Sentences with phrase «severe bleaching events»

Although these are future projections, scientists have seen 25 reefs experience severe bleaching events in the last three years, the most severe sequence of bleachings to date.

After suffering through the most severe bleaching event ever recorded last year, the Great Barrier Reef is once again being savaged by a marine heat wave.

The median time between pairs of severe bleaching events has also decreased, the researchers found — it's now just under six years, versus 25 to 30 years in the early 1980s.

The new study, the first global examination of reefs over the entire planet, found that of the 29 World Heritage reef areas, at least 25 will experience severe bleaching events by 2040.

In 2005, high ocean temperatures in the tropical Atlantic and Caribbean resulted in the most severe bleaching event ever recorded in the basin.

We found no significant effects from this heat stress event in skeletal extension rates in our coral cores, indicating that it did not cause as severe a bleaching event as in 2004.

However, apparently only the more severe bleaching events cause a reduction in skeletal growth rates; for instance, one study found growth anomalies in 95 % of corals from the Mesoamerican Reef related to severe bleaching in 1998, though only a single core (of 92 collected) showed an anomaly due to a less severe event in 1995 [11].

Model predicts rapid adaptation of corals despite increasingly severe bleaching events, but corals» more distant future remains uncertain.

It is important to note that no species are completely immune from bleaching - induced mortality and nearly all genera have suffered high mortality during severe bleaching events in one location or another.

Back - to - back severe bleaching events have affected two - thirds of Australia's Great Barrier Reef, new aerial surveys have found.

The median return time between pairs of severe bleaching events has diminished -LSB-...]

Australia's Great Barrier Reef is undergoing the most severe bleaching event in its history, as corals along the reef expel the symbiotic algae that provide them both with their rich colours and food.

Severe bleaching events are hitting coral reefs five times as often as in 1980, researchers report in the Jan. 5 Science.

«The big proviso is, of course, that these reefs are spared another severe bleaching event,» Berkelmans says.

A severe bleaching event struck the corals of the Rangiroa Atoll in French Polynesia in 1998, one of the strongest El Niño years (1997 — 1998) recorded.

They have proven to be more resilient than natural reefs in severe bleaching events of 2009, 2010 and 2016.

Then, less than seven months later, what he called «an unusual sea - surface temperature spike» caused another moderate to severe bleaching event.

«In 2013, we had a moderate to severe bleaching event that came out of nowhere and lasted for three months, and we lost a quarter of the coral that was impacted from the 80 percent of the coral species that bleached,» Burdick told Truthout during a recent interview on Guam.

The new study finds that 94 percent of surveyed coral reefs have experienced a severe bleaching event since the 1980s.