Jānis Burvis Natalia Biała Is water for human use or for respect?

Jānis BurvisJānis Burvis

Natalia BiaNatalia Białłaa

Is water for human Is water for human useuse or for or for respectrespect??

• Rivers are a water reservoir over the earth surface.

• The water in the river is not stable but it flows usually from mountains, lakes or other sources to a sea.

• In streams and rivers we can find a lot of different species of plants, algae and animals.

• The aim of our project is to find out if people and animals living near the rivers have any influence on the river water contents and quality.

• We would like to examine composition of water and animals that live in the rivers and want to compare the results from rivers to Lake Erken.

Map of chosen sites

If the water flows from lake to the sea through rivers located in areas where people and animals live and where infrastructure is developed, then the abiotic factors (temperature, pH and total phosphorus) in river water are higher than the water in the Lake Erken.

To examine how big influence our way of living has on the environment in streams.

As the surrounding areas have a big effect on water quality in streams, the ASPT-index will decrease at each site, travelling from the outlet of Lake Erken towards the Baltic Sea.

To check difference between the quality in lake water system (source) and rivers which flow from the lake.

Due to the fact that water in pools is almost still the ASPT index and water quality will be lower than it is in flowing water – riffles.

To check if pools can somehow keep good quality

ASPT index in spots

4.7

3.6

4.25

7.5

4

2.5

4.8 4.6

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

Site 1Stream

Site 1Pool

Site 2Stream

Site 2Pool

Site 3Stream

Site 3Pool

Site 4Pool

Site 5Stream

Spot

AS

PT

va

lue

Diagram 1. ASPT values in rivers

The ASPT – values are rather higher in riffles than in pools. The highest ASPT value was noticed in site 2 and it was 7,5. The lowest noticed value was 2,5 in site 3.

pH values in different spots

8.8

9

8.58.4

8.5 8.5 8.5

9.2

8

8.2

8.4

8.6

8.8

9

9.2

9.4

Site 1Stream

Site 1 Pool Site 2Stream


Site 3 Pool Site 4 Pool Site 5Stream

Spot

pH

va

lue

Total phosphorus in rivers

23 24

61

4539 39

56

34

0

10

20

30

40

50

60

70

Site 1Stream



Site 3 Pool Site 4 Pool Site 5Stream

Spot

To

tal

Ph

osp

ho

rus

Diagram 2. pH values in different spots

Diagram 3. Total phosphorus results in rivers

The pH values varied from 8,4 to 9,2. The highest values were measured in the fifth site where the measurement was 9,2. The lowest value (8,4) was noticed in site two (pool). The average pH value was 8,7.

The lowest value of total phosphorus was noticed in site 1 and it was 23-24. The highest results were noticed in site 4 (56) and site 2 (64).

Compare of parameters between Lake Erken and streams

15.4

8.7

27.5

16.9

8.7

40.1

0

5

10

15

20

25

30

35

40

45

Temperature pH Total Phosphorus

Parameter

Val

ue Lake Erken

Streams

If the water flows from lake to the sea through rivers located in areas where people and animals live and where infrastructure is developed, then the abiotic factors (temperature, pH, oxygen condition and total phosphorus) in river water are higher than the water in the Lake Erken.

Diagram 4. Compare of parameters between Lake Erken and streams

• The most common surrounding to investigated rivers was car roads or highways; in addition in neighbourhood of a few of them we found beach, farm and household.

• Water was alkaline. pH value was same in Lake Erken and average value from rivers.

• Temperature was getting higher every day.

• Streams were more nutrient rich than Lake Erken

Compare of parameters between Lake Erken and streams

15.4

8.7

27.5

16.9

8.7

40.1

0

5

10

15

20

25

30

35

40

45

Temperature pH Total Phosphorus

Parameter

Val

ue Lake Erken

Streams

If the water flows from lake to the sea through rivers located in areas where people and animals live and where infrastructure is developed, then the abiotic factors (temperature, pH, oxygen condition and total phosphorus) in river water are higher than the water in the Lake Erken.

Diagram 4. Compare of parameters between Lake Erken and streams

True and false

Compare of ASPT values between Lake Erken and streams

4.74.1

5.9

3.3

4.8 4.6

0

1

2

3

4

5

6

7

Lake Erken Site 1 Site 2 Site 3 Site 4 Site 5

Spot

Val

ue


Diagram 5. Compare of ASPT values between Lake Erken and streams

• Water quality in rivers are lover than in Lake Erken.

• In some rivers water quality is higher than in Lake Erken.

• One reason for this is that river faster changes its water.

Compare of ASPT values between Lake Erken and streams

4.74.1

5.9

3.3

4.8 4.6

0

1

2

3

4

5

6

7

Lake Erken Site 1 Site 2 Site 3 Site 4 Site 5

Spot

Val

ue


Diagram 5. Compare of ASPT values between Lake Erken and streams

True

Compare of results between pools and riffles

4.4

8.8

39.3

4.6

8.6

17

41

16.9

0

5

10

15

20

25

30

35

40

45

ASPT pH Temperature Total phosporus

Parameter

Va

lue Riffles

Pools


Diagram 6. Compare of results between riffles and pools

• Average ASPT value in pools was higher than in riffles.

• Water in pools is not exchanged so often as it is in riffles

• This project should be continued and more factors should be examined to see what makes big difference between riffles and pools.

Compare of results between pools and riffles

4.4

8.8

39.3

4.6

8.6

17

41

16.9

0

5

10

15

20

25

30

35

40

45

ASPT pH Temperature Total phosporus

Parameter

Va

lue Riffles

Pools


Diagram 6. Compare of results between riffles and pools

FALSE

Is water for human Is water for human useuse or for or for respectrespect??

= 4 PROFITIAL USE?

NO!!! 4 RESPECTFUL

USE!!! =

Jānis Burvis Natalia Biała Is water for human use or for respect?

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