Ecology

Catch & Release Fishing Information

Click here for recent research on Steelhead distribution in the Eel River.

Learn about or report algal blooms: California Water Quality Monitoring Council.

California Coastal Chinook Chinook Salmon Male
  • Most plentiful of the remaining salmonid species in the Eel River
  • 3 – 5 year life cycle
  • Threatened under Federal ESA
Southern Oregon/Northern California Coho (SONCC) Coho Salmon Male
  • Coho in South Fork Eel River are considered a “critical population” important for recovery of Coho in the entire region
  • 3 year life cycle
  • Threatened under CA & Federal ESA
Northern California Steelhead Steelhead Trout
  • Likely multiple Evolutionary Significant Units (ESUs) in Eel River – Summer & Winter varieties.
  • Sexually mature at 2 – 3 yrs, may spawn multiple times in life
  • Threatened under Federal ESA
Pacific Lamprey Pacific Lamprey
Pacific Lamprey are one of the oldest fish species, relatively unchanged for 360 million years. These ancient invertebrates have 8X the fat content/weight and 20% more protein than salmon. They are a significant part of historic indigenous diets. When Lamprey disappear from the ecosystem, salmon are impacted both by the loss of a food source (lamprey feed of juvenile salmon, adult salmon feed on lamprey) and by greater predation from other animals. Learn more about the Pacific Lamprey from the Wiyot Tribe’s Natural Resources Department.
Green Sturgeon Green Sturgeon
Green Sturgeon in the Eel River are not protected, however their population is near extirpation. Learn more about Green Sturgeon from the Wiyot Tribe’s Natural Resources Department.

anatomy-of-a-river