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Jackson2013-Status and Trendsof Caribbean Coral Reefs

Jackson2013-Status and Trendsof Caribbean Coral Reefs.pdf

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IMPLICATIONS FOR MANAGEMENT<br />

The results of this study contradict much<br />

of the conventional wisdom about the<br />

importance of ocean warming, disease, <strong>and</strong><br />

hurricanes on coral reefs <strong>and</strong> emphasize the<br />

critical importance of historical perspective<br />

for coral reef management <strong>and</strong> conservation.<br />

The threats of climate change <strong>and</strong> ocean<br />

acidification loom ominously for the future,<br />

but overfishing <strong>and</strong> the resulting increase in<br />

macroalgae have been the major drivers of<br />

the catastrophic decline of <strong>Caribbean</strong> reefs<br />

up until today.<br />

What this means is that smart decisions<br />

<strong>and</strong> actions on a local basis can make an<br />

enormous difference for the wellbeing of<br />

corals reefs <strong>and</strong> the people <strong>and</strong> enterprises<br />

that depend upon them. Thus, three major<br />

recommendations emerge from this report:<br />

1. Ban all trap fishing, spearfishing <strong>and</strong> any<br />

other fishing of parrotfish in coral reefs<br />

<strong>and</strong> adjacent environments <strong>and</strong> provide<br />

dignified alternative livelihoods for the<br />

fishers affected.<br />

2. Simplify <strong>and</strong> st<strong>and</strong>ardize monitoring of<br />

<strong>Caribbean</strong> reefs <strong>and</strong> make the results<br />

available on an annual basis to facilitate<br />

adaptive management.<br />

A very small number of key variables would<br />

suffice including: percent cover of corals <strong>and</strong><br />

macroalgae, biomass of large parrotfish <strong>and</strong><br />

abundance of Diadema , coral recruitment<br />

measured as the density of small colonies <<br />

40 mm, incidence of coral disease, <strong>and</strong> water<br />

transparency measured by a secchi disk.<br />

3. Foster communication <strong>and</strong> exchange of<br />

information so that local managers can<br />

benefit from the experiences of others<br />

elsewhere.<br />

STATUS AND TRENDS OF CARIBBEAN CORAL REEFS: 1969-2012<br />

17

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