River Food Web Biotic Parts of Rivers Biotic is the living parts of an ecosystem. Sunlight Let's look at the biotic parts of rivers. Rivers connect land to bays and oceans. Rivers transport nutrients and energy from ecosystems inland all the way to the ocean. Aquatic plants and animals in a river system are connected to each other by the food chain and a complex food web. Bullfrog Phytoplankton Eelgrass 1 Smallmouth Bass Zooplankton Mayfly larva 48 Pennsylvania Angler & Boater * September/October 2021 www.fishandboat.comhttp://www.fishandboat.com