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(http://www.latimes.com/news/local/oceans/la-me-ocean30jul30,0,6670018,full.stor\

y)

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>

> (http://www.latimes.com/)

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>

> A Primeval Tide of Toxins

>

> Runoff from modern life is feeding an

explosion of primitive

> organisms. This 'rise of slime,' as one

scientist calls it, is

> killing larger species and sickening people.

>

> By Kenneth R. Weiss

> Times Staff Writer

>

> July 30, 2006

>

> Moreton Bay, Australia - The fireweed began

each spring as tufts

> of hairy growth and spread across the seafloor

fast enough to

> cover a football field in an hour.

>

> When fishermen touched it, their skin broke out

in searing

> welts. Their lips blistered and peeled. Their

eyes burned and

> swelled shut. Water that

>

> splashed from their nets spread the

inflammation to their legs

> and torsos.

>

> " It comes up like little boils, " said Randolph

Van Dyk, a

> fisherman whose powerful legs are pocked with

scars. " At

> nighttime, you can feel them burning. I tried

everything to get

> rid of them. Nothing worked. "

>

> As the weed blanketed miles of the bay over

the last decade, it

> stained fishing nets a dark purple and left

them coated with a

> powdery residue. When fishermen tried to shake

it off the

> webbing, their throats constricted and they

gasped for air.

>

> After one man bit a fishing line in two, his

mouth and tongue

> swelled so badly that he couldn't eat solid

food for a week.

> Others made an even more painful mistake,

neglecting to wash the

> residue from their hands before relieving

themselves over the

> sides of their boats.

>

> For a time, embarrassment kept them from

talking publicly about

> their condition. When they finally did speak

up, authorities

> dismissed their complaints - until a bucket of

the hairy weed

> made it to the University of Queensland's

marine botany lab.

>

> Samples placed in a drying oven gave off fumes

so strong that

> professors and students ran out of the building

and into the

> street, choking and coughing.

>

> Scientist Judith O'Neil put a tiny sample under

a microscope and

> peered at the long black filaments. Consulting

a botanical

> reference, she identified the weed as a strain

of cyanobacteria,

> an ancestor of modern-day bacteria and algae

that flourished 2.7

> billion years ago.

>

> O'Neil, a biological oceanographer, was

familiar with these

> ancient life forms, but had never seen this

particular kind

> before. What was it doing in Moreton Bay? Why

was it so toxic?

> Why was it growing so fast?

>

> The venomous weed, known to scientists as

Lyngbya majuscula, has

> appeared in at least a dozen other places

around the globe. It

> is one of many symptoms of a virulent pox on

the world's oceans.

>

> In many places - the atolls of the Pacific, the

shrimp beds of

> the Eastern Seaboard, the fiords of Norway -

some of the most

> advanced forms of ocean life are struggling to

survive while the

> most primitive are thriving and spreading.

>

> Fish, corals and marine mammals are dying

while algae, bacteria

> and jellyfish are growing unchecked.

>

> Where this pattern is most pronounced,

scientists evoke a

> scenario of evolution running in reverse,

returning to the

> primeval seas of hundreds of millions of years

ago.

>

> Jeremy B.C. Jackson, a marine ecologist and

paleontologist at the

> Scripps Institution of Oceanography in La

Jolla, says we are

> witnessing " the rise of slime. "

>

> For many years, it was assumed that the oceans

were too vast for

> humanity to damage in any lasting way. " Man

marks the Earth with

> ruin, " wrote the 19th century poet Lord Byron.

" His control

> stops with the shore. "

>

> Even in modern times, when oil spills, chemical

discharges and

> other

>

> industrial accidents heightened awareness of

man's capacity to

> injure sea life, the damage was often regarded

as temporary.

>

> But over time, the accumulation of

environmental pressures has

> altered the basic chemistry of the seas.

>

> The causes are varied, but collectively they

have made the ocean

> more hospitable to primitive organisms by

putting too much food

> into the water.

>

> Industrial society is overdosing the oceans

with basic nutrients

> - the nitrogen, carbon, iron and phosphorous

compounds that curl

> out of smokestacks and tailpipes, wash into the

sea from

> fertilized lawns and cropland, seep out of

septic tanks and gush

> from sewer pipes.

