Sharks from Prondong

My work basically is to visit every fish harbour or jetty whenever we visit a new place. Here is Prondong, somewhere near Surabaya in Indonesia. Sharks are never sold as one whole fish, very obvious, the fins and tails are very expensive and are reserved for special buyers. So at the market place, they chop them up and sells the meat while the fins and tails are collected and sold separately at a very much higher price.. for shark's fins delicacies. There are many different type of shark species some white, some dark colored ones.