The Gossman Mentorship
(about us)

      

Ichthyology

Ichthyology

Go straight to graphs
Go straight to photos

The context of the Ichthyology team research is to reintroduce the native species of brown trout into Buck Creek on the Gossman Farm in Zwingle, Iowa. Before planning to attempt this, the group has started collecting data for the following criteria: pH, phosphates, turbidity, ammonia, nitrates, hardness, temperature, and dissolved oxygen. They have collected this data from eight different sites and compared it to the conditions that brown trout need in order to survive.  

Materials:

Jars used by the Ichthyology group to store water tests Two spectrophotometers, a pH meter, and several jars used by the ichthyology 
group to test the stream content

Jars used by the Ichthyology group
 to store water samples

 

A turbidity meter, dissolved oxygen meter, vortexer and
several sample jars used by the ichthyology
group to test the stream

 

  • 3 gallons distilled water

  • 250mL jars

  • 100mL beakers

  • 250mL volumetric flasks

  • Centrifuge tubes 15mL x 100mL

  • Micropipettes 5mL x 100mL

  • 5mL syringes

  • 15mL test tubes

  • Goggles

  • Rubber gloves

  • Acid rain and quality test kit

  • Alkalinity test kit

  • Ammonia test kit

  • Hardness kit

  • Nitrate test kit

  • Nitrite test kit

  • Magnesium test kit

  • Ozone test kit

  • Phosphate test kit

  • Dissolved oxygen test kit

  • Dissolved Oxygen Meter 53

  • Hanna Portable Dissolved Oxygen Meter with Probe 5/A

  • Ammonia analyzer

  • Vortex mixer

  • Spectrophometer

  • Turbidimeter

  • Portable ph meter

  • Portable digital thermometer

  • pH buffers

  • Small ph Meter (2)

  • Cuvettes

  • BnL spec 20

  • Centrifuge 2 useable ports

  • Iron

  • Hydrogen sulfide

 

Alkalinity Test Kit
(courtesy of
http://www.aquaspex.com.au
/products/microtest/alkalinity.html)
Alkaline Test Kit
Centrifuge Tubes Centrifuge Tubes
(courtesy of http://www.asi-supplies.com/CentrifugeTubes.htm)
Dissolved Oxygen Meter
(courtesy of
http://www.water-quality-sensors.com/ysi550.htm)
Dissolved Oxygen Meter
Spectrophometer Spectrophotometer
(courtesy of
http://www.biology.clc.uc.edu/fankhauser
/Labs/Microbiology/Growth_Curve/Spectrophotometer.htm)
Turbidimeter
(courtesy of
http://www.topac.com/
turbidimeter_microT100.html)
Turbidimeter
Vortex Mixer Vortex Mixer (courtesy of http://www.rosesci.com/Products/
Mixers%20and%20Shakers/Vortex%20Mixer.htm)

Brown Trout Necessary Conditions 

Variable  Parameter
Temperature (C) 0-24
pH 6.5-9.0
Dissolved oxygen 60-80% oxygen saturation
Hardness 5-15 mg/L
Nitrate 0-2 mg/L
Turbidity 0.1-12 NTUs
Ammonia <.1 ppm
Phosphate 0-0.2 mg/L
Dissolved solids <30 ppm

Top

   
 
Various graphs created by the Ichthyology group depicting the conditions of the stream and ponds on the Gossman Farm

Click on image for larger view

Top

Ichthyology Photographs
Click on image for larger view

Week of October 15-17

  A small river on the farm

A small stream on the farm

 


2004 Ichthyology photographs

Ichthyology member testing the water pH A segment of the stream on the property A small waterfall along the stream
Ichthyology member testing the water pH

 

One of the ponds on the property

 

A small waterfall along the stream

 

Ichthyology members collect water 
            samples Ichthyology member performs water tests
Ichthyology members collect
water samples

 

Ichthyology member performs
water tests

 

Ichthyology member collects water sample A segment of the stream reflects trees 
            along its bank Ichthyology members perform water tests
Ichthyology member collects water sample

 

Another pond reflects trees along its bank

 

Ichthyology members perform water tests

 

Top

 
(c)  Jessica Liu and Yifan Sun

Ornithology

Botany/Forestry

Geology

Miscellaneous

Contact Info

Back to
treefarmproducts.com