Mrs. Renz's 4th Grade Class  Redmond, Oregon

 

click to enlarge

Our class is lucky to be part of the Kokanee Karnival program, sponsored by the Central Oregon Flyfishers, Sunriver Anglers, Oregon Department of Fish and Wildlife, and many other sponsors.  Part of our studies include raising fish in the classroom.  We are raising 400 rainbow trout for eventual release into our local Fireman's Pond.  Each day we check the water temperature and weekly we check the water's pH.  We remove the dead eggs and fry needed.  Below is a summary of our fish incubation project.    See our projects from the past.
WEEK 1

Day

Date

Water 

Temp.

(degrees F)

Temperature 

Units 

Earned

Running 

Total 

T.U.'s

Mortality 

of Eggs

or Fry

Comments

Photos

(Click the camera)

Thurs 10/28 48 16 325   400 Rainbow Trout eggs were delivered today. The eggs have eyes. The eggs look healthy. They came from Oak Springs Hatchery. 
Fri 10/29 48 16 341 8 Eggs 8 eggs died. They looked milky-white when they died. 392 are still alive.
Sat 10/30 48 16 357      
Sun 10/31 48 16 373      
WEEK 2

Day

Date

Water 

Temp.

(degrees F)

Temperature 

Units 

Earned

Running 

Total 

T.U.'s

Mortality 

of Eggs (E)

or Fry (F)

Comments

Photos

(Click the camera)

Mon 11/1 48 16 389      
Tues 11/2 48 16 405 3 Eggs 389 are still alive.  
Wed 11/3 48 16 421      
Thurs 11/4 48 16 437      
Fri 11/5 48 16 453 1 Egg 388 are still alive. We think we see movement in the eggs today.  
Sat 11/6 48 16 469      
Sun 11/7 48 16 485      
WEEK 3

Day

Date

Water 

Temp.

(degrees F)

Temperature 

Units 

Earned

Running 

Total 

T.U.'s

Mortality 

of Eggs (E)

or Fry (F)

Comments

Photos

(Click the camera)

Mon 11/8 48 16 501      
Tues 11/9 48 16 517 1 E 1 egg hatched today!
Wed 11/10 48 16 533      
Thurs 11/11 48 16 549      
Fri 11/12 48 16 565      
Sat 11/13 48 16 581      
Sun 11/14 48 16 597      
WEEK 4

Day

Date

Water 

Temp.

(degrees F)

Temperature 

Units 

Earned

Running 

Total 

T.U.'s

Mortality 

of Eggs (E)

or Fry (F)

Comments

Photos

(Click the camera)

Mon 11/15 48 16 613 2 E The eggs are mostly all hatched today!  The water was really foamy this morning.
Tues 11/16 48 16 629      
Wed 11/17 48 16 645 7 E    
Thurs 11/18 48 16 661      
Fri 11/19 46 14 675   Our chiller got turned down (not on purpose).  
Sat 11/20 46 14 689      
Sun 11/21 46 14 703      
WEEK 5

Day

Date

Water 

Temp.

(degrees F)

Temperature 

Units 

Earned

Running 

Total 

T.U.'s

Mortality 

of Eggs (E)

or Fry (F)

Comments

Photos

(Click the camera)

Mon 11/22 46 14 717   We  were gone from school all week on Thanksgiving break  
Tues 11/23 46 14 731   Thanksgiving break  
Wed 11/24 46 14 745   Thanksgiving break  
Thurs 11/25 46 14 759   Thanksgiving break  
Fri 11/26 46 14 773   Thanksgiving break  
Sat 11/27 46 14 787   Thanksgiving break  
Sun 11/28 46 14 801   Thanksgiving break  
WEEK 6

Day

Date

Water 

Temp.

(degrees F)

Temperature 

Units 

Earned

Running 

Total 

T.U.'s

Mortality 

of Eggs (E)

or Fry (F)

Comments

Photos

(Click the camera)

Mon 11/29 46 14 815   Wow! The fish are looking like fish now!  They have some yolk sac left but we need to think about releasing them next week.  
Tues 11/30 46 14 829    
Wed 12/1 46 14 843      
Thurs 12/2 46 14 857      
Fri 12/3 46 14 871      
Sat 12/4 46 14 885      
Sun 12/5 46 14 899      
WEEK 7

Day

Date

Water 

Temp.

(degrees F)

Temperature 

Units 

Earned

Running 

Total 

T.U.'s

Mortality 

of Eggs (E)

or Fry (F)

Comments

Photos

(Click the camera)

Mon 12/6 46 14 913    
Tues 12/7 46 14 927      
Wed 12/8 46 14 941      
Thurs 12/9 46 14 955

13 F

5 E

Fish Release Day! The fish were put into Firemans' Pond.  A total of 35 died (22 Eggs and 13 Fry).  That means 365 trout survived.  That's a survival rate of 365/400 = 91%

 

DAILY  PHOTOS  2010

Date Photos - click Photos - click to enlarge Photos - click to enlarge Photos - click to enlarge Photos - click to enlarge Photos - click to enlarge

 

 

wpe16.jpg (40742 bytes)

The water pH is 7.6

A reading of pH 7.0 is alkaline (base) so our water is slightly on the acidic side.

 

Note:  pH = percent Hydrogen

This is the chart we will use to predict the release date for our trout.

 

STEP Program poster

This is our pH scale

The Salmon Life

Cycle poster

10/28

 

The eggs are delivered in a paper towel and kept cold in a cooler during transport.

Our rainbow trout eggs are delivered.

Can you see the dead egg?

 

 

 

 

 

 

10/29

 

     
11/9    

11/15

 

11/30

 

 

 

12/6

   
12/9    
12/9      

 

Question:  What is a "Temperature Unit"?  

One Temperature Unit (or T.U. as we refer to it) is one degree on the Fahrenheit temperature scale.  The eggs earn one T.U. for every degree above freezing (32F) our water is.   For example, if the water is 40 degrees, that is 8 degrees above freezing, so the eggs have accumulated 8 T.U.s or 40 - 32 = 8.

 

Take Me to the Top Please

 

See More Kokanee Karnival Activities