What is the gestation period for a humpback whale20.04.2021
When Do Whales Reach Sexual Maturity?
Depending on the whale species, the average gestation period can range anywhere from 10 – 18 months. While some species can mate throughout the year, the most common time of year for whales to mate/bear offspring is during the colder winter months when various species travel to the warmer tropical environments to mate and give birth. Humpback whale gestation period: 11 months; Favoured birth temperature: degrees; Origin of Humpback Whale name: the name comes from their very long pectoral fins and knobby looking head which looks a bit like a hump! Easily tracked as identifiable by the unique markings on their tail fluke – so we can learn lots about them!
After a summer of feeding on krill in Antarctic waters, these charismatic animals migrate north to sub-tropical waters where they mate and give birth. And we are lucky enough to be able to easily spot them on their travels from our majestic coastline! During their annual migration of up to 10 kilometres, humpbacks can easily be seen off the coast of New South Wales and Queensland.
The exact timing of the migration period can vary from year to year depending on water temperature, sea ice, predation risk, prey abundance and the location of their feeding ground. The majority of humpbacks in Australian waters migrate north from June to August, and back towards the Southern Ocean from September to November. Groups of young males typically lead the migration while pregnant cows and cow-calf pairs bring up the rear.
Adult breeding animals form the bulk of the migration in the middle stages. All Rights Reserved. Suncoast Web Solutions Linux Hosting. Migration Grouping Groups of young males typically lead the migration while pregnant cows and cow-calf pairs bring up the rear.
Humpback Whale Facts Humpback whale length: 16 metres Humpback whale weight: up to 50 tonnes or 6 elephants! Average birth weight of humpback: 2 tonnes Birth length: metres Humpback whale gestation period: 11 months Favoured birth temperature: degrees Origin of Humpback Whale name: the name comes from their very long pectoral fins and knobby looking head which how much money should you have to retire at 62 a bit like a hump!
Easily tracked as identifiable by the unique markings on their tail fluke — so we can learn lots about them! Humpback whale travel speed: up to 8 km an hour Migration travel speed: humpback average only 1.
Diet and Hunting Methods
Life Cycle: The only thing that eats the Humpback Whale is the Killer Whale and sharks will sometimes eat baby humpback whales. Males will fight for a female. They live for about years. There. 64 rows · May 15, · Gestation period (days) Reference Min Max Average Alpaca: Baboon: . Copulation has yet to be observed so we can only presume that females identified in pairs and multiple male groups are involved in mating behavior. Once successful copulation occurs, the gestation period is 11 to months.
From Calf to Sexually Mature Whale. Humpback whales take approximately five to fourteen years to reach sexual maturity.
Not much is known about the behaviors of whales in the intervening years between being a newborn calf and a sexually mature whale. Juvenile whales seem to display the similar behaviors as other juvenile mammals: generally solitary animals often on the margin of social groups but not involved in the action. Some have been observed engaging in sexual or mating behaviors but for the most part, they seem to stay on the periphery of the action. Female humpbacks are seasonally estrous and come into estrous in the winter.
At this time, male humpbacks testosterone production and spermatogenesis also peaks. The combination of these hormones and the mass concentration of whales in the breeding grounds resulting from migration leads to the flurry of mating activity we observe on the breeding grounds each year.
Whale Copulation and Gestation. Copulation has yet to be observed so we can only presume that females identified in pairs and multiple male groups are involved in mating behavior. Once successful copulation occurs, the gestation period is 11 to Subscribe Volunteer Donate Shop. Skip to main content Skip to footer.