Traits in Ridgeia piscesae that influence individual fitness.

The main environmental driver is the level of dissolved sulphide flux to sustain the bacterial symbionts. Habitat stability, which is low in high flux habitat, is likely an additional factor. This study did not assess factors that influence recruitment success (a fitness component). Most attributes are assessed in this study but additional literature information includes growth rates [38], [39], hemoglobin levels [27] and sulphide uptake [38].Traits in Ridgeia piscesae that influence individual fitness.