Sunday, March 8, 2009

some thoughts on coral reproduction for those a little unsure..






the best way to tell you is to show you pictures and diagrams....makes it easier to understand.












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28 comments:

  1. Natalie WisemanMarch 9, 2009 at 4:18 PM

    can they not use DNA?

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  2. AshtonMarch 9, 2009 at 6:33 PM

    today in biology we talked about fungi that shot spores when people stepped on them. called puff balls or something. i thought it was funny & it reminded me of coral!

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  3. AshtonMarch 9, 2009 at 6:33 PM

    and natalie, they can use DNA, but interbreeding makes it difficult to distinguish the species from each other, since they have some much DNA in common.

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  4. Brittney MorrowMarch 9, 2009 at 8:58 PM

    It would be cool to watch this process happen step by step first hand, well minus the 4-5 years part it takes to mature, but the charts are really helpful in understanding the interbreeding of coral.

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  5. Mrs. BMarch 9, 2009 at 9:39 PM

    Ashton,
    Puff balls rule. We used to play with them when I was little and played in the woods by the streams and stuff.....hope someday you can get one to puff.......

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  6. Natalie WisemanMarch 9, 2009 at 10:04 PM

    i agree wit you chump..

    but the way calc..is looking i might be around lhs for 4 more years.so i will have time to observe the process!


    what would happen if the corals all disappeared?

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  7. TripperMarch 9, 2009 at 11:20 PM

    nat to answer that ? they would be gone haha but im jk but the diagrams did help alot but what if they had the same dna would they not be the same species ashton

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  8. Megan_YoungMarch 10, 2009 at 12:56 AM

    Is it really possible for all the corals to dissappear? Remember that the corals are little organisms and the remains they leave behind when they die. If all the corals disappeared we'd lose a lot of species and a lot of pretty sights too.

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  9. Mrs. BMarch 10, 2009 at 5:48 AM

    Megan,
    All the corals - yes. remember that the corals are the animals and the old , preexisting reef structures would still be here, just not any more being built.

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  10. williamMarch 10, 2009 at 7:23 AM

    It seems that everything we talk about in environmental We somehow talk about in biology in third period or we at least mention the same thing. It really helps to learn something twice.

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  11. ArielMarch 10, 2009 at 3:49 PM

    I wonder if the eggs could attach to the fish like those little seed pods get caught on your pants when you go in the woods.

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  12. Matt @ NCSUMarch 10, 2009 at 7:35 PM

    Just wondering...during the whole process how much actually makes it to the coral and how much floats away in the water? Plus...i know this will sound dumb but what if the spray from the coral landed on fish eggs and since they both fertilized in the same manner could the coral spray harm the fish eggs or have any affect on other lifeforms?

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  13. Mrs. BMarch 10, 2009 at 8:27 PM

    Sara says:

    It's so weird to think of coral a lots of tiny animals and expecially weird that they just throw their eggs out in the ocean hoping they will live! I wonder if there is a way for humans to enhance the process and help the coral out since we are helping kill them? (Oh and that's kind of gross what Ariel said about if the eggs could get on you like seed pods from the woods. I'm not sure I want to think about that!)

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  14. Mrs. BMarch 10, 2009 at 8:29 PM

    Matt,
    Don't have a clue about how much makes it to the corals.! however, I would suspect that since there are no reports of coral spray hurting fish or the other way round, that they are pretty safe in their reproductive methods.

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  15. AlishaMarch 10, 2009 at 9:54 PM

    Why do they need a hard surface, why can't the babies just lay on the sand.
    and tripper ashton was just saying that interbreeding causes the dna to look alike and it's hard to tell them apart.

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  16. Mrs. BMarch 10, 2009 at 10:02 PM

    it has something to do with attaching to the hard surface so they won't float away to deeper, colder water were they won't survive....there are some cold water corals, but they are still in relatively shallow water.

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  17. OliviaMarch 10, 2009 at 10:15 PM

    So does messing with or (researching) hurt the coral?? Thanks for the charts they helped alot:)

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  18. BrettttMarch 10, 2009 at 10:53 PM

    i got a jump on this coral stuff because my friend had an oceanic aquarium with corals and crabs and fish and stuff with tons of books about them, it's all very interesting

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  19. cmillerMarch 11, 2009 at 9:48 AM

    The charts really helped me understand how the corals interbreed, I have a better grasp on the subject now.

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  20. loganMarch 11, 2009 at 4:55 PM

    Brett if youre talking about cody, does he still have that shark?

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  21. rachelMarch 11, 2009 at 11:46 PM

    yeah i was wondering about that too olivia because coral is easily disrupted and apparently its hard for the babies to survive when coral is damaged. so i would think any kind of interaction could be harmful

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  22. MeganWMarch 12, 2009 at 10:33 PM

    those charts definately helped me. thanks mrs b.

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  23. benMarch 13, 2009 at 7:04 PM

    Why doesn't the sperm dilute in the water?

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  24. Mrs. BMarch 16, 2009 at 12:29 PM

    too thick and viscous

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  25. MollieMarch 17, 2009 at 8:22 PM

    Okay, iM a little confused. So coral isn't just a plant? they reproduce with eggs and sperm that eventually lead to little baby coral? who would have ever known?

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  26. Mrs. BMarch 26, 2009 at 7:15 AM

    You know, it is really interesting thinking about how coral reproduce. It is interesting when you think that evolution has brought these plants/animals (a “planimal?”) so far. But, it does not make sense. It seems like an unprotected developing coral animal is prone to the dangers of the open sea. I guess there is obviously a reason why these plants reproduce the way they do, but it would seem like a developing coral animal is very susceptible to predators before it attaches to a solid, clean surface. It reminds me of the sea turtles that hatch from the beach and then have to make the trek to the ocean over night fighting off ghost crabs. The developing coral animals seem like they would be in danger of getting eaten or something. Can you explain that?

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  27. Mrs. BMarch 26, 2009 at 7:17 AM

    last post was Justin's.....

    Justin, they produce so many eggs that even though that is a threat, it doesn't seem to impact them.

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  28. LawsonMarch 26, 2009 at 10:32 PM

    soo is this reproductive system a hit and miss thing, or does it naturally know to go to a smooth rock??

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