Rare Sighting Of Tropical False Killer Whales Off Orange County Coast
Though false killer whales are listed as knowledge deficient by the IUCN Red List, the primary Hawaiian Islands population is listed as endangered beneath the U.S. As overfishing of commercially important fish shares proceed, false killer whales may have much less to eat. Additionally, bycatch probably happens where these mammals overlap with fisheries. This designation does not embrace most bays, harbors, or coastal in-water constructions.
As such, the species is designated as Data Deficient on the IUCN Red List of Threatened Species2. The species isn’t listed on either Appendix of the Convention on Migratory Species . There is severe concern, about the false killer whale population round the main Hawaiian islands, which was thought to number between one hundred fifty and 200 people in 2012, demonstrating a decline since ,17. As such, this population is designated as Endangered under the US Endangered Species Act.
Primary Hawaiian Islands Insular False Killer Whale Important Habitat Designation Map
There is little documentation of predators taking false killer whales, though a killer whale assault was observed in New Zealand. At least two false killer whales in Hawaii carry scars from massive shark bites, indicating that giant sharks target the species from time to time1,9. The species has been concerned in several mass strandings throughout its range13-15. Captivity – false killer whales are held in tanks and face the danger of being snatched from their households to be offered to the leisure trade. You’ll recognise these dolphins pretty simply due to their long, slender, black or dark gray our bodies, a slender pointed head with no beak and a distinguished bulbous forehead, or ‘melon’. They have lengthy, slim S-formed flippers that make them look as if they have elbows and a tall, tapered dorsal fin.
Playful and social, these dolphins get pleasure from hanging out with different species, together with bottlenose dolphins. They are susceptible to beaching in massive groups – maybe as a result of the noise we humans make underwater messes with their navigation. Sound travels a lot farther in water than mild, and cetaceans commonly use sound somewhat than vision to speak with each other and find meals. Just as cetaceans hear for one another and for their prey, we can hearken to their sounds to find teams of whales and dolphins. False killer whales can dive for up to 18 minutes and swim at high speeds to seize prey at depths of 300 to 500 meters.