>

> Modern industry and agriculture produce more

fixed nitrogen -

> fertilizer, essentially - than all the Earth's

natural

> processes. Million of tons of carbon dioxide

and nitrogen oxide,

> produced by burning fossil fuels, enter the

ocean every day.

>

> These pollutants feed excessive growth of

harmful algae and

> bacteria.

>

> At the same time, overfishing and destruction

of wetlands have

> diminished the competing sea life and natural

buffers that once

> held the microbes and weeds in check.

>

> The consequences are evident worldwide.

>

> Off the coast of Sweden each summer, blooms of

cyanobacteria

> turn the Baltic Sea into a stinking,

yellow-brown slush that

> locals call " rhubarb soup. " Dead fish bob in

the surf. If people

> get too close, their eyes burn and they have

trouble breathing.

>

> On the southern coast of Maui in the Hawaiian

Islands, high tide

> leaves piles of green-brown algae that smell so

foul condominium

> owners have hired a tractor driver to scrape

them off the beach

> every morning.

>

> On Florida's Gulf Coast, residents complain

that harmful algae

> blooms have become bigger, more frequent and

longer-lasting.

> Toxins from these red tides have killed

hundreds of sea mammals

> and caused emergency rooms to fill up with

coastal residents

> suffering respiratory distress.

>

> North of Venice, Italy, a sticky mixture of

algae and bacteria

> collects on the Adriatic Sea in spring and

summer. This white

> mucus washes ashore, fouling beaches, or

congeals into submerged

> blobs, some bigger than a person.

>

> Along the Spanish coast, jellyfish swarm so

thick that nets are

> strung to protect swimmers from their sting.

>

> Organisms such as the fireweed that torments

the fishermen of

> Moreton Bay have been around for eons. They

emerged from the

> primordial ooze and came to dominate ancient

oceans that were

> mostly lifeless. Over time, higher forms of

life gained

> supremacy. Now they are under siege.

>

> Like other scientists, Jackson, 63, was slow to

perceive how this

> latest shift in the biological order was being

reversed. He has

> spent a good part of his professional life

underwater. Though he

> had seen firsthand that ocean habitats were

deteriorating, he

> believed in the resilience of the seas, in

their inexhaustible

> capacity to heal themselves.

>

> Then came the hurricane season of 1980. A

Category 5 storm

> ripped through waters off the north coast of

Jamaica, where

> Jackson had been studying corals since the late

1960s. A majestic

> stand of staghorn corals, known as " the

Haystacks, " was turned

> into rubble.

>

> Scientists gathered from around the world to

examine the damage.

> They wrote a paper predicting that the corals

would rebound

> quickly, as they had for thousands of years.

>

> " We were the best ecologists, working on what

was the

> best-studied coral reef in the world, and we

got it 100% wrong, "

> Jackson recalled.

>

> The vividly colored reef, which had nurtured a

wealth of fish

> species, never recovered.

>

> " Why did I get it wrong? " Jackson asked. He now

sees that the

> quiet creep of environmental decay, occurring

largely unnoticed

> over many years, has drastically altered the

ocean.

>

> As tourist resorts sprouted along the Jamaican

coast, sewage,

> fertilizer and other nutrients washed into the

sea. Overfishing

> removed most of the grazing fish that kept

algae under control.

> Warmer waters encouraged bacterial growth and

further stressed

> the corals.

>

> For a time, these changes were masked by

algae-eating sea

> urchins. But when disease greatly reduced

their numbers, the

> reef was left defenseless. The corals were soon

smothered by a

> carpet of algae and bacteria. Today, the reef

is largely a

> boneyard of coral skeletons.

>

> Many of the same forces have wiped out 80% of

the corals in the

> Caribbean, despoiled two-thirds of the

estuaries in the United

> States and destroyed 75% of California's kelp

forests, once

> prime habitat for fish.

>

> Jackson uses a homespun analogy to illustrate

what is happening.

> The world's 6 billion inhabitants, he says,

have failed to

> follow a homeowner's rule of thumb: Be careful

what you dump in

> the swimming pool, and make sure the filter is

working.

