November 3, 2018

What was that sound? Pec Slapping Humpback Whales in Jervis Bay.

What was that sound? Pec Slapping Humpback Whales in Jervis Bay.

Have you heard a Humpback’s ‘pec slap’?

Where a whale ‘slaps’ its pectoral fin on the surface of the water. These fins can be up to 6ft long! Often the whale is resting on it’s back or side exposing its large white underside, which is quite striking against the deep blue sea – or our beautiful Jervis Bay.

We most frequently observe this behaviour on the Southern Migration and see Humpback Calves testing out this skill for the first time!

I sometimes describe it as the “thhaawopp!” sound a foam body board makes when it is slapped on the water at the beach.

& have heard customers say it sounds like a crocodile snapping it’s mouth..

A finding from recent research suggests ‘pec slapping’ could be more commonly used as a form of communication when the wind picks up as vocal sounds become less audible….

🤔 How interesting!

 

The link below has more information for those curious about this peculiar behaviour and research.

 

https://www.newscientist.com/…/2114953-whales-talk-to-each…/

 

Featured Image: Maree Clout- Jervis Bay Through My Eyes

"A Great Afternoon on Jervis Bay"

We enjoyed a lovely afternoon on the Whale watch your on the big boat. We had planned to go on the short fast boat but they changed us to the tekin. All in all it was actually a good option for the afternoon. The staff were pleasant and there was basic tea and coffee served. We took some snacks which was recommended and a good idea. We saw at least 8 whales including some baby calves and enjoyed the scenery of the bay too. Worth it!