Saving Seafood

The Impacts of Ghost Nets on Coral Reefs

September 28, 2020 — The following was released by NOAA Fisheries:

Ghost nets are silently drifting through the Northwestern Hawaiian Islands, snagging on coral reefs and entangling wildlife. Scientists in the Pacific Islands have observed ghost nets tumbling across expansive coral reef environments. They break, shade, and abrade coral, preventing them from healthy growth. These lost or abandoned fishing nets are a persistent threat that accumulate over time, but we know little about the damage nets inflict upon corals.

In 2018, our marine debris team quantified the damaging effects of ghost nets on coral reefs of the Northwestern Hawaiian Islands for the first time. They found that regardless of net size or algae growth, corals were lost. They recently published their findings in Marine Pollution Bulletin.

The Northwestern Hawaiian Islands stretch for more than 1,243 miles northwest of the main Hawaiian Islands. They contain 124 mostly uninhabited small islands, atolls, reefs, and submerged banks. They are recognized as a UNESCO World Heritage Site and are encompassed by the Papahānaumokuākea Marine National Monument. Within these protected waters, far from human inhabitants, ghost nets are leaving their mark on reefs. But how much of an impact are these nets having on corals?

Read full release here

Deep beneath the high seas, researchers find rich coral oases

September 15, 2020 — Aiming to bolster conservation on the high seas, a team of marine researchers today released the first comprehensive survey of coral reefs in the high seas–the roughly two-thirds of the ocean outside of national jurisdictions.

After combing through more than half a million observations of reef-building corals, the team identified 116 reefs located in the high seas. Most of these corals live between 200 and 1200 meters beneath the surface, the researchers found. But a handful are found more than 2 kilometers deep. And there are likely many more high seas corals still to be found, the authors note, as surveys have typically prioritized corals close to shore.

The study coincides with the launch of the Coral Reefs on the High Seas Coalition, a group of scientists and nonprofits that aims to support research cruises to survey the steep, deep-water slopes where many of the reefs sit. Eventually, the coalition hopes the data will help persuade policymakers to give these poorly understood ecosystems greater protection in global agreements currently under negotiation.

“Some of the first marine protected areas were specifically designed around coral reefs. … So much literature suggests these are the rainforests of the seas,” says co-author Daniel Wagner, the coalition’s coordinator and an ocean technical adviser at Conservation International. The coalition of nonprofits hopes to influence implementation of a United Nations pact, the Intergovernmental Conference on Marine Biodiversity of Areas Beyond National Jurisdiction, which is expected to set rules for establishing marine preserves on the high seas. (A final meeting of the negotiators set for earlier this year was postponed because of the COVID-19 pandemic.)

Read the full story at Science Magazine

Sharks are “functionally extinct” from many of the world’s reefs, new global survey finds

July 28, 2020 — Sharks are absent on many of the world’s coral reefs, suggesting that they are “too rare to fulfill their normal role in the ecosystem, and have become ‘functionally extinct,’” according to a new landmark study.

Conducted by Global FinPrint and published in the journal Nature, the study involved surveying 371 reefs in 58 countries. Sharks were not found on nearly 20 percent of reefs, “indicating a widespread decline that has gone undocumented on this scale until now,” Global FinPrint said in a press release.

Read the full story at Seafood Source

Feds Agree to Consider Protections for Hawaii’s Cauliflower Coral

March 5, 2020 — The Trump administration agreed Wednesday to determine by this summer whether it will extend federal wildlife protections to Hawaii’s cauliflower coral reef.

The agreement, filed in federal court in Honolulu, comes after the Center for Biological Diversity sued claiming the National Marine Fisheries Service fails to protect the coral under the Endangered Species Act.

In its federal complaint, the conservation group said Hawaii’s cauliflower coral has been devastated by ocean warming.

Warming oceans have caused widespread bleaching of the coral, whose populations declined by 36% between 1999 and 2012, according to the conservation group. A global coral-bleaching between 2014 and 2017 killed millions of coral on hundreds of reefs from Hawaii to the Great Barrier Reef off the coast of Australia.

