There was overall strong spawning success there from 1993 through 2003, with slightly lower levels from 2004 through 2010. The spawning stock biomass (SSB) peaked in 2004 at an estimated 80,000 metric tons of fish and has declined to about 60,000 metric tons today. Back in the bad old days, the SSB was estimated to be less than 5,000 metric tons, so there are plenty of spawners available. In fact, the young-of-the-year (YOY) index for 2010 was the fifth highest since 1970, but for 2011 it was one of the lowest, and 2012's was slightly under the median. Scientists haven't been able to pinpoint specific environmental problems that are responsible, and there is growing suspicion that angler harvest of 40-plus-inch bass has played a role. The current assessment indicates that the SSB is large enough to sustain the stocks, the stocks are not currently overfished, and fishing mortality has already been declining over the past few years.