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I think that’s a great point. The question I have with appressa is that it’s mainly a western Indian Ocean/Eastern African coastline coral with a small area of prevalence represented in Indonesia/Malaysia (which I’d bet is a separate species).Looks more like acropora appressa to me. I don’t see grannies with so many coralites and so much basing out but the axials are fairly smooth which is normal with appressa.
I think that’s a great point. The question I have with appressa is that it’s mainly a western Indian Ocean/Eastern African coastline coral with a small area of prevalence represented in Indonesia/Malaysia (which I’d bet is a separate species).
I think when the DNA studies are actually done, we’re going to have 5x as many acroporids as are currently recognized.
This pic looks like apache chief. Wonder if it's the same, just different vendor.Looks like my Frankenberry
I think this becomes more of a philosophical argument than a scientific one as there is currently no valid classification system/taxonomy for either wild or captive Acropora species barring either massive DNA work or attempts to sexually breed corals via crosses. And the latter may not be a valid means of assessing species given that Craggs et al. have successfully crossed different species with resultant viable offspring.I would not recommend identifying aquarium corals down to the species, as corals that have been in captivity for a long time may look very different than their wild counterparts.
Morphological analysis is definitely the best we can do given the lack of DNA proof behind species assignments, and as you pointed out, many of the species may not even be fully isolated from each other and just present different phenotypes but still be able to breed. This compounded with the fact that many aquarium acropora specimens are either too small to see full colony shape or flow/fragging patterns prevent the colony from taking its shape, it's usually a difficult question when someone asks on the forum to identify an acropora species.I think this becomes more of a philosophical argument than a scientific one as there is currently no valid classification system/taxonomy for either wild or captive Acropora species barring either massive DNA work or attempts to sexually breed corals via crosses. And the latter may not be a valid means of assessing species given that Craggs et al. have successfully crossed different species with resultant viable offspring.
So given the ongoing disaster that is current Acropora taxonomy with who knows how many occult species, I feel like defaulting to morphologic assessment is no great evil.
I freakin love these threads where we actually try to identify species with available information rather than going off looney tunes names.