As many as 55 blue whales have been spotted near the island of South Georgia. Why are blue whales so important? South Georgia is an island wildlife sanctuary, full of all kinds of animals from penguins to seals to albatrosses. Why are there so few blue whales in the wild? Humpback whale numbers have also been rising near South Georgia, with over spotted during the three-week survey.
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Their numbers are dangerously low, and aggressive conservation methods are necessary to offer them hope of survival. One of the main causes of death of the right whale is due to head injuries, often due to collisions with large boats that frequent their habitat. Research has been carried out to identify the patterns of these whales, in order to divert large vessels from their main destinations. They start giving birth at nine or ten years and the duration of pregnancy is around one year.
The interval between births seems to have increased in recent years and now the averages are three to six years. Before there was an average of 12 calves per year but between and that figure increased to a range between 16 and Pregnant females migrate in the winter to subtropical waters Florida and Georgia and births take place there. From to , the species seemed to be on the right track: its population was growing. By , the population had increased from approximately to , reaching a maximum of fewer than whales in At present, the population of the Glacial Frank Whale in the western Atlantic has about specimens.
Since , 50 whales have died, of which at least 19 were due to collisions with ships and 6 when entangled in nets. These data, although good, are not very encouraging since they would imply an increase of 1.
Because it is an animal that nothing slow and that floats once dead is very easy to hunt. And his body yields the equivalent of 40 barrels of oil liters. The last few years have been desperate for the Right Whales. The 20 unprecedented deaths of whales in and represented a loss of more than 4 percent of the population in difficulty. In , 12 deaths were reported in Canadian waters and five in US waters.
UU So far in , three mortalities have been reported, all in the United States. It is estimated that there are some Southern Right Whales in the world at this time. The indiscriminate hunting of these specimens put her in danger of extinction.
In , a law was passed that declared a natural monument to all right whales that can be seen in the waters of Argentina. This decision is based on the imperative need to grant it due to protection. It reproduces and suckles its young in austral waters. In more than a thousand specimens of the southern right whale reached the coasts of Chubut, which represents the largest number in recent years. A total of 1, animals could be counted, of which are females with offspring and around adults, among females or solitary males that come to copulate.
The species is divided into two subpopulations. The other would be located in the Bering Sea and the Gulf of Alaska. After the great hunting campaigns that began in , where whales of all species were intensively hunted, the right whale populations of the North Pacific were on the verge of extinction as they had killed about 19, After these campaigns, the International Whaling Commission decided to ban its commercial fishing. It is in danger of extinction since its number is between and individuals.
The subpopulation of the Bering Sea was practically extinct, only solitary individuals were seen. In , 4 individuals were seen together for the first time. Since then the number of specimens identified varied between 3 and Years later, through genetic analysis, the increase in individuals was ascertained, which went from a maximum of 13 to 25 individualized animals. In , a whale with its calf was found in the area, being the only breeding female observed in years.
All this could indicate a slight population increase in this area. Live, in its entirety, in the fertile waters of the Arctic and sub-Arctic.
It is also known as Greenland whale or Right Whale of the Arctic. The Bowhead Whale is perhaps the longest living mammal with the largest mouth in the animal kingdom. The population has recovered since the commercial harvest of this stock ceased.
A study estimated that the Western Arctic Bowhead population was 16, This study puts the annual growth rate at 3. The global trade of whale products was banned and quotas were set for subsistence whaling to support indigenous communities.
The moratorium was largely successful, with the population of Western gray whales increasing from individuals in to in The WSA humpback whale , which numbered fewer than 1, for nearly 40 years, has recovered to close to 25,, according to the latest study. But the WWF says six out of the 13 baleen whale species are still endangered. The North Atlantic right whale is critically endangered , with numbers dropping from in to in As climate change causes its migration patterns to shift, the species is more at risk from collisions with ships as well as lethal entanglement in fishing gear.
Only more time will tell what impact the move may have on the future of whales and the whaling industry. The views expressed in this article are those of the author alone and not the World Economic Forum. Top COP26 stories: China and the US reach emissions deal; aviation sector seeks sustainable jet fuels; call for global agreement on sustainability reporting standards.
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