Spatial environmental heterogeneity in the Yangtze River Estuary (YRE) is always mentioned but rarely quantified and included evaluation process. This study introduced habitat suitability index model based on Gini (HSIgini) to evaluate optimal ranges of suitable factors for three typical estuarine gobies, i.e., Rhinogobius giurinus, Acentrogobius pflaumii, Odontamblyopus rubicundus, their quali...