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MASSIVE die off of clams, fish, oysters and shrimp in Kien Giang Province, Vietnam

Dead fish, dead fish mass, dead fish in Kien Giang
The mass of fish, clams, oysters and shrimps in Kien Giang province in the past few days has been unusually dead, causing billions of dong in damages to the people, as well as causing terrible stench in the area.
 
Residents say that the phenomenon of unusual seafood has appeared for many days, extending from the beach in Kien Luong district to Ha Tien town.
 
Seafood died most on May 8, a series of fish floating on the water and lying on the sand.
 
Not only fish but bottom-dwelling species such as prawns, crabs, crabs, and especially deep-sea species like clams and oysters also die in mass.
 
Mr. Vinh Kim, Chairman of Thuan Yen Clam Cattle Cooperative (Ha Tien Town), said: “The clam of the cooperative is close to the harvest date, the white dead, damage billions. Fish and shrimp also die in bulk. “
 
Mr. Phu Cot Lien (resident of Thuan Yen commune, Ha Tien town) chokedly said that he invested more than 1.5 billion for this clot but now lost.
 
Maybe, yesterday I harvested this clam. Expected to catch more than 250 tons, with the price of 21,000 thousand VND / kg, then collected more than 5 billion. But now clams are dead, “Lien said.
 
Truong Anh Vu, a resident of Duong Hoa Commune, Kien Luong District, said: “I drop 15 tons of clams like the last few billion. On harvest day, this is considered as empty hands. “
 
Mr. Van Khen (resident of Duong Hoa commune, Kien Luong district) said: “Previously I dropped nets at the beach near the house stick a lot of fish, but since the fish died so far can not baby brain”.
 
After receiving the information people reflected, Kien Giang province’s functional sector has come down to the field of field inspection and water samples sent to test to find out the cause of dead sea mass.
 
MARD also sent the team to the field and took some samples to take the test to find the cause.
 
A source from the Department of Natural Resources and Environment of Kien Giang province said that the agency had received the results of preliminary analysis of water samples analyzed CENTEMA Center for Applied Technology and Environmental Management related to the sea Mass production mentioned above.
 
Previously, three samples were transferred to this center for analysis to find the active ingredient that can kill fish mass.
 
As a result, there are 17 basic indicators in seawater and 2 indicators of pesticides are in the standard. Particularly surfactant indicators (indicators not in standard 10-MT: 2015 / BTNMT) are higher than normal.
 
In addition to the above three water samples, Kien Giang DONRE collected 7 samples of water for analysis at the laboratory of the Monitoring Center under the Department.
 
Results of the analysis of 7 indicators are included in the standard for QCVN 10-MT: 2015 / BTNMT on coastal water, NH4 + and Coliform only at the point between Tam Ban canal near the sluice gate of Trung Son shrimp pond Is exceeded by environmental standards (3.6 times and 11 times).
 
Currently, the Department of Natural Resources and Environment is awaiting the results of the analysis of phytoplankton criteria and the results of running gas chromatography to determine the origin of the surfactant. At the same time, the Department is also investigating for sources of surface active substances.
 
It is known that to date, the total number of dead fish is 14,000 including 3 types of grouper, squeeze and squirrel. The total area of ​​clam farming is more than 558ha. The damage range extends over 30km from To Chau bridge in Ha Tien town to Binh An commune, Kien Luong district.
Courtesy of vietnamnet.vn

Thousands of TONS of oysters die off in the Mekong Delta, Vietnam

Hàu nuôi chết chất đống
The Deputy Minister of AGRICULTURE & RURAL DEVELOPMENT Yuwen Eight had actual survey tour of the damage situation in the province. Situation report, Mr. Le Van Binh, Chairman Rep. said Chengde Township has more than 36 hectares of oyster, concentrated in the hamlet, Thanh, Admit Admit Admit first, with 450 households. To date the damage rate was approximately 80% of the total area, the yields oysters take about white 2250 tonnes, valued at over 47 billion.
 
