Bill D. I did some looking for your requested info. There is info but it varies so much that its hard to give a cogent answer. Location , fertility ,type of plankton , other fish present , time of year/year class ,and others make a huge difference with YP. Most info is on YP at age 3+ and not on yoy/daily/monthly etc over year 1 and 2. Even the energetics models are different over time.