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Re:100% coral mortality found in coral reef off Florida as o... by jgalt212 on Monday July 24, 2023 @08:40PM (#36856247)
The reefs will move north. Not to be flip, and say that climate change is not an issue, but here the planet can and will adjust--if not on the timeline us humans (and humans who make our livings off tourism) would like.
Re:100% coral mortality found in coral reef off Florida as o... by AeiumNE on Monday July 24, 2023 @08:45PM (#36856294)
Isn't this the kind of thing that is possible with less than 100% mortality?

Like the northern cooler part survives and the reef moves that way?

Re:100% coral mortality found in coral reef off Florida as o... by olliej on Monday July 24, 2023 @11:18PM (#36857444)
Alas not with ocean acidification.

What makes temperature induced die off significant is that they’re essentially instantaneous: any part of the reef that exceeds some critical temperature dies completely and immediately. The core problem is the temperature increases are far faster than can be grown away from.

Acidification is slower but persistent and inescapable. It attacks existing coral and prevents new growth.

Re:100% coral mortality found in coral reef off Florida as o... by kuhewa on Monday July 24, 2023 @11:51PM (#36857656)
> any part of the reef that exceeds some critical temperature dies completely and immediately.

Typically exceeding CTmax results in bleaching, the expulsion of symbiotic microalgae from the animal polyps, and there is a window of weeks to months in which they will return if temperatures decrease. In the terrible Great Barrier Reef bleaching years of the past decade where individual reefs were facing near complete bleaching, many have made full recoveries.

Worth noting coral reefs are highly diverse, even with very high mortality of corals there are crustose coralline algaes and other habitat building species still at work so the reef doesn't die completely, and 'weedier' coral species start ecological succession quickly.

To your point though these are novel and trying times for low latitude reefs, at least historically speaking.

Re:100% coral mortality found in coral reef off Florida as o... by routerl on Monday July 24, 2023 @09:02PM (#36856436)
Reductive af comment.

First, you've described something that happens with less than 100% mortality, so it doesn't apply here.

Second, you've described a non-standard ecological migration. No one in 2023 should be too dumb to realize that this has enormous consequences.

Are there really still people who are this ignorant about ecology, or are you just a Shell bot/simp?

Re:100% coral mortality found in coral reef off Florida as o... by jgalt212 on Monday July 24, 2023 @09:55PM (#36856894)
> Reductive af comment.

Comments like this are well outside of site guidelines.

Re:100% coral mortality found in coral reef off Florida as o... by Madmallard on Monday July 24, 2023 @10:26PM (#36857119)
Don’t think that’s true and I think moderation would give it a pass considering the severity of the overarching situation you’re minimizing.
Re:100% coral mortality found in coral reef off Florida as o... by klyrs on Monday July 24, 2023 @11:33PM (#36857543)
>> Are there really still people who are this ignorant about ecology, or are you just a Shell bot/simp?

This goes way over the line. Per the guidelines,

> Comments should get more thoughtful and substantive, not less, as a topic gets more divisive.

So no, the severity of the situation does not warrant personal attacks and accusation of shilling.

Re:100% coral mortality found in coral reef off Florida as o... by olliej on Monday July 24, 2023 @11:16PM (#36857430)
An important part about reef migration (or in fact any environmental adaption) is that it takes significant amounts of time. In the order of hundreds if not thousands of years.

Reefs do not grow or expand quickly, and mass die offs due to temperature are funamentally not recoverable.

But even if they could it is not a long term solution, as ocean acidification means that reefs are become gradually non viable everywhere.

On the other hand your username and attitude both imply you’re “libertarian”, which in general means appealing to basic science is of questionable value here.

Re:100% coral mortality found in coral reef off Florida as o... by kuhewa on Tuesday July 25, 2023 @12:11AM (#36857777)
> But even if they could it is not a long term solution, as ocean acidification means that reefs are become gradually non viable everywhere.

More metabolic stress and lower calcification rates but to my knowledge there isn't research to support projected ocean pH making reefs nonviable globally. The photic zone in which reefs grow will still be a good ways off from the CaCO3 saturation depth, although some deepwater mesophotic reefs and regions, less so. Heatwaves will remain the dominant threat for a while yet.

Re:100% coral mortality found in coral reef off Florida as o... by kuhewa on Monday July 24, 2023 @11:42PM (#36857585)
It isn't a given that the reefs will move north. Migratory fish, certainly. And in some regions some coral species are redistributing poleward, like tropical Pocilopora alicae into Sydney Harbour. The pelagic larvae of some species will probably find hard substrate to settle on further north and colonies will probably grow, in some number at least. Whether there is sufficient hard benthos that isn't exposed to too much eutrophication, wave action, hurricanes, turbidity from coastal development, disease outbreaks et cetera on a regular basis for reefs to grow is another question. Keep in mind that biogenic reefs have formed over thousands and thousands of years.
Re:100% coral mortality found in coral reef off Florida as o... by throwawaylinux on Tuesday July 25, 2023 @05:11AM (#36859826)
> The reefs will move north. Not to be flip, and say that climate change is not an issue, but here the planet can and will adjust--if not on the timeline us humans (and humans who make our livings off tourism) would like.

I'm not sure about that. The vast majority of coral reef destruction around the world has not been due to climate change but other human activity. Fishing, as well as agriculture, forestry, erosion, cities, dredging and shipping, that cause sediment and nutrient and chemical poisons.

Re:100% coral mortality found in coral reef off Florida as o... by lm28469 on Tuesday July 25, 2023 @08:46AM (#36861428)
> The reefs will move north

With an average speed of 1 inch per year they better start sprinting now