Predictions & Data for this entry
| Model: abj | climate: MA | migrate: | phylum: |
| COMPLETE = 2.4 | ecozone: MPSW, MI | food: biP, jiAa | class: |
| MRE = 0.148 | habitat: 0jMp, jiMb | gender: Hh | order: |
| SMSE = 0.061 | embryo: Mp | reprod: O | family: |
Zero-variate data
| Data | Observed | Predicted | (RE) | Unit | Description | Reference |
|---|---|---|---|---|---|---|
| ab | 0.8333 | 0.8487 | (0.01844) | d | age at birth | Beck1981 |
| tj | 7 | 6.947 | (0.007618) | d | time since birth at metamorphosis | Beck1981 |
| am | 3.65e+04 | 3.65e+04 | (3.031e-05) | d | life span | Wiki |
| Lp | 20 | 20.01 | (0.0002609) | cm | shell lenght at puberty | Wiki |
| Li | 137 | 124.1 | (0.09405) | cm | ultimate shell height | Wiki |
| L10 | 2.6 | 5.414 | (1.082) | cm | shell length at 10 month | Beck1981 |
| L17 | 8.3 | 8.99 | (0.08314) | cm | shell length at 17 month | Beck1981 |
| L9 | 52 | 46.67 | (0.1025) | cm | shell length at 9 yr | Bonh1965 |
| Wwb | 5.23e-07 | 5.197e-07 | (0.006228) | g | wet dry weight at birth | Wiki |
| Wwi | 2e+04 | 2.069e+04 | (0.03474) | g | ultimate wet weight | Wiki |
| Ww115 | 1.7e+04 | 1.646e+04 | (0.03165) | g | wet weight at 115 cm | Wiki |
| Ri | 1.37e+06 | 1.372e+06 | (0.001394) | #/d | ultimate reproduction rate | Wiki |
| dLj | 0.03288 | 0.01777 | (0.4595) | cm/d | growth rate at settlement | Beck1981 |
Pseudo-data at Tref = 20°C
| Data | Generalised animal | Tridacna gigas | Unit | Description |
|---|---|---|---|---|
| v | 0.02 | 0.02311 | cm/d | energy conductance |
| p_M | 18 | 0.4883 | J/d.cm^3 | vol-spec som maint |
| k_J | 0.002 | 6.222e-05 | 1/d | maturity maint rate coefficient |
| k | 0.3 | 0.3 | - | maintenance ratio |
| kap | 0.8 | 0.831 | - | allocation fraction to soma |
| kap_G | 0.8 | 0.7998 | - | growth efficiency |
| kap_R | 0.95 | 0.475 | - | reproduction efficiency |
Discussion
- kap_R is set at 0.95/2 because of hermaphroditism
- Extremely low estimate for [p_M] probably links to symbiosis
- In view of low somatic maintenance, pseudodata k_J = 0.002 1/d is replaced by pseudodata k = 0.3
- Reproduction efficiency kap_R has been set to 0.95/2 because the species is simultaneous hermaphroditic
Facts
- Mantle's edges have symbiontic zooxanthellae and the tendency to grow massive calcium carbonate shells (Ref: Wiki)
- Hermaphrodite (Ref: Wiki)
- A single pair of the crab Xanthasia murigera will often be found living within the cavity of the clam (Ref: EoL)
Bibliography