Red tide Archives - Saving Seafood

New national effort to predict, respond to algae blooms

October 16, 2019 — Harmful algae blooms that shut down fisheries and sicken people are the target of new research funding from NOAA across the nation.

NOAA’s National Centers for Coastal Ocean Science will spend $10.2 million in fiscal year 2019 to fund studies into harmful algae blooms – by now so common that they have their own shorthand name of HAB.

About $8.4 million of that will cover the first year of new 3- to 5-year projects, and $1.78 million will go to 3-year projects already in process. Funded under existing NOAA programs, new projects will begin in Alaska, California, Chesapeake Bay, Florida, the Great Lakes, New England and the Pacific Northwest.

Florida is in line for $2.9 million of that funding, which could help state planners now scrambling to improve how monitor and manage algae outbreaks. The state was hit with severe events from 2017 to 2019 when Karenia brevis, also known as red tide, occurred throughout southwest Florida. The bloom killed fish, turtles, marine mammals, and birds. It caused cases of neurotoxic shellfish poisoning in people, and even respiratory irritation in beachgoers and waterfront residents exposed to the algae.

Read the full story at National Fisherman

Florida senators back push for federal help with red tide

May 31, 2019 — Florida’s senators are pushing the Commerce Department to issue a disaster declaration over Florida’s wildlife-killing red tide.

Florida’s latest bout with red tide brought images from up and down the state’s Gulf Coast of dead fish washing ashore after being choked by a surge of oxygen-hogging algae.

“Southwest Florida’s coasts have provided an important source of opportunity for generations of families who have built their livelihoods on these productive waters,” Sens. Marco Rubio and Rick Scott, both Republicans, wrote in a Wednesday letter to Commerce Secretary Wilbur Ross. “To best support these working families in their time of need following the recent significant and persistent red tide events, we ask for your assistance in promptly fulfilling the State of Florida’s request for a federal fishery resource disaster declaration.”

Read the full story at The Hill

Red tide could wipe out a generation of stone crabs

May 28, 2019 — Red tide algae can take a toll on the future of the stone crab industry, Mote Marine Laboratory researchers discovered.

Intense concentrations of the toxic red algae potentially can wipe out a generation of stone crabs, Mote scientists reported this week.

The loss could be cataclysmic to Florida’s seafood industry. The health of stone crabs is commercially valuable to the health of Florida’s economy.

More than 105 million pounds of stone crabs were harvested between 1996-2016 and is ranked fifth by the National Marine Fisheries Service among the commercially harvested Florida seafood. Pink shrimp ranks number one. Nationwide, Florida’s seafood industry ranked 11th in the United States, producing more than 87 million pounds of seafood harvested in 2016 and with a dockside value of $237 million, Marine Fisheries reported.

Mote scientists are trying to help figure out why the stone crab catch in Southwest Florida has seen a 25 percent decrease since 2000, and trying to determine the influence of red tide could be a key.

High concentrations of Florida red tide — Karenia brevis — caused 100 percent mortality in stone crab larvae in a four-day study, Mote reported in a press release. Medium concentrations had a 30 percent mortality rate, and many of the surviving larvae had impaired swimming behavior.

Read the full story at the Englewood Sun

FLORIDA: Stone crabbers experienced crustacean frustration this season. They say red tide is to blame

May 16, 2019 — The stone crab harvest was down this year — way down — and local crabbers say it was because of red tide.

With Wednesday marking the final day of harvest for the 2018-19 season, several Cortez crabbers left their boats tied up at the dock, rather than scouting for the hard-to-find crustaceans.

“It’s been a very slow year,” said Brian Ibasfalean, production manager for A.P. Bell Fish Company Inc. “The boats are way off. (Tuesday), it was about 15 pounds of stone crab. (Wednesday), so far, nothing. It’s red tide, I’m pretty sure.”

Ibasfalean, who has crabbed most of his life, said he has seen worse years. But this year, crabbers had to sail north to Clearwater and Tarpon Springs to find waters clear of red tide.

Read the full story at The Bradenton Herald

FLORIDA: Where did all the lobsters and stone crabs go? How the fishing industry is bouncing back

December 7, 2018 — The red tide algae bloom plaguing Southwest Florida hasn’t hit the Florida Keys. And Hurricane Irma happened more than a year ago.

But they’re both affecting the island chain’s commercial fishing industry.

