Home | Site Map | Contact Us
 

RESULTS

Experimental Site 3

Site: Five Mile Brook Constitution Street and Adam Road

 

Water Test

Results

 June 2005

September 2006

April 2007

Constit. St

Constit. St

Constit. St

Adam Rd

Nitrate mg/L

-

-

2.33

1.496

Phosphate mg/L

-

-

0.28

0.720

Ammonia mg/L

-

-

0.04

0.108

pH

-

-

7.35

7.13

Salinity ppk

-

-

0.28

0.64

Conductivity ms/cm 3

-

-

0.52

1.10

Turbidity

-

-

10

<10

 

Macro Invertebrate Sampling in Water Sites in Bunbury City

Water Condition Index

Water Body Quality Rating

19 or less

Poor

20 - 34

Fair

35 - 49

Good

50 or more

Excellent

 

Site: Five Mile Brook Constitution Street

Species sampled

Sensitivity Rating

Constitution Street

June 2005

Adam Rd

September 2006

Adam Rd

April 2007

Dragonfly larvae

6

-

6

Water mites

-

5

-

Beetle larvae

-

4

-

Beetle coleoptera

-

-

3

Bugs (water boatmen)

3

-

3

Daphnia/ water fleas

3

3

3

Cyclops

3

-

-

Freshwater shrimp

-

-

-

Flatworm

-

-

3

Ostracods

3

3

3

Amphipods

-

3

3

Water Snails

3

3

3

Fly larvae

-

-

2

Midgie larvae

1

1

1

Aquatic earthworms

1

-

-

Macroinvertebrate

Water condition

20 Fair

22 Fair

30 Fair

 

Vertebrates

Gambusia

Gambusia

Gambusia

Ducks

Ducks

-

-

Long necked turtle

-

 

1
Clearing out rubbish and trimming grass at Five Mile Brook at Constitution Street.

 

Water Index Rating for Test Sites

Site: Five Mile Brook

Date

Water Index Rating

Star Rating Guide

June 2005

× × × Gambusia

Wetland is in reasonable condition now. Keep monitoring it

March 2006

 

× × × Gambusia

 

Wetland is in reasonable condition now. Keep monitoring it

April 2007

 

× × × Gambusia

 

Wetland is in reasonable condition now. Keep monitoring it

1 1
Shopping trolleys, bikes, blinds and car engines were some of the items removed.

Clearing out rubbish from Five Mile Brook near Adam Road.

 

1 1
The area alongside the hockey stadium was cleaned out by students.
Litter accumulates along the length of Five Mile Brook, much from drains emptying into the creek.

Conclusion

The main concern with Five Mile Brook is the amount of rubbish finding its way into the water. There are many drains emptying storm water into the creek. This is the source of litter such as plastic bottles and food wrappers. However there is also a large proportion of household refuse which has been discarded into the creek. Hopefully our Habitat signs will inform people that the creek is a valued ecosystem. The City Council has also made a great contribution by cleaning out sections and revegetating banks near Adam Road and Hay Park .

In spite of the litter, our water sampling has indicated the presence of sensitive macro invertebrates, but their numbers aren’t high. Tadpoles and long necked turtles are still seen swimming in the creek. The high number of gambusia remain a concern. Our regular trapping collects many but they are proliferic breeders and can tolerate poor water conditions and higher salinity than the Western Pygmy Perch and Western Minnow.

The aquatic plants are plentiful along the creek and they provide a good habitat for the development of juvenile fish.

We have released Western Pygmy Perch and Western Minnow into Five Mile Brook in 2006 and 2007. Because of its flow and length we do not expect to recapture any in the near future but will continue to release the fish and sample in summer when the water flow slows.

1
Sign at Constitution Street of Five Mile Brook

1
Sign at Adam Road of Five Mile Brook

 

Top

asd