Predictions & Data for this entry

Model: abj climate: MC migrate: phylum:
COMPLETE = 1.5 ecozone: MANW food: biPp, biAb class:
MRE = 0.055 habitat: 0jMp, jiMb gender: D order:
SMSE = 0.006 embryo: Mp reprod: O family:

Zero-variate data

Data Observed Predicted (RE) Unit Description Reference
am 1095 1095 (1.231e-05) d life span LopeGonz1987
Lb 0.0185 0.01931 (0.04365) cm total length at birth guess
Lj 0.12 0.111 (0.07518) cm shell height at settlment LopeGonz1987
Lp 0.54 0.5394 (0.001172) cm total length at puberty guess
Li 0.99 1.021 (0.03134) cm ultimate total length LopeGonz1987
Ri 79 79.08 (0.0009811) #/d maximum reprod rate guess

Uni- and bivariate data

Data Figure Independent variable Dependent variable (RE) Reference
LWd shell height ash-free dry weight (0.07853) LopeGonz1987
tL time since birth shell height (0.07445) LopeGonz1987

Pseudo-data at Tref = 20°C

Data Generalised animal Thyasira flexuosa Unit Description
v 0.02 0.02051 cm/d energy conductance
p_M 18 32.13 J/d.cm^3 vol-spec som maint
k_J 0.002 0.002 1/d maturity maint rate coefficient
k 0.3 0.1462 - maintenance ratio
kap 0.8 0.88 - allocation fraction to soma
kap_G 0.8 0.8018 - growth efficiency
kap_R 0.95 0.95 - reproduction efficiency

Discussion

  • Males are assumed not to differ from females
  • Although LopeGonz1987 mentions settlement, marlin gives that larval development is non-pelagic, suggesting that larvae are brooded inside the shell

Facts

  • Thyasirids may have sulfur-oxidizing bacterial symbionts. Symbiotic thyasirids are mixotrophs, deriving nutritional input from particulate feeding and from their symbionts. (Ref: DandSpir1993)
  • Thyasira_flexuosa livse 10 cm below the sediment surface, escaping most predation (Ref: LopeGonz1987)

Bibliography

Citation