What have we really learned about coral?

Users Who Are Viewing This Thread (Total: 0, Members: 0, Guests: 0)

uniquecorals

UniqueCorals
View Badges
Joined
Nov 23, 2006
Messages
13,377
Reaction score
11,088
Location
Los Angeles
What state or country do you live in
California
Rating - 0%
0   0   0
Happy Monday!

First and foremost, thanks for making the Unique Corals 1st Anniversary Sale a huge, huge success. Hard to believe it’s been a year since we set up shop here in L.A. What a great journey for us! We so appreciate your loyalty, support, and friendship!

It’s been a year, so what have we learned?

Oh, quite a bit, actually!

In fact, I’d hazard to say that I personally have learned more about the hobby (and industry) in the past year than all of the combined decades I’ve been in the reefing game (and that’s since the beginning of the “reef†hobby!). Specifically, I’ve learned a lot about corals. Like, more than I ever thought I could.

And I still think I know nothing about corals.

Seriously!

I’d say that I’ve learned quite a few things, of course. But I laugh when I am introduced at conferences, etc. as an “expert†on them. I find it humorous. Although, as they say, an expert is someone who “knows more and more about less and lessâ€, so I might qualify as an expert on some things….I suppose we all might, right?


UC3andhalfinch-chesterfieldensis-128.jpg


So, what’s the single most important lesson I’ve learned about coral during Unique Corals’ first year in existence?

I’d have to say that I’ve learned that corals are surprisingly adaptable creatures, which can withstand a surprising amount of abuse. I mean, in many cases, we’re talking about an animal that was unceremoniously hacked off of a rock, or pulled off of a mariculture rack somewhere in the South Pacific, thrown in a bucket, tossed into a holding tank at the collector’s facility, thrown in a box, and sent to Los Angeles the next day, or maybe several days later. And then, upon arrival in L.A., they are unpacked and acclimated to new conditions at the wholesaler, then shipped on to a retailer, and finally, to your tank. That’s a serious journey!


Coral_planting_and_reef_restoration_may_11_-2.jpg


I could make the jump and state that corals can handle much more abuse than we can typically meter out in our reef keeping experience, but that could be interpreted as an overly-generalized statement. I think it is safe to say, however, that many corals do have surprisingly well-developed adaptation strategies to deal with disruptions to their environment. How else could you explain their remarkable adaptability to the abuse we sometimes subject them to?

Although, I can tell you from experience that some corals don’t seem to ship as easily and happily as others. They just melt away, or brown out and take months to recover from an overnight trip, when they were previously thriving in our systems for months. Some “Chalicesâ€, Acros, and Acans just don't like to fly, I guess.


fedex.jpg



And, that’s not all. We often “help†corals to adapt to environmental conditions outside of their typical range. In other words, you’ll place that Chalice coral under the bright glare of halides just as easily as you’ll place that new Acropora frag under slightly underpowered LED’s, and the coral will do fine. This despite our typical hobbyist-proferred recommendation for lighting. I’ll hazard I guess that our water movement and diet offerings, though better every year, are far from what many coral have been biologically evolved to adapt to.

UC2inch-orange-bowerbanki-58.jpg


This leads me to another question I’ve been contemplating, and I can use your help in getting my head around it: Do you think that corals that have been propagated for some time in captivity adapt physiologically, or even genetically to the conditions we maintain them under, and truly are easier to keep than wild specimens of the same species? Or, is the “genetic†assumption just a wild speculation? I hear reefers put out that theory a lot and I know my scientist friends probably cringe when they hear it. I mean, they’ve been in nature for millions of years, and kept in aquariums for a couple dozen..Or, is it that we’ve just discovered some “minimum survival threshold†under which we know they will survive or thrive, and thats where we are?


Ching_Chai_2_640.jpg


What kinds of surprises have coral taught you during your reef experiences? If you had to name one coral the “most hardy†or “most adaptableâ€, which one would it be, and why? What’s the one coral that took you by surprise? The one you thought would be a touchy, pain-in-the-rear diva, that turned out to be super easy to care for and remarkably adaptable?

Share your theories and discoveries with everyone here! I think everyone is an “expert†on some aspect of coral keeping, and we’d like to hear what you have learned!

I’ve gotta ship some orders!

Until next time,

Stay Wet.

Scott Fellman
Unique Corals


 
Enjoy these thoughts you have! HA!
 
I'm not sure about changing the genetic make up of a coral by simply fragging it and growing it out again and again in captivity. But I do think a coral can acclimate and evolve to the point that it thrives and grows faster and is more colorful in captivity.
 
This is just my opinion, but I believe that surviveability starts with a coral's naturally occurring genetic makeup. The animal has to be able to survive the collection ordeal, shipping ordeal, the holding tank ordeal and whatever else...and still color up quickly, grow and do well for the reef aquarist. These genetic traits allow for the organism to survive in a number of different captive environments and so it gets distributed over a wide audience. We assume the coral has 'adapted' specifically to captivity when in reality it was already naturally predisposed to survive and have certain traits that aquarists find desirable.

Having said that, a coral that has had decades of time in captivity (ie:: Stuber's Acropora), is likely even better adapted to captivity than it's wild counterpart due mainly to certain genes being fully expressed, partially expressed or even turned on/off due to it being subject to a captive environment for such a long time.
 
It just amazes me that these corals survive at all being taken out of their natural envirement and subjected to all these changes. It has to be very stressfull for these corals to go through these transitions. As reefkeepers we probaly never think about this.
 
Without sexual reproduction there can be no genetic adaptation.

Not true at all, corals propagate asexually in our reef system. Each time a cell replicates, it may not due so exactly. So the same can be said of new polyps budding off or splitting. In order to do this cell are replicating to make the new polyp. These variations result in morphs for the zoa paly people, and maybe unique growth form for the sps. Albeit the variation is slight it over time is cumulative.
Apple trees are a good example. What make a new variety apple? The vast majority of varieties arose from but sports. The new growth tip at the end of one branch has a mutation. This mutation is passed to all new growth from that bud. The famous Macintosh apple was the result of a farmer noticing an odd branch bearing fruit in his orchard. All resultant trees of the Macintosh variety come from that original bud sport. Now say the same applies to an sps colony and I clip off just that odd part and propagate it. It may be vastly similar to the parent, but technically it genetically different.
 
Without sexual reproduction there can be no genetic adaptation.

Not true at all, corals propagate asexually in our reef system. Each time a cell replicates, it may not due so exactly. So the same can be said of new polyps budding off or splitting. In order to do this cell are replicating to make the new polyp. These variations result in morphs for the zoa paly people, and maybe unique growth form for the sps. Albeit the variation is slight it over time is cumulative.
Apple trees are a good example. What make a new variety apple? The vast majority of varieties arose from but sports. The new growth tip at the end of one branch has a mutation. This mutation is passed to all new growth from that bud. The famous Macintosh apple was the result of a farmer noticing an odd branch bearing fruit in his orchard. All resultant trees of the Macintosh variety come from that original bud sport. Now say the same applies to an sps colony and I clip off just that odd part and propagate it. It may be vastly similar to the parent, but technically it genetically different.
 
This is very interesting stuff, indeed. And I am very interested in the continued discussion on adaptivity versus genetic changes, etc. So much we don't know, and I think us hobbyists may have made many assumptions about corals over the years based more on anecdotal experience than factual data...or have we?

-Scott
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%

New Posts

Back
Top