Bio-assessment Bacillariophyta 1 Bioassessment 1 Bioindication 1 Biological Diatom Index 1 Biological diatom index 1 Community assembly 1 Cost reduction 1 Diatoms 1 Dispersal 1 Dissolved oxygen 1 Ecological integrity 1 Ecology 1 Ecosystems 1 Efficiency 1 Environmental change 1 Estuaries 1 France 1 Functional characteristics 1 Functional traits 1 Good environmental status 1 Marine strategy framework directives 1 Mass effect 1 Mass effects 1 Nematoda 1 Nematode assemblages 1 Niche process 1 Particle size 1 Particle size analysis 1 Sado estuary 1