The current cold spell in upper Thailand has killed at least 10 tonnes of fish being raised in baskets in Tha Uthen distict.
The cold weather moved in before the New Year, with temperatures of 10-12°C overnight.
Farmers raising fish in the Songkhram stream, a Mekong river tributary, are mostly from Hat Kuan village in tambon Chaiburi of Tha Uthen district.
They said large numbers of fish, mostly Nile tilapia or pla nil, had died in the last few days. They estimated their losses at 10 tonnes or more. The fish were four to five months old and weighed 1-1.2 kilogrammes each, and were almost ready for market. They valued the total loss at 500,000 baht.
The dead fish had to be buried. Fishery officials had warned them the fish were not safe to eat.
Piya Atkachorn, chief of the fishery office of Tha Uthen, said the fish died from a combination of the cold and low oxygen content of the water of Songkhram stream.
His office was looking into ways of mitigating the damage to the fish farmers, he said.
Courtesy of bangkokpost.com
As Marco Island builds high concentration levels of red tide, Collier County cleanup crews took on raking up hundreds of pounds of dead fish over the weekend, according to Florida Fish & Wildlife Conservation Commission.
Since Friday, the county said they raked 150 to 200 pounds on Marco Island alone. But on Tigertail Beach, there is still work to be done.
“It’s interesting because the coughing will come pretty much at the same time. We’ll both be hit at the same time,” Elisa Milano said.
The couple sat nearly a mile away from the water.
“It’s not as bad back here,” Milano said.
Meanwhile at the shoreline, Janice Shaffer and her grandchildren made the best of a bizarre beach day.
“It comes almost every year, so we just kind of deal with it. I try to get the grandkids not to touch the dead fish, which is gross,” Shaffer said.
Others, like Pam and Sybil Burge went out of their way to dodge dead fish in order to snag some shells. Both said they wonder what the county is doing to clean up the mess.
“Since I’m still shrieking every time I cross an eel or a fish, I would say, could you do a better job?” Sybil Burge said.
The county said cleanup will take time. In smaller areas, like Vanderbilt Beach, crews can rake up all the dead fish every weekday. But with 2.5 miles of beach to rake on Marco, it will take a few days.
Courtesy of nbc-2.com
One of the largest salmon hatcheries in the state was forced to destroy thousands of fish after a landslide Wednesday damaged a pipeline that supplies its water.
The Macaulay Salmon Hatchery in Juneau is run by Douglas Island Pink and Chum Inc., known locally as DIPAC. Its water comes from Salmon Creek Reservoir and shares a pipeline with Alaska Electric Light & Power’s power plant.
Debris from the slide and others along Salmon Creek road caused by heavy rain makes it difficult to access the area. That means it will take some time to repair the pipeline
Without a freshwater source, the hatchery’s staff had to make a tough decision over which fish to save with the remaining water.
They destroyed all the young chinook salmon and rainbow trout that would have been released next spring, and most of the young coho salmon, too.
The rest of the facility’s fish stock is stable for now. The hatchery is working with AEL&P to secure a backup water supply until the pipeline can come back on line.
The Salmon Creek trail remains closed while AEL&P makes repairs.
The hatchery has been operating in its current location since 1990, according to its website. It’s permitted for 135 million chum, 1.5 million coho, 1 million chinook and 50,000 rainbow trout. It can hold up to 300 million eggs and is one of the eight largest salmon hatcheries in the State of Alaska.
Courtesy of ktoo.org
Environment Agency experts are today out at Caldecote Lake carrying out tests on the water, which connects to Caldecote brook.
Bodies of fish can be seen all round the edge of the lake and it is believed the deaths could have been caused by some sort of pollutant in the lake.
A spokesman for the Parks Trust said this morning: “The Parks Trust were informed about this yesterday and the matter has been flagged to the Environment Agency who will be investigating today.”
Courtesy of miltonkeynes.co.uk
Although in El Puerto there is no news of the appearance of dead rodents on the beaches , at least not in the amount in which it has occurred in other cities, such as Rota or Sanlúcar, if the arrival at the shore of the portuense coast of a great quantity of fish thrown by the tide.
