HUMBOLDT FISHERS
HUMBOLDT COUNTY · NORTH COAST

Fish species guide

Explore fish species found in Humboldt County rivers and Humboldt Bay. Species presence and catch opportunities depend on location, habitat, and season.

Fishing reminder: This is a general river-species guide, not confirmation that a fish is currently present or legal to catch. Check current California fishing regulations, seasonal closures, and local advisories before fishing.

River Species

Fish associated with Humboldt County rivers and connected freshwater reaches.

Steelhead swimming underwater
Native anadromous fish

Steelhead

Rivers: Eel River, Mad River, Van Duzen River, Trinity River, and other suitable North Coast tributaries.

Notes: Steelhead are the ocean-going form of rainbow trout. This listing focuses on steelhead, not resident rainbow trout.

Chinook salmon
Salmon

Chinook Salmon

Rivers: Eel, Mad, Trinity, and Klamath river systems, depending on run and season.

Notes: Also called king salmon. Runs, open seasons, and permitted reaches vary.

Coho salmon
Salmon

Coho Salmon

Rivers: Suitable tributaries in the Eel and Mad watersheds and other North Coast coastal streams.

Notes: Coho are conservation-sensitive; check current rules and restrictions before fishing.

Pacific lamprey
Native migratory fish

Pacific Lamprey

Rivers: Eel, Mad, Trinity, Klamath, and other connected North Coast river systems.

Notes: An eel-shaped native fish that migrates between the ocean and freshwater. It is not a typical sport-fishing target.

White sturgeon
Large native fish

White Sturgeon

Rivers: Most associated locally with the lower Eel River and connected estuary waters; do not assume they occur throughout the river.

Notes: Sturgeon are long-lived and highly regulated. Check current CDFW rules carefully before targeting or keeping one.

Green sturgeon
Native anadromous fish

Green Sturgeon

Rivers: Uses large coastal river systems and estuaries, including the Eel River region; occurrence varies by watershed and season.

Notes: A protected, conservation-sensitive species. Do not target or keep it; check current CDFW regulations.

Sacramento pikeminnow
Native freshwater fish

Sacramento Pikeminnow

Rivers: Eel River watershed and suitable freshwater reaches; distribution can vary among tributaries.

Notes: A predatory minnow native to California river systems. It is not the same as northern pike, which is a different fish.

Bay Species

Fish found in Humboldt Bay and nearby bay entrance waters. Some species are more associated with the jetties or adjacent ocean than the inner bay.

Flounder
Flatfish

Flounder

Habitat: Sandy and muddy bay bottoms.

Notes: Several flatfish species occur in the region. Identify the species before keeping it.

Rockfish
Coastal fish

Rockfish

Habitat: Mainly rocky areas and nearby coastal waters.

Notes: Multiple rockfish species occur along the North Coast; regulations vary by species and area.

Lingcod
Nearshore predator

Lingcod

Habitat: Rocky habitat around the bay entrance and nearby ocean.

Notes: More associated with rocky coastal waters than the shallow inner bay.

Chinook salmon
Migratory salmon

Chinook Salmon

Habitat: Migrates through the bay on its way to connected rivers.

Notes: Open seasons and permitted areas change; check current regulations.

Bat ray
Ray

Bat Ray

Habitat: Sandy and muddy bay bottoms.

Notes: A large ray that may be encountered by anglers fishing the bottom.

Leopard shark
Shark

Leopard Shark

Habitat: Coastal bays and estuaries.

Notes: Check current rules and health advisories; do not assume it is safe to eat.

Surfperch
Shoreline fish

Surfperch

Habitat: Bay shorelines, piers, and nearby surf zones.

Notes: Several perch species may be present; identify your catch before keeping it.

California halibut
Flatfish

California Halibut

Habitat: Sandy areas and channels in coastal bays.

Notes: A popular target where present; check size, bag, and seasonal rules.

