European Carp

What effects do carp have on water in water tanks?

By a fabulous team of scientists from Quirindi Public

How we did our research

Over the past few months we have been gathering information about carp, silver perch and a controlled tank of water. To measure the water quality we regularly gathered information from the three different tanks. Each tank had 1 litre and 700ml of water in it. Over the time of testing two fish died ,1 carp and 1 silver perch .Our groups made sure that each tank had the exact same type of water, some rain water , town water and some out of the tank the fish came out of. We have measured the Ph, Turbidity and micro Siemens, this information we charted then graphed.

What is PH?• PH ranges from 0 to 14.• Pure natural water has a pH of 7.0• Water can become either acid or alkaline.• A pH over 7.0 is alkaline.• Ph under 7.0 is acid.• Fish will die if the pH is under 4.8 • the pH is 5.5 it has iron in it. • In the day pH can be 9.5 if it is in the night it will be 7.3. • In deep water Ph is lower the shallow water.• Most fish can tolerate pH of 5.0 to 9.0.

Ph Scale

Water Quality Ph Levels

What is Turbidity?• www.En.wikipedia.org/wiki/turbidity• • Turbidity is the haziness of water caused by particles that are invisible to the naked eye.

• • www.h2ou.com/h2wtrqual.htmIf • If suspended particles block out light, photosynthesis-and the production of oxygen for fish and

aquatic life.• • Ga.water.usgs.gov/edu/dictionary.html • • Turbidity waters become warmer as suspended particles absorb heat from sunlight , causing oxygen

levels to fall. Warm water holds less oxygen than cooler water)• Turbidity-the amount of solid particles that are suspended in water and that cause light rays shinning

through the water to scatter . Turbidity makes the water cloudy or even opaque in extreme cases.• •

Water Quality Turbidity

8-Feb

9-Feb

10-Feb

11-Feb

12-Feb

13-Feb

14-Feb

15-Feb

16-Feb

17-Feb

18-Feb

19-Feb

20-Feb

21-Feb

22-Feb

23-Feb

24-Feb

25-Feb

26-Feb

27-Feb

28-Feb

29-Feb

1-Mar

0

5

10

15

20

25

30

35

40

carpperchwaterSeries4

What are Micro SiemensMicro seimens are also referred to as salinity or conductivity

Salinity is the salt concentration in water.

Conductivity is the degree to which a material conducts electric or heat.

About micro Siemens

The fish added to the micro siemens through urination and pooing.

To measure the micro seimens we used an EC meter also known as the electrical conductivity meter

Micro Siemens

•

7-Feb

8-Feb

9-Feb10-Fe

b11-Fe

b12-Fe

b13-Fe

b14-Fe

b15-Fe

b16-Fe

b17-Fe

b18-Fe

b19-Fe

b20-Fe

b21-Fe

b22-Fe

b23-Fe

b24-Fe

b25-Fe

b26-Fe

b27-Fe

b28-Fe

b0

200

400

600

800

1000

1200

1400

1600

1800

CARPPERCHWATER

Quirindi Science GroupSarah Stimson

Sarah WiddisStephen McNamara

Sophie Hamilton-Smith

Hannah Smith

Hannah Brabrook

Tayla AuldBen Grant

Alek Hall

Alexander Roseby

Jaxon Nean

Nicholas Hamblim

Lachlan Bradfield

Jordie Thompson

Isaac Byrne

Grace CudmoreHudson Shaw

Hayden Beaman

Tyrone JohnsonLaura Frear

Josphine Saunders

Lucy Sadler

Madeline Jones

Jock Thompson

Riley Medway

Barney Hazlewood

Layne McKinnon Bailey Reid

Isla O’Reilly

Baily McCrea

Ryan Potter And a big thanks to miss wormal for making this happen