Tennessee Aquatic Invasive Species Rules for Anglers

Tennessee Aquatic Invasive Species • 2026–27 Guide

Don’t carry the next invasive species to your next fishing spot

Tennessee anglers must pay attention to more than fishing licenses and bag limits. Moving live fish, crayfish or salamanders into another water, transporting certain prohibited species, and carrying restricted baitfish can create serious legal and ecological problems.

Use this guide to separate what Tennessee law prohibits from the boat, bait-bucket and gear-cleaning practices TWRA recommends to protect the state’s fisheries.

12 prohibited live-specimen groups Class C bait: same water only Parksville: no live black bass transport Clean • Drain • Dry
Quick answer

What Tennessee anglers are prohibited from doing

Under current Tennessee Wildlife Resources Agency fishing regulations, these are the restrictions most likely to affect a normal fishing trip.

Prohibited

Release live fish into a different water

Do not intentionally release or stock live fish, crayfish or salamanders into Tennessee waters away from the water where they were harvested.

Prohibited

Possess or transport listed live invasive species

Tennessee expressly bans possession or transport of live silver, bighead and black carp, zebra mussels, snakeheads and other listed animals.

Prohibited

Move Class C baitfish alive

Class C live baitfish must stay in the same water where harvested. They cannot be possessed away from that water, sold, imported or exported alive.

Special restriction

Transport live black bass from Parksville

TWRA’s Parksville Reservoir rule prohibits live transport of any black bass away from the reservoir, not just fish positively identified as Alabama bass.

Special restriction

Harvest or possess crayfish in protected streams

Some named streams, tributaries and banks prohibit crayfish harvest, use and possession. Other waters limit movement beyond their watershed.

Prevention guidance

Move a wet, contaminated boat or tackle

TWRA recommends removing organisms, draining water, cleaning equipment and drying it before moving to another water to prevent hidden hitchhikers.

Law versus best practice: Tennessee’s express live-animal movement and possession restrictions are legal prohibitions. Clean, Drain, Dry is prevention guidance that every angler should follow. Do not assume every cleaning recommendation represents the same statewide criminal requirement, and obey additional posted or site-specific rules when present.

Reviewed against current TWRA fishing and live-bait pages on October 15, 2026. The latest agency proclamation and site restrictions take precedence over an informational summary.

Interactive angler decision tool

Can I move this bait, fish or equipment to another Tennessee water?

Select what you are moving and your situation. The result identifies the relevant Tennessee restriction or prevention step.

Choose a situation and select “Check the rule” to see the main restriction.

This tool cannot identify a fish or certify that its collection and destination are legal. Check TWRA’s species classification and exact water restrictions.

The official live-specimen prohibition

Which aquatic invasive species cannot be possessed or transported alive in Tennessee?

TWRA’s statewide fishing regulations identify the following animals. The restriction concerns live specimens; it should not be confused with a blanket prohibition on possessing a lawfully harvested dead fish.

Invasive carp

Silver carp, bighead carp and black carp.

Other invasive fish

Blueback herring, round goby, rudd and ruffe.

Predatory fish groups

All snakeheads in the family Channidae and swamp eels in the family Synbranchidae.

Mollusks and crayfish

Zebra mussels, New Zealand mud snails and marbled crayfish.

Identification issue: juvenile silver carp can resemble shad. Do not move an unidentified baitfish alive simply because it came from a cast-net haul. Species identification and legal origin both matter.

See TWRA’s statewide prohibited live-specimen list. Find the “Banned in Tennessee” section and compare the species name before retaining or transporting any questionable animal.

Bait movement rules

Class A, B, C and D: Tennessee baitfish laws in plain English

The baitfish class is often more important than where a baitfish was purchased. A species may be lawful to catch and use but unlawful to move alive between fishing locations.

