finning dogfish

[niko]

it seems at this time of year i always see giant schools of dogfish on top. are they just following the bait in,are they trying to warm up in the sun, breeding. anyone have a clue? there were so many of them you could walk on the water wed. we stopped and messed w/ them (the guy w/ me had never seen anything like it before) and put a pog in a livewell net and they would swim right into it. i put on a glove and snatched one out of the water.