"Beyond the consumer applications, Professor Sagi has also been involved in research on using the prawns to combat schistosomiasis, a debilitating waterborne disease that affects around 200 million people worldwide, primarily in impoverished areas. Also known as Snail Fever, the disease is caused by parasitic flatworms called schistosomes, which use aquatic snails as an intermediate host. Anyone swimming in, or drinking water inhabited by, these snails is likely to contract the disease, which can eventually lead to liver damage, kidney failure, infertility, or bladder cancer. In children, it may also inhibit growth and mental development.
Since the prawns are voracious predators of water snails, trials are underway to determine how commercial aquaculture operations can be most effectively configured for a parallel role as snail control centers. In a recent paper, Sagi and other proponents argue that the prawns could significantly reduce the number of infected people and the cost of the drugs required to treat them, plus the prawn ponds would provide permanent sources of food and income." ars technica
These are the size I am familiar with.
I have eaten a lot of these guys in SE Asia and in fancy restaurants in Dubai, Morocco and Abu Dhabi. These are absolutely wonderful grilled with the heads on. Oil, lemon, S&P, garlic, three minutes on a side. The heads are deliciously crunchy.
This Israeli bio-engineering company has managed to raise them in tanks filled with females only. Brilliant! The males are a nuisance. They are very territorial and fight all the time, injuring each other, killing other prawns and are thus much distracted from the serious business of gaining weight and making little prawns. Yum. pl