The students took measurements of water temperature from a factory river out to the sea using a robot. The highest temperature measured in the river was 25°C, while the air temperature was only 12°C. When remeasuring, they found the same results, confirming the measurements. Further measurements in the open sea found some areas of water as hot as 50-60°C, which fishermen explained was from underground hot springs. Analysis showed the ecosystem has adapted to the warmer temperatures in some areas, while fish near the river indicate no pollution problem.

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4. We started taking measurements by starting as closer as
we could to the factory and all the way out of the artificial
river until our robot reached the sea.
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6. The most exciting of all was that the
factory, after they noticed our
presence there and with the helping
hand of Media, tried to minimize
the problem. They placed pieces of
polystyrene in order to give water
time to cool.
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7. The highest temperature of the water was 25O
C while the temperature of the
atmoshpere was 12O
C.
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Waterfall

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The start of the river

9. We took measurements for a second time and the results were the same. So
we didn’t have any doupt for the measurements.
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Waterfall

10. Then the research continued in the open sea with the boat of the Aegean
University and the assist of the Pr. Zervakis and Pr. Krasakopoulou.
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11. First of all with special sensors-detectors we found the flow of the water. That
would help us drive the Hydrobot.
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12. We also collected water with suitable equipment.
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13. Futhermore we collected Posidonia and other plants and rocks to help us
understand the biodiversity of the area.
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14. Finally our robot got to work and we started taking more measurements.
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15. In the examination of the results helped Pr. Zervakis, who was very interested
about the quality of water in the area.
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16. When we drew the graph of the results we noticed that in some places
the temperature of the water was very high.
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55
60
50
0
C
27/06/2015

17. The graph of the second measurements was also the same. We had
also 3 to 4 places that the temperature was high.
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600
550
500
27/06/2015

18. After a discuss we had with the
fishermen there they told us
that it was known that the
water there was warm. We
asked why and the just point us
the coast. They explained us
that there are 2 gazers in the
water coming from the old Hot
Springs (we found 3-4). In the
photo you can see the ruins of
the thermal spings.
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19. Conclusions:
•The “hot” water from the factory ( 25O
C) doesn’t seem to
effect the ecosystem when in 50m from the coast the
water’s temperature was 50-60O
C.
•The fact that there were fish very short to the mouth of
the river indicates that there is no pollution problem.
•Water also cools because of the the currents that there
are too many in that area.
•We notice that the water was very clear, more than
normal, so we guess that the nutrients and the metals
were less or even there aren’t any of them.
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20. • The high temperature of the water in the sea shows
that the ecosystem adapted to environment
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22. 2nd
action. This year we continue our project with our
upgrated Hydrobot. With bigger engines, a digital camera
and more experience, our little machine is ready for more!
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Our first expedition to the port.

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3rd
action.Οur research extended with another creation
that we build on our own. We build a stereoscope, which
can be used only if you have a Smartphone or a tablet. The
aim of that build was to help us detect some micro-
organisms that can almost be seen with naked eye.

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Stomata
from
leaves
Stamen of a daisy
Paramecium
Cancer cells from lung
The edge of a tong in
a flower
An insect in a flower

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29. Marine Life of the Mediterranean
(and adjacent seas)
Lesvos Island (Greece)
June 19-26, 2016