeggs24
Words 755
Pages 4
There are many endanger marine species. one species that is endangered is the blue whale. The blue whale evolved around 45 million years ago, thats 40 million years before humans (marinebio.org-Blue Whales). Blue Whales are members of the Order Cetacea family. Blue whales can live in. According to wwf.panda.org The blue whale is found mostly in cold and temperate waters, and it prefers deeper ocean waters to coastal waters. Like many other baleen whales, it feeds in cool waters at high latitudes, and generally migrates to warmer temperate and tropical waters to breed and give birth. The blue whale is considered an endangered because of its population size, they have a population of 10,000-25,000. They weigh about 200 tons and can grow to be 80-100 feet long. Blue whales are Lightly mottled blue-grey, with light grey or yellow-white undersides (Alagiyawanna 1). Blue whales also can live in all of the oceans. According to SCIcyclopedia, A female blue whale, which is larger than the male, gives birth to a calf that averages 25 feet in length and weighs about 2 tons. The calf drinks about 106 gallons of milk every day (Katona 1). A blue whale can eat up to 8,000 lbs. of krill during its consumption period. It is estimated to take 2,200 lbs. of food to fill a blue whale's stomach. Blue whales can swim normally at five miles per hour but can reach speeds over 20 miles per hour when agitated. Blue whales are one of the earth’s loudest animals they emit a series of pulses, groans and moans. Scientists also believe that if the whales are in good conditions, they can her each other at distances of up to 1,000 miles away. They believe these vocalizations are not only used for communication but also for navigating the dark depths of the oceans. (Fleeks 1) The blue whales are endangered species. Blue Whales wouldn't be considered endangered if it there weren't any threats that they are facing. The blue whale’s biggest threats are colliding into vessels and fishermen. Some additional threats that could potentially affect their population could be anthropogenic noise, habitat degradation, pollution, vessel disturbance, or long-term changes in climate (Barlow 1).The total population has been depleted by at least 70%, and possibly as much as 90%, over the last three31 years (Taylor B.L 2). This means the species meets the criteria for an endangered species, and it probably meets the criteria for it to be critically endangered. Blue whales are also endangered due to extensive hunting by humans. Humans have been hunting whales for the last 3,000 years (Catanzariti 1). Another reason blue whales are endangered and can possibly go extinct one day is due to climate change. A new report according to Liberty Voice warns that whales in Southern Ocean face two threats, a shortage of food and a loss of hunting grounds because of global warming. The most important food in a blue whales diet is Krill, Krill thrive in ice covered water and any little bit of global warming will decrease the Krill population, reducing the amount of food available for the whales. There aren't many ways to prevent the blue whales from being and endangered species but there are some ways to prevent the whales from going extinct. One way to save the whales would be to stop over fishing, by overfishing humans take away the necessary food sources for the whales. Also by not over fishing it lowers the risk for a whale to collide into a boat and get injured. There is no way to prevent a whale from colliding into one of the giant ships, but captains can try to be a little bit more cautious about what it swimming under their ship, they are the biggest living mammals. We also cant prevent global warming but by reducing all of the other problems, this will make global warning’s affects on the whales less severe. We have also lowered the pollution in all of our oceans which was a huge threat to the blue whale population.

The blue whale is an endangered species and it is our job to prevent this. They do no harm to us and they are one of the most special animals in the world. If the blue whale’s population continues to be endangered, there population will continue to decrease and eventually all blue whales will be extinct. Blue whales must be saved.

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