Read the full story at the Courthouse News Service

NOAA Researchers Study How Fish Use Artificial Reefs

January 8, 2020 — Shipwrecks and rocky reefs off the coast of North Carolina are home to many commercially and recreationally important fish species. Scientists with NOAA’s National Centers for Coastal Ocean Science are researching how and when fish use these artificial and natural reefs. In the fall of 2019, aboard the NOAA ship Nancy Foster, the researchers used advanced technology to study how these reefs function as habitat.

The team used two kinds of sonar to survey the bottom and look for fish. The Foster’s multibeam echosounder registered the depth and physical properties of the reefs. Her splitbeam echosounder provided imaging that helps identify the size of fish and the location of the fish relative to the reefs.

Sonar gave the team the big picture, and NOAA divers also collected thousands of photos along the reefs. Using photogrammetry software, the team is stitching the photos together into three-dimensional models, which will provide detailed pictures of the reef structures and the plants and animals living on them.

Read the full story at The Maritime Executive

Runaway warming could sink fishing and reef tourism, researchers warn

December 9, 2019 — Countries from Egypt to Mexico could lose 95% of their income from coral reef tourism, and parts of West Africa could see their ocean fisheries decline by 85% by the turn of the century if planet-warming emissions continue to rise, oceans experts warned Friday.

“Action in reducing emissions really needs to be taken, or we will be facing very important impacts” on oceans and people, said Elena Ojea, one of the authors of a new paper looking at the potential impacts of climate change on ocean economies.

The study, released at the U.N. climate negotiations in Madrid, was commissioned by the leaders of 14 countries with ocean-dependent economies, and looked at ocean fisheries and seafood cultivation industries, and coral reef tourism.

It found that reef tourism, a nearly $36-billion-a-year industry today, could see more than 90% losses globally by 2100 under a high-emissions scenario.

Countries particularly dependent on coral reef tourism – Egypt, Indonesia, Mexico, Thailand and Australia – could see income cut by 95%, the paper noted.

Ove Hoegh-Guldberg, an ocean expert at Australia’s University of Queensland and one of paper’s authors, said his country’s Great Barrier Reef tourism industry – worth billions a year a year – was already seeing losses as corals bleached and died.

Read the full story at Reuters

Even baby fish are eating plastics, Hawaii study finds

November 12, 2019 — Recent evidence has shown that adult fish are eating plastics in the ocean and suffering from perils such as malnutrition and toxicant buildup.

Now, for the first time, a study conducted in Hawaii shows baby fish are ingesting tiny plastics, too.

The research, published today in the journal Proceedings of the National Academy of Sciences, found that both young coral reef fish and open-ocean species are consuming plastic as early as days after they are spawned.

Working in the waters off West Hawaii, an international team of researchers focused on surface slicks — naturally occurring ribbons of smooth water at the ocean surface that are formed when underwater waves converge near coastlines, according to a NOAA news release. These biologically rich ribbons of water aren’t always visible to the eye but are commonly seen, especially if wind conditions are right.

Found in coastal waters around the world, the surface slicks accumulate high concentrations of plankton, a key food source that lures larval fish in huge numbers. These watery nurseries harbor an impressive variety of species from a range of habitats, ranging from the deep ocean waters to shallow-water reefs.

Read the full story at The Honolulu Star Advertiser

Rep. Joe Cunningham: A healthy ocean in 2050? We need to act now.

November 8, 2019 — The ocean is the lifeblood of our planet. It covers three quarters of the globe, produces more than half our oxygen, supports a wide range of marine fisheries that feed the planet, and absorbs 30 percent of the carbon dioxide we emit and 90 percent of the heat caused by those emissions.

In short, the ocean plays a critical role in our lives and livelihoods. And it’s just as critical that we do everything we can to protect it.

By 2050, the global population is expected to reach 9.7 billion people. While the projections regarding the impact that this population and their actions and emissions will have on the ocean may vary, none of them are good. Without definitive action now, scientists predict that by 2050:

• World fish stocks will be driven to collapse;
• Average sea levels will rise by 30-34 centimeters, increasing coastal erosion and exacerbating storms, flooding cities and coastal communities like Charleston;
• The ocean is expected to contain more plastics than fish (by weight); and
• The world’s coral reefs will be wiped out, increasing threats to coastal communities from storm surges and a loss of fish stocks that rely on corals for survival.

