[Coral-List] 3. Re: Identifying bleaching resistant reef locations: is it possible?

josh.hoyles josh.hoyles at northumbria.ac.uk
Mon Apr 25 12:37:42 EDT 2016


Surely this depends on the species of Coral within the area of study? scleractinian coral is more resistant to thermal stress events due to a more rocky structure? For example on the Lighthouse and Turneffe Atolls of Belize this coral is present and has resisted certain bleaching events, (1.3% mortality due to bleaching yet over 2.5% mortality overall) however due to the dynamic environment and influence from large climatic events ie hurricanes the species of coral could in theory change in a very short amount of term due to large debris deposits? Perhaps by reducing the nutrient loads and volume there is less change of a shift in species? who knows, the complex life of a coral spawn. (I could be wrong however these are the results I found in my thesis).


Josh Hoyles

Message: 3
Date: Sun, 24 Apr 2016 15:22:56 +1000
From: Scott Wooldridge <swooldri23 at gmail.com>
Subject: Re: [Coral-List] Identifying bleaching resistant reef
        locations: is   it possible?
To: coral-list at coral.aoml.noaa.gov
        <CA+=2+WdJS9a8Ox2OmXRjxx9pEw4R6SzrwivtXpmHagbXe8=C=g at mail.gmail.com>
Content-Type: text/plain; charset=UTF-8

Hi All,

Attached is a recently completed CTRMS Technical Report which considers the
environmental factors that enhance the risk of coral bleaching in the
far-northern Great Barrier Reef. The report draws upon the findings from
the BleachRisk risk assessment framework to explain that we should not have
been surprised that these remote (formerly ?pristine?) reefs are extremely
vulnerable to thermal stress and bleaching.

The report concludes that reducing end-of-river nutrient loads by at least
50-80% in the catchments that drain into the central and southern GBR
remains the best ?local? management response for maximising the
ever-diminishing capacity of the GBR to resist thermal stress and bleaching..


Scott Wooldridge

Catchment to Reef Management Solutions, Newcastle, Australia (2280)


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