News, opinions, photos and facts from Ocean Conservancy
About Sarah Cooley
Sarah Cooley, Ph.D. is the Director of the Ocean Acidification Program at Ocean Conservancy. She is particularly interested in how global ocean changes like ocean acidification affect human communities, and she works to bring cutting-edge science into policy making.
How often have you gotten information you can really use from a friend, neighbor or family member? The kind that makes you say, “Ohhhhh…. That is SO helpful!” The key to these “aha moments” is often simply being well-connected with others having the same experience.
You may have heard coral reefs called “the rainforests of the sea,” but did you know they could also be called the “speed bumps of the ocean?” Not only do coral reefs host an estimated 25% of ocean species, but they also slow down and shrink waves that approach land. This keeps hundreds of millions of people safe and dry around the world. At the same time, coral reefs also offer these coastal dwellers many opportunities—for nutrition, their livelihoods and income based on coral reef-area fishing or tourism.
What happens when feisty, tough Dungeness crabs meet an even tougher bunch of fishermen? We’ll find out this fall in Discovery Channel’s new series, Dungeon Cove. The show highlights how the Newport, Oregon Dungeness crab fleet and the local community handle the dangers, victories and worries of the fishing season.
It’s clear that Dungeness fishing isn’t for the weak. Not only are the crabs often hard to find, hiding cleverly from fishermen or avoiding cunningly placed traps, but the working conditions are also dangerous. Simply exiting the Newport harbor is difficult at times, when wind and sea state cause waves to pile up and challenge the best helmsmen. Family members on land worry about their seagoing loved ones every day. Layer physical danger on top of economic concerns—many Dungeness fishermen are owner-operators, or essentially small business owners—and you have one tough job.
This week we’re celebrating all things coral! It’s no secret that coral reefs are spectacular ecosystems, but we wanted to do a deep dive into what exactly makes corals so special. Check out nine ways corals are even cooler than you thought:
1) Corals are like speed bumps. They slow down waves and lessen wave energy. This protects coastlines from hurricanes, cyclones and tsunamis. Coral reefs protect the shoreline in 81 countries around the world, sheltering the 200 million people living along those coasts.
Reef-building corals find refuge from climate change in mangrove habitats. Photo credit: Caroline Rogers, USGS.
Dr. KimberlyYates will be a panelist at an ocean acidification roundtable we are hosting in Miami this week. There, she will join other scientists, Florida elected officials and local businesspeople in discussing what ocean acidification has in store for Florida’s marine life and its coastal communities. Follow the meeting on Twitter via #FL_OA on Friday, June 17!
OC: Your research focuses on several marine habitats in Florida: coral reefs, estuaries and mangroves. How are they coping with ocean acidification?
Dr. Yates: Most of what we know about how ocean acidification is affecting these environments comes from experimental research. We know some marine organisms will be negatively impacted, and some may benefit. For example, some species that form their skeletons and shells from minerals made of calcium carbonate, like corals and some shellfish, are negatively impacted. Ocean acidification slows the rate at which they grow their skeletons and shells, and can also cause calcium carbonate minerals to dissolve.
Other species like seagrasses and some marine algae benefit from ocean acidification because it increases their growth rates. Coral reefs have been degrading rapidly over the past few decades, and recent research shows that some reefs in the Florida Keys are beginning to dissolve during certain times of the year from ocean acidification…which was not expected to happen for another few decades. Estuaries and mangrove wetlands support many species of shellfish, and ocean acidification may negatively impact those species and the economies that depend on shell fisheries. We are still learning about how changes caused by ocean acidification are impacting these habitats.
San Franciso Bay Area Dungeness crabber Captain John Mellor
“We’re like the Giants. We’re your hometown team,” said Captain John Mellor last week as he described the San Francisco Bay Dungeness crab fishing fleet. Capt. Mellor’s pride in his work as a crabber is paired with a love for what he does. But, his feelings are mixed with fear for the future. A West-Coast wide toxic algae bloom shut down the fishery last year, leaving him out of work for five months. Fishermen and researchers are also worried that ocean acidification could represent a looming threat to the fishery that could cause future fishing disruptions.
2016 hasn’t been a good year for the West Coast Dungeness crab fishery. The fishing season that typically spans the winter months – worth $212 million in 2014 – got significantly delayed this year when Dungeness crabs tested high for domoic acid, which sickens humans, and managers shut down the fishery. The crabs had fed heartily on a giant toxic bloom of Pseudonitschia algae, which produce domoic acid, and which were thriving in an unusually warm body of water stalled offshore, affectionately called “the blob.” The bloom also shut down other West Coast shellfish fisheries, too. The lost harvests equal lost income for West Coast communities. San Francisco Bay Area crabber John Mellor says, “If crabs were to disappear from the picture, I think it would be the end of my fishing career at this point.”