BIODIVERSITY
A Thriving Ecosystem
Imagine this: As you stand along a pathway overlooking the banks of the river, a great blue heron soars overhead. It swoops down and gracefully lands feet-first in a grassy patch along the opposite bank of the river. There, it stands perfectly still. It waits patiently until … whoosh! The heron plunges its sharp bill into the shallow water. Its head quickly reemerges with a small silvery fish between its beak. You’ve just watched the bird catch its next meal.
The Ohio River holds much more than water. It is a place full of life, including fish, plants, birds, mammals, and more. It holds biodiversity, or a variety of living things. Just like the great heron that eats the fish, many of the living things in the river rely on one another for food, water, or shelter. Together they form an ecosystem that must stay in balance to survive.
Amazing Animals
From tiny minnows to massive blue catfish, more than 150 species of fish can be found in the Ohio River. Also swimming in the water are aquatic animals like the eastern hellbender, the largest salamander in the United States. Common visitors include birds like the great blue heron and mammals like the North American river otter.
Hidden Helpers
Settling on the bottom of the river, freshwater mussels aren’t easy to spot—but they do a very important job. Mussels act like natural water filters, taking in water from the river and filtering out bacteria, harmful chemicals, and heavy metals.
Hiding in plain sight, plants are also performing important jobs for the river. Growing along the riverbanks, wetland plants offer shelter for animals and oxygen for the water. They also prevent erosion along the riverbank, keeping waterfront cities safe.
Species Snapshots: Wildlife of the Ohio River
Pocketbook mussel
(credit: USFWS)
REFERENCES:
- Ohio Division of Wildlife - Freshwater Mussels of Ohio
- U.S. Fish & Wildlife Service - Mussels: The Muscles of a Healthy Waterway
- Ohio River Foundation - Ecology
CREDITS:
Patrick / Adobe Stock Photo (great blue heron header image)
WHAT'S YOUR RIVER ROLE?
Are you a Splash Maker, Water Warrior, Fish Finder, or River Explorer?
Copyright © 2026 Rose Davidson - All Rights Reserved.