[Coral-List] Coral Reefs Optimism

[William Precht]

I totally agree. Wow would I like to have that data now.

B
On Mon, Aug 14, 2023 at 3:59 PM Alina Szmant <alina at cisme-instruments.com>
wrote:

> Back in 2005 and 2007 we tried to raise larvae from Orbicella faveolata
> during bleaching years using same methods as in previous years.  Larvae
> more or less developed ok in terms of stages of development,  but with
> higher mortality than previous years. When it came time to settle we got
> almost no settlement.  Thus gametes from bleached or pre-bleacing but
> temperature stresed corals are not healthy, viable gametes. We submitted a
> paper of our data to Coral Reefs but I couldn't get it published because
> according to the editor it wasn't a hypothesis-drived controlled
> experiment. Maybe I should try to submit again given the current events.
>
>
>
> Dr. Alina M. Szmant,  CEO
> CISME Instruments LLC
>
>
>
> -------- Original message --------
> From: William Precht via Coral-List <coral-list at coral.aoml.noaa.gov>
> Date: 8/14/23 10:10 AM (GMT-05:00)
> To: International Coral Reef Observatory <icrobservatory at gmail.com>
> Cc: coral list <coral-list at coral.aoml.noaa.gov>
> Subject: Re: [Coral-List] Coral Reefs Optimism
>
> The fact that the species observed spawning were species that spawned on
> their expected dates and times makes this mass abortion hypothesis pretty
> weak.  Whether or not these gamete bundles will be viable or not is another
> question since the corals - both the Acoporids and Orbicella’s - have
> sexually reproduced and recruited extremely poorly (non-existantly) for
> decades throughout the Caribbean.
>
> Although there is a high cost associated with reproduction, it is
> imperative to perpetuate the species -  this is the biological imperative!
> Therefore, heavier than normal  gamete production maybe be triggered by a
> thermal stress event - that may be what we are witnessing here in Florida
> during this horrific heatwave
>
> I have witnessed this before in corals that have been stressed from
> disease.
>
> Bill
>
> On Mon, Aug 14, 2023 at 8:55 AM International Coral Reef Observatory via
> Coral-List <coral-list at coral.aoml.noaa.gov> wrote:
>
> > Dear Colleagues,
> >
> > We have also received reports from other parts of the Caribbean Sea.
> > Dr. Thomas Goreau mentioned that coral spawning in Florida is probably
> > heat-induced mass abortion of immature eggs and sperm that are unlikely
> to
> > be viable. He has seen mass premature release of coral spawn triggered by
> > bleaching events in Indonesia, so much that the sea surface was red and
> > yellow! There was little coral recruitment the following year, and it
> took
> > several years for reproductive recovery of annually spawning species.
> >
> >
> >
> > In the 1980s, He found bleached corals did not lay down skeleton bands
> > marking reproduction, because they did not have sufficient energy to
> spawn.
> >
> >
> >
> > Dr. Goreau also found in Seychelles and Maldives that pre-reproductive
> > juvenile corals had much higher bleaching survival than adults, because
> > they had not invested energy in reproduction.
> >
> >
> >
> > Bleaching started last month in Panama, but like Colombia, Panama is at
> the
> > moment protected by upwelling off La Guajira, however that will stop
> soon,
> > the waters will warm up again, and bleaching may resume then. In
> Colombia,
> > spawning may start at the end of August or in September.
> >
> >
> >
> > Nohora Galvis
> > ICRS World Reef Award Winner
> > ICRO Transdisciplinary Researcher
> > International Coral Reef Observatory
> > Follow us on Facebook.com/ICRObservatory
> > on Twitter / Instagram / YouTube  ICR_Observatory
> >
> > El mié, 9 ago 2023 a las 19:01, International Coral Reef Observatory (<
> > icrobservatory at gmail.com>) escribió:
> >
> > > Dear Colleagues,
> > >
> > > Good news from Corals Spawning by Dr.
> > > Liv Williamson, Ph.D.
> > > <https://twitter.com/livwilliamson>
> > > <https://twitter.com/livwilliamson>
> > > @livwilliamson
> > > <https://twitter.com/livwilliamson>:
> > >
> > > From Orbicella faveolata at Horseshoe Reef last night!
> > > https://twitter.com/livwilliamson/status/1689405494782214144
> > >
> > > Acropora cervicoris on August 5 2023 in Key Largo
> > > https://twitter.com/livwilliamson/status/1687856448037064704
> > >
> > > A ray of hope: surprisingly robust spawning on 8/2 and 8/3 from both
> > > Acropora cervicornis and Acropora palmata at North Dry Rocks, despite
> > > extensive paling, bleaching, & tissue loss/mortality. August 4 2023
> > > https://twitter.com/livwilliamson/status/1687570354569363458
> > >
> > > In situ (Florida Keys) Observations reported in Spanish
> > >
> >
> https://www.facebook.com/photo?fbid=664918835669508&set=a.457741103053950
> > >
> > > Nohora Galvis
> > > ICRS World Reef Award Winner
> > > ICRO Transdisciplinary Researcher
> > > International Coral Reef Observatory
> > > Follow us on Facebook.com/ICRObservatory
> > > on Twitter / Instagram / YouTube  ICR_Observatory
> > >
> > _______________________________________________
> > Coral-List mailing list
> > Coral-List at coral.aoml.noaa.gov
> > https://coral.aoml.noaa.gov/mailman/listinfo/coral-list
> _______________________________________________
> Coral-List mailing list
> Coral-List at coral.aoml.noaa.gov
> https://coral.aoml.noaa.gov/mailman/listinfo/coral-list
>