Fish
Suwannee Bass
Micropterus notius · also called Suwannee basses
A breeding male Suwannee bass flashes a vivid turquoise sheen as it holds position in the clear, spring-fed current of one of only two river systems on Earth where this species occurs naturally, a fish anglers sometimes travel specifically to northern Florida just to catch.
Overview
The Suwannee bass, Micropterus notius, is a fish native to clear, spring-fed rivers within the Suwannee and Ochlockonee drainages of northern Florida and southern Georgia. Its extremely narrow natural range, striking turquoise breeding colouration in males, and status as a specialist-angler target make it one of the most geographically restricted black bass species in North America.
A black bass confined to two rivers
While most black bass species range across large portions of the continent, the Suwannee bass exists naturally in just two connected river systems, an unusually narrow distribution for a group of fish otherwise known for their broad adaptability.
Status
Least Concern — present and stable within its naturally restricted range across the Suwannee and Ochlockonee River drainages of northern Florida and southern Georgia.
Suwannee Bass: common questions
Why is the Suwannee bass found in only two rivers?
This species is naturally restricted to the Suwannee and Ochlockonee River drainages of northern Florida and southern Georgia, a distribution likely shaped by its specific preference for the clear, consistently flowing water typical of spring-fed rivers, conditions that are not widely available across other nearby river systems in the region.
Why do breeding male Suwannee bass turn turquoise?
A breeding male can develop a striking turquoise or blue-green colouration, particularly around the head and lower body, a seasonal display driven by hormonal changes tied to reproduction, making it one of the more visually distinctive colour transformations among the various recognised black bass species.
Why do anglers specifically seek out the Suwannee bass?
Because this species is naturally restricted to just two river systems, catching one requires a specific trip to northern Florida or southern Georgia, which has made the Suwannee bass a sought-after target among anglers pursuing a personal goal of catching every recognised black bass species, a challenge this species' narrow range makes notably more difficult.
How does the Suwannee bass compare in size to other black bass species?
This species is smaller on average than several other black bass species such as the largemouth and smallmouth bass, rarely reaching comparably large sizes, a difference anglers specifically targeting the species should keep in mind when comparing catches against more widespread black bass relatives.