dr. david ebert.dr. david ebert/pacific shark research center ".....from a helicopter near the cement ship i'll count 30 sharks within a mile or two of the beach. i've studied sharks all over the world and i can tell you i've never seen such high numbers that we're seeing the past few years here in monterey bay..."dr. ebbert says it's a sign the bay is healthy with an abundance of food. coincidentally, another young great white shark washed ashore last weekend between the cement ship andseascape. foul play is suspected as a cause of death. as onebeach goer commented, maybe the sharks have more to fearfrom people than the other way around. either way those signs have clearly gotten people's attention.jane/beach goer ".....i was just walking along the the beach and i saw a fin and told another woman and she saw it too...." (rob live) another beach goer suggesting perhaps those signs arecausing people to see things that aren't there. either way, the signs and the advisory remain in effect through the weekend live in ap