Before revision:  In the case of sedentary marine populations, connectivity stems not only from the stochastic nature of the physical environment that affects early-life stages dispersal, but also by the spawning stock attributes that affect  reproductive output (e.g., passive eggs and larvae) and its survivorship , constituting the so-called spatial temporal spawner-recruit system.
After revision:  In the case of sedentary marine populations, connectivity stems not only from the stochastic nature of the physical environment that affects early-life stages dispersal, but also from the spawning stock attributes that affect reproductive output (e.g., passive eggs and larvae) and its survivorship , constituting the so-called spatial temporal spawner-recruit system.