Source: Hilbert Montell Facebook

Some of the dead fishes seen in Sungai Oya in Sarawak, presumably casualties of a recent mass mortality event. Two of the fishes in these photos are identifiable as Fire Eel (Mastacembelus erythrotaenia), while the other two are of unidentifiable Catfishes (Siluriformes).

 

Malaysia: No reason found yet on why lobsters, fish in Oya River died


Source: Berita Harian

22nd February 2018;

The mass surfacing and and subsequent dying of aquatic life, particularly lobsters prawns and fish, in Oya River, Dalat that went viral on social media could have been caused by many factors, including poisoning.

Nanoplankton specialist Musa Musbah said 20 to 30 years ago, such phenomenon occurred not only in Dalat river but also in other rivers in Sarawak including in Niah and Sibuti areas in Miri, with varying degrees.

He was asked to comment on the so-called ‘drunken phenomenon’ of aquatic life in Oya River, which drew many comments on his Facebook page.

Musa reminded those who doubted the safety of such prawns or fish sold in the market to temporarily avoid eating them until the authorities come up with their findings and give assurance that whatever is caught from the river is safe to consume.

He did not deny that there might be some individuals who used poison to catch fish and prawns due to ignorance on its impact on health, while there might be others who did it for quick profit.

Meanwhile, Natural Resources and Environment Minister Dato Sri Wan Junaidi Tuanku Jaafar was reported in the local media as saying that the Department of Environment (DoE) would investigate and study the causes of the phenomenon.

Source: The Borneo Post

Those are not lobsters, but Giant River Prawns (Macrobrachium rosenbergii), while the fish in the photo appears to be a Helicopter Catfish (Wallagonia leerii).

 

Photo: INFO Sarawak Facebook

Malaysia: Suspected 2.8 metre killer Crocodile culled in Sg Oya
22nd November 2016;

The Sarawak Forestry Corporation (SFC) Swift Wildlife Action Team (SWAT) snared a 2.8-metre-long adult Estuarine Crocodile (Crocodylus porosus) from the waters of Sungai Oya near Mukah yesterday.

SFC in a statement yesterday said SWAT members from SFC headquarters assisted by Sibu Regional Office personnel were dispatched to Kampung Bakong, Oya earlier last week to hunt down the Crocodile which attacked and killed Sili Ismail@Esmail, 60, on Nov 11.

“The team commenced culling operations on Nov 18, 13 baited hooks were placed at locations along the river where Sili was attacked. A male Crocodile weighing about 200 kg was hooked just 100 metres from the site where the victim was attacked,” an SFC spokesperson said.

The statement also noted that the operation covered a 5km radius area from the site of the attack.

“With the successful culling of the adult Crocodile deemed capable of the attack, the operation at Sungai Oya was called off yesterday (Sunday).”>/p>

SFC also took the opportunity to extend its gratitude to all parties involved particularly the police and villagers for assistance rendered during the operation.

The spokesperson also reminded the public to be vigilant at all times when using the river.

Source: The Borneo Post