The mud crab and milk-fish are housed together in large (10 metre by 10 metre) bottom-net cages, rather than traditional bamboo cages which are less durable. And the crabs are highly tolerant to varying salinity conditions. But on average if you follow the above mentioned ways, then you can expect to have a production of 300 to 350 kg from a 0.1 hectare pond. This is partly because of the limited research-funding available, but also because of a desire to ensure that traditional fishers are not displaced in the interest of efficiency but, rather, are helped to improve their own practises. If you stock the crabs directly into the pond, then the stocking density will be 1 crab per square meter. Once the crablets are large enough, they can be put into ponds for fattening. While crab meat is not yet a big part of the traditional Indonesian diet, crabs are already big business, here and globally. Question on initial viral load and disease progression of Covid-19, A Health check App sensitive to asymptomatic COVID may be in the works, Science X Daily and the Weekly Email Newsletter are free features that allow you to receive your favorite sci-tech news updates in your email inbox. And the mud crab is mainly found in the estuaries and mangroves of Asia, Africa and Australia. Generally female mud crabs weighting around 100 grams, and male crabs weighting around 200 grams are stocked and raised for fattening purpose. Meanwhile, over reliance on wild crabs is diminishing the stock. But if you stock in cages, then stock 1 crab per cage. This story is published courtesy of The Conversation (under Creative Commons-Attribution/No derivatives). part may be reproduced without the written permission. It continues to be widely practised, often using methods that have changed little over the centuries. Aquaculture has been practised in Indonesia since around CE 1400, when people began trapping milk-fish in coastal ponds. The mud crab fattening program in the mangrove areas is an excellent way of producing food through aquaculture without sacrificing the environment. Crabs like the taste of their flesh too. In recent years, more than half of the crabs exported from Indonesia have been going to the US. In Jakarta, enjoying the tasty crustaceans has become a hot trend, as more restaurants with names like The Holy Crab and Cut the Crab open up. Good luck and may God bless you! Fill the tank with clean freshwater and add sea salt to create a salinity level of.3 parts per thousand. And with this, more people not only in Indonesia but in other parts of the world can enjoy delicious crab meals for decades to come. Life cycle of the blue swimmer crab. And the size of the pond can be between 0.1 and 0.6 hectare. And with this, more people not only in Indonesia but in other parts of the world can enjoy delicious crab meals for decades to come. pH level of the water should be between 8.0 and 8.5. Access to such information will allow farmers to improve the growth rate of their crabs. In Indonesia, many farmers concentrate on fish such as milk-fish Chanos chanos and tilapia Oreochromis spp. Fit your fingers under the flap and pull up and twist to remove … In 2011 alone, the nation exported crabs worth US$262 million to the US, more than other large exporters such as China, Vietnam, the Philippines and Thailand. Privacy Policy Install one mechanical filtration system to filter crab waste in the tank. These gates can regulate the inflow and outflow of the tidal water. Mangrove trees in the center of the pen provide shade for the crabs. It's notoriously difficult to hatch and rear crabs. You will need to pump in the seawater in areas where tidal water is not available. In Jakarta, enjoying the tasty crustaceans has become a hot trend, as more restaurants with names like The Holy Crab and Cut the Crab open up. Developing research projects with farmers enables them to continue to farm in their local ponds, as they have for generations.