212
10. Life-Stage-Based Recovery Dynamics of Marine Invertebrates
INFLOWS:
MATURE_P_JUV IMM =
P_JUV_IMMIGRANTS *INST_SURV_P_JUV* (l /p_JUVENILE_STAGE_DU
RATION)
OUTFLOWS:
DIE_P_ADULT_2 = (1P_ADULT_SURVIVORSHIP)*LAG_P_ADULT_2 /DT
P_LIFESPAN_2 = LAG_P_ADULT_2*p_ADULT_SURVIVORSHIP
INST_SURV_P_JUV =
EXP(LOGN(P_JUVENILE_SURVIVORSHIP)* (l /p_JUVENILE_STAGE_D
URATION) *DT)
LAG_P_ADULT_2 =
DELAY(P_MATURE_IMMIGRANT_ADULTS,P_ADULT_STAGE_DURATION)
P_JUV_ADVECTION = 0
polydora Life-stages Model
P_ADULT(t) = P_ADULT(t-dt) + (MATURE_P_JUV-DIE_P_ADULTP_LIFESPAN) * dt
INIT P_ADULT = 0
INFLOWS:
MATURE_P_JUV = LAG_P_JUV*P_JUVENILE_SURVIVORSHIP
OUTFLOWS:
DIE_P_ADULT = (l-P_ADULT_SURVIVORSHIP)*LAG_P_ADULT /DT
P_LIFESPAN = LAG_P_ADULT*P_ADULT_SURVIVORSHIP
P_JUVENILES(t) = P_JUVENILES(t-dt) + (MATURE_P_LARMATURE_P_JUV-DIE_P_JUV) * dt
INIT P_JUVENILES = 0
INFLOWS :
MATURE_P_LAR =
P_LARVAE*INST_SURV_P_LARVAE*(l /P_LARVAL_STAGE_DURATION)
OUTFLOWS :
MATURE_P_JUV = LAG_P_JUV*P_JUVENILE_SURVIVORSHIP
DIE_P_JUV = (l-P_JUVENILE_SURVIVORSHIP)*LAG_P_JUV /DT
P_LARVAE(t) = P_LARVAE(t-dt) + (P_HATCH-MATURE_P_LARDIE__P_LAR) * dt
INIT P_LARVAE = 69400
INFLOWS:
P_HATCH
P_WEEKLY_EGGS