In Costa Rica, a company that marketed crushed shark cartilage to western pharmaceutical firms as a cancer remedy saw its monthly production soar from 1,400 to 10,000 kilograms in 1997.
2. Even with tougher fishing quotas it will take years to restore shark stocks. One reason is the lack of an international treaty on shark fishing, similar to the global accords that limit commercial catches of blue-fin tuna. Another factor is biological. Sharks are slow to reproduce, having long gestation periods and small litters.
2. There is no problem with any of the shark stock. Restrictions on shark fishing are being done just because of pressure from environmental groups.
3. There is a hope for full recovery of the shark stocks. For some reason people seem to be very concerned about the plight of sharks. There is a public fascination with these powerful predators that no other fish species can begin to rival.