Transcript Science PowerPoint - Ohio Watershed Network

Group members:
Neely
Alison
Tre
Darin
Chris
Jordan
Sante
I tested the level of
nitrates and the pH
level in all three
areas, riffle, run and
pool.
Here’s the data I
collected:
Riffle:
Nitrates: 0 - .25
pH: 3 – 6.5
Run:
Nitrates: 0
pH: 5 – 9
Pool:
Nitrates: 0
pH: 8 – 8.5
By:
Neely
While using the D-ring me and
Neely held in the water and we
used our feet to kick the rocks
and water so that everything that
was under the rocks and it that
area of the water would go into
our net.
Calculations:
I calculated the data as well
Dissolved Oxygen and Phosphates
• I tested the dissolved
oxygen levels and
phosphate levels in
the stream to see
whether it was a
healthy stream or not.
My conclusion is that
in fact it is a healthy
stream. Also there
were no phosphates
measured
Dissolved Oxygen
12
10
8
Chemical
6
Meter
4
2
0
Riffle
Run
Pool
By Chris
Tasks
• Filled water bottle
• Picked up specimen with the fish net
• Recorded data
Duties
• We tested the pool, riffle, and the run. And
we had to turn the rocks to look for the
fishes, and crayfish. We also tested all
types of temperatures in all three areas.
Riffle
• A shallow stretch of a river or string witch
the current is above average stream
velocity.
• It’s often consisted of a rocky bed of
gravel for other small stones.
Pool
• A stretch of a river stream and the water
depth is above average and the velocity is
below average.
• The pool part of the stream provides a
special habitat for organisms that have
trouble feeding or swimming in swifter
parts of the stream or in warmer weather.
Run
• A smooth flowing part of the stream
• The run is the fastest part of the stream
Heterotroph
• is an organism that uses organic carbon
for growth by consuming other organisms.
Autotroph
• is a producer that makes proteins
carbohydrates and fats using
photosynthesis or chemosynthesis
3rd level
consumers
2nd level consumers
1st level consumers
Producers
Raw Materials
Work citied
• http://www.google.com
• http://www.science.jrank.org/pages/3329/h
eterotroph.html
• http://www.stream.com
• http://www.fabiovisentin.com/photos/world/
6_991/un