Possible Tresher or Silky Sharks display mating behavior in shallow water at Bahia de La Paz

A group of sharks (app.6-10), by the looks of tail fin Tresher Sharks has been sighted at the La Paz Malecon just a few meters of the beach. By there movements observed in video I guess is is some kind of a mating behavior then a feeding frenzy. I did observe a simular behavior with leopard sharks on  - remote - Baja California Sur beaches just within feet of the shoreline. Thats normaly during February - March. The Leopard Sharks "hang out" for about 3 weeks and then disappear again. What makes it different on this occasion is the location - right at the Malecon in La Paz in front of the Hotel Perla plus the type of shark. I was personal not present to identify the sharks and by observing the video I would say Tresher. What I can confirm is that there are Whalesharks around feeding in the bay. I got informed from a scuba friend on the video, the original post can be seen on this La Paz Blog.