Tag Archives: Green Algae

‘It can kill you in seconds’: the deadly algae on Brittany’s beaches


Green algae invasion, Brittany, France. Photo source: ©© Cristina Barroca

Excerpts;

For decades, potentially lethal green algae have amassed in shallow bays on Brittany’s beautiful north-western coast. Environmentalists say the blossoming of unusually large amounts of green algae are linked to nitrates in fertilisers and waste from the region’s intensive pig, poultry and dairy farming flowing into the river system and entering the sea…

Read Full Article; Guardian UK (09-08-2019)

Wave of Toxic Green Beaches, France; By Sharlene Pilkey (10-2009)
With beaches and coastlines all over the world already under attack from sea level rise, pollution, mining, driving, seawall construction and human development encroachment, another menace is mounting an assault…

Green And Golden Seaweed Tides On The Rise, By Victor Smetacek & Adriana Zinging (08-2014)
Green, brown and red seaweeds lying on the beach are part and parcel of life in many coastal regions. The amount of beached seaweed biomass started to increase along the shores of industrialized countries in the 1970s, and by the 1990s had become a nuisance along many beaches when mass-stranding events of macroalgae became known as green tides…

Tracking Sargassum’s ocean path could help predict coastal inundation events


Floating mats of sargassum approaching the shores, Caribbean sea. Photograph: © SAF — Coastal Care.

Excerpts;

In recent years, large amounts of Sargassum have been washing up on beaches from the Caribbean to west Africa. This floating seaweed drifts on the oceans currents. New research explores how the Sargassum might grow while it is meandering along the currents, not just where it floats, combining both ocean physics and seaweed biology for the first time to understand the distribution patterns. Knowing could eventually help predict its arrival and impact on beaches around the world…

Read Full Article; Science Daily (08-23-2018)

Sargassum: The seaweed deluge hitting Caribbean shores; BBC News (08-06-2018)

Mysterious masses of seaweed assault Caribbean islands; Science Mag (06-11-2018)
The Caribbean is bracing for what could be the mother of all seaweed invasions, with satellite observations warning of record-setting Sargassum ​blooms and seaweed already swamping beaches…

The Eastern Caribbean Is Swamped by a Surge of Seaweed; Hakai Magazine (06-11-2018)
Massive rafts of floating sargassum are killing wildlife and preventing fishers from launching their boats…

Sargassum Watch Warns of Incoming Seaweed; (09-06-2016)
Sargassum beaching events in the Caribbean, West Africa, and other regions have received wide media attention, prompting action by regional governmental agencies and environmental groups seeking to understand this new phenomenon…

Plaguing Paradise; The Economist (09-02-2015)
Smelly piles of seaweed are ruining holidays. Globs of sargassum seaweed have landed on Caribbean beaches this year, forming piles that are sometimes metres deep…

Sargassum Inundates the Beaches of the Caribbean; Mission Blue, Sylvia Earle Alliance (10-31-2014)
Massive amounts of pelagic sargassum have ben washing up on Carribean beaches for the past few months. According to Mission Blue friend Martha Gilkes of Antigua, the seaweed drifts are getting as high as 3 to 4 feet on some beaches…

Mexico Deploys its Navy to Face its Latest Threat: Monster Seaweed, The Washington Post (10-29-2015)

A Tale of Two Beaches: Tompire Bay, NE Trinidad; By John Weber, William Neal & Jeanette Arkle

Scientists testing new solution to fight Florida’s toxic red tide


A red tide, or harmful algal bloom, is the rapid growth of microscopic algae. Some produce toxins that have harmful effects on people, fish, marine mammals, and birds. In Florida and Texas, this is primarily caused by the harmful algae species, Karenia brevis. Karenia Brevis can cause severe respiratory irritation in people, produce large fish kills, and discolor water along the coast. Captions and Photo source: NOAA

Excerpts;

The state of Florida is at war with a toxic red tide. A tide that is killing marine life along the Sunshine State’s southwest coast and creating a stench.

Scientists at Mote Marine Laboratory in Sarasota are working on a new weapon that they call an “Ozone Treatment System…

Read Full Article, CBS News (08-18-2018)

Red tide is devastating Florida’s sea life. Are humans to blame? National Geographic (08-08-2018)
Thousands of sea creatures now litter many of southern Florida’s typically picturesque beaches. “Anything that can leave has, and anything that couldn’t leave has died…”

Worst “red tide” toxic algae bloom in years killing turtles, manatees in Florida; CBS News (08-02-2018)

What is a red tide? MNN (08-02-2018)

Toxic Algal Blooms Aren’t Just Florida’s Problem. And They’re On The Rise. Huffington Green (07-07-2016)

Red tide is devastating Florida’s sea life. Are humans to blame?


Photo source: ©© Pmjohnso

Excerpts;

Thousands of sea creatures now litter many of southern Florida’s typically picturesque beaches.

