[Coral-List] bangladesh Bleaching Event
Alan E Strong
Alan.E.Strong at noaa.gov
Tue Aug 17 11:16:58 EDT 2004
Hello: M Islam,
Check: http://www.osdpd.noaa.gov/PSB/EPS/SST/hotspot_archive/hotspot98.html
Coral Reef Watch was indeed posting information during 1998 (although our program was not operational at that time...only experimental)....check out the July 13th, 1998 HotSpot chart, for example. We also have posted at this website reports from the field that verified bleaching over parts of the Bay of Bengal....(e.g. Andaman Islands)
Cheers,
Al Strong
m islam wrote:
> Hello all......
>
> I am working in bangladesh...there has been no information regarding 1998 coral bleaching. But I was observing since 1996. and have seen some bleaching in 1998 and also in last winter. will send within short time some photo for comments. altough not monitored and evaluated. MarineLife Alliance is trying to monitor and save the remaining coral colonies.
>
> MarineLife Alliance
> Bangladesh
> ================
>
> "Jaap, Walt" <Walt.Jaap at MyFWC.com> wrote:
> We saw a mass bleaching occur in late August- early September in 1983. See Proc. 5th Int. Coral Symp. 143-148. Walt
>
> -----Original Message-----
> From: coral-list-bounces at coral.aoml.noaa.gov
> [mailto:coral-list-bounces at coral.aoml.noaa.gov]On Behalf Of Billy Causey
> Sent: Sunday, August 15, 2004 10:45 PM
> To: Gang Liu
> Cc: Coral List; Kim Ritchie; FKNMS; Tim Keeney
> Subject: Re: [Coral-List] Gulf of Mexico Region Potential Bleaching
> Event-"Heads up"
>
> Gang Liu,
> Thank you for this alert and heads-up. We had a Sanctuary Team, a Mote Marine
> Lab scientist and our Deputy Assistant Undersecretary in the Tortugas when you
> sent this message out and I am just getting a chance to respond. Yes, sea
> surface temperatures have been high this summer and we have been watching for
> the development of hot spots throughout the Keys. We want to thank you and
> everyone involved for keeping this system functioning. The system works
> incredibly well for identifying the sst hot spots, but it takes some
> ground-truthing to integrate field observations (including weather patterns)
> with the hot spot observations. From our experience in the Keys, it takes a
> week or more of slick-calm doldrum weather patterns, coupled with extreme
> thermal stress, and cloudless days (which often accompany doldrum weather
> patterns) ... all occurring at once. If we start receiving afternoon trade
> winds and the sea becomes chopped up a little, the conditions for a mass
> bleaching event begin to dissipate for the time being. We had numerous false
> starts this summer .. with 4-5 days of doldrum weather and your system was
> alerting us to hot spots... but hen the afternoon trade winds would pick up
> again ... mixing the surface waters and conditions would improve.
>
> While in the Tortugas we did video a few isolated colonies of bleached coral
> (various species) and some corals that were simply mottled with varying degrees
> of bleaching. All-in-all, the bleaching was minor considering how warm the
> water was where our divers were diving (29-30 c).
>
> I think we have escaped another year in the Florida Keys without bleaching and
> that is great news. We have never had a mass bleaching event start after the
> end of the first week of August, except for 1998 when we had back-to-back coral
> bleaching events from 1997-98. That was the first time in recent history that
> back-to-back massive bleaching had occurred in the Florida Keys and the corals
> never really recovered from the 1997 bleaching, so they bleached much earlier in
> the spring of 1998.
>
> We are starting to get early cold fronts into north and central Florida and we
> have had Hurricane Charley churn through the Straits ... so I am keeping my
> fingers crossed that we have made it through 2004 without mass bleaching in the
> Florida Keys.
>
> Keep up the great work. Your reports of hot spots helps us direct our responses
> in the field. As we combine your remote data with our in situ observations, our
> success at predicting mass bleaching events will improve considerably. Cheers,
> Billy
>
> Gang Liu wrote:
>
> > Gulf of Mexico Region Potential Bleaching Event - "Heads up"
> >
> > This summer has turned out to be a hot summer for the Gulf of Mexico.
