Predictions & Data for this entry
| Model: stf | climate: MA, MB, MC | migrate: | phylum: |
| COMPLETE = 3.0 | ecozone: MC | food: biP | class: |
| MRE = 0.231 | habitat: 0iMp | gender: Hsff | order: |
| SMSE = 0.141 | embryo: Mp | reprod: Aa | family: |
Zero-variate data
| Data | Observed | Predicted | (RE) | Unit | Description | Reference |
|---|---|---|---|---|---|---|
| ab | 1 | 0.9576 | (0.04236) | d | age at birth | PaffGibs1999 |
| tp_asex | 4 | 4.201 | (0.05014) | d | time since birth at puberty | PaffGibs1999 |
| am | 20.2 | 20.21 | (0.0002506) | d | life span | PaffGibs1999 |
| Lb_asex | 0.1 | 0.1438 | (0.438) | cm | length at birth, asex generation | PaffGibs1999 |
| Lb_sex | 0.15 | 0.112 | (0.2532) | cm | length at birth, sex generation | PaffGibs1999 |
| Lp_asex | 0.5 | 0.4594 | (0.08122) | cm | length at puberty, asex generation | PaffGibs1999 |
| Lp_sex | 0.6 | 0.5998 | (0.0004061) | cm | length at puberty, sex generation | PaffGibs1999 |
| Li_asex | 1 | 1.234 | (0.2342) | cm | ultimate length of phorozooid | PaffGibs1999 |
| Ri_asex | 11 | 12.17 | (0.1065) | #/d | maximum reprod rate, asex generation | PaffGibs1999 |
| Ri_sex | 28 | 25.26 | (0.09772) | #/d | maximum reprod rate, sex generation | PaffGibs1999 |
Uni- and bivariate data
| Data | Figure | Independent variable | Dependent variable | (RE) | Reference |
|---|---|---|---|---|---|
| LW |  | gonozooid length | carbon weight | (0.2002) | GibsPaff2000 |
| TF |  | temperature | filtering rate | (0.2687) | GibsPaff2000 |
| TJX |  | temperature | ingestion rate | (0.2361) | GibsPaff2000 |
| Tr |  | temperature | growth rate | (0.3546) | GibsPaff2000 |
| XF |  | phytoplankton conc. | filtering rate | (0.8635) | GibsPaff2000 |
| XJX |  | phytoplankton conc. | ingestion rate | (0.4616) | GibsPaff2000 |
| Xr |  | phytoplankton conc. | growth rate | (0.2341) | GibsPaff2000 |
Pseudo-data at Tref = 20°C
| Data | Generalised animal | Dolioletta gegenbauri | Unit | Description |
|---|---|---|---|---|
| v | 0.02 | 0.03134 | cm/d | energy conductance |
| kap | 0.8 | 0.8194 | - | allocation fraction to soma |
| kap_R | 0.95 | 0.475 | - | reproduction efficiency |
| p_M | 18 | 2533 | J/d.cm^3 | vol-spec som maint |
| k_J | 0.002 | 0.002 | 1/d | maturity maint rate coefficient |
| kap_G | 0.8 | 0.8005 | - | growth efficiency |
Discussion
- kap_R is set to 0.95/2 becasue of hermaphroditism
- Parameter esitomates tuned by hand
Facts
- The gonozooid is hermaphrodite and the eggs are fertilised by sperm from another individual. These develop into oozooids, known as "nurses" without reproductive organs, as they develop a tail of zooids produced asexually. Some of these are known as gastrozooids, have a nutritional function and are arranged in lateral rows. Others are phorozooids, have a transport function and are arranged in a single central row. Other zooids link to the phorozooids which then detach themselves from the nurse. The zooids develop into gonozooids and when these are mature they separate from the phorozooids to live independently and start the cycle over again. Meanwhile, the phorozooids have served their purpose and die. (Ref: Wiki)
- max chain-length in the field: 15 cm (Ref: PaffGibs1999)
Bibliography