“Anything that can leave has, and anything that couldn’t leave has died.”…

Read Full Article, National Geographic (08-08-2018)

Worst “red tide” toxic algae bloom in years killing turtles, manatees in Florida; CBS News (08-02-2018)

What is a red tide? MNN (08-02-2018)

Toxic Algal Blooms Aren’t Just Florida’s Problem. And They’re On The Rise. Huffington Green (07-07-2016)

Worst “red tide” toxic algae bloom in years killing turtles, manatees in Florida

red-tide-blue-bloom
Red tide, blue glow. Photo source: ©© Dcissteve

Excerpts;

Thousands of fish, eels and turtles are dying, sometimes as far as the eye can see, in parts of southwest Florida. Just this week, one of several lifeless manatees was pulled from the water. The suspected culprit is a toxic algae bloom known as “red tide…”

Read Full Article, CBS News (08-02-2018)

What is a red tide? MNN (08-02-2018)

Toxic Algal Blooms Aren’t Just Florida’s Problem. And They’re On The Rise. Huffington Green (07-07-2016)

Wave of Toxic Green Beaches, France; By Sharlene Pilkey (10-2009)
With beaches and coastlines all over the world already under attack from sea level rise, pollution, mining, driving, seawall construction and human development encroachment, another menace is mounting an assault…

Green And Golden Seaweed Tides On The Rise, By Victor Smetacek & Adriana Zinging (08-2014)
Green, brown and red seaweeds lying on the beach are part and parcel of life in many coastal regions. The amount of beached seaweed biomass started to increase along the shores of industrialized countries in the 1970s, and by the 1990s had become a nuisance along many beaches when mass-stranding events of macroalgae became known as green tides…

Toxic Algae Blooming in Warm Water from California to Alaska, (08-05-2015)
A vast bloom of toxic algae off the West Coast is denser, more widespread and deeper than scientists feared even weeks ago…

What is a red tide?

red-tide-bioluminiscence
Red tide bioluminescence. Distinctive blue flashes, a type of bioluminescence, that are visible at night in some marine environments are caused by tiny, unicellular plankton known as dinoflagellates, some of which can produce toxins that are harmful to the environment. Captions: Science Daily. Photo source: ©© Phil Gibbs

Excerpts;

Harmful algal blooms pop up nearly every summer, turning coastal waters red and creating problems for marine life and humans…

Read Full Article, MNN (08-02-2018)

Toxic Algal Blooms Aren’t Just Florida’s Problem. And They’re On The Rise. Huffington Green (07-07-2016)

Wave of Toxic Green Beaches, France; By Sharlene Pilkey (10-2009)
With beaches and coastlines all over the world already under attack from sea level rise, pollution, mining, driving, seawall construction and human development encroachment, another menace is mounting an assault…

Green And Golden Seaweed Tides On The Rise, By Victor Smetacek & Adriana Zinging (08-2014)
Green, brown and red seaweeds lying on the beach are part and parcel of life in many coastal regions. The amount of beached seaweed biomass started to increase along the shores of industrialized countries in the 1970s, and by the 1990s had become a nuisance along many beaches when mass-stranding events of macroalgae became known as green tides…

Toxic Algae Blooming in Warm Water from California to Alaska, (08-05-2015)
A vast bloom of toxic algae off the West Coast is denser, more widespread and deeper than scientists feared even weeks ago…

Seaweed farming and its surprising benefits


Photograph: © SAF — Coastal Care

Excerpts;

Increasing numbers of fishermen, scientists, and foodies in the country are starting to look at seaweed as a promising source of food, jobs and help cleaning ocean waters…

Read Full Article, CBS News (07-15-2018)

Putting algae and seaweed on the menu could save our seafood; Phys. Org (12-14-2017)
If we have to feed 9.8 billion people by 2050, food from the ocean will have to play a major role. As a recent EU report highlighted, we should instead be looking at how we can harvest more smaller fish and shellfish, but also species that aren’t as widely eaten such as seaweed and other algae…

A New Leaf: Seaweed could be a miracle food—if we can figure out how to make it taste good, The New Yorker (11-02-2015)
Seaweed, which requires neither fresh water nor fertilizer, is one of the world’s most sustainable and nutritious crops. It absorbs dissolved nitrogen, phosphorous, and carbon dioxide directly from the sea—its footprint is negative—and proliferates at a terrific rate. Kelp farming can rehabilitate the ocean’s threatened ecosystems, mitigate the effects of climate change, and revive coastal economies…

Can seaweed farming save Indonesian fishermen? IRIN (09-16-2016)

The Coming Green Wave: Ocean Farming to Fight Climate Change, The Atlantic (11-23-2011)
Ocean farming is not a modern innovation. Unfortunately, modeled on land-based factory livestock farms, aquaculture operations are infamous for their low-quality, tasteless fish pumped full of antibiotics and polluting local waterways. But a small group of ocean farmers and scientists decided to chart a different course. Rather than relying on mono-aquaculture operations, these new ocean farms are pioneering muti-tropic and sea-vegetable aquaculture, whereby ocean farmers grow abundant, high-quality seafood while improving, rather than damaging, the environment…

