Salmon Fishing: Pacific and Atlantic Species in the US

Salmon fishing in the United States spans two ocean coastlines, dozens of river systems, and a regulatory landscape that can shift by the mile. This page covers the biological and behavioral differences between Pacific and Atlantic salmon species found in US waters, how and where to fish for them effectively, and the key rules that separate a legal catch from a costly mistake.

Definition and scope

Salmon in the US belong to the family Salmonidae, but the six species that matter to anglers split cleanly into two groups with very different biology, range, and legal status. Five species are native to the Pacific — Chinook (Oncorhynchus tshawytscha), Coho (O. kisutch), Sockeye (O. nerka), Pink (O. gorbuscha), and Chum (O. keta) — and one, the Atlantic salmon (Salmo salar), is native to the Northeast but exists there now largely through hatchery programs, as wild Atlantic salmon populations in US rivers are verified as endangered under the Endangered Species Act (NOAA Fisheries, Atlantic Salmon Species Profile).

The geographic scope of salmon fishing in the lower 48 states runs roughly from the Penobscot River system in Maine on the Atlantic side, to the vast river networks of the Pacific Northwest — Columbia, Fraser tributaries, Sacramento, and the coastal rivers of Washington, Oregon, and Northern California. Alaska adds an entirely different scale: the state accounts for the majority of the nation's commercial salmon harvest and hosts world-class sport fishing in rivers like the Kenai, which holds the all-tackle fly rod record for Chinook salmon.

For a broader look at the species landscape across US freshwater systems, the Fish Identification Guide breaks down distinguishing characteristics across game fish families.

How it works

Salmon are anadromous — born in freshwater, they migrate to the ocean to grow, then return to spawn and die. That life cycle is the engine of salmon fishing. The timing of the return run determines everything: where fish will be, what they'll strike, and whether a given stretch of river is even open.

Chinook — also called king salmon — are the largest of the Pacific species, commonly reaching 30 pounds and occasionally exceeding 100 pounds in Alaskan waters. They return to rivers from spring through fall depending on the run. Coho, which average 8 to 12 pounds, are aggressive strikers and the most targeted sport species in the Pacific Northwest. Sockeye are notoriously difficult to catch on conventional gear because they feed almost exclusively on zooplankton in saltwater and rarely strike lures on their freshwater return — most sockeye are taken by flossing, a method that is legal in some states and prohibited in others.

On the Atlantic side, landlocked salmon — populations of Salmo salar that complete their entire life cycle in freshwater lakes — are actively fished in Maine, New Hampshire, and New York. These fish typically run 14 to 20 inches and are a staple of the freshwater fishing tradition in New England.

Tackle selection follows species behavior. Chinook in tidal water respond well to trolled herring or large spinners. Coho in rivers hit spoons, jigs, and egg clusters. Pink salmon — which run in odd-numbered years in Washington and Oregon — will strike nearly anything pink-colored, earning them the nickname "humpies" and a reputation as the most willing participants in the salmon family.

The trolling techniques and jigging techniques pages cover the hardware details. The fishing guides and charters resource lists licensed operators who specialize in salmon runs by region.

Common scenarios

The three settings where most salmon fishing happens:

1. Tidal river mouths and bays — Salmon stack near saltwater-freshwater transitions before committing to the upstream run. This is prime water for Coho and Chinook from boats using downriggers or drift rigs.
2. Mainstem rivers during active runs — High-visibility water with concentrated fish. Regulations here are often the most restrictive, with slot limits, barbless hook requirements, and mandatory catch reporting in states like Washington (Washington Department of Fish and Wildlife, Fishing Regulations).
3. Lakes targeting landlocked salmon — New England and the Great Lakes region both support landlocked Atlantic and Chinook populations stocked by state programs. The fish stocking programs page explains how hatchery operations maintain these fisheries.

Alaska presents a fourth scenario on its own terms — remote fly-out fishing for Sockeye and Chinook in roadless drainages, guided float trips on the Kenai Peninsula, and combat fishing at Klutina River shoulder-to-shoulder with other anglers during peak Sockeye runs in July.

Decision boundaries

The single most important decision before salmon fishing is confirming the current regulatory status of the target species, water body, and method. Pacific salmon fisheries are co-managed between the Pacific Fishery Management Council, NOAA Fisheries, and individual state agencies under the Pacific Salmon Treaty with Canada (Pacific Fishery Management Council). Atlantic salmon in Maine rivers are subject to separate federal ESA protections, and targeting wild Atlantic salmon is prohibited in nearly all circumstances.

Key distinctions that shape legal exposure:

• Hatchery vs. wild fish — On many Pacific Northwest rivers, hatchery Chinook and Coho (marked by a clipped adipose fin) may be kept, while wild fish must be released. Misidentifying a wild fish as hatchery origin is one of the most common citation scenarios on Oregon and Washington rivers.
• Species quotas and emergency closures — NOAA Fisheries can issue in-season closures when run forecasts fall below threshold. These can activate within days.
• Tribal water access — On treaty rivers in Washington, Oregon, and Idaho, tribal nations hold co-management rights and exclusive access to specific sites. Tribal fishing rights covers the legal framework in detail.

Licensing requirements vary by state and water type. Anglers fishing for salmon in saltwater fishing contexts off the Pacific coast may need both a state fishing license and a separate salmon punchcard or harvest report card — Oregon and Washington both require these. The fishing licenses by state page lists current requirements.

The full picture of salmon fishing connects back to broader conservation dynamics covered on the National Fishing Authority home page, where habitat protection, run health, and access rights converge in ways that affect every season.