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Our aquarium incubator is a converted mini-fridge that has a 5-gallon tank inside. |
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| 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 | |||||||
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Day |
Date |
Water Temp. (degrees F) |
Running Total T.U.'s |
Mortality of Eggs or Fry |
Comments |
Photos (Click the camera) |
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| Mon | 10/24 | 46 | ----- | 252 | 200 Rainbow Trout eggs were delivered today. The eggs are in the green egg stage and are very young. They were hatched at Oak Springs Hatchery. Some are a milky white color. |
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| Tues | 10/25 | 46 | 14 | 266 | |||
| Wed | 10/26 | 46 | 14 | 280 | |||
| Thurs | 10/27 | 46 | 14 | 294 | |||
| Fri | 10/28 | 48 | 14 | 308 | |||
| Sat | 10/29 | 48 | 16 | 324 | 24 eggs | 176 eggs remain. Our 5 gallon tank is small and dark so Monday we will move them to a 10 gallon tank with better visibility for students. | |
| Sun | 10/30 | 48 | 16 | 340 | |||
| WEEK 2 | |||||||
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Day |
Date |
Water Temp. (degrees F) |
Running Total T.U.'s |
Mortality of Eggs (E) or Fry (F) |
Comments |
Photos (Click the camera) |
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| Mon | 10/31 | 48 | 16 | 356 | We could not move the eggs to the better viewing tank. The chiller unit on the tank is broken. |
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| Tues | 11/1 | 46 | 14 | 370 | |||
| Wed | 11/2 | 46 | 14 | 384 | |||
| Thurs | 11/3 | 46 | 14 | 398 | |||
| Fri | 11/4 | 46 | 14 | 412 |
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| Sat | 11/5 | 46 | 14 | 426 | |||
| Sun | 11/6 | 46 | 14 | 440 | |||
| WEEK 3 | |||||||
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Day |
Date |
Water Temp. (degrees F) |
Running Total T.U.'s |
Mortality of Eggs (E) or Fry (F) |
Comments |
Photos (Click the camera) |
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| Mon | 11/7 | 46 | 14 | 454 | |||
| Tues | 11/8 | 46 | 14 | 468 | 2 eggs | Their eyes are very dark and large now. |
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| Wed | 11/9 | 46 | 14 | 482 | |||
| Thurs | 11/10 | 46 | 14 | 496 | |||
| Fri | 11/11 | 46 | 14 | 510 | One egg hatched into an alevin! |
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| Sat | 11/12 | 46 | 14 | 524 | |||
| Sun | 11/13 | 46 | 14 | 538 | |||
| WEEK 4 | |||||||
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Day |
Date |
Water Temp. (degrees F) |
Running Total T.U.'s |
Mortality of Eggs (E) or Fry (F) |
Comments |
Photos (Click the camera) |
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| Mon | 11/14 | 46 | 14 | 552 | 13 alevin are hatched today. | ||
| Tues | 11/15 | 48 | 16 | 568 | 1 egg | 31 alevin are now hatched! 173 still alive |
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| Wed | 11/16 | 48 | 16 | 584 | |||
| Thurs | 11/17 | 48 | 16 | 600 | 5 eggs | The eggs are mostly hatched into alevin. The water is very foamy from the egg shells floating around. We took the foam off. 168 still alive |
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| Fri | 11/18 | 48 | 16 | 616 | Thanksgiving break | ||
| Sat | 11/19 | 48 | 16 | 632 | Thanksgiving break | ||
| Sun | 11/20 | 48 | 16 | 648 | Thanksgiving break | ||
| WEEK 5 | |||||||
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Day |
Date |
Water Temp. (degrees F) |
Running Total T.U.'s |
Mortality of Eggs (E) or Fry (F) |
Comments |
Photos (Click the camera) |
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| Mon | 11/21 | 48 | 16 | 664 | Thanksgiving break | ||
| Tues | 11/22 | 48 | 16 | 680 | Thanksgiving break | ||
| Wed | 11/23 | 48 | 16 | 696 | Thanksgiving break | ||
| Thurs | 11/24 | 48 | 16 | 712 | Thanksgiving break | ||
| Fri | 11/25 | 48 | 16 | 728 | Thanksgiving break | ||
| Sat | 11/26 | 48 | 16 | 744 | Thanksgiving break | ||
| Sun | 11/27 | 48 | 16 | 760 | 4 eggs | The fish are all in the alevin stage now. They were freed from the wooden screen and are swimming in the tank now. 164 still alive |
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| WEEK 6 | |||||||
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Day |
Date |
Water Temp. (degrees F) |
Running Total T.U.'s |
Mortality of Eggs (E) or Fry (F) |
Comments |
Photos (Click the camera) |
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| Mon | 11/28 | 48 | 16 | 776 | |||
| Tues | 11/29 | 48 | 16 | 792 | |||
| Wed | 11/30 | 48 | 16 | 808 | |||
| Thurs | 12/1 | 48 | 16 | 824 | 2 alevin | 162 still alive. The alevin are hanging out together in the fish tank in a school. |
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| Fri | 12/2 | 48 | 16 | 840 | 3 alevin | 159 still alive. | |
| Sat | 12/3 | 48 | 16 | 856 | |||
| Sun | 12/4 | 48 | 16 | 872 | |||
| WEEK 7 | |||||||
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Day |
Date |
Water Temp. (degrees F) |
Running Total T.U.'s |
Mortality of Eggs (E) or Fry (F) |
Comments |
Photos (Click the camera) |
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| Mon | 12/5 | 48 | 16 | 888 | |||
| Tues | 12/6 | 48 | 16 | 904 | |||
| Wed | 12/7 | 48 | 16 | 920 | |||
| Thurs | 12/8 | 48 | 16 | 936 | |||
| Fri. | 12/9 | 48 | 16 | 952 |
The alevin are turning into fry |
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| Sat. | 12/10 | 48 | 16 | 968 | |||
| Sun. | 12/11 | 48 | 16 | 984 | |||
| WEEK 8 | |||||||
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Day |
Date |
Water Temp. (degrees F) |
Running Total T.U.'s |
Mortality of Eggs or Fry |
Comments |
Photos (Click the camera) |
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| Mon | 12/12 | 48 | 16 | 1000 | |||
| Tues | 12/13 | 48 | 16 | 1016 |
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| Wed | 12/14 | 48 | 16 | 1032 | |||
| Thurs | 12/15 | 48 | 16 | 1048 | Our last photos before we release the fish tomorrow. |
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| Fri | 12/16 | 48 | 16 | 1064 | RELEASE DAY PHOTOS |
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| Date | Photos - click | Photos - click to enlarge | Photos - click to enlarge | Photos - click to enlarge | Photos - click to enlarge |
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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.
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STEP Program poster |
This is our pH scale |
The Salmon Life Cycle poster |
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The eggs are delivered in a special paper towel and kept cold in a cooler during transport. |
Do you see the unhealthy eggs? They are a milky white color.
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| 11/4 |
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This photo shows three eggs that don't look healthy |
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| 11/11 |
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| 11/27 |
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| 12/1 |
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| 12/13 |
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| 12/13 |
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weird Siamese twin fish sharing one yolk sac |
weird Siamese twin fish sharing one yolk sac |
dead alevin
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| 12/15 |
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| 12/16 | RELEASE DAY PHOTOS | ||||
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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) of the water. 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.
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