Predictions & Data for this entry
| Model: std | climate: MA, MB | migrate: Mo | phylum: |
| COMPLETE = 2.5 | ecozone: MASE, MIW | food: biCi, biCvf | class: |
| MRE = 0.016 | habitat: 0iMcd | gender: D | order: |
| SMSE = 0.000 | embryo: Mv | reprod: O | family: |
Zero-variate data
| Data | Observed | Predicted | (RE) | Unit | Description | Reference |
|---|---|---|---|---|---|---|
| ab | 305 | 306.3 | (0.004175) | d | age at birth | Cowl1990 |
| am | 5110 | 5123 | (0.002599) | d | life span | Cowl1997 |
| Lb | 19 | 19.35 | (0.01867) | cm | total length at birth | Cowl1997 |
| Lp | 50 | 49.92 | (0.001625) | cm | disc width at puberty | Cowl1997 |
| Lpm | 40.8 | 40.75 | (0.00132) | cm | disc width at puberty for males | Cowl1997 |
| Li | 75.5 | 79.8 | (0.05699) | cm | ultimate disc width | Cowl1990 |
| Lim | 62.6 | 64.02 | (0.0226) | cm | ultimate disc width for males | Cowl1990 |
| Wwi | 1.48e+04 | 1.474e+04 | (0.00395) | g | ultimate wet weight | Cowl1990 |
| Ri | 0.006849 | 0.006868 | (0.00271) | #/d | maximum reprod rate | fishbase |
Uni- and bivariate data
| Data | Figure | Independent variable | Dependent variable | (RE) | Reference |
|---|---|---|---|---|---|
| tL_f |   | time since birth | disc width | (0.02002) | Cowl1997 |
| tL_m | | time since birth | disc width | (0.017) | Cowl1997 |
Pseudo-data at Tref = 20°C
| Data | Generalised animal | Dasyatis chrysonota | Unit | Description |
|---|---|---|---|---|
| v | 0.02 | 0.02735 | cm/d | energy conductance |
| p_M | 18 | 20.83 | J/d.cm^3 | vol-spec som maint |
| k_J | 0.002 | 0.002 | 1/d | maturity maint rate coefficient |
| k | 0.3 | 0.5021 | - | maintenance ratio |
| kap | 0.8 | 0.9192 | - | allocation fraction to soma |
| kap_G | 0.8 | 0.8003 | - | growth efficiency |
| kap_R | 0.95 | 0.95 | - | reproduction efficiency |
Discussion
- males are assumed to differ from females by {p_Am} and E_Hp only
- Temperatures are guessed
- mod_1: males have equal state variables at b, compared to females
Facts
- length-weight: Ww in g = 1e-5*(DW in mm)^3.186 for females, 9e-6*(DW in mm)^3.2512 for males (Ref: Cowl1990)
- ovoviviparous (Ref: fishbase)
Bibliography