How Eating Seaweed Can Help Cows to Belch Less Methane; Yale E360 (07-02-2018)
Emissions from the nearly 1.5 billion cattle on earth are a major source of methane, a powerful greenhouse gas. Now, researchers in California and elsewhere are experimenting with seaweed as a dietary additive. Farmers in ancient Greece and 18th-century Iceland deliberately grazed their cows on beaches…

Nearly Half of U.S. Seafood Supply is Wasted, Study Shows, Science Daily (09-25-2015)
As much as 47 percent of the edible US seafood supply is lost each year, mainly from consumer waste, new research suggests…

Heading to the beach? Get ready for thick, slimy seaweed

Fig.-10-giant-wrack-line-of-sargassum
More than 1,000 square miles of seaweed have been detected in satellite photos of the Caribbean, three times larger than the 2015 record.
Trinidad, West Indies. Giant wrack-line of Sargassum. Height here exceeded 2 m. The wall was definitely a barrier to nesting turtles. Captions: A Tale of Two Beaches: Tompire Bay, NE Trinidad; By John Weber, William Neal & Jeanette Arkle. Photo courtesy of: © Jeanette Arkle.

Excerpts;

Thick mats of seaweed have washed up on South Florida beaches in recent weeks, creating a tangled, squishy barrier between swimmers and the ocean.

The seaweed, a brownish variety called sargassum, arrived largely from the Caribbean, where rotting seaweed has piled up on beaches and driven away tourists…

Read Full Article; Sun Sentinel (06-20-2018)

Mysterious masses of seaweed assault Caribbean islands; Science Mag (06-11-2018)
The Caribbean is bracing for what could be the mother of all seaweed invasions, with satellite observations warning of record-setting Sargassum ​blooms and seaweed already swamping beaches…

Mysterious masses of seaweed assault Caribbean islands


Trinidad, West Indies. Sargassum covers the beach. Captions: A Tale of Two Beaches: Tompire Bay, NE Trinidad; By John Weber, William Neal & Jeanette Arkle. Photo courtesy of: © Jeanette Arkle.

Excerpts;

In retrospect, 2011 was just the first wave. That year, massive rafts of Sargassum—a brown seaweed that lives in the open ocean—washed up on beaches across the Caribbean, trapping sea turtles and filling the air with the stench of rotting eggs.

But a few years later “it came back worse,” Oxenford says. Now, the Caribbean is bracing for what could be the mother of all seaweed invasions, with satellite observations warning of record-setting Sargassum ​blooms and seaweed already swamping beaches. The Barbados government declared a national emergency on 7 June….

Read Full Article; Science Mag (06-11-2018)

The Eastern Caribbean Is Swamped by a Surge of Seaweed; Hakai Magazine (06-11-2018)
Massive rafts of floating sargassum are killing wildlife and preventing fishers from launching their boats…

Sargassum Watch Warns of Incoming Seaweed; (09-06-2016)
Sargassum beaching events in the Caribbean, West Africa, and other regions have received wide media attention, prompting action by regional governmental agencies and environmental groups seeking to understand this new phenomenon…

Plaguing Paradise; The Economist (09-02-2015)
Smelly piles of seaweed are ruining holidays. Globs of sargassum seaweed have landed on Caribbean beaches this year, forming piles that are sometimes metres deep…

Beautiful Caribbean Beaches Now a Smelly Mess After Massive Seaweed Invasion, The Washington Post (08-14-2015)

Sargassum Inundates the Beaches of the Caribbean; Mission Blue, Sylvia Earle Alliance (10-31-2014)
Massive amounts of pelagic sargassum have ben washing up on Carribean beaches for the past few months. According to Mission Blue friend Martha Gilkes of Antigua, the seaweed drifts are getting as high as 3 to 4 feet on some beaches…

Mexico Deploys its Navy to Face its Latest Threat: Monster Seaweed, The Washington Post (10-29-2015)

Video: Algues Sargasses, Plage du Diamant- Martinique; DailyMotion Video (08-18-2015)
Sargassum is invading the beaches of Martinique island, French West Indies.

French West Indies: France’s Minister of Ecology and Sustainable Development announces a 10 million euros plan to fight sargassum (06-12-2018)

A Tale of Two Beaches: Tompire Bay, NE Trinidad; By John Weber, William Neal & Jeanette Arkle

Fig.-10-giant-wrack-line-of-sargassum
Trinidad, West Indies. Giant wrack-line of Sargassum. Height here exceeded 2 m. The wall was definitely a barrier to nesting turtles. Captions: A Tale of Two Beaches: Tompire Bay, NE Trinidad; By John Weber, William Neal & Jeanette Arkle. Photo courtesy of: © Jeanette Arkle.