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Lake Ranfurly gets dumped on!

Dumping household waste in a public place is irresponsible!

Dumping household waste in a public place is irresponsible!

Lake Ranfurly as we know is a wetland, but when we got there the sand was orange and there were only a few birds there. The last activity for our learning was about rubbish. Things such as TV’s,carpets,doors and green waste.  Our mentor, Terry, said that ‘the people who dump  rubbish in Lake Ranfurly or other places that are seen then just report this to the Council or to the police’. So we have to throw our waste in the bins properly and we sometimes do these things:reduce, reuse and recycle, these three (3)are very important because it can save the environment and other species.

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Caring for rivers and wetlands

Facts to know:

It is important to keep the rivers and wetlands healthy so that the animal habitats are kept healthy.

If there is too much salt in the water, fish can die.

A net can be used to remove the rubbish in a wetland.

Check on the turbdity, the temperature, pH level, – acid, alkaline, neutral.

If the water is in the 7 -9 range it is healthy enough to drink!

If the nutrients are too high algae can bloom out of control. Algae is similar to putting a blanket over your pool, stopping the oxygen and light from entering it. In the rivers and wetlands an algal bloom can stop plants from growing.

Sunlight is needed to kill all the bacteria.

Things that are not good for rivers and wetlands!

  • phosphate and other fertilisers
  • detergent
  • algae kills all good plants
  • it is good to have lots of different water bugs in the river mozzies, dragon flies and shrimp.
  • some water bugs eat each other – omnivores. [An omnivore is a kind of animal that eats either other animals or plants. Some omnivores will hunt and eat their food, like carnivores  carnivores, eating herbivores and other omnivores. Then there are detrivores.

A detritivore feeds on plant and animal remains and other dead matter  called detritus. They recycle decomposing material and return it to the food  chain. An earthworm is  a good example of a detrivore.   

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Logos for Mildura West Incorporated

Jamaya receiving a certificate from Mr. Searle for the logo competition for Mildura West Inc

Jamaya receiving a certificate from Mr. Searle for the logo competition for Mildura West Inc

Mr. Searle presenting a certificate to Sarah for her entry in the Mildura West Inc logo competition.

Mr. Searle presenting a certificate ot Sarah for her entry in the Mildura West Inc logo competition.

Agriculture, Art, Environment - Murray River and Recreation

Agriculture, Art, Environment – Murray River and Recreation

Symbolic design by Lachlan, Will, Jack and Alex

Symbolic design by Lachlan, Will, Jack and Alex

The symbolism behind the designs for the Mildura West Inc can be found on this link. http://www.facebook.com/pages/Mildura-West-Inc/180017898698597?ref=ts&fref=ts

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What is a pH SCALE?

The pH scale is a measure of how acidic or basic a chemical substance istoddlers junions.

A pH of 7 is netural and this is ideal for all creatures.

  • A pH less than 7 is acidic
  • A pH greater than 7 is basic or alkaline
Strength strong acids weak acids neutral weak bases strong bases
pH 0-2 3-6 7 8-10 11-14
Examples Car acid batteries Lemon juice Water Toothpaste Oven cleaner

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European Carp a real problem!

European Carp Must Get Out! by Thomas

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What happened to the time…

What happened to the time the water was so clear?
When you could see the bottom and everything near!
In our day people have less pride,
The amount of things they pollute is a big surprise,
So take the lead and show you believe,
That people can change and rise from their ways.

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Water Pollution

The river is in trouble

We must help it on the double!

It has to put up with biological, chemical and physical pollutants!

Spraying gardens with fertiliser

Causes blue green algae when it enters the river!

Dog poop on the ground; ending up in the river

Is another cause of blue green algae!

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Blue Green Algae

Blue green algae

I hurt your brain.

I drive you insane.

Who am I?

I irritate the eye

I am blue green algae of course

What is my source?

Dog poop of course!

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Through the Eyes of a Carp

I stir up the water
I am a bother
I hurt native fish
And my work is accomplished!

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Pollution Shame!

As the light fades
Your secret shame appears.
You know what you’ve done
So own up! We know that you did it.

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Carp in Australia

Carp Have Many Features!

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It’s a cool environment but you still choose to abandon it!

Leah raises many issues that we all need to do something about!

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Questions Nathan

  • What would happen if you leave the fish on the bank?

    Carp dumped at Lock Island. Not a pleasant smell!

  • What would happen if the carp were put back in the water?
  • Are carp stopping the breeding of native fish?
  • How long does it take for a carp to die on the bank?
  • What is  the best river to fish in that doesn’t have much carp in it rubber boats for sale?
  • What are effective ways to recycle carp?
  • Why are carp bad for the river?

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Carp Threat

Why don’t we poison carp or kill them with a virus?A virus is not an option because it may affect native fish and impact on Australia’s ‘clean-green’ food production status. Carp can be poisoned but the widespread distribution of Carp in Australia limits the use of poison to special cases, such as enclosed water bodies and lakes.

How will carp be controlled?Controlling Carp will be a combination of improving river management, using chemicals and manipulation. Efforts to improve river management are already in place in many areas. New procedures are being developed for improving water allocations to balance the needs of human consumption with those of the environment, including native fish. Combined with other integrated management techniques, they can achieve a great deal in managing and eventually controlling Carp.

What can I do to help?Do not return Carp to waterways or transport them live once caught.

What impacts do carp have on the river?
When in large numbers, carp can increase the turbidity (browness) of the water through their bottom dwelling feeding. They increase erosion of stream banks, channels and levees by undermining them, causing them to slump. They can also infect native fish with the anchor worm that can prevent spawning and can be fatal for large adult Murray Cod and golden perch.

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European Carp

.How do they harm the Murray River?

.How did they get there?

.Do they harm the breeding of other fish?

.Do they cause things like Blue-Green algae?

.What are the solutions?

.Why can’t you just poison them?

.What are the outcomes or the ramifications of having carp in the river?

.How do carp effect people?