"Boom" in RES sizes if true and due to Corbicula, then IMO it was due to the new or initial colonization population growth phase of Corbicula which resulted in a very high percentage or proportion of small individuals for a few years. Once the population stabilized and a big percentage of the population became adults the numbers (%) of small sized calms droped dramatically and growth of RES leveled out and is now probably back to normal growth rates.
Last edited by Bill Cody; 04/21/09 08:12 PM.