The shrimp industry of Bình Đại district also affected due to increased salinity from 37-39 voice, led many households shrimp industry suffer losses, most of which reproduce.
 
Salt water on the river has surpassed the Rach Mieu bridge and are approximately 1200 fish friends reconcile menace Hong pets on the river of money in Tien Giang Province. Mr. Phan Van Cuong, feed the fish cage sculpture made of pink 4 in the hamlet of Thoi thoi Son Thanh, (HO CHI MINH CITY. My Tho, Tien Giang) said: “fish farming in dead rising 2 times friends than before Tết. Saline water are making detrimental to the development of the fish, causing them to slow down big, eat less. Sale and export to the age of fish more small fish shrinkage due to reduced resistance. If the formerly dead fish about 10 animals per day then increased to more than 30 animals per day and are growing signs “.
 
Dual hard fucking of hobbyist friends in addition to salt intrusion menace then the sale of the fish also do not have to “run the salty” drive the buying. From more than half a month now, the farmers called for driving the sale of fish are appointment several days to see, however almost the appointments of traders with aquarists are not taking place.
Courtesy of xaluan.com

MILLIONS of Oysters are dead due to disease in southern Tasmania, Australia

A case of Pacific Oyster Mortality Syndrome (POMS) has been confirmed in a second oyster growing region in southern Tasmania.
 
Oysters Tasmania, which represented growers, said the disease was confirmed at Pipe Clay Lagoon, south-east of Hobart.
 
The deadly oyster disease was first found in Ironstone Oyster’s lower Pittwater lease 30 kilometres away.
 
It killed all 2.5 million oysters at the lease.
 
Neighbouring growers in lower Pittwater also reported high mortalities and they are also being treated as POMS.
 
Oysters Tasmania CEO Neil Stump said the new confirmed case of POMS at Pipe Clay Lagoon is at one lease, but it was expected to spread to others nearby.
 
POMS is not harmful to humans but has wiped out entire growing regions in New South Wales in recent years.
 
Local stock movements are banned and New South Wales and South Australia halted all Tasmanian oyster spat imports.
 
Tasmania supplies 90 per cent of Australia’s pacific oyster spat.
Courtesy of abc.net.au

TONS of oysters killed by virus in the Algarve, Portugal

Oyster producers in the western Algarve are up in arms over a government plan that they now must pay 60 cents a kilo to have their devastated stock incinerated.
 
The Portuguese Association of Aquaculture has demanded an “urgent response” over the question of what happens next to the tons of dead oysters at the Alvor Estuary and Sagres oyster farms after a killer virus from France swept through the nurseries in October.
 
“We urgently need to know what to do with the tons of shells that are still in nurseries,” stated the general secretary of the Portuguese Aquaculture Association, Fernando Gonçalves.
 
Nine businesses in the Ria de Alvor and ‘off-shore’ near Sagres, were affected by a virus and a bacterium identified by the Portuguese Institute of the Sea and Atmosphere (IPMA) as ‘herpes virus’ and ‘vibrio’, respectively, which has killed 95% of oyster production valued at about €3 million.
 
The representative of the Association said “we are waiting for clarification from the various bodies that oversee the industry about the fate of the shells, since they are a Category 2 by-product, which would mean incineration. However, we consider that the shells without anything left inside should not be classified as such.”
 
In Fernando Gonçalves’ opinion, “the shells pose no danger of contamination and can be used, for example, as hardcore for roads or sent to landfill. Incineration would result in higher costs for producers at around 60 cents per kilogramme.”
 
Rui Ferreira, head of the largest producer of oysters in the Algarve, OstraSelect, said he lost “about 95% of production, €1 million, and that incineration would result in an additional outlay of approximately €150,000.”
 
Ferreira already has had to lay off two members of staff, “We will not invest again without knowing what happened. We will have to work differently, with permanent monitoring plans to have any certainty in the future.”
 
The death of the Algarve’s oysters was due to the diseases being transmitted from infected juvenile oysters imported from France.
Courtesy of algarvedailynews.com

Hundreds of thousands of oysters dead due to storm in New South Wales, Australia

Livelihoods have been ruined and some oyster lovers will be going without their favourite delicacy as a result of last month’s super storm in the Hunter region.
 
