Predictions & Data for this entry
| Model: std | climate: Af, Am, Aw, Cs, Cw | migrate: | phylum: |
| COMPLETE = 3.5 | ecozone: THp, TPam | food: biO | class: |
| MRE = 0.048 | habitat: 0iFr, 0iFl, 0iFp, 0iFm, 0iFc | gender: D | order: |
| SMSE = 0.008 | embryo: Fbf | reprod: Apo | family: |
Zero-variate data
| Data | Observed | Predicted | (RE) | Unit | Description | Reference |
|---|---|---|---|---|---|---|
| tp | 91.5 | 87.69 | (0.04167) | d | time since birth at puberty at 20 C | ADW |
| am | 2190 | 2190 | (2.073e-05) | d | life span | Wiki |
| Lp | 5 | 5.082 | (0.01634) | cm | total length at puberty | guess |
| Li | 11.1 | 11.22 | (0.01081) | cm | ultimate total length | WangYang2001 |
| Wwb | 0.0056 | 0.005594 | (0.001084) | g | wet weight at birth | JinaJacq2019 |
| Wwp | 6.6 | 6.707 | (0.01618) | g | wet weight at puberty | guess |
| Wwi | 72 | 72.19 | (0.002604) | g | ultimate wet weight | WangYang2001 |
| Ri | 3.288 | 3.293 | (0.001478) | #/d | max reprod rate | JinaJacq2019 |
Uni- and bivariate data
| Data | Figure | Independent variable | Dependent variable | (RE) | Reference |
|---|---|---|---|---|---|
| LW |  | total length | weight | (0.1694) | WangYang2001 |
| Tab |  | temperature | age at birth | (0.1492) | JinaJacq2019 |
| tL |  | time since birth | total length | (0.07128) | FidaCarv2001 |
Pseudo-data at Tref = 20°C
| Data | Generalised animal | Procambarus clarkii | Unit | Description |
|---|---|---|---|---|
| v | 0.02 | 0.02045 | cm/d | energy conductance |
| p_M | 18 | 4632 | J/d.cm^3 | vol-spec som maint |
| k_J | 0.002 | 0.002 | 1/d | maturity maint rate coefficient |
| k | 0.3 | 0.00192 | - | maintenance ratio |
| kap | 0.8 | 0.9854 | - | allocation fraction to soma |
| kap_G | 0.8 | 0.8 | - | growth efficiency |
| kap_R | 0.95 | 0.95 | - | reproduction efficiency |
Discussion
- Model std is applied, instead of abj, since freshwater crayfish, unlike marine decapods, have no larval stage
Facts
- Reproduces sexually, but research suggests it may also reproduce by parthenogenesis (Ref: Wiki)
- From photo: Carapace length = 0.555 * total length (Ref: https://commons.wikimedia.org/wiki/File:Rode_amerikaanse_rivierkreeft,_Red_Swamp_Crayfish,_Procambarus_clarkii_04.jpg)
Bibliography