Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
- Order
- Artiodactyla
- Family
- Ziphiidae
- Genus
- Mesoplodon
Habitat
This species inhabits deep, offshore waters of the North Pacific, particularly in cold temperate to subarctic regions. They prefer depths greater than 1,000 meters, often found near the continental slope or around oceanic islands like the Aleutian chain. Their range includes areas from the Bering Sea south to Japan and the west coast of North America.
Diet
Stejneger's beaked whale primarily feeds on deep-water squid and fish, such as Gonatidae squid and myctophid fish. They use echolocation to hunt in the dark depths, typically diving for 20-60 minutes at a time. Feeding occurs mainly at night or during deep dives to avoid surface predators.
Behavior
These whales are typically found in small groups of 2-7 individuals, often traveling quietly and avoiding boats. They are deep divers, capable of reaching depths over 1,000 meters, and spend most of their time submerged. Stejneger's beaked whales exhibit low social interaction and are generally elusive, making them hard to observe in the wild. Territorial behavior is not well-documented.
Conservation Status
Stejneger's beaked whale is classified as Data Deficient by the IUCN, with no clear population trend due to limited data. Major threats include potential entanglement in fishing gear and noise pollution from military sonar, which may disrupt their deep-diving behavior.