In Indonesia, Sri Lanka, Mexico, Japan and the Philippines mass fisheries seriously threaten manta & mobula ray populations. New demand from Asia for dried gill rakers used in traditional medicines has dramatically increased the Indonesian fisheries, threatening the local populations. The gills are used interchangeably in Chinese medicine and according to Chinese practitioners, gill rakers help to clear away heat and toxic material from the body and aid blood circulation. On the street in Southern China prices vary according to size, one outlet was sell manta gills for 220.00 USD per kilo. PAUL HILTON MANTA RAY PHOTOGRAPHER