The reasons behind the low population of right whales

Charles "Stormy" Mayo, director of right whale ecology at the federally funded Center for Coastal Studies in Provincetown, says ominous signs suggest the global population of animals is slowly declining — not incrementally rebounding as experts had hoped a year ago. And the whales, it turns out, can be pretty ornery. The Associated Press asked Mayo about how the whales — some of the rarest creatures on the planet — are really faring.

The reasons behind the low population of right whales

According to scientific evidence, blue whales are the largest creatures to dwell on Earth, after the dinosaurs. But the sad fact is that these amazing creatures were designated as endangered for a long time and there is no improvement in their numbers.

AnimalSake Staff Last Updated: Mar 19, Reasons Behind Endangerment of Blue Whales Not all types of whales fall in the list of endangered species.

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Blue whales have perhaps come to this state because of their large size, which drew a lot of human attention towards them. Human infiltration in the blue whales territory is the most obvious and basic reason for these large sea creatures to be included in the list of protected species.

THE ANNUAL SOUTHERN RIGHT WHALE AREAL SURVEY

The average length of a blue whale is meters and its weight range is between and tons. These whales are not really blue in color but are actually gray. They have huge pleats on the skins of their neck, which allows them to consume a lot of water. The water is filtered out by the baleen, which is a comb-like structure present in its throat.

They use low frequency sound waves, above decibels, to send sound signals. This is even higher than the sound produced by a jet fighter.

The reasons behind the low population of right whales

Once, there were more thanblue whales that swam in the oceans. Other major regions are the Antarctic Ocean and the Davis Strait. Why are Blue Whales Endangered? There was a time, when the blue whale was a major animal in every large water body of the world.

But the arrival of the whale hunting era, diminished the whale count by such a massive number, that blue whales are still endangered today.

The reasons behind the low population of right whales

The reasons for whaling were multifold. Their large size mistakenly led mariners to believe that such a huge animal could be a deadly threat in the sea. Also, whale blubber and meat were desired products from this oceanic mammal. But early whaling was restricted by primitive tools and whaling techniques.

So the damage to whale populations was controllable. With the advent of powerful harpoon guns, steam-powered boats and the stern slipway in whaling ships, whaling advanced, with more whales being hunted at a rapid rate. In alone, 29, whales were killed.

Blue whales also have a slow rate of reproduction. A female blue whale gives birth to one calf, every two years. Bythe International Whaling Commission declared blue whales as protected animals and banned blue whale hunting in international waters.

Heavy sea traffic causes accidents, where blue whales are injured by ships or cargo vessels. Deep-sea fishing involves using large nets and trawling equipment, in which blue whales can get entangled and drown. The International Whaling Commission, has taken steps to protect these wonderful creatures.

Committees of experts have been formed to work against whaling, entrapment and predation of blue whales. But their population remains low. Recent blue whale statistics indicate between 12, of these ocean-dwellers remain.The 25th annual census of southern right whales in the Great Australian Bight has revealed a significant drop in their number, defying the predictions of marine scientists.

Sperm whales; Right whales; Bow-head whales; Gray whales; Humpback whales; This common practice at the time soon became the reason behind America's rapidly growing economy as their whaling industry had boomed at the time due to the success in the industry from the profits made from the whaling industry's productivity.

Researchers Explore Decline in Right Whale Population November 2, at am by Stephanie Pernett Human activities have placed populations of many endangered species at risk, and mitigation efforts typically focus on reducing environmental sources of mortality.

For the North Atlantic right whale, for example, whose population was estimated at in , down from in , these two anthropogenic factors alone account for 48% of Class: Mammalia.

The southern resident killer whales (SRKW) are the most threatened population. They experienced an unexplained % population decline between , but then showed periodic decline to their current number of 78 individuals.

Greenland whales, Balaena mysticetus, the European preferred whale of commerce for centuries, were a “right whale” and were commonly called Greenland right .

THE ANNUAL SOUTHERN RIGHT WHALE AREAL SURVEY - Ocean Blue Adventures