Despite the diversity, there is growing evidence that population of many shark species are increasingly threatened with extinction. Shark population has mainly been declining due to overfishing and habitat degradation. Many shark species are also caught as bycatch in fishing operations, which poses serious threat to their survival. They are often caught in industrials and small-scale fisheries by different types of fishing gears and techniques such as trawl nets, gillnets, purse seine and longlines. There has also been a rapid growth in the demand for shark products, particularly fins, in the global market. The poorly monitored and largely unregulated global trade and demand is outpacing the productivity of these slow growing species, leading to the worldwide overexploitation of many sharks species.