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Old 05/03/2015, 05:55 PM   #1
banthonyb71
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Sponge my take over the reefs?

http://theconversation.com/sponge-v-...w-battle-40927

Just found this article when I was searching for a certain thread. Something must be done about over fishing. or all the corals will be in our aquariums.


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Old 05/04/2015, 05:44 PM   #2
billsreef
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It's not just sponge growth, but also macro algae growth (probably more so the algae) that is causing problems from overgrowth due to loss of grazers...primarily Parrot Fish which are targeted in many Caribbean Island fisheries.


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Old 05/08/2015, 06:33 PM   #3
Timfish
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I would encourage you to read Forest Rohwer's "Coral Reefs in the Microbial Seas" The big problem with reefs is the over fishing of the sharks (makes up 85% of the fish biomass {and provides a lot of poop loaded with phosphates, uric acid [nitrogen], calcium and magnesium carbonate crystals for corals to feed on}) then the big herbivores as Billsreef pointed out. Sponges are critical for converting the DOC released by algae into DIC used by corals. Unfortunately when the big herbivores are fished out that leaves a lot more algae releasing a lot more DOC for the sponges spurring their growth to deal with it. (And skimmers don't do much for DOC, do your water changes!)


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Old 05/09/2015, 02:02 AM   #4
Azedenkae
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Well... it may not be all that bad. Sponge reefs used to be very common millions of years ago, and served similar purposes anyways, to coral reefs. :3


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Old 05/09/2015, 08:12 AM   #5
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Amen to the post about overfishing Sharks as a MAJOR, yet often overlooked (very unfortu ate), reason why the Oceans are doing so poorly so rapidly as of late ... "Coral Reefs in the Microbial Seas" is definitely an excellent book, which I would highly recommend for anyone with a University/Research reading level


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Old 05/09/2015, 08:14 AM   #6
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Azedenkae. Please don't be one of those; perpetuating the "well, its all fine, things used to be that way before ... Yea, and the Planet was once run by dinosaurs ... C'mon now people !


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Old 05/09/2015, 09:34 AM   #7
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And if you're one offended (get a grip) by that post, you likely are a part of the problem. Cause a change in thinking/behavior, and be a part of the solution ...


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Old 05/10/2015, 07:16 PM   #8
Azedenkae
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Gee I thought my intentions would be obvious with a ':3' at the end, but guess not. >_>


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Old 05/10/2015, 07:50 PM   #9
billsreef
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We keep telling Doug and Jason to install that sarcasm font


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