Which survivorship curve is associated with oysters?
Oysters release enormous numbers of larvae, but most die before reaching adulthood because they receive little parental protection and face predation, starvation, and unsuitable settlement sites. The few survivors may then live much longer. This concentration of mortality in the earliest age classes produces a strongly concave Type III survivorship curve rather than the late-life losses characteristic of Type I. A survivorship curve is built from a cohort life table by plotting the proportion alive at each age. Type I concentrates mortality late, Type II approximates a constant hazard, and Typ
Ref: Ecology: Concepts and Applications, Molles, 9th Ed., Ch. 12