>

> " We're pushing the oceans back to the dawn of

evolution, "

> Jackson said, " a half-billion years ago when

the oceans were

> ruled by jellyfish and bacteria. "

>

> The 55-foot commercial trawler working the

Georgia coast sagged

> under the burden of a hefty catch. The cables

pinged and groaned

> as if about to snap.

>

> Working the power winch, ropes and pulleys,

Grovea Simpson

> hoisted the net and its dripping catch over the

rear deck. With a

> tug on the trip-rope, the bulging sack

unleashed its massive

> load.

>

> Plop. Splat. Whoosh. About 2,000 pounds of

cannonball jellyfish

> slopped onto the deck. The jiggling,

cantaloupe-size blobs

> ricocheted around the stern and slid down an

opening into the

> boat's ice-filled hold.

>

> The deck was streaked with purple-brown

contrails of slimy

> residue; a stinging, ammonia-like odor filled

the air.

>

> " That's the smell of money, " Simpson said, all

smiles at the

> haul. " Jellyballs are thick today. Seven cents

a pound. Yes, sir,

> we're making money. "

>

> Simpson would never eat a jellyfish. But shrimp

have grown scarce

> in these waters after decades of intensive

trawling. So during

> the winter months when jellyfish swarm, he

makes his living

> catching what he used to consider a messy

nuisance clogging his

> nets.

>

> It's simple math. He can spend a week at sea

scraping the ocean

> bottom for shrimp and be lucky to pocket $600

after paying for

> fuel, food, wages for crew and the boat owner's

cut.

>

> Or, in a few hours of trawling for jellyfish,

he can fill up the

> hold, be back in port the same day and clear

twice as much. The

> jellyfish are processed at the dock in Darien,

Ga., and exported

> to China and Japan, where spicy jellyfish salad

and soup are

> delicacies.

>

> " Easy money, " Simpson said. " They get so thick

you can walk on

> them. "

>

> Jellyfish populations are growing because they

can. The fish

> that used to compete with them for food have

become scarce

> because of overfishing. The sea turtles that

once preyed on them

> are nearly gone. And the plankton they love to

eat are growing

> explosively.

>

> As their traditional catch declines, fishermen

around the world

> now haul in 450,000 tons of jellyfish per

year, more than twice

> as much as a decade ago.

>

> This is a logical step in a process that

Daniel Pauly , a

> fisheries scientist at the University of

British Columbia, calls

> " fishing down the food web. " Fishermen first

went after the

> largest and most popular fish, such as tuna,

swordfish, cod and

> grouper. When those stocks were depleted, they

pursued other

> prey, often smaller and lower on the food

chain.

>

> " We are eating bait and moving on to jellyfish

and plankton, "

> Pauly said.

>

> In California waters, for instance, three of

the top five

> commercial catches are not even fish. They are

squid, crabs and

> sea urchins.

>

> This is what remains of California's historic

fishing industry,

> once known for the sardine fishery attached to

Monterey's Cannery

> Row and the world's largest tuna fleet, based

in San Diego, which

> brought American kitchens StarKist, Bumble Bee

and Chicken of

> the Sea.

>

> Overfishing began centuries ago but

accelerated dramatically

> after World War II, when new technologies armed

industrial

> fleets with sonar, satellite data and global

positioning systems,

> allowing them to track schools of fish and find

their most remote

> habitats.

>

> The result is that the population of big fish

has declined by

> 90% over the last 50 years.

>

> It's reached the point that the world's

fishermen, though more

> numerous, working harder and sailing farther

than ever, are

> catching fewer fish. The global catch has been

declining since

> the late 1980s, an analysis by Pauly and

colleague Reg Watson

> showed.

>

> The reduction isn't readily apparent in the

fish markets of

> wealthy countries, where people are willing to

pay high prices

> for exotic fare from distant oceans -

slimeheads caught off New

> Zealand and marketed as orange roughy, or

Patagonian toothfish,

> renamed Chilean sea bass. Now, both of those

fish are becoming

> scarce.

