Predictions & Data for this entry
| Model: abj | climate: MA, MB, MC | migrate: | phylum: |
| COMPLETE = 2.5 | ecozone: MC | food: biP | class: |
| MRE = 0.036 | habitat: 0jMp, jiMi | gender: Hh | order: |
| SMSE = 0.004 | embryo: Mp | reprod: O | family: |
Zero-variate data
| Data | Observed | Predicted | (RE) | Unit | Description | Reference |
|---|---|---|---|---|---|---|
| ts | 8 | 7.965 | (0.004337) | d | time since birth at settlement | AlAiSath2014 |
| am | 511 | 509.1 | (0.003759) | d | life span | sms |
| Lj | 0.25 | 0.2555 | (0.02213) | cm | basal diameter at metam | Spiv1989 |
| Lp | 0.75 | 0.7454 | (0.006132) | cm | basal diameter at puberty | Spiv1989 |
| Li | 1.85 | 1.779 | (0.03841) | cm | ultimate basal diameter | SimpHurl1998 |
| Wwb | 1.63e-06 | 1.62e-06 | (0.006309) | g | wet weight at birth | BarnBarn1956 |
| Wwi | 4.688 | 4.76 | (0.01527) | g | ultimate soma wet weight | Spiv1989 |
| Ri | 547.9 | 547.7 | (0.0004047) | #/d | reprod rate at 15.6 mm basal diameter | sms |
Uni- and bivariate data
| Data | Figure | Independent variable | Dependent variable | (RE) | Reference |
|---|---|---|---|---|---|
| tL1 |   | time since settlement | basal diameter | (0.1232) | SimpHurl1998 |
| tL2 | | time since settlement | basal diameter | (0.06822) | SimpHurl1998 |
| tL3 | | time since settlement | basal diameter | (0.08232) | SimpHurl1998 |
| tL4 | | time since settlement | basal diameter | (0.06281) | SimpHurl1998 |
Pseudo-data at Tref = 20°C
| Data | Generalised animal | Amphibalanus amphitrite | Unit | Description |
|---|---|---|---|---|
| v | 0.02 | 0.02012 | cm/d | energy conductance |
| p_M | 18 | 158.6 | J/d.cm^3 | vol-spec som maint |
| k_J | 0.002 | 0.002 | 1/d | maturity maint rate coefficient |
| k | 0.3 | 0.0555 | - | maintenance ratio |
| kap | 0.8 | 0.9917 | - | allocation fraction to soma |
| kap_G | 0.8 | 0.8083 | - | growth efficiency |
| kap_R | 0.95 | 0.475 | - | reproduction efficiency |
Discussion
- kap_R is set at 0.95/2, since the species is hermaphroditic
- In view of tL data, acceleration is assumed to start at birth and continues for some time after settlement
Facts
- Hermaphroditic, 6 nauplius stages, 1 non-feeding cyprid stage (Ref: Wiki)
- Temperature need to exceed 15 C for reproduction (Ref: Wiki)
- log10 total wt in mg = 3.106 * log10(basal length in mm) - 0.734 (Ref: Spiv1989)
- log10 total wt in mg = 1.092 * log10(soma wet wt in mg) - 1.188 (Ref: Spiv1989)
- Fertilized eggs are brooded within the mantle cavity, nauplii are released in 1-3 d (aquarium conditions) (Ref: AlAiSath2014)
Bibliography