Blog
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September 8, 2019
Top 5 Whale Photography Tips
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June 1, 2019
Vanlife Tips for Jervis Bay
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February 3, 2019
Sea weed to save the world!?
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January 23, 2019
Jervis Bay Dolphins Behaviour – Tail Slapping
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January 18, 2019
Beneath the Wharf
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January 7, 2019
Indigenous Weather Calender
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December 13, 2018
Mangroves of Jervis Bay
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December 8, 2018
Dolphins- Socialising in Jervis Bay
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December 2, 2018
5 of the BEST things to do in Jervis Bay (with kids)
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November 29, 2018
Which Cruise is best for me?
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November 26, 2018
What to Bring on a cruise in Jervis Bay
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November 22, 2018
Bottlenose Dolphin V Octopus Jervis Bay
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November 3, 2018
What was that sound? Pec Slapping Humpback Whales in Jervis Bay.
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September 11, 2018
Whales that visit Jervis Bay.
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September 8, 2018
Black Betty – Familiar Fluke
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September 3, 2018
Why is the water clarity in Jervis Bay so incredible?
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August 31, 2018
Familiar Fluke August- Blade Runner
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July 14, 2018
But do they get Hungry? Whales on migration.
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July 8, 2018
What is the difference between an ‘Eco Whale Cruise’ and ‘Whale Watch Cruise’?
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July 7, 2018
Humpback Calf Announcement
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July 1, 2018
Who is Migaloo?
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June 29, 2018
Whale Watching secret hint!
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June 18, 2018
Dolphin names, gangs & alliances
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June 16, 2018
Tekin III away at the Slipway
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June 11, 2018
Maternal Site Fidelity among Humpback Whales in Jervis Bay
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June 8, 2018
Coffee and Breaky in Jervis Bay
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June 3, 2018
The tale of ‘Old Tom’ – ‘Law of the Tounge’
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May 28, 2018
Is that fluke familiar to you?
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May 13, 2018
Aboriginal Australia and Interactions with Whales
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May 9, 2018
Seagrass Meadows of Jervis Bay
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May 8, 2018
Humpback Whale Migration
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May 6, 2018
What to wear Whale Watching
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May 4, 2018
Whale Watching Jervis Bay Frequently asked Questions
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May 3, 2018
Consciously breathing
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May 1, 2018
Capturing the best Dolphin and Whale Photos
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April 30, 2018
Humpback Whale Length and Weight
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April 27, 2018
Hold your Breath- The Whales are coming!
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April 27, 2018
Estimating the age of Bottlenose dolphins.
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April 24, 2018
Jervis Bay Marine Park
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April 23, 2018
Whale Watching Season
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April 20, 2018
Dolphin Watch Cruises – Advanced Eco Certification
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April 19, 2018
Jervis Bay- How to get here
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April 18, 2018
Life Span of Bottlenose Dolphins in Jervis Bay
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April 17, 2018
What is an estuary?
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April 15, 2018
When to visit Jervis Bay
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April 13, 2018
What Kind of Dolphins live in Jervis Bay?
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April 10, 2018
Dolphins- Why do the Dolphins in Jervis Bay have marks all over them?
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April 6, 2017
Easter School Holidays in Jervis Bay.
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March 28, 2017
Whale Watching Season
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February 28, 2017
Luxury Sailing on Jervis Bay
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February 7, 2017
Kids and Rain in Jervis Bay
May 3, 2018
Consciously breathing
Sleeping & Breathing
Did you see our earlier post about how dolphins and whales breathe? If you missed it, you can read more about it here.
But how do they breathe and sleep?!
Well, these incredible creatures are so clever they are able to shut off half their brain and sleep, while the other half focuses on breathing- rising to the surface for air and low level alterness and keeping one eye open- known as an alpha state.
Dolphins can remain in this state for 2 hours and then swap which side of the brain rests. Humpbacks tend to stay close to the surface for 10-15 minutes while resting in this alpha state. We refer to this behaviour as ‘logging’ as often the appear to be a log floating on the surface- we try to make sure we do not disturb whales and dolphins when resting like this to ensure their comfort.
How do they not drown?
To avoid drowning while they sleep they must be in control of their blow holes – and have enough consciousness to know if their blowhole is at the surface. Plus, when these marine mammals are resting often they are accompanied by another whale/dolphin for extra security. Often humpback calves sleep in their mothers slipstream dragging them along with very minimal effort from the baby!
Isn’t that incredible?!
