Snail survival data from: Invasive bryozoan alters interaction between a native grazer and its algal food. A Canadian Healthy Oceans Network Ecosystem Function Project, EF-11.

Survival of snails (Lacuna vincta) maintained in feeding arenas in the laboratory over 4 weeks on single diets of either kelp (Saccharina latissima) encrusted by the invasive bryozoan M. membranacea, non-encrusted kelp, or starved. Data for each replicate container include diet and proportion of snails surviving at start of experiment and by the end of weeks 1-4.