TROPHIC LEVEL 4 3 Alosa pseudoharengus Alosa gestivalis 2 FRESHWATER RIVER 1 Pelagic Copepod Phytoplankton Enneacanthus obesus ^^ Caddisfly Ironoquia parvula Anguilla rostrata PELAGIC PATHWAY Etheostoma fusiforme Mayfly Eurylophella spp Leptophilia spp. Benthic Diatoms Perca flavescens Ameiurus nebulosus Amphipbd Gammarus spp. Catostomus commersonii Oligochaetes Detritus and Sediments BENTHIC PATHWAY

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Microbes

Microbes are microscopic living organisms that can only be detected with the help of specialized laboratory equipment called a microscope. These living organisms are so small that they are not visible to the naked eye.