ClassExamplesWhat anglers may doCritical limit
Class A Gizzard shad, threadfin shad, fathead minnow, golden shiner, goldfish and specified other species. Lawful harvest, bait use, licensed dealer sales and import/export can be permitted. Skipjack, gizzard shad and threadfin shad harvested in specified Mississippi River, Kentucky, Barkley and Pickwick waters may not be transported away alive.
Class B Stoneroller, creek chub, bluntnose minnow and bullhead minnow. Licensed sport anglers may harvest and use them; specified interstate transport is allowed. They may not be sold under the Class B allowance; maximum possession is 100 of each listed species.
Class C Eligible baitfish not included in Class A or B and not otherwise protected. Live specimens can be used as bait only in the same water from which they were harvested. No live removal, live sale or live interstate transport. Daily harvest limit: 50 combined; possession: 100 combined.
Class D Specified silversides and invasive carp, including silver, bighead and black carp. Special allowance for licensed bait dealers to harvest and sell listed species as dead bait. Listed invasive carp cannot be kept alive after harvest. The dealer allowance does not authorize live possession.

The shad and skipjack rule that catches anglers off guard

Restricted movement

Mississippi River, Kentucky Reservoir, Barkley Reservoir and Pickwick Reservoir: live skipjack herring, gizzard shad and threadfin shad may not be transported away from the water, including the specified tributaries and oxbows.

Specific exception

TWRA states that this restriction does not apply to the Duck River above Normandy Dam. This does not remove other statewide baitfish classifications or local fishing rules.

Example: Catching gizzard shad in Kentucky Lake does not automatically let you keep them alive in a bait tank and tow them to a different reservoir. Classification, the listed source-water rule and the destination matter.

Use the official TWRA live bait regulations. Identify the species, find its class, read the starred exceptions, and only then check how the bait can be harvested, possessed or transported.

Live bait disposal

What to do with leftover live bait when your fishing trip ends

01

Do not dump the bucket

Do not release leftover live bait into an unrelated lake, river, creek or drainage. Even familiar minnows may contain unwanted species or pathogens.

02

Identify what you have

Check whether remaining fish are Class A, B, C or prohibited live species. A transport allowance for one class does not carry over to another.

03

Dispose safely

Follow TWRA’s applicable bait disposal rules. Unwanted bait and contaminated water should not be introduced into another water; use proper trash or dry-land disposal when appropriate.

A fish cannot be stocked into a public water merely because it is native to Tennessee or because the angler owns a valid fishing license.

Preventing hitchhikers

Clean, Drain, Dry: the Tennessee boat and fishing-gear routine

Microscopic zebra mussel larvae can travel in water retained by a motor, livewell or bilge. Aquatic plants can cling to a trailer or propeller, while mud and wet waders can carry organisms between rivers.

  1. Inspect before leaving the water. Look over the hull, propeller, motor intake, trailer bunks, rollers, axle, anchor, ropes, paddle, nets and gear for plants, animals and mud. Remove visible material.
  2. Drain retained water. Empty the bilge, livewell, baitwell, motor and containers according to safe operating instructions. Do not transfer lake or river water into another waterbody.
  3. Check hidden compartments. Look under wet flooring, inside a kayak cockpit, beneath removable seats and around bait containers or fishing tackle that remained submerged.
  4. Wash appropriate surfaces. TWRA’s zebra mussel guidance recommends hot-water cleaning above 140°F for suitable boat equipment. Use professional cleaning when appropriate, avoid scalds and follow equipment-manufacturer restrictions.
  5. Allow complete drying. TWRA recommends thoroughly drying boats and equipment for five days as a prevention measure. Damp, shaded or enclosed spaces deserve particular attention.
  6. Inspect again before the next launch. Confirm that plants, attached organisms and retained water are gone. Follow stricter posted rules or site-specific decontamination instructions where applicable.
Why hot-water or drying matters: zebra mussel adults can survive out of water when kept cool and moist, while their microscopic larvae may remain hidden in small pockets of water. A visibly clean hull alone does not prove the system is free of contamination.
Safety: water hotter than 140°F can cause burns. Never mix cleaning chemicals. Chemical disinfectants also have material, concentration, contact-time and disposal requirements; use the current TWRA guidance and the manufacturer’s instructions instead of guessing a stronger mixture.
Interactive departure checklist

Is your boat or fishing setup ready for a different water?

Check each item before heading to the next river, lake or reservoir. The progress bar tracks your preparation; it is not an official inspection certificate.

0 of 6 preparation checks completed.

Species that travel on equipment

Four aquatic threats Tennessee anglers should recognize

Zebra mussels

Small shells, large consequences

Adults attach to hard surfaces using tough byssal threads. Microscopic larvae travel in retained water. Tennessee’s major river systems, including the Tennessee, Cumberland and Mississippi drainages, are part of their established North American spread.

