Organisers admit oversight in releasing invasive fish species into Selangor lake, says Fisheries DeptOnce teeming with aquatic life, Sungai Langat, near Universiti Kebangsaan Malaysia , in Bangi, Selangor, is now filled with invasive alien fish that threaten the ecosystem.
Often, when these fish grow too large to manage, fish tank owners release them into the waterways instead of killing them. Ahmad said during his last visit to Sungai Langat, he fished from midnight to dawn but only caught ikan bandaraya. Mohammad Khairul noted that some urban locations such as Sungai Klang near MidValley, Sungai Midah in Bukit Jalil and Sungai Langat near UKM, had seen a rise in the invasive fish population.
She was unhappy to learn that Selayang Municipal Council had released nearly 400kg of Chao Praya catfish, an invasive species, into a river on June 29.“The Fisheries Department is currently refining the state’s river fisheries regulations to allow for action to be taken.
“The data can assess the condition of the river, determining whether it is still healthy based on the presence of native fish or if it has been overtaken by invasive fish. Universiti Putra Malaysia Faculty of Science Biology Department lecturer Prof Dr Mohammad Noor Amal Azmai said the invasive fish had a habit of burrowing into the ground, riverbanks or ponds.
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