Large numbers of dead fish were found near Lim Chu Kang jetty yesterday morning, washed up on the shore or afloat at sea. There are about 50 fish farms along this stretch of water on the West Johor Strait. The fish farmers have ruled out a plankton bloom. In February last year, a plankton bloom killed an estimated 500 to 600 tonnes of fish along the East Johor Strait.

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Lim Chu Kang fish deaths 'due to low oxygen levels'