Read the full story at The Charleston City Paper

Trump Sued For Failing To Protect Hawaii’s Cauliflower Coral

October 11, 2019 — The Center for Biological Diversity said Thursday that it is suing the Trump administration for failing to protect cauliflower coral around the Hawaiian Islands.

“The bushy, shallow-water coral species has been devastated by ocean warming triggered by human-caused climate change,” according to a press release.

The warming is due to a “marine heat wave … now hitting Hawaii’s coral reefs hard, and researchers predict massive coral bleaching and death.”

The coral species is estimated to have declined by 36% from 1999 to 2012, and conditions are expected to worsen.

“Cauliflower coral is like the canary in the coal mine of our warming oceans. Marine life around Hawaii will suffer without bold actions to protect coral reefs,” said Maxx Phillips, the center’s Hawaii director. “Hawaii’s coral reefs are dying and they need our help. Letting colorful corals bleach white and die indicates an ocean becoming less bountiful and biodiverse.”

Read the full story at the Honolulu Civil Beat

Rubio, Schatz, Scott, Hirono Introduce Bill to Restore and Conserve America’s Coral Reefs

August 2, 2019 — The following was released by The Office of Senator Marco Rubio (R-FL):

This week, U.S. Senators Marco Rubio (R-FL), Brian Schatz (D-HI), Rick Scott (R-FL), and Mazie Hirono (D-HI) and Representatives Darren Soto (D-FL) and Jenniffer González-Colón (R-PR) introduced the Restoring Resilient Reefs Act of 2019, bipartisan and bicameral legislation that would reauthorize and modernize the Coral Reef Conservation Act of 2000. The Coral Reef Conservation Act, which expired 15 years ago, was designed to promote the conservation of our nation’s reefs. The Restoring Resilient Reefs Act authorizes five years of directed federal funding and technical assistance to states for the restoration and management of coral reef ecosystems, encourages innovative new Coral Reef Stewardship Partnerships among resource management agencies, research centers, and community stakeholders, and codifies and updates the U.S. Coral Reef Task Force.

Additional original cosponsors of the House bill include Representatives Charlie Crist (D-FL), Brian Mast (R-FL), Stephanie Murphy (D-FL), Amata Coleman Radewagen (R-AS), and Tulsi Gabbard (D-HI). A summary of the bill is available here and a section by section is available here.

“I saw the devastated condition of our coral reefs firsthand when touring the Florida Keys National Marine Sanctuary in February, and I promised a comprehensive response,” Rubio said. “This important bipartisan bill will ensure federal agencies are partnering effectively with state and local governments, as well as the communities who rely on the vitality of these critical habitats. Florida’s Reef Tract is an integral component of the economic and ecological character of Florida, and the Restoring Resilient Reefs Act of 2019 will ensure future generations will be able to enjoy this natural wonder.”

“From never-before-seen levels of bleaching in the Pacific, to unprecedented devastation from disease in the Atlantic, coral reefs need urgent help. Our bill gives local governments and communities the federal resources to help save Hawaii’s corals,” Schatz said.

“People from across the world come to Florida because of the state’s natural beauty. During my eight years as Governor, Florida’s annual investments to preserve the environment increased by $1 billion to make sure future generations can enjoy all that Florida has to offer. Today, I’m proud to join Senator Rubio, Senator Schatz, Senator Hirono and our colleagues in the House to introduce the Restoring Resilient Reefs Act of 2019, which will build on our efforts and help restore and protect our coral reef ecosystems,” Scott said.

“Coral reefs provide essential ecosystem services to not only our oceans, but also to our island and coastal communities. The long-term ecological and economic impacts of coral bleaching pose serious threats to our way of life,” Hirono said. “The Restoring Resilient Reefs Act would provide important tools to preserve and sustain the condition of our coral reef ecosystems through community-based management programs. Our bill is a step in the right direction to ensuring that communities that depend on healthy oceans, like those in Hawaii, have the resources they need for protecting coral reefs.”

Read the full release here