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Coral-list: 2015 Mesoamerican Reef Report Card available

Melanie McField mcfield@healthyreefs.org via coral.aoml.noaa.gov

The Healthy Reefs for Healthy People Initiative (HRI) recently released its
2015 Report Card for the Mesoamerican Reef, recording an improvement in
reef health for this important reef system encompassing 248 study sites
across the 100 km of coast in Mexico, Belize, Guatemala and Honduras. You
can download the report from and view a 5 min video version right from our
homepage: *www.healthyreefs.org *

The simultaneous launch events in the 4 MAR countries garnered over 70
media stories and celebrated important conservation wins, such as the full
protection of parrotfish in Guatemala (jointing Belize and the Bay Islands
of Honduras in their previous full protection of these key herbivores). In
the next couple of weeks we will launch the full database behind this
report, also from our website. Thanks to the 65 partner organizations that
comprise this collaborative effort!

Major findings include:

– The overall 2015 MAR Reef Health Index score was ‘fair’ (2.8), on a
scale of ‘critical’ (1) to ‘very good’ (5), with encouraging improvements
over the last report.

– Corals – the architects of the reef – have improved since 2006,
increasing from 10%-16% cover; although fleshy macroalgae, the main
competitors with corals for open reef space, have also increased.

– Commercial fish have increased in biomass – an important success –
although large groupers are quite rare (only 4% of the 700 groupers counted
were >40cm long) and are mainly found in fully protected zones of marine
protected areas (MPAs).

– Fully protected areas had 10 times more snapper and grouper biomass
than those within general use areas of designated MPAs or reefs with no
protection. Collaborative efforts to rebuild fish populations through
replenishment (=fully protected) areas are working.

Melanie McField, PhD
Director, Healthy Reefs for Healthy People Initiative, Smithsonian Institution
1648 NE 47th St, Ft Lauderdale FL 33334
Cell: 754 610 9311 Tel: 954 990 8842
email: mcfield@healthyreefs.org
www.healthyreefs.org

Join the International Society for Reef Studies
www.fit.edu/isrs/
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AAAS: Great Barrier Reef keeps World Heritage Site Status

http://news.sciencemag.org/asiapacific/2015/06/great-barrier-reef-keeps-world-heritage-site-status?utm_campaign=email-news-latest&utm_src=email

ScienceInsider–Breaking news and analysis from the world of science policy

By Leigh Dayton 1 June 2015 11:00 am 2 Comments

SYDNEY, AUSTRALIA—A threat by a key U.N. agency to list Australia’s Great Barrier Reef (GBR) as “in danger” has been averted—for now. A draft decision announced on 29 May by a working group of the United Nations Organization for Education, Science and Culture’s World Heritage Committee allows the GBR to keep its current World Heritage Area status but requires Australia to report on progress to safeguard the iconic reef from further decline by 1 December 2016. If “anticipated progress” is not demonstrated, an “in danger” listing will be reconsidered in 2017. Australia will also have to report in 2020 on whether the nation’s Reef 2050 Long-Term Sustainability Plan is meeting its targets.

Demonstrating progress by the end of next year is “a real challenge given the enormity of the reef and the short time-line,” says Terry Hughes, director of the ARC Centre of Excellence for Coral Reef Studies in Townsville. He is critical of the Reef 2050 plan. When it was released in March, he told ScienceInsider it “virtually ignores climate change.”

The World Heritage Committee working group “notes with concern” that the overall outlook for the reef is “poor,” and that climate change, poor water quality, and impacts from coastal development are major threats to its health and have been degrading key habitats, species, and ecosystem processes in the central and southern inshore areas.

The draft decision will be approved—or amended—by the full committee when it meets in Bonn, Germany, later this month. The Australian government lobbied hard to avoid an embarrassing “in danger” listing—spending an estimated AU$76,500 visiting the committee’s 21 delegations in their home countries. That is no guarantee members will accept the draft or the government’s assurances. In recent years, the committee has often amended draft decisions.

Scientists and environmental groups remain skeptical about governmental promises. They argue that the government’s pledge of AU$1.53 billion over 10 years is insufficient to meet its planned targets, and point to state and federal support for development of a complex of coal mines in central Queensland, including the world’s largest thermal coal project. Hughes notes that the “unprecedented expansion” of mines and ports will see the number of coal ships crossing the GBR grow from 1600 in 2012 to more than 4000 by 2020. Greenpeace says the draft decision should not be viewed as a reprieve, calling it in a statement “a big red flag.”

Coral-List: Coral Morphologic presents “The Endangered Elkhorn Corals of Fisher Island & Miami’s Deep Dredge (Part 1 of 3)”

May 26

With so many dredge projects being proposed on reefs around the world, here
is another reminder of just how negative the impact can be.

