Rare Sighting Of Tropical False Killer Whales Off Orange County Coast
They won’t be the primary species that pops in your head when you think about dolphins, but they want our help urgently. The populations seem to be fairly unfold out, and are often present in deeper seas which signifies that we don’t know an awful lot about them. But there’s one inhabitants, who live in shallower waters off Hawaii, that is well–studied, and lots of what we do know comes from this group. False killer whales are so sociable they’ve even been recognized to supply food to human divers.
As such, the species is designated as Data Deficient on the IUCN Red List of Threatened Species2. The species is not listed on either Appendix of the Convention on Migratory Species . There is serious concern, in regards to the false killer whale population round the principle Hawaiian islands, which was thought to quantity between one hundred fifty and 200 individuals in 2012, demonstrating a decline since ,17. As such, this inhabitants is designated as Endangered underneath the US Endangered Species Act.
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 large shark bites, indicating that giant sharks goal the species from time to time1,9. The species has been concerned in a number of mass strandings all through its range13-15. Captivity – false killer whales are held in tanks and face the risk of being snatched from their households to be offered to the leisure business. You’ll recognise these dolphins pretty simply due to their lengthy, slender, black or darkish gray bodies, a slender pointed head with no beak and a prominent bulbous forehead, or ‘melon’. They have long, slim S-shaped flippers that make them look as though they have elbows and a tall, tapered dorsal fin.
The False killer whales mate throughout the year with peak periods, occurring from January to December and in March. Females give birth to a single calf, after which they don’t breed for about 6.9 years on common. Even after weaning, calves often remain in the same group with their mom. Males of this species are sexually mature by years old, whereas females attain maturity within years old. They are virtually all the time seen in affiliation with oceanic bottlenose dolphins. These bottlenose dolphins are completely different to the ones that are often seen up around the coastline.