Thursday, 30 May 2019

News - Water pollution

Reason to start farming your own fish and vegetables...

The Star - Tuesday, 28 May 2019
Serious water pollution in Penang

GEORGE TOWN: Penang is facing serious water pollution issues, both on the island and the mainland.

The sea off Teluk Bahang is said to be contaminated by heavy metals while in Nibong Tebal, the water at the Sungai Tengah river mouth is black, a problem fishermen there claim has been plaguing them for about 10 years.

The situation in the north of the island looks far more serious. Weeks ago only a few fish were found dead. Now, fishes are dying by the thousands.

This has deprived fish breeders of their source of income as thousands of ikan kerapu (grouper) are dying in fish cages.

“We use to sell about 500kgs of fish at markets and restaurants during the Chinese New Year and about 100kgs at normal times,” said breeder Lim Suan Gian, 64, at his farm in Teluk Bahang.

“However, we only managed to sell about 40 to 50kgs over the last two months as most of them ended up dead.

“We are baffled. The Fisheries Department took samples of the dead fish several times but as of today, there has been no indication of what caused the deaths,” Lim said, adding that he suffered losses of about RM130,000 since April.

Another breeder, Ooi Hye Hin, 57, said he took up a RM300,000 loan from Agro Bank to buy fish fry and now cannot pay the RM3,000 monthly payments because of this.

“Both Lim and I have made five police reports as we have no other income and are not be able to service our bank loans,” Ooi said.

He said the dead fish at the farms would have to be thrown away while those that were still alive would remain in the cages.

“We have stopped sending our fish supply to customers since April,” he added.

A check by The Star saw a white foam on the water surface surrounding the five fish farms.

There was also the spread of algae blooms in the vicinity.

“We are not experts but the blackish sea water is not oil or mud, as fish would not die because of that,” said breeder Wong Tien Swee, 37.

“The Department of Environment (DoE) and the Fisheries Department must find a solution fast before the entire aquaculture industry in this area goes under” he said.

“Some of my friends have invested about RM15,000 to RM20,000 each in my business.

“Now, I have to tell them their investments are in jeopardy,” said Wong.

Fisheries Department director Noraisyah Abu Bakar said she had written to the Agro Bank, requesting it to extend the date of Ooi’s monthly instalments.

“I understand the predicament of the fish farmers,” she said.

“We have sent samples to our lab but it will take some time before we can determine the cause of death,” Noraisyah said, adding she could confirm if the fish are safe for consumption until then.

Noraisyah added that she was also working closely with Professor Datuk Dr Aileen Tan, the Centre for Marine and Coastal Studies (Cemacs) director.

Prof Tan was the first to discover the high levels of nickel contamination in the seas of Teluk Bahang.

“We just can’t conclude that it was nickel as the DoE needs to confirm the source,” said Noraisyah.

“It would be premature for now to confirm if the fishes were killed due to nickel poisoning.”

Cemacs had reported that the level of nickel was 1,038% more than it should be in the seas near the National Park and 982% higher at the fish farms in Teluk Bahang.

Two weeks ago, Prof Tan said that the Universiti Sains Malaysia’s Chemistry Department discovered nickel in the waters off Teluk Bahang at 0.472 parts per million (ppm), 944% more than the standard 0.005ppm in typical sea water.

She said lead was found at 184% above normal or 0.804ppm, when it should be only 0.0005ppm while cadmium was 32% higher at 0.065ppm instead of 0.002ppm.

State Environment Committee chairman Phee Boon Poh said there were no reports of fishes dying or swimmers being affected by the pollution and the DoE was monitoring the situation.

“We will know the main cause of the issue and the source when the results of tests have been released,” he said.

Thursday, 25 April 2019

Reasons to grow your own food

This is a common sight behind restaurants... washing dishes on the street!!
Sorry for blurry pic

Wednesday, 10 April 2019

Seafood lovers should eat less shellfish due to heavy metal poisoning risk

Source

Seafood lovers should eat less shellfish due to heavy metal poisoning risk
Monday, 08 Apr 2019 2:48 PM MYT

KUALA LUMPUR (Bernama): Seafood lovers living on the west coast of Peninsular Malaysia are being warned to reduce their shellfish consumption because of the risk of heavy metal poisoning.

