What Blueback Herring Are and Where They Live

Blueback herring are a small, silvery fish found mainly along the Atlantic coast and in rivers that flow into it. They are anadromous, meaning they spend most of their lives in salt water but swim upstream into freshwater rivers to spawn in spring. You will find them in coastal rivers from Nova Scotia south to Florida, with the largest populations in the Northeast and Mid-Atlantic regions.

The fish themselves are slender and rarely exceed 12 inches long. Their backs are dark blue or blue-green, which is where they get their name. They travel in schools, sometimes in enormous numbers during their spawning runs. In freshwater, they typically stay in deeper pools and channels rather than shallow riffles, and they move upstream primarily at night.

Blueback herring are not a primary target for most recreational anglers, but they are important forage fish for larger species like striped bass, largemouth bass, and catfish. Some regions have commercial fisheries for them, and they are also used as live bait for saltwater fishing.

Key Takeaways

  • Blueback herring run upstream in spring (March through May in most regions) to spawn in freshwater rivers and streams.
  • They are most abundant in Atlantic coastal rivers from the Northeast through the Mid-Atlantic, with smaller populations in the Southeast.
  • Fishing for them requires small hooks, light tackle, and patience, since they are not aggressive feeders and often ignore artificial lures.
  • Regulations vary significantly by state and river system, so check your local fishing guide before targeting them or using them as bait.
  • The best fishing occurs during the spawning run in spring, when large schools move through accessible sections of rivers.

When and Where to Fish for Blueback Herring

The spawning run is the only reliable time to target blueback herring in freshwater. This typically occurs from late March through May, depending on water temperature and latitude. In southern rivers, the run may begin in February; in northern rivers, it can extend into June. Water temperature is the trigger—the run usually begins when the river reaches 50 to 55 degrees Fahrenheit and intensifies as it warms toward 60 degrees.

Look for them in deeper pools below dams, in the slower water along the outside bends of rivers, and in areas where the current slows after a rapid or falls. They concentrate in these holding areas before moving upstream at night. Tidal rivers are particularly productive because herring can move in and out with the tide, creating predictable patterns. Dawn and dusk are the most active feeding periods, though they will bite throughout the day during peak spawning runs.

Access varies by river. Many states maintain public boat launches at key points along spawning rivers, and some rivers have dedicated herring runs with walkways or viewing platforms. Check your state's fisheries website for specific access points and whether a permit or fee is required.

Tackle and Bait for Blueback Herring

Blueback herring are small and not aggressive, so light tackle is essential. A 5- to 6-foot spinning rod rated for 4- to 8-pound line is ideal. Use 4- to 6-pound monofilament or braided line, and tie on small hooks—size 8 to 12—or tiny jigs weighing 1/32 to 1/8 ounce. They will occasionally strike small spinners or spoons, but live bait or cut bait is far more reliable.

The best baits are small shiners, silversides, or pieces of herring or mackerel. If you are fishing a river where herring are running, small pieces of herring itself work well. Cast upstream and let the bait drift naturally with the current, or fish vertically in deeper pools by dropping the bait to the bottom and working it slowly upward. Keep your line relatively tight so you can feel the take—blueback herring bite softly and will drop the bait quickly if they feel resistance.

Some anglers use small nets or dip nets to catch herring directly during peak runs, particularly in areas where they concentrate in shallow water. This method is legal in many states during the spawning season but requires checking local regulations first.

Regulations and Seasonal Closures

Blueback herring regulations differ significantly by state and river system. Some states have no recreational harvest limit; others prohibit keeping them entirely. A few states allow commercial netting during the spawning run but restrict recreational fishing. Massachusetts, Connecticut, and New York have detailed regulations specific to individual river systems, and some rivers are completely closed to herring fishing to protect spawning populations.

Before you fish, download your state's current fishing guide or visit the state fisheries website. Look for the section on herring or shad (blueback herring are sometimes grouped with American shad in regulations). If you plan to use herring as bait for other species, check whether there are restrictions on possession or sale. Some states allow you to keep herring for personal use as bait but prohibit selling them.

