Killer Whale - NOAA Fisheries
2024年10月22日 · The killer whale is the largest member of the dolphin family. The population of Southern Resident killer whales in the Pacific Northwest is one of the most critically endangered marine mammals. Learn about our work to protect and conserve killer whales.
New killer whale species: Bigg's and resident killer whales | NOAA ...
2024年3月27日 · Long viewed as one worldwide species, killer whale diversity now merits more. Southern Resident Connections - Post 35 Scientists have resolved one of the outstanding questions about one of the world’s most recognizable creatures, identifying two well-known killer whales in the North Pacific Ocean as separate species.Killer whales are one of ...
Southern Resident Killer Whale (Orcinus orca) | NOAA Fisheries
Learn more about the Southern Resident killer whale’s status, management, recovery efforts, and outreach and education partnerships. In 2005, the Southern Resident killer whale was listed as endangered under the Endangered Species Act.
First Direct Evidence of Killer Whale Predation on Bowhead Whales …
2020年9月14日 · A photographed carcass of a bowhead whale calf showed killer whale rake marks on its flipper, and injuries to its jaw and mouth. “As far as we know, that was the first documented case of killer whale predation on a bowhead whale in the eastern Chukchi and western Beaufort sea,” said Willoughby.
NOAA Fisheries Releases Report on Killer Whale Entanglements in …
2023年12月14日 · NOAA Fisheries has released a new technical memo, Killer Whale Entanglements in Alaska: Summary Report 1991–2022. It provides comprehensive detail of 37 reported killer whale entanglement cases in Alaska over the past three decades.
Whales - NOAA Fisheries
This curriculum introduces killer whale (orca) biology, research and management through the story of an orphaned killer whale named Springer, and illustrate how NOAA, the community, and other agencies both in the United States and Canada worked…
Why Do Whales Migrate? They Return To The Tropics To Shed …
2020年2月21日 · Over eight years, scientists deployed 62 satellite tags on killer whales. They found that all four types that feed in frigid Antarctic waters migrated as far as 11,000 kilometers (almost 7,000 miles) round trip. Most migrations were fast, non-stop, and largely straight north and back. One whale completed two such migrations in 5.5 months.
Whales and Climate Change: Big Risks to the Ocean's Biggest …
As their main prey, changes in salmon growth and migration patterns will reduce the Southern Resident killer whales’ ability to find sufficient food. Warmer ocean temperatures can also elevate the concentration levels of environmental pollutants, leading to higher contaminant concentrations in Southern Resident killer whales.
Southern Resident Killer Whales: Questions and Answers on Final …
2023年8月18日 · The killer whale, or orca, is found in all oceans. The Southern Resident killer whale DPS is composed of J, K, and L pods and consists of approximately 73 individuals. These whales are the "resident" type, spending specific periods …
Saving the Southern Resident Killer Whales | NOAA Fisheries
The Southern Resident killer whale is a West Coast icon and one of NOAA’s nine Species in the Spotlight. While other killer whale populations are thriving, the Southern Residents are struggling to survive against multiple threats.