Smart Buoy Co in Bairnsdale, Victoria | Industrial company

Smart Buoy Co

Locality: Bairnsdale, Victoria

Phone: +61 408 516 235

Address: 21 Bosworth Rd 3875 Bairnsdale, VIC, Australia

Website: http://www.buoys.com.au

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24.01.2022 A very special place

21.01.2022 I have been thinking about some similarities around how water works in two different areas. In particular, the Barmah Choke, and the Murray Mouth. In sp...ite of any amount of evidence that shows the amounts of water the Department of Fairytales and Pixie Droppings talk about does NOT reach the Murray Mouth, this group continue to pretend it does. This is of course the reason for the Mouth needing to be dredged. The similarity though, specifically relates to the process that causes the damage in the Barmah Choke, that has been occuring from the entitlement flows of water for Irrigation. An interesting point about hydrology is that water velocity in the channel of a river increases with depth - up to a point. But as soon as the water breaches this channel of a river and spreads out onto the flood plain, water velocity falls dramatically, including within the channel. Thus huge amounts of water that enter the flood plain have less erosive capacity, as far as the channel goes, than a flow that stay within the channel. What this means is that water that flows on the top of a surface will slow down and find it much harder to scour as will the in channel water because of this slowing effect, but a flow that stays within the channel will be going as fast as is possible and will therefore scour the banks The important thing to remember is that the scouring effect is not caused by the volume of water, but the speed of it. The AMOUNT of scouring or material removed is due to the amount of time of the scouring flow. Now how this applies to the Murray mouth also follows these same rules or laws of physics. But firstly, waves at sea, over many kilometres pick up power and crash onto the coastline roiling up sand in the process. This water is pushed into the Coorong by wind and to a much lesser extent, by tide carrying this suspended sand with it. As it enters the Coorong it has to either turn left or right, a full 90 degrees and in the process it loses much of its power allowing the sand to drop out of suspension. Further water flowing across this newly deposited sand serves to "jiggle" these sand grains and settle them down (compaction). This is the process that blocks the mouth of any sand Estuary. In the reverse situation, where either tide or wind pushes this water back out, there are five main drivers of the mechanics of what happens. Firstly, this water cannot pick up the same power it does at sea so has a reduced carrying capacity. Secondly, as the sand is underwater, the exiting water has to run OVER the top of the sand, slowing the in channel flow and reducing scouring. Thirdly, flow, before it exits the Coorong has to again turn 90 degrees, to flow to sea, thus losing power and reducing its carrying capacity. Fourthly, due to the sand having been compacted, unlike outside the mouth where it is already in suspension, there is only the capacity to scour the edge of the channel. Fifthly, given that there is no MORE water that can flow OUT of the Coorong than what flowed in, it is clear to see there is a deficit in the water's ability to move sand out. In simple terms more sand comes in than goes out. For the Mouth to NOT have closed, another form of scouring needed to happen, and this was in the form of the River Murray flows. In fact Geo Morphological studies show the mouth has not closed for 8,000 years, or in other words, since it's formation. There are various Fairytales put up around how tide can keep the mouth open. As I have shown, this unfortunately is ALL it is. A Fairytale.

17.01.2022 CATCH OF THE YEAR. No wait CATCH (and release) OF THE CENTURY. While this little grey fish may seem insignificant to some, it is in fact a sensational discov...ery in the Glenelg River in south west Victoria near Dartmoor today. Two years ago, an Australian grayling (Prototroctes maraena) was caught during fish monitoring activities the first verified report of this nationally threatened species in the Glenelg River in 122 years. Today, they have done it again. And we’re stoked! Scientists from Arthur Rylah Institute for Environmental Science (ARI) found the grayling while undertaking fish monitoring for the Native Fish Report Card program. The adult fish was safely returned to the river. Once abundant throughout the coastal rivers of south-eastern Australia, Australian grayling populations have declined due to altered river flows, water extraction and barriers to fish movement such as weirs. Grayling need certain types of flows at different times of the year to trigger and enable breeding migrations between freshwater and the ocean. Adult fish need to move upstream to spawn, while juveniles require suitable flows to move downstream into nursery areas in estuaries and the ocean. ARI research in Victorian coastal rivers shows that Australian grayling benefit from flow pulses or ‘freshes’ to stimulate spawning migrations. That’s where we come in managing delivery of water for the environment to the regulated Glenelg River. Returning flows to the Glenelg at the right rate, time and place helps to keep river habitats connected for fish that need to move about. Estuary perch and black bream also rely on flow cues for spawning and recruitment. An environmental ‘fresh’ is currently moving through the upper Glenelg River to keep it healthy and fish moving freely. The Native Fish Report Card program - supported by Department of Environment, Land, Water and Planning and Victorian Fisheries Authority - monitors fish populations annually. Photos courtesy of Arthur Rylah Institute for Environmental Science (ARI). DELWP BarwonSouthWest #ARIScience Victorian Environmental Water Holder Victorian Fisheries Authority Victorian Fisheries Authority VRFish Southwest victoria fishing reports Dartmoor Angling CLUB OzFish Unlimited OzFish SW Victoria Chapter Department of Environment, Land, Water and Planning ABC South West VIC ABC News Hamilton Spectator Portland Observer & Guardian Mixx889 Warrnambool Standard The Age Herald Sun

13.01.2022 Throwing big weights today down at the Paynesville slipway, Gippsland Ports. The first of 22 new piles to kick off the reconstruction of this East Gippsland heritage listed icon. 8m embedment.

11.01.2022 Citadel Island & the family who lived on a rock.

06.01.2022 Port Campbell Pier provided some fantastic wildlife to see yesterday. 2 Southern Eagle Rays, heaps of fish, a small crayfish, heaps of Abalone and plant life too.