Seasonal closures are common. Most states close herring fishing after the spawning run ends, typically in June. Some rivers have earlier closures to protect populations. A few states require a special permit or stamp to fish for herring, though this is less common than for other species.

Regional Differences and Best Rivers

The Northeast has the most robust blueback herring populations and the longest history of recreational and commercial fishing for them. The Connecticut River, Delaware River, and Hudson River all have significant runs and are accessible to anglers. The Merrimack River in Massachusetts and New Hampshire supports a strong population. These rivers typically have public access points and established fishing seasons.

Mid-Atlantic rivers like the Potomac and Rappahannock in Virginia also have good runs, though populations have declined in recent decades. The Chesapeake Bay tributaries historically supported large herring fisheries, and some still do, though regulations are stricter than in the Northeast. The Cape Fear River in North Carolina and rivers in South Carolina have smaller but consistent runs.

Southern rivers generally have weaker populations and less developed recreational fisheries for herring. If you are fishing in the Southeast, check with local guides or state fisheries offices to learn whether a herring run occurs in your target river and what the current regulations are.

Using Blueback Herring as Bait

Many anglers target blueback herring not to keep them but to use as live or dead bait for striped bass, largemouth bass, catfish, and pike. A live blueback herring is an excellent bait for large striped bass in tidal rivers, particularly in spring and fall. Dead herring work well for catfish and can be fished on the bottom or drifted in the current.

If you plan to use herring as bait, check whether your state allows it. Some states restrict the use of herring as bait in certain waters or require that the herring come from a licensed bait dealer rather than from your own catch. A few states prohibit using herring as bait entirely to protect wild populations. These rules exist because herring are forage fish, and removing large numbers can affect the food chain for predatory species.

To keep herring alive as bait, use a livewell with circulating water or an aerator. Keep the water cool and change it frequently if you are fishing in warm weather. Dead herring should be kept on ice and used within a day or two of catching them.

Challenges and Conservation Concerns

Blueback herring populations have declined significantly over the past 50 years, particularly in the Mid-Atlantic and Southeast. Dams block access to spawning habitat, pollution degrades water quality, and overfishing—both commercial and recreational—has reduced numbers. Some rivers that once supported large runs now have few or no herring.

Many states have responded by restricting or closing commercial herring fisheries and by installing fish passages around dams to allow herring to reach spawning grounds. Some rivers have seen population recoveries as a result. However, progress is slow, and herring remain a conservation concern in many regions.

As an angler, you can help by following regulations, avoiding overharvest, and supporting dam removal and habitat restoration projects. If you catch herring, handle them gently and return any you do not intend to keep. Report any unusual observations—such as large die-offs or the absence of a run that normally occurs—to your state fisheries office.

Frequently Asked Questions

Can I keep blueback herring I catch, or do I have to release them?

It depends on your state and the specific river. Some states allow you to keep herring for personal consumption or as bait; others prohibit it entirely. Check your state's fishing guide or call the fisheries office before you fish. If the regulation is unclear, assume you must release them.

What is the difference between blueback herring and American shad?

Blueback herring are smaller (usually under 12 inches) and have a darker back than American shad. Shad are larger, more silvery overall, and have a spot behind the gill cover. Both are anadromous and spawn in spring, but shad are more prized by anglers and have separate regulations in most states.

Do I need a special license or permit to fish for blueback herring?

In most states, a standard freshwater fishing license covers herring. A few states require an additional stamp or permit, particularly if you plan to fish in a specific river system. Check your state's requirements before you go.

What time of day is best for catching blueback herring?

Dawn and dusk are most productive, but herring will bite throughout the day during the peak spawning run. Night fishing can be effective if local regulations allow it, since herring move upstream primarily at night. Water temperature matters more than time of day—fishing is best when the water is between 50 and 65 degrees Fahrenheit.

Where can I learn about a herring run is happening in my area?

Contact your state fisheries office or check their website for current run reports. Many states post updates during spring on which rivers have active runs and where access is available. Local fishing shops near spawning rivers often have current information as well.