Newspaper article The Christian Science Monitor

Scientific Study Shows Resilience among Fragile Coral Reefs

Newspaper article The Christian Science Monitor

Scientific Study Shows Resilience among Fragile Coral Reefs

Article excerpt

Coral reefs have been in decline for decades, but researchers have found evidence that some Pacific reef communities are thriving.

Scientists conducting a 10-year, 56-island survey on coral reefs have found isolated reefs that appear to be surviving the environmental stressors which have been damaging most others, showing signs of resilience and even recovery.

The long-term health of coral reefs has been a focus and concern of researchers for years. Previous studies found that coral growth rates decreased 40 percent over the past three decades. More recent studies offer that the dire predictions for the global health of coral reefs have now come to pass.

But what are scientists seeing that is offering hope against this downward spiral of coral reefs?

"Going to these uninhabited locations, you can still find reefs that look the way they did 1,000 years ago," said Jennifer Smith, ecologist and the lead author of the 10-year study, to The Washington Post

Ms. Smith's team set out to study how coral reefs were affected by climate change and the intensity of the 1998 El Nino weather patterns, which damaged many coral reefs. The study was published in the scientific journal Proceedings of the Royal Society B in March.

Much of the study's findings confirmed the grim reality found by other marine biologists: coral reefs were subject to mass bleaching (a process where a stressed reef expels symbiotic algae), contained less diverse fish life, and were overall less "healthy."

But Smith's team also found isolated reefs that appeared to be recovering. Reefs that are growing off of uninhabited islands and sheltered from the added stress of human-driven problems, such as overfishing, showed healthy levels of coral and algae growth.

"These results suggest that, in the absence of local human impacts, reefs may be more resistant or resilient to global change and provide incentive for local management action on more populated islands," the study states. …

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