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A watery makeover …

14/8/2020

3 Comments

 
PictureThree shapes knee-deep in mud spark Neil Daly’s curiosity.
By Neil Daly

WE'RE lucky here, for along parts of the eastern arm of the Western Port foreshore, you can have the world to yourself – or so you think!

It was a warm summer’s morning in January 2020.  The tide was out; the Queensferry foreshore was mine.

Suddenly, there they were some 50 metres or so offshore, ‘three shapes’ knee-deep in mud dragging a sled.

​Momentarily I thought of Scott and his party in the Antarctica struggling to get back to the Base Camp, but I came to my senses and waited for reality to arrive.

Fifteen minutes later, the ‘shapes’, dressed in wet suits and a little exhausted, made dry land.​​

It turned out they were from Deakin University and part of a research team studying the feasibility of regenerating seagrass.  My immediate question was why, and this started the conversation.

As the team washed off the mud and rehydrated, for this scientific work is hard going, I learnt that in the last fifty years or so, many hectares of seagrass had disappeared from Western Port.  The aim was that by the end of the three-year research period, the team would have a good understanding of the problem and be able to indicate how and where it could be re-established.

In the few remaining minutes of their brief sojourn, the team told me that their research was just one component of a broader Western Port Environment Research Program being undertaken by Melbourne Water, to restore and rehabilitate key habitats in Western Port.  In this case, Melbourne Water was providing financial support and participating in the supervision and field work activities.

With the sun now high in the sky and the temperature climbing, I said farewell to my new found researchers for they still had more work to do – I promised to check the Melbourne Water website.
 
Later, cooled by a gentle southerly breeze, I thought about my encounter and wondered why seagrass warranted such attention?
 
After several online searches, it was clear that in the past we had abused our seagrass meadows by:  
  • harvesting it for home insulation;
  • traumatising it by “Pollution episodes involving petroleum products and biocides associated with shipping, farming, drain maintenance and drainage from urban areas.”; and
  • killing it off with “pollutants in the form of sediment and nutrients from catchments and eroding coasts.”
These quotes came from the Western Port Seagrass Partnership.  It was established in 2001.  Since then, it has generated scientific data about seagrass and mangroves and undertaken planting programs.  It has met with Deakin University and is assisting in the project.  ​
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​In looking at what Deakin University had in mind, one of their links took me to Gardeners of Our Seas.  Here I came across two ‘video clips‘.  One is called “Seagrass is Awesome”. 

Its ‘seagrass message’ is, and one promoted by The Nature Conservancy, Australia, that “They provide essential ecosystem services as a nursery for young fish. Their dense roots stabilise soil and sediment which protects coasts from erosion and storms. They also serve as a nutrient sink and store atmospheric carbon.”

By now it was getting late but that didn’t matter, for it was evident there was a need to save our seagrass meadows and I’d found a significant quote.

In summarising the project, Dr Craig Sherman, of Deakin University and PhD coordinator for the project had said, “Over many years we have lost significant amounts of seagrass and we need to develop the tools and methods to help rehabilitate and restore these key marine ecosystems.  If we can achieve this, it will enable us to undertake cost-effective and large scale seagrass restoration particularly of the genus know as, zostera muelleri.”

It had turned out to be quite a day but I still had one more task:  to visit the Melbourne Water website. I’m glad I kept my promise.
 
Since my chance meeting, I imagine COVID-19 has curtailed some of the ‘muddy field trips’.  However, I hope to catch up with the team again, for this research is possibly the most important environmental research project currently underway in Western Port.

You can follow the project team’s ‘Zosteration adventures’ on ​Facebook.  
It looks like fun and there’s even an invitation to “Come flower picking with us” when the time comes.​
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3 Comments
Hugh Kirkman15/8/2020 11:00:07 pm
6/2/2022 08:09:41 am

Zostera is the genus name muelleri is
the species name

Reply
Trevor Fothergill18/8/2020 10:36:41 am
6/2/2022 08:12:12 am

How ironic that while Melbourne Water is trying to rehabilitate the Bay environment, Environment Minister Wynne seems hell-bent on fast-tracking AGL’s environment destroying LPG gas terminal at Hastings which reportedly will subject the Bay waters to millions of litres per day of LPG flows at 15 degrees lower than Bay water temperatures.
Obviously the frozen gas needs warming to pump it to Cranbourne but Bay waters will be significantly cooled which will naturally damage and probably destroy parts of the ecosystem; it’s not rocket science.
When Wynne pushes this through will it be goodbye to the fragile colony identified of local seahorses and other vulnerable species? Will it be goodbye to the fish nurseries because of much colder temperatures in the Bay and how will the sea grasses be affected by the new man-made devastation about to be unleashed courtesy of an Environmental Dept approval that will beggar belief if it goes ahead.
Jordan Crugnale’s support for saving Westernport Bay from this madness is needed far more than any futile attempt to buy the Holden Proving Ground. Commonsense says that in this economic environment the Government doesn’t have the money. The future of the Bay is far more important in the big picture. The community needs to get its priorities right.

Reply
Neil Daly
11/2/2022 02:58:38 pm

When this article was first published in the Bass Coast Post – see Environment, it received 15 Likes.

Reply



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