>

> Fish farming also exacts a toll. The farmed

stocks are fed tons

> of processed pellets made from ground-up

menhaden, sardines and

> anchovies, which are harvested in great

quantities.

>

> Dense schools of these small fish once swam

the world's

> estuaries and coastal waters, inhaling plankton

like swarming

> clouds of silvery vacuum cleaners. Maryland's

Chesapeake Bay, the

> nation's largest estuary, used to be clear,

its waters filtered

> every three days by piles of oysters so

numerous that their

> reefs posed a hazard to navigation. All this

has changed.

>

> There and in many other places, bacteria and

algae run wild in

> the absence of the many mouths that once ate

them. As the

> depletion of fish allows the lowest forms of

life to run rampant,

> said Pauly, it is " transforming the oceans into

a microbial

> soup. "

>

> Jellyfish are flourishing in the soup,

demonstrating their

> ability to adapt to wholesale changes -

including the growing

> human appetite for them. Jellyfish have been

around, after all,

> at least 500 million years, longer than most

marine animals.

>

> In the Black Sea, an Atlantic comb jelly

carried in the ballast

> water of a ship from the East Coast of the

United States took

> over waters saturated with farm runoff. Free of

predators, the

> jellies gorged on plankton and fish larvae,

depleting the

> fisheries on which the Russian and Turkish

fleets depend. The

> plague subsided only with the accidental

importation of another

> predatory jellyfish that ate the comb jellies.

>

> Federal scientists tallied a tenfold increase

in jellies in the

> Bering Sea in the 1990s. They were so thick off

the Alaskan

> Peninsula that fishermen nicknamed it the Slime

Bank. Researchers

> have found teeming swarms of jellyfish off

Georges Bank in New

> England and the coast of Namibia, in the fiords

of Norway and in

> the Gulf of Mexico. Also proliferating is the

giant nomurai found

> off Japan, a jellyfish the size of a washing

machine.

>

> Most jellies are smaller than a fist, but

their sheer numbers

> have gummed up fishing nets, forced the

shutdown of power plants

> by clogging intake pipes, stranded cruise

liners and disrupted

> operations of the world's largest aircraft

carrier, the Ronald

> Reagan.

>

> Of the 2,000 or so identified jellyfish

species, only about 10

> are commercially harvested. The largest

fisheries are off China

> and other Asian nations. New ones are springing

up in Australia,

> the United States, England, Namibia, Turkey

and Canada as

> fishermen look for ways to stay in business.

>

> Pauly, 60, predicts that future generations

will see nothing odd

> or unappetizing about a plateful of these

gelatinous blobs.

>

> " My kids, " Pauly said, " will tell their

children: Eat your

> jellyfish. "

>

> The dark water spun to the surface like an

undersea cyclone.

>

> From 80 feet below, the swirling mixture of

partially treated

> sewage spewed from a 5-foot-wide pipe off the

coast of

> Hollywood, Fla., dubbed the " poop chute " by

divers and

> fishermen.

>

> Fish swarmed at the mouth - blue tangs and

chubs competing for

> particles in the wastewater.

>

> Marine ecologist Brian Lapointe and research

assistant Rex

> " Chip " Baumberger, wearing wetsuits and

breathing air from scuba

> tanks, swam to the base of the murky funnel

cloud to collect

> samples. The effluent meets state and federal

standards but is

> still rich in nitrogen, phosphorous and other

nutrients.

>

> By Lapointe's calculations, every day about a

billion gallons of

> sewage in South Florida are pumped offshore or

into underground

> aquifers that seep into the ocean. The

wastewater feeds a green

> tide of algae and bacteria that is helping to

wipe out the

> remnants of Florida's 220 miles of coral, the

world's third

> largest barrier reef.

>

> In addition, fertilizer washes off sugar cane

fields, livestock

> compounds and citrus farms into Florida Bay.

>

> " You can see the murky green water, the green

pea soup loaded

> with organic matter, " said Lapointe, a marine

biologist at

> Harbor Branch Oceanographic Institution in Fort

Pierce, Fla. " All

> that stuff feeds the algae and bacterial

diseases that are

> attacking corals. "

>

> Government officials thought they were helping

in the early

> 1990s when they released fresh water that had

been held back by

> dikes and pumps for years. They were

responding to the

> recommendations of scientists who, at the time,

blamed the

> decline of ocean habitats on hypersalinity -

excessively salty

> seawater.

