Fig. 2
Relative proportion contribution of autotrophic sources to the nutrition of fish in the Pangani Estuary. The box plots represent 25% (white), 75% (grey) and 95% (black) credibility intervals of autotrophic sources to the fish nutrition, CC, Carangoides chrysophrys and EM, Epinephelus malabaricus caught in a upper, b middle and c lower estuarine zones. Autotrophic sources included sPOM surface particulate organic matter (sPOM), Fgpr combined filamentous green algae and periphyton, Sgsw combined macro-algae (Sargassum species) and sea grass, C4pl C4 plants, C3pl C3 plants including mangroves, and Mpb microphytobenthos