Predictions & Data for this entry
| Model: std | climate: MC | migrate: | phylum: |
| COMPLETE = 2.5 | ecozone: MC | food: biP | class: |
| MRE = 0.064 | habitat: 0jMp, jiMb | gender: Hsm | order: |
| SMSE = 0.011 | embryo: Mp | reprod: O | family: |
Zero-variate data
| Data | Observed | Predicted | (RE) | Unit | Description | Reference |
|---|---|---|---|---|---|---|
| ab | 1 | 1.078 | (0.0776) | d | age at birth | NierHofm1989 |
| am | 549 | 549.5 | (0.0008236) | d | life span | Mill1952 |
| Lp | 2.3 | 2.307 | (0.002876) | cm | body length at puberty | KanaBaba2017 |
| Li | 10 | 9.501 | (0.0499) | cm | ultimate body length | Buiz1983 |
| Wwb | 1.6e-05 | 1.572e-05 | (0.01743) | g | wet weight at birth | guess |
| Wwi | 31 | 31.11 | (0.003475) | g | ultimate wet weight | guess |
| Ri | 3836 | 3800 | (0.009376) | #/d | maximum reprod rate | guess |
Uni- and bivariate data
| Data | Figure | Independent variable | Dependent variable | (RE) | Reference |
|---|---|---|---|---|---|
| tL_sum |   | time since 1 jan | body length | (0.0322) | Orto1920, Mill1952 |
| tL_spr | | time since 1 jan | body length | (0.05387) | Orto1920, Mill1952 |
| tL_2013 |   | time since 1 june | body length | (0.1161) | KanaBaba2017 |
| tL_2012 | | time since 1 june | body length | (0.1074) | KanaBaba2017 |
| tL_2011 | | time since 1 june | body length | (0.1159) | KanaBaba2017 |
| tL_2010 | | time since 1 june | body length | (0.2811) | KanaBaba2017 |
Pseudo-data at Tref = 20°C
| Data | Generalised animal | Ascidiella aspersa | Unit | Description |
|---|---|---|---|---|
| v | 0.02 | 0.03218 | cm/d | energy conductance |
| p_M | 18 | 288.9 | J/d.cm^3 | vol-spec som maint |
| k_J | 0.002 | 0.002 | 1/d | maturity maint rate coefficient |
| k | 0.3 | 0.01087 | - | maintenance ratio |
| kap | 0.8 | 0.9 | - | allocation fraction to soma |
| kap_G | 0.8 | 0.7993 | - | growth efficiency |
| kap_R | 0.95 | 0.95 | - | reproduction efficiency |
Discussion
- temperature fluctuates seasonally
Facts
- Solitary tunicate; total length tadpole 1.3 mm; after tail resorption upon settlement 0.3 mm; functional ascian in 4 d after settlement (Ref: Yama1975)
- Protandric hermaphroditic; external fertilisation (Ref: Mill1952)
- A. aspersa is host for the mussel Modiolarca subpicta (Ref: MortDine2011)
- Metamorphosis of larva starts 7 h after hatching at 20 C; feeding starts after metamorphosis (Ref: NierHofm1989)
Bibliography