operculum movement

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OPERCULUM MOVEMENTTemperature Vs. Operculum Movement

Leader: ABELLA, Davy Jean D.Members: AGCOL, Jacques Matthew Einstein E.

JOAQUINO, Jevykisse P. TINIO, Dime Carl B.

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I. PROBLEMII.MATERIALSIII.PROCEDUREIV.RESULTS AND DISCUSSIONSV.CONCLUSION

“DISTINGUISHING THE OPERCULUM MOVEMENT OF FISH DEPENDING ON WATER TEMPERATURE”

PROBLEM / OBJECTIVE

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VARIABLES

Independent variable: Temperature of water

Dependent variable: No. of Operculum movement of fish

Controlled variable: Volume of Water

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MATERIALS

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PROCEDURE

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PROCEDURE

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3. Ice was added in the 1000ml 3. Ice was added in the 1000ml beaker beaker with half full tap with half full tap water. Again, the water. Again, the temperature temperature was measured using was measured using a mercury a mercury thermometer and waited thermometer and waited for for the temperature to reach 10˚C.the temperature to reach 10˚C.

4. The fishes were then returned 4. The fishes were then returned to the to the tank.tank.

5. The average number of 5. The average number of operculum operculum movements as movements as calculated for each calculated for each of the three of the three different water different water temperature temperature trials.trials.

SETUP

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SETUP 1 SETUP 2 SETUP 3

20C 10C30CNormal room temp.

Control Setup: SETUP 1

Experimental Setup: SETUP 2 & 3

RESULTS AND DISCUSSION

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NO. OF OPERCULUM MOVEMENT OF FISH PER MINUTE

RESULTS AND DISCUSSIONS

10

0

20

40

60

80

100

120

140

160

180

Fish 1 Fish 2

3 4

119125

168 166

Av

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No

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Op

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m M

ov

em

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tp

er

min

ute 10˚C

20˚C

30˚C


After the students have recorded the no. of operculum movement in different temperature of water, It was observed that “the lower the temperature of water, the lower the number of operculum movement of fish.”

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In a 30˚C temperature of water, higher no. of operculum movement of fish was observed. In this case, the temperature makes fish breathe at a faster rate because warm water contains less oxygen. In a 20˚C temperature of water, it was observed that the fish breathe not faster than that of the warmer water or the 30˚C water temperature.

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However, the operculum movement of the fishes was much slower in a 10˚C temperature than that of higher temperature. Fish can’t live last long in very cold water that they may eventually die. This was the student’s observation based on the experiment.

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When the students tried to transfer the fish in a colder temperature, their operculum movement suddenly slows down and stopped. The fish settled at the bottom of the beaker. The students tried to recover the fish. The fish was transferred in the beaker with normal room temperature of water. The operculum of fish started to move faster, but the fish was not exactly in a normal condition. After a few minutes, the fish started to recover and was back at its normal state.

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Same as what happened to the Fish 2, when the students transferred it to a 10˚C temperature of water, in just a few seconds its operculum movement stopped and the fish almost died.

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CONCLUSION

According to some information about the operculum movement of fish (R. Edmondson, United

States 2006), cold water has more dissolved oxygen than that in warm water.

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CONCLUSION

Therefore, the fish had to take more breaths in the warmer water to get much oxygen. Based on the results of the experiment, it was concluded that the rate of operculum movement of fish is higher in warm water and lower in cold water.

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CONCLUSION

The students also found out that an increase in water temperature means a decrease in dissolved oxygen.

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CONCLUSION

We all know that there are so many kinds of fish and they also have different characteristics, and so, the students came up with a conclusion that not all fish will have the same results as this if we try to conduct again an experiment about the operculum movement with a different species of fish.

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THE END

Thank You

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operculum movement

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