The massive Army Corps of Engineers’ Deep Dredge of Port Miami has now been
ongoing for 18 months nearly non-stop (with several more to go). Not only
have the Army Corps failed to transplant a large number of
federally-protected staghorn corals (*Acropora cervicornis*) living within
the offshore dredging area, they have also produced copious amounts of silt
that has smothered acres of adjacent reef area outside where they claimed
would be impacted. We have documented multiple corals having been
improperly transplanted by their paid contractors, in some cases not even
bothering to use adhesive to reattach them. In other cases, corals that
were transplanted still wound up smothered to death due to their horizontal
attachment on boulders which collects falling silt on their tissue and
doesn’t allow for easy sloughing off.

After our most recent health survey of several highly unusual elkhorn
corals (*Acropora palmata*) living on a coastal seawall along Fisher
Island’s marina here in Miami, we have decided to bring their plight
public. While staghorn is not particularly uncommon offshore Miami, elkhorn
is so extremely rare that is almost absent. It is quite possible that these
are the most ‘coastal’ of all of Florida’s elkhorn colonies… they are
literally growing along the shoreline in knee-deep water adjacent to a
marina and a wastewater treatment plant. The fact that they have persisted
for so long in man-made urban habitat is a testament to their resilience.
However, it is clear that over the past year and half of dredging, the
health of these colonies has declined precipitously. Coral Morphologic
proposes that these elkhorn corals, which are receiving the full brunt of
siltation stress, should be given special protection to ensure their
survival before the summer heat adds to their stress. Given that there are
multiple independent elkhorn branches as a result of past white pox die-off
(that caused them to become discontinuous sub-colonies), we propose that
they are ideal for in-situ mariculture in a coastal coral nursery here in
Miami where they can be carefully propagated into large enough numbers for
subsequent laboratory research and local reef restoration.

Video of the elkhorn coral and improperly transplanted corals on Fisher
Island can be found here:

http://coralmorphologic.com/b/2015/05/21/fisher-island-corals-the-saga-of-the-deep-dredge-part-1-of-3

Stay tuned for Part 2 follows up with the fate of two different hybrid
fused-staghorn (*Acropora prolifera*) corals living alongside the elkhorn
corals on Fisher Island.

Cheers,
Colin Foord
Coral Morphologic coralmorphologic@gmail.com via coral.aoml.noaa.gov

Coral-list: Jeffrey Maynard announces Nature Climate Change publication “Projections of Climate Conditions that increase coral disease susceptibility and pathogen abundance and virulence.”

We’d like to bring your attention to a paper recently published in *Nature
Climate Change *titled: *Projections of climate conditions that increase
coral disease susceptibility and pathogen abundance and virulence. *

We present and compare climate model projections of temperature conditions
that will increase coral susceptibility to disease, pathogen abundance and
pathogen virulence under both moderate (RCP 4.5) and fossil fuel aggressive
(RCP 8.5) emissions scenarios. We also compare projections for the onset of
disease-conducive conditions and severe annual coral bleaching, and produce
a disease risk summary that combines climate stress with stress caused by
local human activities.

Some highlight results:

1. Disease is as likely to cause coral mortality as bleaching in the coming
decades. As evidence of this, at 96% of reef locations at least 2 of the 3
temperature conditions examined occur before annual severe coral bleaching
is projected to occur.

2. There are areas that meet 2 or all 3 of the temperature conditions
examined and have high or very high anthropogenic stress. These
are priority locations for reducing stress caused by local human activities
and testing management interventions to reduce disease impacts.

3. The emissions scenarios RCP8.5 and 4.5 take time to diverge and there is
little difference between the scenarios for the timing of the various
disease-promoting conditions being met. This is further evidence that
reducing stress caused by local human activities will be critically
important to reducing disease impacts in the coming decades.

The role of disease as a significant driver of future reef community
composition is under-appreciated, especially in the Indo-Pacific. Our paper
strongly suggests disease needs to be given greater consideration in
management planning. Further, we need to develop more early warning tools
for disease similar to the few already developed and the tools available
for monitoring bleaching risk from NOAA Coral Reef Watch.

The article can be accessed from the front page here:

http://www.nature.com/nclimate/journal/vaop/ncurrent/full/nclimate2625.html

A short story about the article:

http://www.news.cornell.edu/stories/2015/05/scientists-expect-more-coral-disease-under-climate-change

Our author team: Jeff Maynard, Ruben van Hooidonk, Mark Eakin, Marjetta
Puotinen, Melissa Garren, Gareth Williams, Scott Heron, Joleah Lamb,
Ernesto Weil, Bette Willis, and Drew Harvell.

*Funders: NOAA Climate Program Office and US National Science Foundation.


Jeffrey A. Maynard
Research Faculty – Dept of Ecology and Evolutionary Biology, Cornell
University
Research Scientist – CRIOBE & EPHE/CNRS of Moorea, Polynesia and Paris,
France.
Manager – Marine Applied Research Center, North Carolina.
P (mobile): +1 (910) 616-1096
E: maynardmarine@gmail.com
Skype: jefmaynard
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