North Pacific right whale surfacing in gray coastal waters with white head markings


Species Quick Facts

Scientific Name
Array
Average Lifespan
Array
Average Weight
Array
Average Length
Array

Overview & Identification

Array

Behavior & Social Structure

Array

Diet & Hunting Patterns

Array

Reproduction & Life Cycle

Array

Threats & Conservation

Array

Interesting Facts

Array

Description

The North Pacific right whale, scientifically known as Eubalaena japonica, is a majestic and immensely rare baleen whale species. These gentle giants are characterized by their colossal size and thickset build, making them a sight to behold in the open ocean. With a streamlined body and a wide, deeply notched tail, they possess a serene and awe-inspiring presence in their natural habitat.

Appearance

The North Pacific right whale is distinguished by its very large head, accounting for approximately one-quarter of its body length, and prominently arched jaws. Their bodies are adorned with light, wart-like spots, adding to their unique and recognizable appearance. These distinct features set them apart from other baleen whale species and make them easily identifiable to seasoned observers.

Distribution

The North Pacific right whale can be found in the Northeast Pacific, particularly during the summer months when they migrate to the southeastern Bering Sea and Gulf of Alaska. Their distribution extends to the coastal and continental shelf waters of this region, where they seek out suitable feeding grounds and breeding areas. However, it’s important to note that this species is extremely rare and endangered, with only a few hundred individuals thought to survive in these waters.

Habitat Preferences

These magnificent creatures prefer coastal and continental shelf waters, often gravitating towards areas of high productivity where their primary food sources, such as zooplankton including copepods, euphausiids, and cyprids, are abundant. The Sea of Okhotsk, around the Commander and Kuril Islands, and off the Kamchatka Peninsula serve as important feeding grounds for the western population of North Pacific right whales during the summer months. Their survival and well-being are intricately linked to these rich and diverse ecosystems, which provide the necessary sustenance for their continued existence.

It is imperative to recognize the critical importance of conserving and protecting the habitats of the North Pacific right whale to ensure the preservation of this endangered species for generations to come.

Facts About North Pacific Right Whale

  • The North Pacific right whale (Eubalaena japonica) is one of the rarest and most endangered whale species in the world.
  • They are known for their slow-swimming behavior and lack of a dorsal fin.
  • Adult North Pacific right whales can reach lengths of up to 55 feet (17 meters) and weigh up to 100 tons.
  • These whales have baleen plates for filtering food from water, and they primarily feed on zooplankton.
  • The estimated population of North Pacific right whales is only a few hundred individuals.
  • They are found in temperate and sub-arctic waters in the Pacific Ocean between 20 and 60 degrees latitude.
  • North Pacific right whales have a life expectancy of 50-100 years.
  • They were nearly driven to extinction by commercial whaling in the 19th century.
  • The species was listed as endangered under the Endangered Species Act in 1973.
  • The North Pacific right whale is also known as Eubalaena japonica.

Explore Other Species Profiles