> > Anomalously high water temperatures have been developing in the Gulf
> > since early July with the intensity of the anomaly increasing over time
> > over most of the Gulf.
> > http://www.osdpd.noaa.gov/PSB/EPS/SST/data/hotspotwnc.gif
> > http://www.osdpd.noaa.gov/PSB/EPS/SST/data/hotspotw.8.3.2004.gif
> > http://www.osdpd.noaa.gov/PSB/EPS/SST/climohot.html
> >
> > The northern and eastern parts of the gulf are experiencing the most
> > intense thermal stress. These are where the Flower Garden Banks National
> > Marine Sanctuary and Florida Keys National Marine Sanctuary are located,
> > respectively. Coral Reef Watch's satellite monitoring shows that the
> > accumulated thermal stress has reached up to 3 DHWs in a large area in
> > the northern gulf around Flower Garden Banks and 4 DHWs in a large area
> > in the southeastern gulf around Florida Keys.
> > http://www.osdpd.noaa.gov/PSB/EPS/SST/data2/dhwa.8.3.2004.gif
> > http://www.osdpd.noaa.gov/PSB/EPS/SST/dhw_retro.html
> >
> > The most current satellite sea surface temperature time series at a
> > pixel near Sombrero Reef, Florida shows the increasing temperature:
> > http://coralreefwatch.noaa.gov/satellite/current/sst_series_sombrero_cur.html
> >
> > If these thermal stresses persist, coral bleaching is expected in these
> > areas.
> >
> > For more information please visit Coral Reef Watch's satellite bleaching
> > monitoring website:
> > http://coralreefwatch.noaa.gov/satellite
> >
> > --------------------------------------------------
> >
> > Any feedback you can provide is useful: both bleaching and non-bleaching
> > observations are welcome. Please send the feedback to Alan Strong
> > (Alan.E.Strong at noaa.gov) and/or Gang Liu (Gang.Liu at noaa.gov). Users are
> > also encouraged to use the NOAA/ReefBase collaborative online bleaching
> > report form to send input to our bleaching database. The form is
> > available at http://www.reefbase.org/input/bleachingreport/index.asp
> >
> > -------------------------------------------------
> > August 4, 2004
> >
> > NOAA Coral Reef Watch Program
> > (coralreefwatch.noaa.gov)
> >
> > =========================================
> > Gang Liu, Ph.D.
> > Senior Research Scientist/Oceanographer
> > (STG, Inc.)
> > NOAA Coral Reef Watch Program
> > NOAA/NESDIS/ORA E/RA31
> > SSMC1, #5310
> > 1335 East-West Highway
> > Silver Spring, MD 20910-3226
> >
> > Tel: 301-713-9386 ext 131
> > Fax: 301-713-3136
> > Email: Gang.Liu at noaa.gov
> > =========================================
> >
> > _______________________________________________
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> > Coral-List at coral.aoml.noaa.gov
> > http://coral.aoml.noaa.gov/mailman/listinfo/coral-list
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> .
>
> Zahirul Islam
> MarineLife Alliance
> Holding #16, South Chartha
> Comilla 3500
> Bangladesh
> Email: marinelife_al at yahoo.com, sturcnet at hotmail.com
>
>
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--
**** <>< ******* <>< ******* <>< ******* <>< *******
Alan E. Strong
Branch Chief, Marine Ecosystem and Climate Branch (MECB)
Coral Reef Watch & CREIOS Project Coordinator
Phys Scientist/Oceanographer
NOAA/NESDIS/ORA/SO -- E/RA3 {formerly NOAA/NESDIS/ORA/ORAD}
NOAA Science Center -- RM 601
5200 Auth Road
Camp Springs, MD 20746-4304
Alan.E.Strong at noaa.gov
301-763-8102 x170 [Tues-Thurs]
301-713-9384 x108 [Mon & Fri]
(SSMC1 - RM 5304; Silver Spring, MD)
FAX: 301-763-8572
http://orbit-net.nesdis.noaa.gov/orad
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