>

> The fresh water, laced with farm runoff rich in

nitrogen and

> other nutrients, turned Florida's gin-clear

waters cloudy.

> Seaweed grew fat and bushy.

>

> It was a fatal blow for many struggling corals,

delicate animals

> that evolved to thrive in clear, nutrient-poor

saltwater. So many

> have been lost that federal officials in May

added what were

> once the two most dominant types - elkhorn and

staghorn corals -

> to the list of species threatened with

extinction. Officials

> estimate that 97% of them are gone.

>

> Sewage and farm runoff kill corals in various

ways.

>

> Algae blooms deny them sunlight essential for

their survival.

>

> The nutrients in sewage and fertilizer make

bacteria grow wildly

> atop corals, consuming oxygen and suffocating

the animals

> within.

>

> A strain of bacteria found in human intestines,

Serratia

> marcescens, has been linked to white pox

disease, one of a host

> of infectious ailments that have swept through

coral reefs in

> the Florida Keys and elsewhere.

>

> The germ appears to come from leaky septic

tanks, cesspits and

> other sources of sewage that have multiplied as

the Keys have

> grown from a collection of fishing villages to

a stretch of

> bustling communities with 80,000 year-round

residents and 4

> million visitors a year.

>

> Scientists discovered the link by knocking on

doors of Keys

> residents' homes, asking to use their

bathrooms. They flushed

> bacteria marked with tracers down toilets and

found them in

> nearby ocean waters in as little as three

hours.

>

> Nearly everything in the Keys seems to be

sprouting green

> growths, even an underwater sculpture known as

Christ of the

> Abyss, placed in the waters off Key Largo in

the mid-1960s as an

> attraction for divers and snorkelers. Dive-shop

operators scrub

> the bronze statue with wire brushes from time

to time, but they

> have trouble keeping up with the growth.

>

> Lapointe began monitoring algae at Looe Key in

1982. He picked

> the spot, a 90-minute drive south of Key Largo,

because its clear

> waters, colorful reef and abundance of fish

made it a favorite

> site for scuba divers. Today, the corals are in

ruins, smothered

> by mats of algae.

>

> Although coral reefs cover less than 1% of the

ocean floor, they

> are home to at least 2 million species, or

about 25% of all

> marine life. They provide nurseries for fish

and protect

> oceanfront homes from waves and storm surges.

>

> Looe Key was once a sandy shoal fringed by

coral. The Key has

> now slipped below the water's surface, a

disappearing act likely

> to be repeated elsewhere in these waters as

pounding waves

> breach dying reefs. Scientists predict that the

Keys ultimately

> will have to be surrounded by sea walls as

ocean levels rise.

>

> With a gentle kick of his fins through murky

green water,

> Lapointe maneuvered around a coral mound that

resembled the

> intricate, folded pattern of a brain. Except

that this brain was

> being eroded by the coralline equivalent of

flesh-eating

> disease.

>

> " It rips my heart out, " Lapointe said. " It's

like coming home

> and seeing burglars have ransacked your house,

and everything you

> cherished is gone. "

>

> The ancient seas contained large areas with

little or no oxygen

> - anoxic and hypoxic zones that could never

have supported sea

> life as we know it. It was a time when

bacteria and jellyfish

> ruled.

>

> Nancy Rabalais, executive director of the

Louisiana Universities

> Marine Consortium, has spent most of her

career peering into

> waters that resemble those of the distant

past.

>

> On research dives off the Louisiana coast, she

has seen cottony

> white bacteria coating the seafloor. The

sulfurous smell of

> rotten eggs, from a gas produced by the

microbes, has seeped into

> her mask. The bottom is littered with the

ghostly silhouettes of

> dead crabs, sea stars and other animals.

>

> The cause of death is decaying algae. Fed by

millions of tons of

> fertilizer, human and animal waste, and other

farm runoff racing

> down the Mississippi River, tiny marine plants

run riot, die and

> drift to the bottom. Bacteria then take over.

