Assemblage pattern, guild compositions and seasonal dynamics of ornamental and food fishes in the Indian Sundarbans estuarine system: a model-based approach for sustainability

We report here the ecohydrological interactions and distribution pattern of fish species composition in the Indian Sundarbans estuarine system (SES). Seasonal sampling was conducted in two phases, with the first sampling occurring between July 2010 and June 2011 and the second sampling occurring between July 2015 and June 2017. In total, 204 fish species belonging to 143 genera, 63 families and 28 orders were recorded. Fish species diversity was lower in the second phase of the study (131 species) than in the first phase (165 species). The species richness predictions varied significantly ( p