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TWHS POND TOUR

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Jason James

on 11 January 2010

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Transcript of TWHS POND TOUR

TWHS
Bear Branch Creek
and Pond
Virtual Tour Largemouth Bass

Crappie
Salamander Crayfish Yellow Bullhead Catfish Fish in the Creek/Pond Mike Parham
&
Joseph Stankowski

Plants In
TWHS
Creek & Pond Micropterus salmoides Siren intermdia Pomoxis annularis Giant Water Bug Plants in the Creek/Pond Zones in the Creek Zones of the Pond Creek Data Creek Velocities Field Day 6 Creek Velocities Field Day 8 Depth in Our Section of the Creek Naid Lemna Minor Phragmites australis Profundal Zone The profundal zone is the deepest part of the pond. It is where
bottom feeders live. The profundal zone recieves the least light. Limnetic Zone This is the Limnetic zone at the beginning of the year. It is normally covered
with water and makes up most of the pond. Littoral Zone The Littoral zone is on the edge of the pond and extends to just past the bank. It s filled with all kinds of aquatic Plants. Lethocerus americanus Run The run is the second fastest part of the creek, next to the riffle zone Riffle The riffle is the fastest flowing part of the creek, but is also the shallowest.
It has a bottom of clay and gravel. Sand Bar A sand bar is a buildup of sand on the bank of the creek. Erosional Zone/Pool/Depositional Zone You can see on the far side of this s curve the erosional zone where the fast moving waters erode away the side and bottom of the creek. The drop off the side is where the pool would be, were the water not so low. And opposite the erosional zone is the depositional zone. The depositional zone collects sediments and builds up, because the water is the slowest moving on the inside of the s curve. The Creek Over Time Ft Across 0 Foot Section 5 Foot Section 10 Foot Section Velocities in our Creek Section Field Day 13 Avg. Velocity=

1.8 f/s Field Day 14 Avg. Velocity=

1.07 f/s Pollution Testing Fecal Coloform:
Negative The Creek did not contain fecal coloform,
which would be indicative of raw sewage
in the creek. Dissolved Oxygen:
2ppm The DO levels in the creek were average Nitrates:
0ppm Nitrates would mean fertilizers were leaking
into the creek, however it tested negative. PH:
8 A Ph of 8 is a little bit high, compared
to normal water being 7, but it is still
healthy. Phosphates:
1.5ppm The Phosphate levels were normal Turbidity:
20jtu The pond had some turbidity, but not so much that the water was completeley dark. Alkalinity:
80 Ammonia:
0ppm Ammonia is natural to find in the creek,
as it is a by product of fish waste. But the
levels were to low to measure. Chloride:
Negative Chlorides in the water would be bad, it
might indicate dumping from a wastewater treatment
plant. Chlorine:
0ppm A high chlorine amount could
mean drainage from pools is entering
the creek Iron:
0ppm Iron was not found in the
creek. Copper:
1.5ppm A small amount of copper was
found in the creek. Chromium:
0ppm No chromium in the creek. Water Hardness:
40 The Water was relativeley hard. Fish Count The class caught about 140 fish this year. This would
seem, along with our pollution testing, to indicate a
good water quality in bear branch creek. As a group in the end we caught 14 fish. The beginning of the year Pond Over Time The Beginning of the Year Bibliography
www.tpwd.state.tx.us
wikipedia.org

Common Reed Alligator Gar Atractosteus spatula Shad Alosa sapidissima Giant Water Bug Lethocerus americanus Amerius natalis Pomoxis annularis Cambarus diogenes Pondweed Potamogeton crispus Alligatorweed Alternanthera philoxeroides Water Scorpion Centruoides vittatus Duckweed Lemna Gibba The Runs at the beginning of the year were
so low that they didnt even reach our ankles.
At this points, the creek wasnt supporting
much life except for that that lived in the sand. A few weeks later, the creek was a bit higher,
at this point we were catching mosquito fish
and some larger fish as well, including largemouth
bass, shad, and sunfish. This is what the limnetic/littoral zone of the pond looked like earlier.
It was completeley dry. The water normally would have been about
a foot or two deep at this point. Only the profundal zone remains
in the pond in this picture. These are the sawreeds completeley exposed at the beginning
of the year. Notice how they can survive without water around
them at all times. This is characteristic of littoral zone plants. Ghost Shrimp Palaemonetes kadakensis Most of the Fish caught were either
Intolerant or Moderatley tolerant,
indicating good water quality.
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