In the process of

> breaking down the plant matter, they suck the

oxygen out of

> seawater, leaving little or none for fish or

other marine life.

>

> Years ago, Rabalais popularized a term for this

broad area off

> the Louisiana coast: the " dead zone. " In fact,

dead zones aren't

> really dead. They are teeming with life - most

of it bacteria and

> other ancient creatures that evolved in an

ocean without oxygen

> and that need little to survive.

>

> " There are tons and tons of bacteria that live

in dead zones, "

> Rabalais said. " You see this white snot-looking

stuff all over

> the bottom. "

>

> Other primitive life thrives too. A few worms

do well, and

> jellyfish feast on the banquet of algae and

microbes.

>

> The dead zone off Louisiana, the second

largest after one in the

> Baltic Sea, is a testament to the unintended

consequences of

> manufacturing nitrogen fertilizer on a giant

scale to support

> American agriculture. The runoff from

Midwestern farms is part of

> a slurry of wastewater that flows down the

Mississippi, which

> drains 40% of the continental United States.

>

> The same forces at work in the mouth of the

Mississippi have

> helped create 150 dead zones around the world,

including parts

> of the Chesapeake Bay and waters off the Oregon

coast.

>

> About half of the Earth's landscape has been

altered by

> deforestation, farming and development, which

has increased the

> volume of runoff and nutrient-rich sediment.

>

> Most of the planet's salt marshes and mangrove

forests, which

> serve as a filter between land and sea, have

vanished with

> coastal development. Half of the world's

population lives in

> coastal regions, which add an average of 2,000

homes each day.

>

> Global warming adds to the stress. A reduced

snowpack from

> higher temperatures is accelerating river

discharges and thus

> plankton blooms. The oceans have warmed

slightly - 1 degree on

> average in the last century. Warmer waters

speed microbial

> growth.

>

> Robert Diaz, a professor at the Virginia

Institute of Marine

> Science, has been tracking the spread of

low-oxygen zones. He

> has determined that the number is doubling

every decade, fed by a

> worldwide cascade of nutrients - or as he puts

it, energy. We

> stoke the ocean with energy streaming off the

land, he said, and

> with no clear pathways up the food chain, this

energy fuels an

> explosion of microbial growth.

>

> These microbes have been barely noticeable for

millions of

> years, tucked away like the pilot light on a

gas stove.

>

> " Now, " Diaz said, " the stove has been turned

on. "

>

> In Australia, fishermen noticed the fireweed

around the time much

> of Moreton Bay started turning a dirty,

tea-water brown after

> every rain. The wild growth smothered the

bay's northern

> sea-grass beds, once full of fish and

shellfish, under a blanket

> a yard thick.

>

> The older, bottom layers of weed turned

grayish-white and

> started to decay. Bacteria, feeding on the rot,

sucked all of

> the oxygen from beneath this woolly layer at

night. Most sea life

> swam or scuttled away; some suffocated.

Fishermen's catches

> plummeted.

>

> Most disturbing were the rashes, an outbreak

often met with

> scoffs from local authorities.

>

> After suffering painful skin lesions, fisherman

Greg Savige took

> a sealed bag of the weed in 2000 to Barry

Carbon, then

> director-general of the Queensland

Environmental Protection

> Agency. He warned Carbon to be careful with

it, as it was " toxic

> stuff. " Carbon replied that he knew all about

cyanobacteria from

> western Australian waters and that there was

nothing to worry

> about.

>

> Then he opened the bag and held it close to his

face for a

> sniff.

>

> " It was like smearing hot mustard on the lips, "

the chastened

> official recalled.

>

> Aboriginal fishermen had spotted the weed in

small patches years

> earlier, but it had moved into new parts of the

bay and was

> growing like never before.

>

> Each spring, Lyngbya bursts forth from spores

on the seafloor

> and spreads in dark green-and-black dreadlocks.

It flourishes

> for months before retreating into the muck.

Scientists say it

> produces more than 100 toxins, probably as a

defense mechanism.

>

> At its peak in summer, the weed now covers as

much as 30 square

> miles of Moreton Bay, an estuary roughly the

size of San

> Francisco Bay. In one seven-week period, its

expansion was

> measured at about 100 square meters a minute -

a football field

> in an hour.