Coho salmon
Migratory salmon

Coho Salmon

Habitat: Migrates through coastal waters and into suitable rivers.

Notes: Coho are conservation-sensitive and fishing restrictions can be strict. Check current rules before targeting or keeping one.

Pacific sardine
Schooling fish

Sardines

Habitat: Coastal waters and sometimes estuaries.

Notes: Pacific sardines form large schools. Check current regulations before fishing.

Northern anchovy
Schooling fish

Anchovies

Habitat: Coastal waters and estuaries.

Notes: Northern anchovies are small schooling fish that feed on plankton.

Red rock crab
Crab

Red Rock Crab

Habitat: Rocky shorelines, pilings, and estuary structure.

Notes: Often has a red shell and black-tipped claws. Check current size and harvest rules.

Dungeness crab
Crab

Dungeness Crab

Habitat: Sandy and muddy bottoms in coastal bays and nearshore waters.

Notes: Check current season, size limits, gear rules, and closures before crabbing.

Green sturgeon
Native anadromous fish

Green Sturgeon

Habitat: Estuary channels and coastal waters during migration; may use connected river systems.

Notes: Protected and conservation-sensitive. Do not target or keep it; check current CDFW regulations.

Ocean Species

Nearshore and offshore species found along the Northern California coast. Availability varies with season, depth, ocean conditions, and local regulations.

Chinook salmon
Salmon

Salmon (Chinook)

Habitat: Coastal ocean waters and seasonal migration routes near river mouths.

Notes: Also known as king salmon. Check current ocean salmon seasons and area restrictions.

Pacific halibut
Flatfish

Pacific Halibut

Habitat: Sandy and mixed ocean bottoms, generally offshore.

Notes: A large North Pacific flatfish. Confirm local season, size, and bag limits.

California halibut
Flatfish

California Halibut

Habitat: Sandy bottoms in bays and nearshore coastal waters.

Notes: Distinct from Pacific halibut; check current California regulations.

Lingcod
Rocky reefs

Lingcod

Habitat: Rocky reefs, pinnacles, and kelp-associated structure.

Notes: A large nearshore predator; seasonal closures and size limits may apply.

Black rockfish
Rockfish

Black Rockfish

Habitat: Kelp beds, rocky reefs, and nearshore to offshore structure.

Notes: Often encountered around rocky coastlines. Rockfish rules can change by area and season.

Copper rockfish
Rockfish

Copper Rockfish

Habitat: Rocky reefs and underwater structure, often in relatively shallow water.

Notes: Recognizable by coppery and mottled coloring. Check current rockfish restrictions.

Vermilion rockfish
Rockfish

Vermilion Rockfish

Habitat: Rocky reefs and hard-bottom habitat, commonly deeper than many nearshore species.

Notes: Bright red-orange coloring is typical. Verify identification and current rules.

Albacore tuna
Pelagic fish

Albacore Tuna

Habitat: Open ocean, often well offshore in warmer-season North Coast fisheries.

Notes: A fast-swimming tuna targeted during seasonal offshore trips; conditions and availability vary.

Redtail surfperch
Surf zone

Redtail Surfperch

Habitat: Sandy beaches and surf zones along the open coast.

Notes: The image is a representative surfperch photo. Check identification before keeping a catch.

Kelp greenling
Nearshore fish

Kelp Greenling

Habitat: Kelp forests, rocky reefs, and tidepool-adjacent underwater habitat.

Notes: Color patterns differ between males and females. Check current local rules.

Leopard shark
Shark

Leopard Shark

Habitat: Shallow coastal waters, sandy flats, bays, and estuaries.

Notes: Distinctive dark saddle-like markings. Follow current regulations and health advisories.

Bat ray
Ray

Bat Ray

Habitat: Sandy and muddy bottoms in bays and nearshore coastal waters.

Notes: A broad-winged ray often seen cruising close to the bottom.

