Experimentally determined incipient physiological tolerance limits under laboratory conditions for adult and juvenile Pomacea insularum collected in Texas (from Ramakrishnan [31]).

For salinity and pH the ranges of values bracket the median lethal values at 28 days exposure (LD50/28). Temperature limits were statistically calculated from experimental data to yield the temperatures at which 99% mortality occurred in 28 days (LTp99). Emersion values are the maximum observed survival time of the snail out of water at the stated temperature and humidity.