Mother Nature’s wrath destroyed an estimated $6million worth of stock and infrastructure across the port and in the Hawkesbury River.
 
Almost all of the area’s 40 growers suffered significant losses that will take years to replace.
 
“It’s horrific,” Port Stephens Shellfish Committee member Mark Hunter said. 
 
“Everyone’s been affected, some worse than others.”
 
In addition to wharves, leases and other infrastructure, hundreds of thousands of juvenile Sydney rock oysters were lost.
 
“It won’t be so much this Christmas but the one after that when there will be a shortage,” Mr Hunter said. 
 
Making matters worse is the fact that growers have not been able to harvest surviving oysters because salinity levels are too low.
 
Port Stephens growers were tentatively getting back on their feet after a mystery disease wiped out the area’s $5 million Pacific oyster crop in 2013 and 2014.
 
The latest blow has left many more growers on the brink or ruin. 
 
“We basically just live on the money we have in the bank,” Mr Hunter said.
 
Primary Industries Minister Niall Blair said the government would ensure the affected growers received necessary assistance. 
 
“This has been a testing time for the communities and businesses right across the Hunter and the NSW government is doing everything it can to make sure these communities get back on their feet,” he said.
 
A suite of assistance measures have been developed to help farmers and producers get back on their feet.
 
The Natural Disaster Relief Scheme assists primary producers and small business operators affected by flood, fire and storm damage. 
 
This includes loans of up to $130,000.
Courtesy of smh.com.au

Thousands of oysters and clams wash up dead on beaches in Karachi, Pakistan

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Thousands of oysters and clams wash up dead on beaches in Karachi, Pakistan

Millions Of Oysters Have Died Suddenly During Past 2 Months From ‘Mystery Disease’ In Port Stephens, Australia

MARINE scientists are working overtime to identify a mystery illness that has decimated Port Stephens Pacific oyster crops.

Millions of Pacific oysters have died suddenly over the past two months. Almost all of a batch of a million juvenile Pacific oysters imported from Tasmania by fourth generation grower Geoff Diemar died recently.

“It doesn’t seem to matter if they are imported from interstate, produced at a local hatchery or are wild catch,” he said. “The ones that seem to be surviving best are the wild catch but it depends on where they are in the port.”

Pacific oysters are not sold from the port during summer. The disease does not appear to have affected other marine species, including the native Sydney rock oyster.

A NSW Food Authority spokeswoman said testing had shown there were no human health implications regarding water quality or the consumption of seafood from the area.

“Oysters, fish and other seafood remain safe to eat,” she said.

“The authority recommends people to always thoroughly cook any recreationally caught seafood.”

The Department of Primary Industries is also working with the Environment Protection Authority on the investigation.

Pacific oysters first appeared in Port Stephens in 1985 and have been grown legally in the port since 1989. The Pacific oyster industry employs dozens of growers and is worth about $5 million per annum.

A meeting between government agencies and growers is expected to be held when analytical test results come back in the next fortnight.

600,000 Oysters Dead Due To ‘Mystery Disease’ In Port Stephens, Australia

DEATH TOLL: Robert Diemar has lost 600,000 oysters in just  weeks. Pictures: Jonathan Carroll

BIOSECURITY experts are scrambling to identify a mystery disease that has decimated Port Stephens’ multimillion-dollar Pacific oyster crops and sent several growers to the wall.

There are fears the port may have to be quarantined to prevent the disease  spreading.

Hundreds of thousands of Pacific oysters have died since late last year.

‘‘We lost 600,000 oysters over a couple of weeks. We were struggling to find any live ones to be honest,’’ veteran Salamander Bay oyster grower Robert Diemar said.

‘‘We haven’t seen anything like it before.’’

Pacific oysters, which are worth about $3million to the Port Stephens oyster industry, had been recovering from a disease that swept through the region last year.