Check: hulls, anchors, ropes, motors, bilges, livewells and bait buckets.

Hydrilla and aquatic plants

Plant fragments can create new infestations

Hydrilla is an invasive aquatic plant that can spread through fragments and reproductive structures. Dense growth may crowd other vegetation and interfere with boating or fishing access.

Check: trailers, propellers, bunks, anchors and wet vegetation caught in nets.

Invasive carp

Juveniles may mix with baitfish

Silver carp are established in portions of the lower Tennessee and Cumberland river systems. Their young may be confused with shad, and larger silver carp can jump from the water when disturbed by boats.

Check: cast-net catches, baitfish identification and the live-specimen ban.

Whirling disease and Didymo

Threats that are difficult to see

TWRA identifies whirling disease and Didymo among aquatic threats. Wet fishing equipment may spread organisms or pathogens even without a visible plant or attached mussel.

Check: waders, boots, nets, felt or porous materials, and anything left wet between streams.

Tennessee locations and exceptions

Where aquatic invasive species rules become especially important

Water / areaSpecific concern or ruleWhat the angler should do
Parksville Reservoir
Polk County
Invasive Alabama bass and hydrilla are documented. TWRA prohibits live transport of any black bass away from the reservoir. Do not move a live largemouth, smallmouth, spotted, Alabama or hybrid black bass away from Parksville. Remove plant material before towing the boat.
Kentucky and Barkley reservoirs Invasive carp populations and restrictions on transporting certain shad/herring species alive. Identify cast-net fish carefully, check live-bait movement rules and keep prohibited invasive carp specimens out of livewells.
Pickwick Reservoir and Mississippi River Specified Class A shad and skipjack species cannot be transported away alive. Do not assume caught shad can be loaded into a livewell for a different lake.
Watts Bar, Fort Loudoun and Tellico reservoirs TWRA documents Alabama bass hybridization with smallmouth bass in these systems. Do not relocate live bass to improve another fishery. Report suspicious stocking to TWRA.
Mill Creek
Davidson / Williamson counties
Crayfish harvest, use and possession are prohibited in the named stream, tributaries and adjacent banks. Do not collect or use crayfish bait there.
South Chickamauga Creek
Hamilton County
Special crayfish harvest, use and possession prohibition. Leave crayfish in place; check the full creek and tributary boundaries.
Caney Fork River
Cumberland County portion
Specified crayfish prohibition applies to the named Cumberland County waters and associated tributaries/banks. Do not confuse this restricted area with the entire Caney Fork river system.
French Broad, Holston and Clinch systems Crayfish harvested from specified waters and tributaries cannot be possessed away from their watershed. Do not move harvested crayfish into another watershed; verify the exact collection water.
A county label is not a complete boundary. TWRA’s crayfish rules may apply to named tributaries, whole watersheds or adjacent banks. Other protected streams include the Conasauga River system, portions of the Hiwassee system, Shoal Creek, Flint River and other specifically listed locations.
Alabama bass movement

Why TWRA says “Do Not Move Bass”

Alabama bass resemble native spotted bass closely enough that ordinary visual identification may be unreliable. TWRA uses genetic testing to distinguish them when necessary.

Outside their native range, Alabama bass can compete with largemouth and smallmouth bass and hybridize with smallmouth populations. TWRA reports impacts at Parksville and genetic hybridization concerns in Watts Bar, Fort Loudoun and Tellico reservoirs.

Never stock

Moving a live bass is not fishery management

Do not transport live fish to stock a friend’s pond, improve a reservoir, fill a club’s preferred water or relocate tournament fish to another waterbody.

Identify carefully

Appearance can be misleading

Do not assume a bass that looks like a spotted bass is genetically native or safe to relocate.

Report suspicious activity

Protect the existing fishery

TWRA asks anglers to report suspected unlawful bass stocking or movement to the appropriate regional office.

Parksville detail: TWRA permits harvest of smallmouth, spotted and Alabama bass and their hybrids without a local creel or minimum length limit, while largemouth bass have separate restrictions. These harvest provisions do not override Parksville’s ban on live transport of any black bass away from the reservoir.