Lake & Lagoon Species

These cards list fish first, then identify the Humboldt County lakes and lagoons where they are reported or associated. Fish presence varies by season, water conditions, stocking, and the specific part of each waterbody. Species lists for Sweasey Lake and Mosquito Lake could not be reliably confirmed.

Rainbow trout
Trout

Rainbow Trout

Lakes / lagoons: Rainbow trout are reported in Freshwater Lagoon and Ruth Lake. At Big Lagoon and Stone Lagoon, related trout records may refer to steelhead or coastal cutthroat trout rather than resident rainbow trout.

Notes: Rainbow trout are the freshwater form of the species whose ocean-going form is steelhead. Ruth Lake trout may be stocked periodically; confirm current stocking reports, access, and regulations before fishing.

Coho salmon
Migratory salmon

Coho Salmon

Lakes / lagoons: Coho salmon are associated with Stone Lagoon and suitable connected North Coast streams. They may use connected waters during seasonal migration; do not assume they are present in every lagoon at all times.

Notes: Coho are conservation-sensitive and fishing restrictions can be strict. Check current California Department of Fish and Wildlife rules before targeting or keeping one.

Chinook salmon
Migratory salmon

Chinook Salmon

Lakes / lagoons: Chinook salmon have been reported in the Stone Lagoon system and connected river systems. Their presence depends on run timing and water connectivity.

Notes: Do not assume a salmon run is open because fish may be present. Check current seasons and permitted reaches.

Largemouth bass
Warmwater fish

Largemouth Bass

Lakes / lagoons: Reported at Freshwater Lagoon and Ruth Lake.

Notes: Catch rates can change with water temperature, depth, and season. Verify local rules and access before fishing.

Smallmouth bass
Warmwater fish

Smallmouth Bass

Lakes / lagoons: Reported at Ruth Lake. A reliable source confirming smallmouth bass at the named coastal lagoons was not found.

Notes: Habitat and catch patterns vary. Check current local regulations.

Bluegill sunfish
Panfish

Bluegill

Lakes / lagoons: Reported at Ruth Lake and Freshwater Lagoon.

Notes: A small sunfish commonly associated with warmer, slower water. Confirm local reports before planning a trip.

Crappie
Panfish

Crappie

Lakes / lagoons: Reported at Ruth Lake. I could not confirm a dependable public record for the named coastal lagoons.

Notes: Species identification and local catch conditions may vary. Check current regulations.

Catfish
Freshwater fish

Catfish

Lakes / lagoons: Catfish are listed in local fishing references for Ruth Lake and are also reported for Freshwater Lagoon.

Notes: The exact catfish species may differ by source. Confirm identification and local rules.

Coastal cutthroat trout
Coastal native trout

Coastal Cutthroat Trout

Lakes / lagoons: Associated with Big Lagoon and Stone Lagoon, where conditions and connection to the ocean can change over time.

Notes: Use current local regulations and handling guidance; do not assume every lagoon is open to fishing year-round.

Surfperch
Coastal fish

Surfperch

Lakes / lagoons: Surfperch are associated with nearby coastal shorelines and adjacent ocean fishing areas, including around the Humboldt Lagoons region; this does not confirm they inhabit every lagoon's interior.

Notes: A dependable sport-fish list for Dry Lagoon itself was not confirmed; it is described primarily as a wetland/marsh. Do not assume the species listed for nearby lagoons are present there.

Brown trout
Trout

Brown Trout

Lakes / lagoons: German brown trout are reported at Freshwater Lagoon. I could not confirm a dependable species list for Sweasey Lake or Mosquito Lake.

Notes: Sweasey Lake and Mosquito Lake are intentionally not assigned guessed species. Verify exact-waterbody fish records and access locally.

Research references: California State Parks — lagoon ecology; State Parks — fishing and access; CDFW — Big Lagoon Wildlife Area; Ruth Lake CSD; Benbow State Recreation Area. Species presence is not a guarantee of current availability or legal harvest.

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