It is believed by scientists that blue whales migrate for two reasons. The first reason is to get to the warm waters of the Pacific Ocean during wintertime to give birth. The second reason is to go back to their birth place, the Indian Ocean. It is believed that whales do not migrate just for the weather, but they must feel comfortable in the warmer temperature of the ocean. Scientists believe that whales sense the pressure of the sun as they move from the southern to northern parts of the Indian Ocean.
Scientists believe that blue whales migrate for about six weeks every year. They usually arrive in the Indian Ocean in April, spend the next six weeks breeding in deeper waters, and then leave in late July or early August to go back southward. They are present in all the world oceans, and are believed to travel towards the Arctic Ocean in the spring for the cold winter season to make baby calves. They are also thought to migrate to the Antarctic Ocean for the wintertime to feed.
During the wintertime when the whales make their migration, they lay down sails on their backs and head south. This is known as a hunt. It has been estimated that over forty million blue whales migrate annually, with an additional twenty five million heading out to sea for breeding grounds. Of this twenty five million, nearly twelve million are on a feeding trip, while the remaining twelve million are making their way to the warmer waters of the Pacific Ocean.
With the winter closing in, the whales head out for a migration back to their spawning grounds. During the migration process, the older females give birth, followed by the younger ones. There is an average of thirteen months for the entire breeding cycle to occur. The migration is not for only one species of blue whale; it is for both of them.
With the blue whales migrating, there is a peak time for finding their feeding grounds. Some species of whales will travel thousands of miles every year in order to seek out their next feeding area. Others will spend more time searching for a new feeding ground. Whales travel at different speeds and in different ways, but they all end up heading back to the same place to feed. Because the food they eat is frozen before they eat, the whales must be careful that they don’t eat too much of it while they are traveling. That would cause them to get sick.
To follow the blue whales migration route, you can follow whale watching tours, or you can fly into remote areas where you can get up close to the whales and observe them from the air. You will be able to see their movement patterns and know when to expect their arrival. This helps people to prepare for the migration so they can enjoy it when it happens. People also travel from far away just to see the whales and to have the chance to view these amazing animals up close. The sight of a blue whale is one of nature’s great sights and is definitely worth the journey.