For the full Parksville rule and species status, see TWRA’s Parksville Reservoir fisheries page. Read the reservoir regulation section before retaining or transporting black bass.

Crayfish and salamanders

Crayfish bait: legal harvest does not mean unrestricted movement

Tennessee allows licensed sport anglers to harvest certain native crayfish and specified dusky salamanders for bait, but there are several important limitations.

No bait trade

Sale and import/export restricted

TWRA prohibits buying or selling amphibians and crayfish for bait and importing or exporting them for bait.

Protected streams

Some waters prohibit possession

In listed streams, their tributaries and adjacent banks, even possessing crayfish may be unlawful. Review exact place names rather than guessing from the county.

Watershed limitation

Some collections must stay local

Crayfish from designated French Broad, Holston, Clinch, Clear Fork and Big South Fork systems cannot be possessed away from the watershed in which they were harvested.

The complete lists also include waters in Hardin, McNairy, Lawrence, Wayne, Polk, Bradley, Henry and other counties. Review TWRA’s “Amphibians and Crayfish” section before using a seine or crayfish trap.

Different activity, different rule: TWRA allows wild crayfish to be taken for food under the applicable live-bait harvest rules, but wild-caught crayfish may not be sold. This is not permission to transfer live crayfish into another water.
Legal bait harvesting

What about cast nets, seines and bait traps?

Using a legal bait-harvest tool does not override a restricted water or prohibited-species rule. For ordinary lawful bait collection, TWRA defines the following gear dimensions.

GearGeneral TWRA definition / limitPractical reminder
Cast netMaximum 10-foot radius; mesh square measure not less than 1/4 inch and not greater than 1 inch.Identify all captured organisms; prohibited live species cannot be kept in a bait tank.
Minnow seineNo longer than 10 feet; maximum 3/8-inch square mesh; must be constantly attended.Do not set the seine as stationary unattended gear.
Minnow / crayfish trapMust be labeled legibly with the owner’s name and address or TWRA identification number.Check local stream prohibitions before setting a crayfish trap.
Shad trawlMaximum 1-inch mesh, 48-inch hoop diameter and 72-inch net length; only gizzard or threadfin shad.Not permitted within 1,000 yards below any dam.
Angling for gamefish as baitGamefish harvested as bait must be caught by legal sport-angling methods.License, creel, length and season rules apply to the harvest and use waters.
Moving among waters

One fishing trip, three common invasive-species scenarios

Bank fishing at a trout stream

Main pathway: wet waders, boots, nets and mud.

Clean and dry equipment before fishing a different drainage. Aquatic organisms and disease agents do not require a boat to spread.

Trailering from a reservoir

Main pathway: hull attachments, trailer vegetation, bilge and livewell water.

Remove visible material, drain retained water and complete appropriate cleaning/drying before the next launch.

Moving to another lake with bait

Main pathway: living organisms in bait buckets or tanks.

Identify the species, check TWRA Class A/B/C restrictions and never release leftover organisms into a different water.

Permits do not override fish-movement rules

Does a valid Tennessee fishing license make moving fish or bait legal?

No. A valid fishing license governs fishing privileges; it is not authorization to stock a public water, possess prohibited live invasive species or move Class C baitfish between waters.

If your trip involves resident, visitor or trout coverage, check the Tennessee fishing license requirements guide to confirm the correct general license. An appropriate license is only the first part of compliance.

County-only or no-trout license

These products have separate restrictions on where or how anglers can fish. The Tennessee no-trout license guide explains the county-only natural-bait restriction, including its exclusion of minnows.

All-species privileges

An all-species license may cover trout in addition to other sportfish, but it does not cancel invasive-species law or special stream restrictions. See the Tennessee all-species fishing license guide for coverage.

Some waters also need special fishing permits. Consult our Tennessee fishing permit guide when visiting managed lakes or designated permit areas.

Reporting and enforcement

How to report suspicious fish movement, illegal stocking or a possible new invasive species

  1. Record the exact location. Note the waterbody, county, boat ramp or nearest public landmark. GPS coordinates are useful when available.
  2. Describe what you saw. Note the animal, approximate number, condition and whether someone appeared to release or move live fish between waters.
  3. Take a photograph if safe. A clear image can help biologists assess an unusual animal. Do not transport a prohibited live specimen as proof.
  4. Contact the appropriate TWRA region. Explain whether the report concerns suspected illegal stocking, invasive species identification or another resource violation.
  5. Follow agency directions. TWRA can advise what additional details or specimen-handling procedures, if any, are appropriate.