This phenomenon has occurred especially on the beach of Valdelagrana and according to the City Council it is something common at this time of year, due to storms and the contribution of fresh water to the Bay of Cádiz, due to the torrential rains that are coming. registering occasionally in the last dates.
The arrival of dead fish would have affected mainly Levante beach, according to some citizens who have contacted this newspaper. According to what this newspaper has learned, the workers of the beach cleaning service have been removing dozens of mullet from the shore and also fish of other species , washed away by the tide, sometimes up to 300 specimens in a single day.
This Monday, without going any further, the operators began first thing in the morning, concluding their day in the middle of the afternoon, leaving the beach clean before the tide rose and could drag them out to sea again.
Although fish kills can be caused by storms, it can also be due, at least in part, to some illegal fishing gear that has been adrift.
Courtesy of diariodecadiz.es
The ecological catastrophe did not only concern the death of fish due to suffocation but also birds.
“More extensive than the initial estimate was the ecological destruction of Lake Koronia in September 2019, when there was a massive death of fish, while the risk of another collapse remains.” This was pointed out by Maria Moustaka, Professor of Hydro Botany – Hydroecology at the Department of Biology of the Aristotle University of Thessaloniki, presenting a relevant study at the 7th Environmental Conference of Macedonia, in collaboration with members of the Aristotle University of Thessaloniki and the University of Thessaly.
“The research was based on a set of results – physico-chemical and biological parameters, satellite data and imaging – from March to September 2019, which do not leave much room for doubt about the cause of the observed phenomena,” he told APE. Ms. Moustaka clarified that the image of the lake is not only due to the climatic factor, such as the drought, which reduced the water level.
“The ecological catastrophe did not only concern the death of fish due to suffocation but also birds, while a significant reduction of biodiversity was observed, even in phytoplankton. “As for the birds, from the skeletons we found, we believe that their death is related to the poor ecological quality of the water”, says Ms. Moustaka.
Courtesy of newsitamea.gr
The Bureau of Fisheries and Aquatic Resources (BFAR) on Friday (Oct. 30) said the estimated loss in a fish kill in Lake Buhi in Camarines Sur province linked to Typhoon “Quinta” (International name Molave) has reached P52 million.
The Buhi Lake Development Authority (BLDA) report cited by the BFAR said the fish kill hit at least 18 fish cage operators who lost at least 50.2 metric tons of tilapia.
Nonie Enolva, BFAR Bicol spokesperson, said the fish kill was caused by “seiches” or waves whipped up by gusty winds from Quinta when it made landfall in Camarines Sur on Oct. 26.
Enolva, in a phone interview, said losses were being counted in the villages of Iraya, Ebayugan, Tambo, Cabatoan, Salvacion and Sta. Elena in Buhi town.
Enolva said water quality test conducted by fishery technicians indicated that the lake’s dissolved oxygen level had dropped and levels of ammonia nitrogen, from feeds, had gone up most probably because of the seiche. Tons of tilapia drowned as a result, she said.
The 1,800-hectare lake in Buhi town supplies the fish needs of the four mainland Bicol provinces of Camarines Sur, Camarines Norte, Albay, Sorsogon and also the National Capital Region (NCR).
Courtesy of newsinfo.inquirer.net
100 tons of fish died suddenly in Lake Toba , North Sumatra (North Sumatra) some time ago. The water quality in Lake Toba is also one of the highlights.
Rusdi Leidonald, an academic at the Aquatic Resources Management Study Program at the University of North Sumatra (USU), said the sudden death of fish could be triggered by a decrease in water quality. According to him, the decline in water quality can be triggered by many factors.
“There are many things that can cause a decrease in water quality,” said Rusdi.
He said one of the triggers for the decline in water quality is the weather factor. According to him, the explanation of the Samosir Agricultural Service about the strong winds that triggered the water to rotate so that turbid water rose to the top of the lake could be the cause of the decline in water quality.
