russian river salmonids sean white mcrrfc&wcid. salmonid 101 taxonomy life cycle ecology run...
TRANSCRIPT
Russian River Salmonids
Sean WhiteMCRRFC&WCID
Salmonid 101
• Taxonomy • Life cycle• Ecology• Run timing• Distribution• Population status• Recovery Efforts• Questions
Taxonomy• Salmonidae
– “Salmonids”– Salmon– Trout– Char– Graylings
• Soft rays• Soft scales• Adipose fin
– “Marked”• Anadromous
Russian River Species
• Chinook Salmon (FT)– King Salmon
• Coho Salmon (FE, SE)– Silver Salmon
• Steelhead (FT)– Rainbow Trout
Lifecycle and Ecology• Exceptions
– Chinook smolt immediately– Coho adults age 3– Jacks– Carcasses– Steelhead may not die
• Anadromous– Sturgeon, striped bass
lampreys• Catadromous
– Mitten crab
Run TimingHome for the Holidays!
Chinook: Halloween to Thanksgiving
Coho: Thanksgiving to New Years
Steelhead: New Years to Easter
Distribution
• Chinook– Mainstem, West Fork, Dry Creek
• Coho – Tributaries in the lower river
including Willow, Freeze Out, Austin, Dutch Bill, Green Valley and Dry Creek and its Tributaries
• Steelhead– Everywhere!!!
Population Status
• Chinook– Adults 1500 to 6000– Part of Coastal Chinook ESU
• Coho– Unknown but LOW– Isolated tributary estimates– Part of CCC ESU
• Steelhead– Unknown but common– Part of CCC DPS
Recovery Efforts
• Chinook (1999)– No Recovery Plan– No supplementation
• Coho (1996)– State Recovery Plan– Draft Federal Recovery Plan– Captive Broodstock Program
• Steelhead (1997)– No Recovery Plan– Hatchery included in DPS
Questions?