Indonesia: More Dead Fish Found Floating in North Jakarta Waters

By Carlos Roy Fajarta, 17th December 2015;

Thousands of dead fish have again washed up on the north coast of Jakarta in the past few days, presumably due to a lack of oxygen in the polluted waters.

“In the morning, I found just a few dozen dead fish [floating on the water] but as hours went by, the number grew to hundreds and it created a foul stench,” Bambang, a 47-year-old fisherman at Muara Angke port said on Thursday.

He added: “It is not unusual that many fish die, like this. But this year, there has been an increase both in the frequency and the volume.”

In late November, a large number of dead fish were found in waters near Ancol Dreamland, an amusement park in North Jakarta.

The Jakarta Environmental Agency (BPLHD) said it would take samples of the dead fish and the water at Muara Angke for analysis.

Earlier this month, the agency said it suspected Ancol fish deaths were caused by industrial pollution.

Source: Jakarta Globe

Indonesia: More Dead Fish Found Floating in North Jakarta Waters

Indonesia: More dead fish found floating in North Jakarta waters

By Carlos Roy Fajarta, 17th December 2015;

Thousands of dead fish have again washed up on the north coast of Jakarta in the past few days, presumably due to a lack of oxygen in the polluted waters.

“In the morning, I found just a few dozen dead fish [floating on the water] but as hours went by, the number grew to hundreds and it created a foul stench,” Bambang, a 47-year-old fisherman at Muara Angke port said on Thursday.

He added: “It is not unusual that many fish die, like this. But this year, there has been an increase both in the frequency and the volume.”

In late November, a large number of dead fish were found in waters near Ancol Dreamland, an amusement park in North Jakarta.

The Jakarta Environmental Agency (BPLHD) said it would take samples of the dead fish and the water at Muara Angke for analysis.

Earlier this month, the agency said it suspected Ancol fish deaths were caused by industrial pollution.

Source: Jakarta Globe

Indonesia: More dead fish found floating in North Jakarta waters

Indonesia: Fish from Jakarta seas are edible: Governor Ahok
By Edna Tarigan, 2nd December 2015;

Fish from the sea around Jakarta are edible, Jakarta Governor Basuki “Ahok” Tjahaja Purnama has said, following the discovery of tens of thousands of dead fish along Ancol Beach in North Jakarta on Monday.

According to Ahok, there was no need for people to panic as the dead fish were only found on the beach and the phenomenon was related to a lack of oxygen.

“Research by the Indonesian Institute of Sciences [LIPI] said that the fish died because they ran out of oxygen in the water; not due to contaminated seawater,” Ahok said at City Hall on Wednesday.

According to LIPI’s Research Center for Oceanography, the discovery of dead fish along Ancol Beach on Sunday and Monday was a result of a booming population of a particular phytoplankton, which led to a decreased level of oxygen.

“The density of the phytoplankton is between 1 million and 2 million cells per liter,” LIPI stated on Wednesday, adding that the peak of the phenomenon occurred between Monday morning and Monday afternoon.

Previously, LIPI conducted interviews with several workers at Ancol Beach and water control officers from city-run firm PT Pembangunan Jaya Ancol, who said that the seawater was a darker color than usual, with many black spots, from Saturday until Monday.

Source: Jakarta Post

Indonesia: Phytoplankton population explosion caused death of fish in Ancol: Indonesian Institute of Sciences

2nd December 2015;

The mass death of fish, found washed ashore North Jakartas Ancol Dream Land beach, was due to a population boom of the Coscinodiscus species of phytoplankton, noted the Indonesian Institute of Sciences (LIPI).

In a press statement here on Wednesday, the Oceanic Research Center of LIPI said the phytoplankton population had significantly reduced the oxygen content in the water.

According to LIPI, based on tests conducted on the water samples taken from three locations on Ancol beach on Tuesday, the oxygen content in the water was found to be very low at only 0.765 milliliters per liter (ml/L), while the normal oxygen level is about four to five ml/L.

The low content of dissolved oxygen is the cause of the mass death of fish at Ancol beach. Based on the observation, the density of phytoplankton was recorded at one to two million cells per liter of water.

Coscinodiscus spp. is one of the species that is actually not dangerous, but since it has a large number of cells, it absorbs a significant amount of oxygen, thereby resulting in a drop in the levels of dissolved oxygen in the water.

Thousands of dead fish were found washed up along the Ancol beach early on Monday.

The fish species found dead included Milkfish (Chanos chanos), Mullet (F. Mugilidae), and Snapper (F. Lutjanidae).

Source: Antara

Indonesia: Phytoplankton population explosion caused death of fish in Ancol: Indonesian Institute of Sciences

Indonesia: Swimming With the Fishes
By Agung Rajasa, 1st December 2015;

Workers remove dead fish washed up along Ancol beach in North Jakarta.

