Tag Archives: Coral Reef

Key West bans some sunscreens to protect coral reefs


Photograph: © SAF — Coastal Care

Excerpts;

Officials in Key West, the popular Florida holiday destination, have decided to ban the sale of sunscreens containing certain chemicals blamed for harming the only living coral reef found in the continental US.

The Key West city commission voted 6-1 on Tuesday to ban the sale of sunscreens containing oxybenzone and octinoxate within the island city…

Read Full Article; Guardian UK (02-07-2019)

Conserving Canada’s Diverse Marine Life


Photograph: © SAF — Coastal Care

Excerpts;

Despite the deep, cold waters, newly discovered undersea mountains off Canada’s west coast are home to a rich diversity of life.

“When we reached a seamount (undersea mountain), it was often like we were entering a forest, only of red tree corals and vase-shaped glass sponges,” said Robert Rangeley, Science Director, Oceana Canada. “These areas were filled with a diversity of other animals including anemones, feather stars, octopuses, lobsters and rockfishes,” said Rangely who led the expedition in July.

Oceana, a marine conservation organisation, along with the Haida Nation, an indigenous people, the Federal government department of Fisheries and Oceans Canada, and Ocean Networks Canada were partners in the first in-depth investigation of the recently designated Offshore Pacific Area of Interest. This is a 140,000 square kilometre region 100 to 200 kilometres west of Vancouver Island in the province of British Columbia…

Read Full Article; IPS News (12-05-2018)

Managing wastewater to support coral reef health, resilience


Photograph: © SAF – Coastal Care

Excerpts;

Coral reefs provide food and livelihoods for hundreds of millions of people around the world, support more than a quarter of all marine life, and protect communities and coastlines from natural disasters—and if urgent action is not taken, we risk losing them forever.

The spectacular marine diversity that corals offer has attracted snorkelers, divers and film-makers for decades, but these awe-inspiring ecosystems are now in serious trouble.

The alarming state of coral reefs around the world has been well-documented in the past few years. Climate change, ocean acidification and pollution are the main causes of coral bleaching, degradation and die-offs.

However, awareness and data on how wastewater pollution impacts coral reefs remain limited in most reef regions.

“For years, oceans have been used as dumping grounds for many types of waste, including sewage, industrial waste, chemicals and litter,” says head of UN Environment’s coral reef unit Jerker Tamelander. “More than 80 per cent of marine pollution originates from land, including wastewater, sediment and nutrients delivered via waterways.”

A 2017 brief Wastewater Pollution on Coral Reefs compiled by UN Environment through the Global Coral Reef Partnership and the Global Wastewater Initiative and in collaboration with Coasts Climate Oceans, says coral exposed to excess nutrients, turbidity, sedimentation, pathogens or chemical pollutants is more susceptible to thermal stress and less able to survive a coral bleaching event…

Read Full Article; UNEP (11-27-2018)

Study tracks severe bleaching events on a Pacific coral reef over past century


Photograph: © SAF – Coastal Care

Excerpts;

As climate change causes ocean temperatures to rise, coral reefs worldwide are experiencing mass bleaching events and die-offs. For many, this is their first encounter with extreme heat. However for some reefs in the central Pacific, heatwaves caused by El Nino are a way of life.

Exactly how these reefs deal with repeated episodes of extreme heat has been unclear. A new study from the Woods Hole Oceanographic Institution (WHOI), has uncovered the history of bleaching on a reef in the epicenter of El Nino, revealing how some corals have been able to return after facing extreme conditions.

The study was published Nov. 8, 2018, in the journal Communications Biology

Read Full Article; WHOI (11-08-2018)

Florida’s coral reefs provide window into the past; USGS (10-23-2018)

Video Captures the Violent Act of Coral Bleaching, LiveScience (08-17-2016)

Global warming is transforming the Great Barrier Reef; Science Daily (04-18-2018)
A new study shows that corals on the northern Great Barrier Reef experienced a catastrophic die-off following the extended marine heatwave of 2016…

Florida’s coral reefs provide window into the past


Photograph: © SAF — Coastal Care

Excerpts;

The Florida Keys coral reefs stopped growing or significantly slowed their growth at least 3000 years ago and have been balanced between persistence and erosion ever since, according to a new study by the U.S. Geological Survey.

The study, published in the journal Global Change Biology, also points to coral bleaching and disease outbreaks as signs that changing conditions may have recently tipped the 200-mile-long coral reef tract into a state of erosion…

Read Full Article; USGS (10-23-2018)

Back from the brink: the global effort to save coral from climate change


Photo source: Beyond Preservation: The Coral Restoration Foundation Bonaire; By Andrew Jalbert – ©

Excerpts;

Underwater nurseries offer glimmer of hope for endangered ecosystems, encouraging growth of coral fragments on fibreglass structures anchored to the seabed…

Read Full Article, Guardian UK (09-26-2018)

Ocean Conservation Is an Untapped Strategy for Fighting Climate Change; IPS News (07-06-2018)

Climate change modifies the composition of reefs


Photograph: © SAF — Coastal Care

Excerpts;

Corals devastated by climate change are being replaced naturally by other species such as gorgonians, which are less efficient in acting as a carbon sink. A study has analyzes for the first time why gorgonians are more resistant than corals to human impacts and global climate change…

Read Full Article; Science Daily (09-20-2018)

Is the Great Barrier Reef recovering from coral bleaching?


Photograph: © SAF – Coastal Care

Excerpts;

Is the Great Barrier Reef recovering from coral bleaching? A CBS Video featuring Dr Mark Aerin, Coordinator NOAA Coral Reef Watch.

Watch Video and Read Full Article; CBS News (09-12-2018)

Why the Great Barrier Reef is in danger; MNN (09-07-2018) (09-12-2018)

Video Captures the Violent Act of Coral Bleaching, LiveScience (08-17-2016)

Global warming is transforming the Great Barrier Reef; Science Daily (04-18-2018)
A new study shows that corals on the northern Great Barrier Reef experienced a catastrophic die-off following the extended marine heatwave of 2016…

Great Barrier Reef coral bleaching has started early, biologist says; Guardian UK (01-19-2018)
Warm water has already begun bleaching coral on the Great Barrier Reef, weeks ahead of the period with highest forecast risk. Satellite data suggest widespread bleaching is possible by March…

A Close-Up Look at the Catastrophic Bleaching of the Great Barrier Reef; Yale E360 (04-10-2017)
Scientists are reporting the second mass bleaching in the Great Barrier Reef in the last year. In a Yale Environment 360 interview, researcher Terry Hughes says these events have damaged two-thirds of the world’s largest coral reef and are directly caused by global warming…

Coral bleaching hits 93% of Great Barrier Reef, Video, Science Daily (04-21-2016)
Australia’s Great Barrier Reef is suffering its worst coral bleaching in recorded history with 93 percent of the World Heritage site affected, scientists say as they reveal the phenomenon is also hitting the other side of the country…

Great Barrier Reef: the scale of bleaching has the most sober scientists worried, Guardian UK (04-16-2016)
I have dived hundreds of times, with different teams of scientists, along the reef. Yet the scale of this bleaching event has even the most sober and senior coral reef scientists worried. If the rhetoric from marine biologists is to be believed, then the Great Barrier Reef is now in the grip of a “bommie apocalypse”…

Great Barrier Reef’s Unprecedented Threat From Dredging, Dumping; Guardian UK (05-07-2014)
The impact of dredging and dumping sediment on the Great Barrier Reef has been far greater than the mining industry has claimed, with nearly 150m tonnes of new dredging set to take place in the reef’s waters, a study shows…