To date, it appears the latest disease has  affected only hatchery-sourced Pacific oysters.

However, it is feared it may also attack prime Sydney rock oyster crops in the port.

‘‘It’s very frightening not only for the guys who are growing Pacific oysters, but also for the rest of us,’’ Port Stephens shellfish program chairman Don Burgoyne said. 

‘‘If it was Pacific Oyster Mortality Syndrome we would have been quarantined by now.’’

Several farmers who had invested heavily in Pacific Oysters have been ruined by the disease. ‘‘It’s literally taken my business away; I don’t know what I’m going to do,’’ Andrew Richardson said.

‘‘There’s not much we can do but to diversify. 

‘‘It’s going to take three years for Sydney rock oysters to grow.’’

A Department of Primary Industries spokeswoman said biosecurity and fisheries experts were working with growers to identify the cause of the mortalities.

Twenty batches of affected oysters had been tested at the Elizabeth Macarthur Agricultural Institute at Menangle since early last November,  with all testing negative for the virus that causes Pacific Oyster Mortality Syndrome.

‘‘It is not clear yet what is causing the mortality event, it could be an environmental factor. In all submissions tested to date, there is no evidence of a disease consistent with a known infectious agent,’’ the spokeswoman said.

‘‘Therefore, without any evidence of an infectious disease, the department’s biosecurity and fisheries experts are unable to put in place quarantine measures.’’

The NSW Environment Protection Authority and the NSW Farmers Association have also been consulted.

Massive Oyster Die Off, ‘Everywhere You Look It’s Just Dead Oysters’ In Beaufort County, S.Carolina, America

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The oyster population in parts of Beaufort County has been nearly wiped out by a massive die-off, and the area’s oyster farmers are feeling the pain, according to environmental officials and fishermen.

It’s difficult to say exactly how many oysters have died, but fishermen in Beaufort County are reporting as much as 75 to 90 percent of the oysters they find in the areas they harvest are dead, said Lee Taylor, S.C. Department of Natural Resources commercial shellfish coordinator.

“We don’t have official numbers right now because it varies even from one side of the river to another,” Taylor said.

It’s likely that heavy rain over the summer caused the deaths by inundating the estuaries where oysters grow with fresh water and lowering salinity levels, he said.

Along the banks of the Broad River, 80 to 90 percent of the oysters are dead, according to Craig Reaves, owner of Sea Eagle Market in Beaufort.

“Everywhere you look it’s just dead oysters,” he said. “Everything in that area is wiped out.”

Reaves has tested salinity levels in the river and gotten results near zero, he said. Where his fishermen once picked 1,000 single oysters in a day, they’re finding only about 100 living oysters now, Reaves said.

“It was during the summer that we had so much rain that our salinities got very out of whack,” he said. “But I’ve never seen so much rain that it would affect the oysters.”

Technically the state is at normal rain levels, but the rain fell hard enough and in a short enough span to have a lasting effect on salinity levels, Taylor said.

“We haven’t done an extensive survey yet, but there’s really not a whole lot we can do about it,” Taylor said. “We can’t increase salinity.”

Fisherman Jon Dusenberry picks clusters of oysters near Whale Branch and has seen between 75 and 90 percent of the oysters in the area near the Coosaw River dead. In the past, he’s sold his oysters to eight restaurants in Myrtle Beach, but he’s had to cut back to supplying just three this year, he said.

“That’s the first that’s happened to me in this area,” he said. “It’s kind of wiped us all out right here.”

It appears the worst of the deaths are in Reaves and Dusenberry’s areas along the Broad and Coosaw rivers, Taylor said. He has also heard from fisherman in one area near Charleston, but that die-off is not as large as in Beaufort County.

Although there is little DNR can do to stop the deaths, Taylor is documenting the event for study.

Of the oysters he has observed so far, Taylor said he’s found many with juvenile oysters attached to the inside of the shells, which means the oysters were able to reproduce at least once before they died.

However, it will still take some time for the population to recover, he said.

“It could have a long-term impact up to two or three years, but it’s hard to project,” Taylor said.