>

> William Dennison, then director of the

University of Queensland

> botany lab, couldn't believe it at first.

>

> " We checked this 20 times. It was

mind-boggling. It was like

> 'The Blob,' " Dennison said, recalling the

1950s horror movie

> about an alien life form that consumed

everything in its path.

>

> Suspecting that nutrients from partially

treated sewage might be

> the

>

> culprit, another Queensland University

scientist, Peter Bell,

> collected some wastewater and put it in a

beaker with a pinch of

> Lyngbya. The weed bloomed happily.

>

> As Brisbane and the surrounding area became the

fastest growing

> region in Australia, millions of gallons of

partially treated

> sewage gushed from 30 wastewater treatment

plants into the bay

> and its tributary rivers.

>

> Officials upgraded the sewage plants to remove

nitrogen from the

> wastewater, but it did not stop the growth of

the infernal weed.

>

> Researchers began looking for other sources of

Lyngbya's

> nutrients, and are now investigating whether

iron and possibly

> phosphorous are being freed from soil as

forests of eucalyptus

> and other native trees are cleared for farming

and development.

>

> " We know the human factor is responsible. We

just have to figure

> out what it is, " Dennison said.

>

> Recently, Lyngbya has appeared up the coast

from Moreton Bay, on

> the Great Barrier Reef, where helicopters bring

tourists to a

> heart-shaped coral outcropping. When the

helicopters depart,

> seabirds roost on the landing platform,

fertilizing the reef

> with their droppings. Lyngbya now beards the

surrounding corals.

>

> " Lyngbya has lots of tricks, " said scientist

Judith O'Neil.

> " That's why it's been around for 3 billion

years. "

>

> It can pull nitrogen out of the air and make

its own fertilizer.

> It uses a different spectrum of sunlight than

algae do, so it can

> thrive even in murky waters. Perhaps its most

diabolical trick

> is its ability to feed on itself. When it dies

and decays, it

> releases its own nitrogen and phosphorous into

the water,

> spurring another generation of growth.

>

> " Once it gets going, it's able to sustain

itself, " O'Neil said.

>

> Ron Johnstone, a University of Queensland

researcher, recently

> experienced Lyngbya's fire. He was studying

whether iron and

> phosphorous in bay sediments contribute to the

blooms, and he

> accidentally came in contact with bits of the

weed. He broke out

> in rashes and boils, and needed a cortisone

shot to ease the

> inflammation.

>

> " It covered my whole chest and neck, " he said.

" We've just

> ordered complete containment suits so we can

roll in it. "

>

> Fishermen say they cannot afford such pricey

equipment. Nor

> would it be practical. For some, the only

solution is to turn

> away from the sea.

>

> Lifelong fisherman Mike Tanner, 50, stays off

the water at least

> four months each year to avoid contact with

the weed. It's an

> agreement he struck with his wife, who was

appalled by his

> blisters and worried about the long-term health

consequences.

>

> " When he came home with rash all over his

body, " Sandra Tanner

> said, " I said, 'No, you are not going.' We

didn't know what was

> happening to him. "

>

> Tanner, a burly, bearded man, is frustrated

that he cannot help

> provide for his family. Gloves and other

waterproof gear failed

> to protect him.

>

> " It's like acid, " Tanner said. " I couldn't

believe it. It kept

> pulling the skin off. "

>

> Before the Lyngbya outbreak, 40 commercial

shrimp trawlers and

> crab boats worked these waters. Now there are

six, and several of

> them sit idle during fireweed blooms.

>

> " It's the only thing that can beat us, " Greg

Savige said. " Wind

> is nothing. Waves, nothing. It's the only thing

that can make us

> stop work. When you've got sores and the skin

peels away, what

> are you going to do? "

>

> Times staff writer Usha Lee McFarling

contributed to this

> report.

>

 

 

 

 

" To be nobody-but-myself in a world which is doing its best, night and day, to

make me everybody else - means to fight the hardest battle which any human being

can fight, and never stop fighting. " -e.e. cummings-

 

 

 

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