Predictions & Data for this entry

Model: abj climate: ME migrate: phylum:
COMPLETE = 1.5 ecozone: MN food: biPp class:
MRE = 0.066 habitat: 0jMp, jiMb gender: D order:
SMSE = 0.116 embryo: Mp reprod: O family:

Zero-variate data
am2190 2186 (0.001652)dlife spanDufo2017
Lb0.0138 0.01377 (0.002015)cmtotal length at birthGiolDufo2015
Lp0.28 0.2797 (0.000981)cmtotal length at pubertyDufo2017
Li0.514 0.4885 (0.04966)cmultimate total lengthDufo2017
Wdi0.002783 0.002911 (0.04606)gultimate ash-free dry weightMari2017
Ri6.137 6.107 (0.004815)#/dmaximum reprod rateguessed
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
LWd see Fig. 1 (0.3376)total lengthash-free dry weightMari2017
tL see Fig. 2 (0.08697)time since birthaverage lengthDufo2017
Pseudo-data at Tref
DataGeneralised animalParathyasira spUnitDescription
v 0.02 0.02027cm/denergy conductance
kap 0.8 0.9575-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 23.61J/^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.8019-growth efficiency


  • 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)


  • 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.