That’s a crucial impact because the industry is the second-largest stand-alone economic generator in the Keys next to tourism. Fishing is estimated by the Florida Keys Commercial Fishing Association to bring in about $900 million a year to the Monroe County economy. That includes transactions such as fuel sales, dockage fees, and boat and engine repairs.

Read the full story at The Miami Herald

Trump Administration Report Recommends Reducing Greenhouse Gas Emissions To Protect Oceans From Climate Change

November 27, 2018 — The Fourth National Climate Assessment is a landmark report that was published last week on the day after Thanksgiving. It summarizes the impacts of climate change in the United States as well as potential mitigation and adaptation measures. The report states that the combined effect of burning fossil fuels, developing natural landscapes, and deforestation have increased the concentration of greenhouse gases (GHGs) in Earth’s atmosphere* and emphasizes that drastically reducing GHGs is necessary to prevent the most catastrophic consequences of climate change.

According to the report, climate change is modifying the ocean environment in three primary ways: warming, oxygen loss, and acidification. These “stressors” have large implications for ocean ecosystems and marine fisheries. Globally, ocean surface temperatures have increased by nearly 1.3°F over the past century and “… more than 90% of the extra heat linked to carbon emissions is contained in the ocean.” As the ocean warms, seawater not only expands and causes sea levels to rise, but it also loses its ability to hold gases – including oxygen. Additionally, as carbon dioxide (CO2) emitted by human activities dissolves in seawater, it undergoes a series of chemical reactions that are gradually causing the ocean to become more acidic.

While warming, oxygen loss, and acidification will likely reduce the diversity of life in the sea, they will also impact fisheries, seafood farming, and recreational activities. These stressors will also interact and can have complex impacts. For example, as climate change progresses, hurricanes will become more frequent and intense. These hurricanes may redistribute nutrients that cause massive algal blooms that are sustained by warmer temperatures. When the blooms die off, microbes respire as they assist in the algae’s decomposition, simultaneously producing CO2 and consuming oxygen that cause ocean acidification and oxygen loss. The severe red tide along the Florida coast this year was likely a product of this series of events.

Read the full story at Forbes

Satellite images show red tide hugging Florida’s Space Coast

October 24, 2018 — Red tide is so widespread that NASA can see it from space, in large colorful plumes that jut off the Space Coast.

Satellite images from this past Saturday, enhanced by a Melbourne Beach marine biologist, show high chlorophyll levels — further evidence of red tide’s scourge here.

Tests last week confirmed high red tide levels in Cocoa Beach and Satellite Beach. And beachgoers continue to sense the algae’s airborne toxin in their itchy throats and see its toll in the sporadic dead fish washing up on the beach.

But where red tide flows next is anyone’s guess.

“I am uncertain about the apparent pool off Cape Canaveral, but I heard that red tide has been found off Ponce Inlet, so there is a good chance that the pool off Cape Canaveral is red tide,” Mitch Roffer, a marine biologists and fishing conditions forecaster, said via email.

Roffer used data from NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS) onboard the Terra satellite. He found Saturday’s ocean color imagery showed “pools” of what appears to be chlorophyll stretching off Cape Canaveral, Melbourne, Cocoa and south to Fort Pierce and Port St Lucie.

Read the full story at Florida Today

Florida: Red tide creeps up to Melbourne Beach, Indialantic

October 17, 2018 — INDIALANTIC, Fla. — While test results to prove red tide are pending, the itchy throats and rancid fish carcasses on the beach this week have some already convinced, and fearing a repeat of the toxic tides that thoroughly flogged the Space Coast 16 years ago.

For tourists, another red tide now would be lousy timing. For fish, too.

“Right now we’ve got a big mullet run on the beach, so there are a lot of migratory fish following the mullet runs,” said Jon Shenker, associate professor of marine biology at the Florida Institute of Technology. “I have no idea how bad this is.”

Beachgoers and beachside residents have complained in recent days of coughing and irritated throats after being by the ocean. Dead fish reported in Indialantic and Melbourne Beach on Tuesday included bluefish, Spanish mackerel, mullet and other fish. A dead fish dotted the shoreline every 10 feet or so at Paradise Beach Park.