“Theoretically it can cause it,” said Rusdi.
However, Rusdi said the problem of decreasing water quality must be further analyzed. Rusdi said that his party does not have the latest data on the water quality of Lake Toba.
“We at USU do not yet have the latest data regarding the current state of Lake Toba and I am sure that the response of the regency and municipal government around Lake Toba and the provincial government also has competence in this field,” he said.
Rusdi explained that strong winds are not only disturbing the water quality in Lake Toba . He said that strong winds had also disturbed the quality of water in several lakes in Indonesia.
“This also often happens in other lakes, such as Lake Singkarak in West Sumatra,” said Rusdi.
Research related to water quality in Lake Toba was conducted in 2014. The Director General of Pollution and Environmental Damage Control at the Ministry of Environment and Forestry at that time, Karliansyah, said that the lake which was a tourist attraction was contaminated with fish feed.
“So in Lake Toba there are many floating cages from companies and indigenous people. From these cages a lot of fish feed is deposited,” said Karliansyah during a conversation.
Courtesy of news.detik.com
Everywhere you look, dead fish: On the rocks, tangled in trash bags—lifeless and limp. It’s just the latest school of fish to meet their demise in the Bronx.
“So you would have a plume of polluted water, which would have a lot of sewage and would have very little oxygen. That would create a fish die-off like this,” explained Tracy Brown of Save the Sound, an environmental advocacy group that researches the water quality of the Long Island Sound.
“So you would have like a plume of polluted water, which would have a lot of sewage and would have very little oxygen. That would create a fish die-off lie this,” said environmental activist Tracy Brown.
She told NY1 that the sewage pipes in the Westchester County city of Mount Vernon are in such a state of disrepair, sewage spills into the Hutchinson river.
“[It’s] creating unhealthy conditions for the wildlife clearly, and also for people,” said Brown.
Scientists say the sewage starts in Mount Vernon, but it doesn’t stay there. It makes its way down stream to the Eastchester Bay in the Bronx.
The environmentalists say Mount Vernons sewage also spills into the Bronx River, which courses through the Bronx to the East River, and the Long Island Sound.
Mount Vernon has ignored several state and federal court orders to fix it’s broken system, but last month a federal judge issued a court order requiring it to comply with the federal Clean Water Act.
We spoke with the communications director for Mount Vernon mayor Shawyn Patterson-Howard, who told NY1 that COVID has “seriously impacted city operations and services overall,” adding that, despite this shortfall, DPW has completed six of the seven mandatory repairs in the past three months.
According to New York City’s Department of Environmental Protection, the New York Harbor is cleaner today than it has been since the Civil War. But there are smaller rivers and streams like those in the Bronx that do not meet federal water quality standards.
Courtesy of ny1.com
Dolphin-watchers are expected to be in luck after millions of sprat – their favourite food – washed up on a beach near Barmouth.
Huge numbers of the members of the sardine family were spotted on Benar Beach in Gwynedd on Saturday.
As well as dolphins, seals, mackerel and bass are all expected to be lured to feed on the bounty.
Local fisherman say the beaching of so many sprat happens in the area about once a year.
“When the tide comes in there are pockets in the sand and the sprats get stranded in them. It’s not a massively rare thing,” Robert Redman, of Welsh Wild Waters, said.
“What happens is the mackerel push the sprat far into the coast – they feed on the sprat. Once they get so far in and the tide comes in, the sprat get stranded.
“That beach will be very popular today because of the amount of mackerel and bass that will come after them.”
Fisherman Aeron Griffith spotted millions of the small fish on the beach, on Saturday.
“I was going there to get some bait, but ended up taking a few of them,” he said.
“They attract predatory fish – bass, mackerel and sometimes dolphins and porpoises.
“Most of the sprat would have died as the large numbers took the oxygen out of the water and they were stranded.”
He said he returned to the area earlier and “caught a few nice bass and mackerel”.
“You could see where the sprat shells are, the seagulls diving in and lots of fish splashing about,” he said.
Courtesy of BBC News