Table 1. Life history information of main prey species.

Factors influencing population resilience	Prediction	Rock oyster	Tropical periwinkle
Resource Aggregation/Clustering	High aggregation → slow recovery	High aggregation	High aggregation
Size and age at sexual reproductive maturity	Large size at sexual maturity → slow recovery	Large: first year grows 25 mm Able to reproduce in the first year	Small: first year grows 14 mm (17.44 mm second year). Reproduced in second year
Reproductive output (per individual)	High reproductive output → fast recovery	High (50 to 200 million)	Low (10.000–100.000) Only 2% survive until sexual maturity
Larvae stage	Attached → slow recovery	Unattached: Planctonic larvae	Unattached: Planctonic larvae