Predictions & Data for this entry
| Model: abj | climate: ME | migrate: | phylum: |
| COMPLETE = 1.5 | ecozone: MN | food: biPp, biAb | class: |
| MRE = 0.066 | habitat: 0jMp, jiMb | gender: D | order: |
| SMSE = 0.027 | embryo: Mp | reprod: O | family: |
Zero-variate data
| Data | Observed | Predicted | (RE) | Unit | Description | Reference |
|---|---|---|---|---|---|---|
| am | 2190 | 2186 | (0.001652) | d | life span | Dufo2017 |
| Lb | 0.0138 | 0.01377 | (0.002015) | cm | total length at birth | GiolDufo2015 |
| Lp | 0.28 | 0.2797 | (0.001091) | cm | total length at puberty | Dufo2017 |
| Li | 0.514 | 0.4885 | (0.04966) | cm | ultimate total length | Dufo2017 |
| Wdi | 0.002783 | 0.002911 | (0.04606) | g | ultimate ash-free dry weight | Mari2017 |
| Ri | 6.137 | 6.107 | (0.004815) | #/d | maximum reprod rate | guess |
Uni- and bivariate data
| Data | Figure | Independent variable | Dependent variable | (RE) | Reference |
|---|---|---|---|---|---|
| LWd |  | total length | ash-free dry weight | (0.3376) | Mari2017 |
| tL |  | time since birth | average length | (0.08697) | Dufo2017 |
Pseudo-data at Tref = 20°C
| Data | Generalised animal | Parathyasira sp | Unit | Description |
|---|---|---|---|---|
| v | 0.02 | 0.02027 | cm/d | energy conductance |
| p_M | 18 | 23.61 | J/d.cm^3 | vol-spec som maint |
| k_J | 0.002 | 0.002 | 1/d | maturity maint rate coefficient |
| k | 0.3 | 0.1989 | - | maintenance ratio |
| kap | 0.8 | 0.9575 | - | allocation fraction to soma |
| kap_G | 0.8 | 0.8019 | - | growth efficiency |
| kap_R | 0.95 | 0.95 | - | reproduction efficiency |
Discussion
- A minimal amount of information on Thyasira gouldi is used in this entry when there is no corresponding data for Parathyasira sp.
- Growth measurements were updated in January 2018.
- T_typical is taken to be equal to the temperature of the sediment, which is seasonal (range 0.7-14C, LaurBats2015).
Facts
- Thyasirids may have sulfur-oxidizing bacterial symbionts. Symbiotic thyasirids are mixotrophs, deriving nutritional input from particulate feeding and from their symbionts. (Ref: DandSpir1993)
- Parathyasira sp. is sympatric with Thyasira cf. gouldi (including symbiotic OTUs). These thyasirids are found in close proximity and with a patchy distribution. (Ref: BatsLaur2014)
- Parathyasira sp. may be constrained to lower latitudes when compared to Thyasira gouldi, which is described as being panarctic. The distribution of Parathyasira sp. and Thyasira cf. gouldi (outside of Bonne Bay, Newfoundland) remains uncertain. (Ref: Dufo2017)
Bibliography