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Observing the Operculum Movement of Goldfish Under Different Environments

Observing the Operculum Movement of Goldfish Under Different Environments. Introduction. Water pollution is almost widespread all throughout the world and it affects a lot of living things, health-wise and environment-wise.

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Observing the Operculum Movement of Goldfish Under Different Environments

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  1. Observing the Operculum Movement of Goldfish Under Different Environments

  2. Introduction • Water pollution is almost widespread all throughout the world and it affects a lot of living things, health-wise and environment-wise. • The operculum is a hard, bony flap covering and protecting the gills. For fishes, the operculum is vital in obtaining oxygen. It’s movement and the movement of the mouth floor are coordinated to produce a stream of water, in through the mouth, over the gills, and out of the operculum.

  3. If the operculum is damaged, the fish will have difficulty breathing . • This experiment aims to see what happens to the movement of the fishes’ operculum when immersed in a different/polluted environment.

  4. Objective/Problem • What will the happen to the fishes’ operculum if it is immersed in a different/polluted environment?

  5. Hypothesis • Null: • - There is no significant effect in the fishes’ operculum movement if immersed in a polluted environment. Alternative: - There is a significant effect in the fishes’ operculum movement if immersed in a polluted environment.

  6. Materials • 2 goldfish • 3 liter set • 2 thermometers • 1 stirring rod • 1 graduated cylinder • 700 ml of tap water • 5 g of detergent

  7. Methods • After filling the liter sets with 700 ml of tap water, we took the temperature of the two liter sets.

  8. The second liter set had 5 g of detergent mixed in and had it’s temperature taken again after 2 minutes.

  9. The two goldfish have been placed in the liter sets without detergent and the liter set with detergent. Their operculum movement have been counted and observed for 2 minutes and the results have been recorded.

  10. Results • The operculum movement of the goldfish in the water with detergent was significantly greater than the one in the water without detergent.

  11. After 2 minutes, the fish in the liter set with detergent is removed and placed in the third liter set with clean tap water and was observed for the rest of the day. The following observations are as follows.

  12. Discussion • Due to the fact that the water enters the fish through the operculum, the water with the detergent entered the same way and may have possibly damaged the other breathing organs of the fish. • This has been supported by the fact that the second fish’s operculum has seen to be bleeding after it’s transfer to the clean water to enable it to recover.

  13. The detergent may have damaged the fish’s gill filaments to have caused it to protrude from under the fish’s operculum. • The damage to these filaments made it more difficult for the water that entered the fish to be properly expelled and it ended up circulating to and fro the fish’s breathing organs which may have lead to it’s death.

  14. This goes to show that if ever detergents or any other form of contaminants ever goes in the water, it may affect other fishes in the same way it affected the goldfish. And since detergents are an example of organic water pollutants, this may just happen in the near future.

  15. Conclusion • Therefore, the group has concluded that there is a significant effect in the fishes’ operculum movement if immersed in a polluted environment.

  16. References • http://www.earthlife.net/fish/gills.html • http://www.cormp.org/documents/Fish%20metabolism.doc • http://en.wikipedia.org/wiki/Operculum_(fish) • http://www.biology-resources.com/fish-01.html • https://en.wikipedia.org/wiki/Water_pollution

  17. Authors: Group Three • BESARIO, Vince • DIAZ, Cherie Loriel • GO,AmielBruisse • URIARTE, DuaAeka

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