Predictions & Data for this entry
| Model: abj | climate: MA | migrate: | phylum: |
| COMPLETE = 2.3 | ecozone: MAW | food: bjP, biD, jiCi, jiS, jiTie | class: |
| MRE = 0.071 | habitat: 0bMr, bjMp, jiMr | gender: D | order: |
| SMSE = 0.009 | embryo: Mbf | reprod: O | family: |
Zero-variate data
| Data | Observed | Predicted | (RE) | Unit | Description | Reference |
|---|---|---|---|---|---|---|
| ab | 19.5 | 19.5 | (8.024e-07) | d | age at birth | PohlTelf1983 |
| tj | 15.3 | 14.24 | (0.06908) | d | time since birth at metam | PohlTelf1983 |
| tp | 250 | 254.2 | (0.01677) | d | time since birth at puberty | PohlTelf1983 |
| am | 2190 | 2190 | (8.241e-06) | d | life span | guess |
| Lj | 0.0745 | 0.1049 | (0.4081) | cm | carapace width at metam | PohlTelf1983 |
| Lp | 0.58 | 0.5652 | (0.0256) | cm | carapace width at puberty | PohlTelf1982 |
| Li | 1 | 1.003 | (0.002708) | cm | ultimate carapace width for females | PohlTelf1982 |
| Wwb | 9.4e-05 | 8.455e-05 | (0.1005) | g | wet weight at birth | PohlTelf1983 |
| Wwi | 0.2 | 0.2222 | (0.1111) | g | ultimate wet weight | PohlTelf1982 |
| Ri | 4 | 3.959 | (0.01023) | #/d | maximum reprod rate | guess |
Uni- and bivariate data
| Data | Figure | Independent variable | Dependent variable | (RE) | Reference |
|---|---|---|---|---|---|
| tL_f |   | time since birth | carapace width | (0.08716) | PohlTelf1982 |
| tL_m | | time since birth | carapace width | (0.0502) | PohlTelf1982 |
Pseudo-data at Tref = 20°C
| Data | Generalised animal | Dissodactylus primitivus | Unit | Description |
|---|---|---|---|---|
| v | 0.02 | 0.02006 | cm/d | energy conductance |
| p_M | 18 | 21.12 | J/d.cm^3 | vol-spec som maint |
| k_J | 0.002 | 0.002 | 1/d | maturity maint rate coefficient |
| k | 0.3 | 0.4167 | - | maintenance ratio |
| kap | 0.8 | 0.8 | - | allocation fraction to soma |
| kap_G | 0.8 | 0.8083 | - | growth efficiency |
| kap_R | 0.95 | 0.95 | - | reproduction efficiency |
Discussion
- Males are assumed to differ from females by {p_Am} only
- Egg production rate is unkown and guess is based on kap = 0.8
Facts
- Lives in symbiosis with sea urchin Meoma ventricosa; The crab lives on the urchin, usually inside or near its mouth (Ref: BruyRiga2009)
- Weight-length: family member Austinixa aidae of Carapace Width 1 cm has wet weight 0.2 g (Ref: PierPezz2011)
- Larval development consists of a prezoeal stage of 5 min, followed by three zoeal stages of 1, 2.1, and 2.7 days, respectively. The megalopa can be reached by day 6 (mean 6.8), the first crab instar by day 12 (mean 15.3). (Ref: PohlTelf1983)
Bibliography