LakeAriel.... I grew up in Westfield, New Jersey. Over the years I spent a lot of time in Long Branch & Sea Bright.
You are right, shark attacks are rare along the New Jersey shore. However, in July 1916 five swimmers were attacked in New Jersey by sharks over a several day period. Four out of the five victims died.
Today in New Jersey you have a better chance of being attacked by a New Yorker than a shark!