Sailfin Armoured Catfish (Pterygoplichthys sp.)
Lower Seletar Reservoir, 30th June 2016

Several species of Sailfin Catfishes (Pterygoplichthys spp.) have been introduced to various parts of the world, probably due to the release and abandonment of aquarium pets.

Three similar-looking species of Sailfin Armoured Catfish are believed to have feral populations in Singapore:

Amazon Sailfin Catfish (Pterygoplichthys pardalis)

Vermiculated Sailfin Catfish (Pterygoplichthys disjunctivus)

Spotted Sailfin Catfish (Pterygoplichthys joselimaianus)

Penang Local Government committee chairman Chow Kon Yeow shows the dead fishes found at a river’s basin in Air Itam. Photo by AMIR IRSYAD OMAR

Malaysia: Swift action to combat river pollution in Penang
By Predeep Nambiar, 26th June 2015;

The recent discovery of dead fishes at a river basin here could have been caused by illegal discharge from nearby businesses, authorities say.

Local Government committee chairman Chow Kon Yeow said initial investigations showed the two outlets; a vegetarian food processing outfit and a laundromat could be the culprit.

“This clearly shows the mentality of some businesses who continue to pollute our rivers.”

“I have ordered the Penang Island City Council (MBPP) to order these businesses to be closed if they are found to be the culprits,” he said at a press conference yesterday.

Chow led a visit to one of three floodwater basins of the river, with officials from the state Environment Department and Drainage and Irrigation Department in tow.

On Monday, residents near the upstream of Sungai Dondang here discovered at least 100 dead fishes washed ashore.

The finding at one of the basins prompted an investigation by the Environment Department, with samples collected on Tuesday.

Meanwhile, state Environment director Norhayati Yahya said the condition of the two other basins were good, with no dead fishes found there.

“Basins A and C recorded normal pH levels of 6. Our concern is Basin B where the dead fishes were found.”

“We have sent the samples to the Chemistry Department for analysis and we expect the results to be out in two weeks.” she said.

River quality is usually determined by its pH level, nitrate and phosphate contents and dissolved oxygen values, via chemical tests.

As a long-term solution, Chow announced that village security and development committees will ‘adopt’ parts of the river to keep polluters at bay.

“The people can be the eyes and ears of our rivers as we have limited resources,” he said.

State Drainage and Irrigation director Anuar Yahya urged the public to report polluters at 04-650-5145.

Sungai Dondang is one of the six tributaries of infamous Sungai Pinang, which was once the dirtiest rivers in Malaysia.

The other tributaries are Sungai Air Terjun, Sungai Kecil, Sungai Air Putih, Sungai Air Hitam, and Sungai Jelutong

In 2006, Sungai Pinang was ranked Class V, the highest pollution level under the Malaysia Water Quality Index.

Last year, the river’s cleanliness improved, hovering between Class II and III.

Source: New Straits Times

The dead fishes in the photo are Sailfin Catfishes (Pterygoplichthys sp.), which are originally from South America.

Resident nearby the polluted Sungai Dondang, Goh Kheng Tian, 45, points out the dead fishes washed ashore while Penang Local Government, Traffic and Flood Mitigation committee chairman Chow Kon Yeow looks on. Photo by Masry Che Ani

Malaysia: Fishy deaths alert residents of river pollution
By Edmund Lee, 25th June 2015;

The source of pollution of Sungai Dondang in Paya Terubong here has been narrowed to two outlets, a vegetarian food processing outfit and a laundromat.

The investigation comes after residents nearby reported scores of dead fish near the river banks over the past few days.

Penang local government committee chairman Chow Kon Yeow said there will be no compromise in taking action against businesses polluting the river which is a tributary of Sungai Pinang.

He said the Penang Island Municipal Council was taking the matter seriously and will act accordingly against those responsible for discharging pollutants into the river.

He felt sad marine life had died and urged the public to take on the responsibility to ensure rivers remained clean.

He called on village development and security committees to keep watch on polluters.

“They can help us stop pollution,” he told a press conference after a visit to the river today.

The Penang Drainage and Irrigation Department has taken river water samples for testing with the results to be known in about two weeks.

The fish deaths came after Chow celebrated the presence of otters at Sungai Pinang on his Facebook page recently.

Source: The Sun Daily

The dead fishes in the photo are Sailfin Catfishes (Pterygoplichthys sp.), which are originally from South America.

River of death: A resident taking a closer look at the fishes found dead in Sungai Dondang in Paya Terubong.

Malaysia: Fishy deaths probed
By Christopher Tan, 25th June 2015;

The death of hundreds of fishes in Sungai Dondang and Sungai Pinang has raised concerns about toxic chemicals being discharged into the Penang rivers.

State Drainage and Irrigation Department (DID) director Anuar Yahya said they went to collect the water samples from both rivers yesterday after being alerted by the public.

“The samples have been sent for analysis to determine the cause of pollution,” he said, adding that the water from Sungai Dondang flowed into Sungai Pinang.

It was reported that residents living in Paya Terubong near the Sungai Dondang had noticed the dead fishes floating in the river on Monday evening.

And just a few days ago, a family of 10 Smooth-coated Otters (Lutrogale perspicillata) had taken up residence along Sungai Pinang.

Local Government Committee chairman Chow Kon Yeow, who was elated with the development, had posted photographs of the mammals on his Facebook page.

Sungai Pinang was categorised in 2006 as one of the seven most polluted rivers in the country, earning a dubious Class Five ranking – the highest pollution level under Malaysia’s Water Quality Index.

Chow said Sungai Pinang pollution tests fluctuated between Class Two and Three levels last year.

Source: The Star

The dead fishes in the photo are mostly Sailfin Catfishes (Pterygoplichthys sp.), which are originally from South America.

Amazon Sailfin Catfish (Pterygoplichthys pardalis)
Tanah Merah Country Club, 30th June 2014

These photos of a dead Amazon Sailfin Catfish were shared by Yap Xinli.

Find out how you can contribute to Monday Morgue too.

Several species of Sailfin Catfishes (Pterygoplichthys spp.) have been introduced to various parts of the world, probably due to the release and abandonment of aquarium pets.

Two similar-looking species of Sailfin Armoured Catfish are believed to have feral populations in Singapore:

Amazon Sailfin Catfish (Pterygoplichthys pardalis)

Vermiculated Sailfin Catfish (Pterygoplichthys disjunctivus)

Based on the pattern of spots on the abdomen, this carcass is most likely that of an Amazon Sailfin Catfish.

Sailfin Catfish (Pterygoplichthys sp.)
Lorong Halus, 24th March 2013

This photo of a Sailfin Catfish was shared by Nikita Hengbok.

Find out how you can contribute to Monday Morgue too.

Several species of Sailfin Catfishes (Pterygoplichthys spp.) have been introduced to various parts of the world, probably due to the release and abandonment of aquarium pets.

Two similar-looking species of Sailfin Armoured Catfish are believed to have feral populations in Singapore:

Amazon Sailfin Catfish (Pterygoplichthys pardalis)

Vermiculated Sailfin Catfish (Pterygoplichthys disjunctivus)