TWRA regional contacts

Region 1 — West Tennessee

731-423-5725
200 Lowell Thomas Drive, Jackson, TN 38301

Region 2 — Middle Tennessee

615-781-6622
5107 Edmondson Pike, Nashville, TN 37204

Region 3 — Cumberland Plateau

931-484-9571
464 Industrial Boulevard, Crossville, TN 38555

Region 4 — East Tennessee

423-587-7037
3030 Wildlife Way, Morristown, TN 37814

Statewide agency contact: Tennessee Wildlife Resources Agency, 615-781-6500 or Ask.TWRA@tn.gov. For an immediate threat to life, call 911 instead of using a routine wildlife-reporting channel.
Official Tennessee sources

Check the exact rule before harvesting bait or moving between waters

These official sources serve different purposes: the statewide prohibition list controls listed live animals; the bait page controls classification and movement; the named reservoir page controls Parksville’s specific black-bass rule; and the zebra mussel page supplies prevention and decontamination guidance.
Frequently asked questions

Tennessee aquatic invasive species rules: common questions

Is it illegal to move live fish from one Tennessee lake to another?

It is unlawful to intentionally release or stock live fish, crayfish or salamanders into Tennessee waters away from the water where they were harvested. Additional possession and transport restrictions apply to listed invasive species, particular baitfish classes and specific waters.

Are live zebra mussels illegal to possess or transport in Tennessee?

Yes. Zebra mussels are included on TWRA’s prohibited live-specimen list. Boats and equipment should be inspected, drained, cleaned and dried to avoid accidentally spreading them.

Do I have to clean and drain my boat before fishing another Tennessee lake?

TWRA recommends inspecting, cleaning, draining and drying boats and gear between waters to prevent aquatic invasive species from spreading. This prevention guidance is separate from explicit legal prohibitions on moving or possessing certain live organisms. Obey any additional local requirements.

How long should a boat dry to prevent zebra mussel spread?

TWRA’s zebra mussel prevention guidance recommends thoroughly drying boats and equipment for five days. It also describes appropriate hot-water cleaning and other decontamination options. Follow current agency guidance and equipment safety instructions.

Can I carry live Class C baitfish to another Tennessee water?

No. Under TWRA’s Class C baitfish rules, live specimens must be used in the water from which they were harvested and may not be possessed away from that water, sold alive or imported or exported alive.

Can I transport live shad from Kentucky Lake or Pickwick?

TWRA restricts live transport away from specified Mississippi River, Kentucky, Barkley and Pickwick waters of skipjack herring, gizzard shad and threadfin shad, including the stated tributaries and oxbows. The agency identifies an exception for the Duck River above Normandy Dam.

Can invasive carp be kept alive and used as bait in Tennessee?

No. Tennessee prohibits possession or transport of live silver, bighead and black carp. TWRA permits certain invasive carp to be harvested and handled as dead bait under its applicable rules, but they cannot be kept alive after harvest.

Can I move crayfish collected in a Tennessee river to another watershed?

Not automatically. Some streams prohibit crayfish harvest, use and possession entirely. Crayfish harvested from specified French Broad, Holston, Clinch, Clear Fork and Big South Fork systems may not be possessed away from their watershed of origin.

Can I transport a live black bass away from Parksville Reservoir?

No. TWRA’s Parksville Reservoir regulations prohibit live transport of any black bass away from the reservoir, including largemouth, smallmouth, spotted, Alabama bass and their hybrids.

Where should I report suspected illegal stocking or Alabama bass movement?

Contact the TWRA regional office for the area where the incident occurred. Record the location, time, activity and species if known, and provide a photograph when safe. Do not move a prohibited live animal as evidence.

Protect the next water before leaving this one

The safest Tennessee fishing routine is straightforward: identify and keep bait legally, never relocate live fish or crayfish, remove attached organisms, drain retained water and clean and dry equipment before moving to another water.

This is an independent informational guide, not a Tennessee government website. TWRA’s current regulations, proclamations and site-specific restrictions are authoritative. A valid fishing license does not override aquatic invasive species prohibitions.

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