Universiti Malaysia Terengganu (UMT) School of Marine  and  Environmental Sciences marine biology programme senior lecturer, Assoc Prof Dr Ong Meng Chuan, said a team of 25 scientists and researchers detected a high concentration of heavy metals like arsenic, cadmium, plumbum and mercury around estuaries and harbours in the Straits of Malacca during a scientific voyage from March 13-22.

He said findings reveal the waters of Johor, Port Klang and Pulau Pinang are at a higher risk of heavy metal contamination.

"This situation indirectly leads to the contamination of a food source because it is in the nature of shellfish to stay put and not migrate in search of food.

"Obviously, if the water is contaminated with heavy metals, it will be passed up the food chain," he told Bernama.

The marine expedition using UMT's research vessel, RV Discovery, was carried out in conjunction with the Langkawi International Maritime and Aerospace 2019 (LIMA '19) exhibition and sailed from Kuala Terengganu to Tanjung Lembung, Langkawi.

The team collected samples from more than 45 stations along two shipping routes: the Straits of Malacca and South China Sea.

Dr Ong said many don't realise the long-term health consequences of eating contaminated food from the sea.

"Heavy metal bioaccumulation takes a long time to be detected. The build-up from eating arsenic- or mercury-contaminated food can lead to various disorders," he said.

He said the Straits of Malacca is more polluted compared with the South China Sea because it is shallow and narrow, and experiencing growth in industrial activities in the port and estuary areas.

He said river currents in estuarine waters were weaker, allowing heavy metals to easily sink and accumulate on the floor of the estuary.

Dr Ong said the government and relevant powers should ensure strict enforcement of the law to tackle heavy metal pollution.

"Perhaps a heavier penalty or tougher sentence is needed because we don't want another Sg Kim Kim incident which affected the health of over 2,000 people,” he added. - Bernama

Thursday, 14 March 2019

We need a plan

Updated 13Dec2019

Whatever we are trying is not really working. And there are too many components to keep track of. Time to draw a plan. Maybe that will also help us organise it in our heads.

Did some "digging"  and found this great site for drawing out garden plans. It's called Gardena. I don't know how to draw or use drawing software well, and yet managed this...
But had to improvise a bit... for example I used a trampoline to draw the compost bins, and white picket fence as the water tubes :)


Here are some pics of our place from different angles, to give you an idea what it really looks like.
The main garden which will house the ponds and vege boxes. It is the main green bit you see in the right half of the diagram above...

The 3 feet wide tiled & raised will have some kind of seat.storage maybe 

The tiny strip of garden we have on the other side (left side of the diagram) will have some plants , compost bins, soil and stuff storage. You can see it here.
Btw the back dog is a stray that we let in occasionally. Zoey has quite a few stray friends that pop by to see her at different times of the day!!  

Saturday, 2 March 2019

Food for the smallest fry

The newly hatched or born fry need tiny food called infusoria. I've been watching tutorials on creating and maintaining a culture. This was the clearest explanation I found.
 So it will be stinky, therefor inside the house is not an option. Outside, Zoey our dog will drink it!!
She is a strange dog. When we just got her (someone dumped her in the jungle nearby) we gave her clean water in a bowl. She had a sniff and that was the last of it. She drinks water only from our container ponds. Fish water must be the dog's version of beer or Coke.

Wednesday, 20 February 2019

What about Banana Leaves

A banana tree would be a great addition to the garden, for the bananas and also the leaves! as plates!

Sunday, 10 February 2019

Plant food source - waste water from my indoor aquariums

The plants will need food/fertilisers. Let's try to supply them with the water from the indoor aquariums. I have 2.

This is the main one. 4x2x2 feet. About 300+ litres. I have neglected it for so long. There are only 2 fish in the tank! A very shy sailfin pleco and a serpae tetra. Oh yes, and about a thousand bladder snails...
The job to revive this tank will be a huge one. I want to make it as low tech as possible, but priority will be to have a healthy environment for the inhabitants.

Off the top of my bald head I can think of...

  1. start regular water changes. The waste water will be great for the planned vege garden.
  2. get some water circulation going to mimic a gentle stream.
  3. lots of pruning
  4. slowly introduce some tank mates for the tetra
  5. slowly add some other species, maybe ghost shrimp, fighting fish, etc.
  6. address the lighting
  7. reduce the snail population.