April 17, 2018

What is an estuary?

What is an estuary?

Well.. think of the waterways around Jervis Bay- Moona Moona Creek, Currambene Creek, OR St Georges Basin (they are just local examples)

An estuary is somewhere that may be a temporarily or permanently exposed to the sea and subject to tidal changes. They can be as big as Sydney harbour or small lakes and lagoons.

Why are they important?

Estuaries are the heart of range of ecosystems and are constantly changing. They are the nursery grounds for many fish speices we see in Jervis Bay and which our dolphins feed on.

Estuaries are super important for filtering water and keeping our special bay pristine!

These habitats provide places for thousands of bird species to live and migrate to. Some visiting birds have travelled far and wide and are even protected by international agreements like RAMSAR.

How did we find this out?

What we have observed and learnt over time and:

https://schoolsequella.det.nsw.edu.au/…/applets/e…/index.htm

http://www.environment.nsw.gov.au/…/sta…/CurrambeneCreek.htm

 

Our cruises depart daily from the enterance of the biggest estuary flowing into Jervis Bay, often beneath the boats you can see schools of small fish seeking refuge.

 

"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!