[Coral-List] bleaching on the Great Barrier Reef (Alina Szmant)

[Douglas Fenner]

This one has me laughing.  I wasn't deliberately trying to target Gene, but
this seemed an obvious error.

On Tue, Mar 22, 2022 at 12:51 AM Bill Allison <allison.billiam at gmail.com>
wrote:

> Of course they are dead Doug.:-)
> Perhaps I should have made it clear that the algal coating at the stage
> mentioned was very difficult to discern as algae with the naked eye and
> quite impossible to discern as such on video even when the camera was close
> to the coral. Perhaps depth and natural lighting were factors. I'll have to
> check that.
> Bill
>
> On Tue, Mar 22, 2022 at 6:20 AM Douglas Fenner via Coral-List <
> coral-list at coral.aoml.noaa.gov> wrote:
>
>> If they got overgrown by algae, they are almost certainly dead.  Which
>> fits
>> with what I said that it is quite hard to tell the difference between
>> bleached and newly dead, even if you are just inches from them (let alone
>> an airplane).  Live tissue on a bleached coral is clear, so it is
>> especially hard to see.  You see the white skeleton, just like when the
>> coral is just died.  Hard to see clear tissue.
>> Cheers, Doug
>>
>> On Mon, Mar 21, 2022 at 3:31 AM Eugene Shinn via Coral-List <
>> coral-list at coral.aoml.noaa.gov> wrote:
>>
>> > Alina, I think you are right. When we had bleaching in the keys heads
>> > stayed white for only a couple of weeks. They quickly get overgrown by
>> > dark colored algae.I am sure you saw that too. Gene
>> >
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