Say the word “shark” to a New Englander these days and the mind jumps straight to great white sharks, which have seen a remarkable increase here in recent years. But great whites aren't the only sharks around. And it turns out we know little about many of the sharks that frequent New England's waters. Now there’s a new effort to understand how catch-and-release fishing of sandbar sharks impacts their survival. “We want to know if the catch and release processes is harming the fish in any way,