1. Thousand of dead Tilapia were found at a river near Taman Rumpun Bahagia in Bachang.
  2. Bukit Katil MCA Youth chief Lee Chong Guan and Bukit Katil Gerakan secretary Nelson Goh Jin point at the fish carcasses.

Malaysia: Thousands of dead Tilapia end up in Malacca River
By Kelly Koh, 21st November 2016;

The sudden appearance of thousands of dead Tilapia (Oreochromis sp.) floating on the surface of the Malacca River near Taman Rumpun Bahagia in Bachang has left even the state Environment Department puzzled.

Malacca Environment Department director Shafe’ee Yasin however, confirmed that the river was not threatened by industrial pollutants.

“Initial investigations by DOE revealed that the river was not contaminated by industrial effluents as there were no factories nearby,” he said.

“We have collected samples of the river water, but we have yet to finalise its results,” he said when contacted by New Straits Times here today.

Shafe’ee said based on previous incidents of dead fish found in the Malacca River, the freshwater Tilapia can be assumed to have been killed by a sudden influx of seawater to the opening of the barrage.

“Freshwater fish living in the Malacca River may likely die as they are unable to tolerate the high salinity in the water after mixing with sea water.

"Another possibility is the effects of sediments on the fishes, where they die from low oxygen,” he added.

Shafe’ee said the department will not hesitate to take action against industrial operations found to be releasing industrial waste into the Malacca River.

“We will check and take action if industrial sites are found to be releasing effluents including during odd hours,” he added.

Checks by the New Straits Times found that the river had since been cleared of fish carcasses.

Meanwhile, Bukit Katil MCA Youth chief Lee Chong Guan and Bukit Katil Gerakan secretary Nelson Goh Jin Juan, who visited the site, urged authorities to identify to cause of the high number of dead fish.

Source: New Straits Times

Malaysia: Fishes died due to lack of oxygen

By Kelly Koh, 29th April 2015;

The death of 8000 fishes discovered in Sungai Kampung Enam in Bachang here last Monday was believed to have been caused by oxygen depletion in the river.

Chief Minister Datuk Seri Idris Haron said oxygen depletion occurred due to slow water exchange rate between the river water and the seawater.

“The gates at the barrage door control center is only half open during low tides. A long term solution to increase oxygen level in the river would be to flush out river water completely into the sea during low tide, so that new seawater can be flushed in during high tide to ensure higher oxygen content,” he said.

Idris said another cause of low oxygen content in the river was the high amount of sludge in the river.

“Thorough maintenance must be carried out to reduce the amount of sludge in the river, and this requires a massive clean-up at the river-bed,” he said during a press conference at Seri Negeri here, yesterday.

For this reason, Idris said the Malacca River Cruises would be stopped for a day or two.

“As long as we provide notice to customers, explaining to them that the river is undergoing scheduled maintenance, it should not be a problem,” he said.

Fishes that died were mostly tilapia hitam (Mozambique Tilapia)(Oreochromis mossambicus, jelanak (jenahak?) (Snapper) (F. Lutjanidae) and keli (Catfish) (Siluriformes).

Source: New Straits Times

Malaysia: Fishes died due to lack of oxygen

Marine graveyard: A resident covering his nose due to the foul smell caused by the thousands of dead fish clogging up the Malacca River.

Malaysia: There’s something fishy in the water, say residents
By R.S.N. Murali, 23rd April 2015;

Thousands of dead Tilapia (Oreochromis sp.) fish have been found floating along the Malacca River near Kampung Enam by the city centre here.

The dead fish were found floating along a 3km-long stretch of the river and preliminary checks showed the cause to be poisoning.

State Housing, Local Government and Environment committee chairman Datuk Ismail Othman said the report from the Department of Environment on the incident would be discussed at the exco meeting today.

He said tests conducted on water samples showed the river’s pH scale and oxygen level to be normal.

On Tuesday, residents living along the riverbank complained about a strong stench due to the dead fish that were clogging up the river from Kampung Enam to Bachang.

A resident named Latipah Abdul Wahab, 44, said the stench was unbearable.

“I could not even cook for the whole day because of the strong smell,” she said.

Special officer under the Development and Programme Co-ordination of Kesidang state constituency Harun Ali said it was the first time such an incident happened near the area.

“I believe it was caused by hazardous material that was discharged into the river by irresponsible individuals,” he said.

Workers from several government agencies were roped in to clear the fish carcasses and almost 95% of the affected area was cleared by 4.30pm yesterday.

Source: The Star