Predictions & Data for this entry
| Model: std | climate: MB, MC | migrate: | phylum: |
| COMPLETE = 2.5 | ecozone: MAE, MAm | food: biCi, biCvf | class: |
| MRE = 0.066 | habitat: 0iMpe | gender: D | order: |
| SMSE = 0.011 | embryo: Mv | reprod: O | family: |
Zero-variate data
| Data | Observed | Predicted | (RE) | Unit | Description | Reference |
|---|---|---|---|---|---|---|
| ab | 365 | 369.5 | (0.01246) | d | age at birth | guess |
| tp | 1350 | 1848 | (0.369) | d | time since birth at puberty | AnAge |
| am | 7665 | 7653 | (0.001512) | d | life span | AnAge |
| Lb_DW | 8 | 8.022 | (0.002812) | cm | disc width at birth | Wiki |
| Lb | 20 | 13.54 | (0.3228) | cm | total length at birth | Wiki |
| Lp_DWf | 31 | 34.83 | (0.1236) | cm | disc width at puberty for females | YigiIsme2012 |
| Lp_f | 62.5 | 58.81 | (0.05908) | cm | total length at puberty for females | YigiIsme2012 |
| Lp_DWm | 29 | 31.95 | (0.1017) | cm | disc width at puberty for males | YigiIsme2012 |
| Lp_m | 62.5 | 53.94 | (0.137) | cm | total length at puberty for fmales | YigiIsme2012 |
| Li_DWf | 140 | 74.27 | (0.4695) | cm | ultimate disc width | wiki |
| Ri | 0.03397 | 0.03422 | (0.007396) | #/d | maximum reprod rate | Wiki |
Uni- and bivariate data
| Data | Figure | Independent variable | Dependent variable | (RE) | Reference |
|---|---|---|---|---|---|
| tL_f | ![]() | time since birth | total length | (0.05582) | YigiIsme2012 |
| tL_m | ![]() | time since birth | total length | (0.05167) | YigiIsme2012 |
| LW_f | ![]() | total length | weight | (0.2402) | YigiIsme2012 |
| LW_m | ![]() | total length | weight | (0.2699) | YigiIsme2012 |
| LL_f | ![]() | total length | disc width | (0.04013) | YigiIsme2012 |
| LL_m | ![]() | total length | disc width | (0.0458) | YigiIsme2012 |
Pseudo-data at Tref = 20°C
| Data | Generalised animal | Dasyatis pastinaca | Unit | Description |
|---|---|---|---|---|
| v | 0.02 | 0.01324 | cm/d | energy conductance |
| p_M | 18 | 74.3 | J/d.cm^3 | vol-spec som maint |
| k_J | 0.002 | 0.004046 | 1/d | maturity maint rate coefficient |
| k | 0.3 | 0.2859 | - | maintenance rate coef. |
| kap | 0.8 | 0.9363 | - | allocation fraction to soma |
| kap_G | 0.8 | 0.797 | - | growth efficiency |
| kap_R | 0.95 | 0.95 | - | reproduction efficiency |
Discussion
- males are assumed to differ from females by {p_Am} only
- temperatures are guessed
- expected age at birth of 707 d seems very long; relative growth is still fast at 16 yr, while life span is 21 yr; absolute growth is very slow. This questions aging method
Facts
- mother feeds neonates with uterine milk (Ref: fishbase)
Bibliography


