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10. Life-Stage-Based Recovery Dynamics of Marine Invertebrates
4. Add intraspecific interactions into the model. For example, design a negative impact of adults and juveniles on the survivorship of settling larvae.
5. Add intelSpecific interactions into the model. For example, Nep btys is
considered a late success ional species that has negative impacts on the
more opportunistic Polydora . Try to model this realistically.
INVERTEBRATE MODEL
Nephtys Adult Immigrants Module
NEPH_ADULTS(t) = NEPH_ADULTS(t-dt)
INIT NEPH_ADULTS = 10
N_ADULT_IMMIGRANTS(t) = N_ADULT_IMMIGRANTS(t-dt) +
(N_ADT_IMM-N_LIFESPAN_ADT_IMM-DIE_N_ADT_IMMIGRANTS) *
dt
INIT N_ADULT_IMMIGRANTS = 0
INFLOWS:
N_ADT_IMM = NEPH_ADULTS *N_ADT_ADVECTION*SIZE_FACTOR*(lN_ADULT_IMMIGRANTS /NEPH_ADULTS)
OUTFLOWS :
N_LIFESPAN_ADT_IMM =
N_ADULT_ I MMI GRANTS*I NST_SURV_N_ADULT * (l / N_ADULT_S TAGE_D
URATION)
DI E_N_ADT_ I MMI GRANTS = (1IN ST_ SURV_ N_ADULT )*N_ADULT_IMMI GRANTS/ DT
I NST_SURV_N_ADULT =
EXP(LOGN(N_ADULT_SURVIVORSHIP) * (1 /N_ADULT_STAGE_DURATIO
N) *DT)
N_ADT_ADVECTION = 0
Nephthys Juvenile Immigrants Module
NEPH_JUVENILES(t)
NEPH_JUVENILES(t -dt)
INIT NEPH_JUVENILES
50
N_JUV_IMMIGRANTS(t)
N_JUV_IMMIGRANTS(t-dt) +
(N_JUV_IMM-DIE_N_JUV_IMM-MATURE_N_JUV_IMM) * dt
INIT N_JUV_IMMIGRANTS = 0
INFLOWS :
N_JUV_IMM
NEPH_JUVENILES *N_JUV_ADVECTI ON*SIZE_FACT OR*(lN_J UV_ I MMI GRANTS /NEPH_JUVENI LES )