Brevard County is helping Florida Fish and Wildlife Conservation Commission gather water samples to test for the red tide organism, Karenia brevis. The algae releases a neurotoxin that can cause asthma-like symptoms. If ingested, it can cause digestive problems. Brevard County Natural Resources has coordinated with FWC for sampling beginning Tuesday and hopes to know the results on Wednesday.

“In the meantime, we have been monitoring conditions and have reached out to various agencies, such as Keep Brevard Beautiful, Tourism and Development, the city of Cocoa Beach, to plan for a coordinated response if and when we have reported fish kills,” Brevard County spokesman Don Walker said via email.

Read the full story at Florida Today

FLORIDA: Toxic Red Tide Could Sicken People as Hurricane Michael Pushes It Ashore

October 11, 2018 — Hurricane Michael could push this season’s toxic red tide inland, exposing more people to the dangerous health effects of a record algae bloom that has bedeviled much of Florida’s coast.

The hurricane is expected to generate a storm surge as great as 14 feet along parts of the Florida Panhandle, where it made landfall early Wednesday afternoon. That part of the coast that has seen some of the worst concentrations this year of red tide, a variety of algae that kills fish and releases toxins that cause respiratory symptoms in humans similar to tear gas.

Hurricane Michael could carry that algae past the beaches and into neighborhoods, scientists warn.

“A storm surge or king tide could bring red tide up onto land,” Larry Brand, a professor in the Department of Marine Biology and Ecology at the University of Miami, said by email. “The toxin would get into the air and people would be breathing it.”

Red tide is made up of Karenia brevis, an organism that can trigger attacks in people with asthma, according to Richard Pierce, program manager and senior scientist at the Mote Marine Laboratory & Aquarium in Sarasota. Even people who don’t have asthma can suffer from choking, coughing and stinging eyes. Some have reported lingering headaches and flu-like symptoms.

Pierce said this is the first time the state has had a severe red tide and severe hurricane at the same time, which makes the health effects harder to predict. But one risk is that the breaking waves could turn the algae into an airborne toxin, spreading the risk beyond the reach of the storm surge.

“Bubbles make an excellent surface for them,” Pierce said. “It’s a very efficient mechanism for getting toxins from the water onshore.”

Read the full story at Bloomberg Quint

Red Tide, Take Warning

October 1, 2018 — As the Spanish cartographer Juan López de Velasco sailed along southwest Florida in 1575, he was greeted by a sight that became odiously familiar this summer to those on the peninsula he mapped for the Spanish Empire so long ago. “The coast is all in ruin,” he wrote in his journal, “because in these four or five leagues of sea there is barely 1.5 fathoms of water where many fish are dying.”

It is possible that López made this entry within sight of the shell mound where my house of yellow pine has, since 1926, witnessed a time warp flow of conquistadors, past and present, and too many harmful algae blooms to count.

Rather than puzzle over the mystery of dying fish, López continued south to Cuba. A wise choice. The people who built the mound (contemporaries of the Aztec) disliked interlopers, as proved in 1521 when, on the same bay, near Sanibel Island, they sent Ponce de León packing with a lethal arrow to the thigh.The Calusa, as the indigenous are called, were no less hostile to conquistadors than was the land they inhabited — a lesson modern interlopers would do well to remember.

A typical lethal algae bloom, also known as red tide, moves like a slow-motion hurricane, piling itself ashore with an epicenter that, geographically, varies along the coast. Fishing might be great in Tampa Bay but a waste of time near Sanibel, as was true until recently. As history all but guarantees, it will happen again. As of now, though, the view from my dock includes islands where the beaches are clean and clear — and empty of tourists who still fear the stink and airborne toxins that irritate eyes and lungs. And possibly worse, if certain noxious blue-green bacteria flood into the mix, as was the case this summer. But more on that later

During my 50 years on this coast, I’ve experienced four killer algae blooms as a fishing guide (1972, ’82, ’96 and 2004). As a novelist, I’ve researched the subject, yet my understanding lacks the certainty of those newly acquainted with these blooms. Every 10 to 15 years after a rainy winter or hurricane, acres of bloated fish wash ashore, as well as bottlenose dolphins and manatees. These are lovable mammals with Disney faces — unless poisoned by lethal toxins. On the heels of public outrage come theories. Biologists squabble, environmental groups debate. Learjet conquistadors swoop in, aspirant politicians who see Florida as an untethered plum and who buy their way into office with big bucks and bumper-sticker cures.

Read the full story at The New York Times