The city’s Fisheries and Marine Agency said the phenomenon could be due to extreme changes in weather, with strong rain and winds increasing wave action and depleting the water of dissolved oxygen, causing the fish to die.

Source: Jakarta Globe

Indonesia: Thousands of fish found dead in Ancol

1st December 2015;

Thousands of dead fish of various species washed up along Ancol beach in North Jakarta on Monday, allegedly due to toxin contamination from nearby rivers.

“Ancol management reported that it had found many dead fish on its beach early on Monday morning. When we arrived at the scene, there was around a ton of fish washed up on it,” said law enforcement head of Jakarta Water Police division Comr. Edi Guritno.

He added that there were various types of fish, such as Snapper (F. Lutjanidae), Mullet (F. Mugilidae), Grouper (SubF. Epinephelinae) and Milkfish (Chanos chanos).

According to Edi, after the report, the water police immediately took measures to remove the dead fish from the coastline, as well as investigating the cause of their deaths.

He added that the police, in cooperation with Ancol management, had deployed a pickup truck and plastic bags to take the fish from the shore to the Ancol garbage dump, where they would be burned.

Edi said the police had sent samples of the fish and sea water to the Jakarta Maritime, Agriculture and Food Security Agency (KPKP) for scientific examination to confirm the cause of death.

Nonetheless, Edi said that the Ancol management and residents suspected that the fish had died of poisoning from pollutants carried by rivers that flowed into the sea in the Ancol area.

Separately, head of the KPKP’s fisheries division, Lilik Litasari, offered a similar interpretation.

Lilik told reporters that she had met with a number of Ancol management staff and residents and also examined the condition of the water.

Based on her preliminary investigation, she concluded that the waters had been contaminated with hydrogen sulfide (H2S), a colorless poison carried in the mud from the rivers. According to her, the H2S deprived the sea water of oxygen, causing the death of the fish.

According to her, the poisonous mud had possibly flowed to the sea during rain last Friday and Saturday.

“This is a phenomenon that usually occurs early in the rainy season after a long drought. A large volume of water flows from the land to the sea, carrying along sediment that has been deposited in the rivers,” Lilik said.

However, Lilik emphasized that the current theory was only based on the preliminary analysis and that the agency would make a final conclusion after receiving results from the laboratory.

She revealed that Monday’s incident was not the first for Ancol’s management, as it had experienced a similar phenomenon previously, although not with an amount of dead fish as large as this.

Ancol management said that a similar incident occurred three years ago.

According to Pembangunan Jaya Ancol corporate communications manager Rika Lestari, the management had predicted Monday’s incident for over a week before the dead fish were discovered.

“A week ago, our field officers predicted this would occur as they saw foam on the sea water,” Rika said.

She added that in the name of safety the management was currently asking beach visitors not to swim on the beach.

Responding to the issue, an environmental activist from Indonesian Forum for the Environment (Walhi), Mukri Friatna, urged the Jakarta administration to quickly examine the quality of its sea water considering that Monday’s incident was not the first of its kind.

He said that by examining the sea water the administration could identify what substances were in the water and thus discover if the water was polluted because of natural toxins or a result of bad waste management.

“In the end, they [the officials] can decide the best measures to reduce contamination in Jakarta’s seas,” Mukri said.

Source: Jakarta Post

Indonesia: Thousands of fish found dead in Ancol

Thousands of dead fish have flooded the waters of Ancol, North Jakarta.
Photo: Antara/M Agung Rajasa

Indonesia: Jakarta Environmental Agency: Industrial waste may be to blame for Ancol fish deaths
1st December 2015;

The Jakarta Environmental Agency, or BPLHD, suspects the deaths of thousands of fish in the waters of Ancol, North Jakarta, were caused by industrial pollution, an official said on Tuesday.

“We have to check the water quality. It is possible that [the deaths] were caused by industrial waste since 13 rivers flow into Ancol,” BPLHD head Junaedi told CNN Indonesia on Tuesday.

A BPLHD team will collect water samples from the Jakarta Bay and rivers around Ancol for further investigation. The Jakarta Police’s forensic laboratory (Puslabfor) and the city’s Fisheries and Marine Agency will also join the case.

“The Fisheries and Marine Agency will take samples and the police will help analyze the case,” Junaedi said.

A similar incident last year was caused by garbage choking the city’s rivers after a shift in seasons, he said.

“[In 2014], the wet season brought pouring rain, which washed away garbage and waste into the rivers, leading to a lack of oxygen in the water and killing the fish,” he explained.

“But in the current case, we are still in the process of discovering what exactly has caused the phenomenon [fish deaths] — whether it is industrial waste or a change in seasons,” he added.

If industrial waste is proven to be the culprit, Jakarta Governor Basuki Tjahaja Purnama announced on Monday he will force the closure of the companies and factories responsible.

“But for now, just let the BPLHD do its job,” he said.

Source: Jakarta Globe