Malaysia: Caged fish breeders suffer major losses due to flood

13th January 2018;

The flood that hit the district early this month had not only caused damage to public and private properties, but also caused major losses to caged fish breeders here as they were left with thousands of dead fish.

Most of the breeders attributed the death of their fish to several reasons, including the strong river current on Jan 1 and 2 when the water level of Sungai Pahang began to rise.

Khaidir Ahmad, 55, from Kampung Tebing Tinggi, Lebak here, when contacted today said he suffered losses of more than RM33,000 after over 5,000 patin (Iridescent Shark Catfish) (Pangasianodon hypophthalmus) and Tilapia (Oreochromis spp.), as well as 300 kerai (Lemon-fin Barb) (Hypsibarbus wetmorei) fish, in his cages died during the flood.

He said the strong river current had caused the fish to suffer wounds as they were cornered and squeezed to the cage.

“The fish were also believed to have died due to the high turbidity level of the river which caused the fish gills to be covered with mud and deprived them of oxygen,” he said, adding that bacterial infection in the eyes and scales of the fish due to the deterioration in the water quality of Sungai Pahang was also believed to be the cause of death of the fish.

Meanwhile, Temerloh Fisheries Officer Shahidan Roslan said the Fisheries Department had taken samples from the live fish in order to determine the cause of death of thousands of caged fish of several breeders in the district.

He said the department had also informed the state Fisheries Department Bio-security Division, immediately after receiving a report on the incident.

Shahidan said initial inspection found that the death of patin and Tilapia fish was probably due to the strong river water pressure during the recent flood.

“The investigation revealed that most of the dead fish were found in the front area of the cage which might have received the high impact of the strong current,” he said.

Source: The Sun Daily

Blacktip Reef Shark (Carcharhinus melanopterus) @ Festival of Biodiversity, Nex, Serangoon Central, Serangoon

The Blacktip Reef Shark is one of the species of sharks that can still be found in Singapore waters, and is sometimes seen in shallow waters around our reefs in the Southern Islands. Juveniles often enter lagoons at high tide to feed on fishes, crustaceans, and cephalopods.

This pup, which was on display at the NUS Toddycats! booth at the Festival of Biodiversity, was one of thirteen juvenile sharks found entangled in a series of gillnets that had been laid in a shallow lagoon at Lazarus Island, along with 2 Blue-spotted Fantail Ray (Taeniura lymma), 18 other fishes belonging to 15 different species, 44 crabs belonging to 8 different species, as well as a single Spider Conch (Lambis lambis). It’s a graphic example of how fishing gear can kill marine animals indiscriminately if not used in a responsible manner. Not all of the animals captured in the net were suitable for human consumption, and although the owner of the nets claimed that they had only been left out for a single night when he returned to retrieve them, the highly decomposed state of some of the animals suggested that the nets had been present in the lagoon far longer than that. Protection of our marine resources such as reefs and seagrass meadows will not only involve safeguarding certain locations against impacts such as coastal development, but also creating marine protected areas and regulating potentially destructive practices.

The Festival of Biodiversity has come to an end, but the work to raise awareness about Singapore’s biodiversity continues. There are many organisations and groups involved in the ongoing efforts to not just inform the public about our nation’s biodiversity, but to also get them involved in cherishing and playing an active role in protecting our natural heritage.

#MondayMorgue #DailyDecay #Singapore #Nex #Serangoon #shark #reefshark #fish #elasmobranch #biodiversity #sgbiodiversity #wildlife #FestivalofBiodiversity #FestBiodSG #FOB2017 #FOB #FestivalofBiodiversity2017

A member of the Philippine Coast Guard paddles near dead fish found floating by the breakwater in Manila Bay yesterday.

Philippines: Fish kill discovered near Manila Bay breakwater
By Evelyn Macairan, 17th February 2015;

Oxygen depletion in the waters near the Manila Yacht Club may have caused a fish kill yesterday morning, according to the Bureau of Fisheries and Aquatic Resources (BFAR).

Dozens of dead Mullet fish (F. Mugilidae) were seen floating in Manila Bay near the breakwater at dawn, the Philippine Coast Guard (PCG) said.

Dissolved oxygen levels from three sampling stations were at 1.2, “way below the normal oxygen level of five (and above)… to be able to sustain marine life,” according to the BFAR’s initial report.

“Apparently, the water quality in the Manila Yacht Club breakwater is polluted due to stagnation, hence the cause of the fish kill,” the PCG added.

The PCG said there had been no chemical or oil spills that could cause the fish kill.

Source: The Philippine Star

Preparing for Megamouth Shark “Toothless” (Megachasma pelagios) Necropsy.

Ongoing: Rare Megamouth Shark Necropsy at Albay Park and Wildlife

Source: Rome Candaza Facebook [1], [2]