Has crazy Spring weather effected baitfish populations this year?

[muskyjerk]

pin sized fry in pine creek near pittsburgh despite water temps around 70. North park lake lacking weeds ans gizzard shad (available in large schools in 2012 after lake was filled previous fall of 2011).

[Red Childress]

I was out chasing walleye and bass all weekend long and I did not see anywhere close to 'normal' amounts of new fry out there. Maybe things are running a little behind schedule around here but the lack of 2-4 inch bait has me confused.