Fish Status & Trends in the Siskiyou Region

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Fish in the Siskiyou Region

Chinook Salmon- Spring & Fall Run

Coho Salmon

Steelhead- Summer and Winter Run

Coastal Cutthroat Trout

Redband Trout (Jenny Creek)

Other Native Species- Green Sturgeon, White Sturgeon, Speckled Dace, Sculpin,Smallscale Sucker, Pacific Lamprey

Photo by P. Samarin, ODFW

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Landscape and HabitatLimiting FactorsStatus & TrendsThermal ComplexityLooking Forward

Siskiyou Region Fish Populations

Photo by P. SamarinPhoto by R. Battleson, ODFW

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Siskiyou Region – Landscape & Habitat

- Multiple Ecoregions- Ecological Ties- Less Precipitation- Higher Temperatures- Steeper Stream Gradients- Erosive Geology- Human Footprint

Siskiyou Region outlined in redAGENDA ITEM A

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Landscape and HabitatLimiting FactorsStatus & TrendsThermal ComplexityLooking Forward

Siskiyou Region Fish Populations

Photo by River Design Group

- Temperature- Flow- Habitat (Complexity & Connectivity)- Non-native Species- Harvest- Hatcheries- Ocean Conditions (*)

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Habitat Use/DistributionLimiting FactorsStatus & TrendsThermal ComplexityLooking Forward

Siskiyou Region Fish Populations

Artwork by Jill Pelto

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Spring Chinook Fall Chinook Coho Salmon

Summer Steelhead Winter Steelhead Cutthroat & Redband

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Spring RunRogue Spring Chinook Conservation Plan (2007)

- Habitat Protection & Restoration b/l William Jess Dam- Reservoir Management Coordination - Habitat Enhancement in Big Butte Creek- Predation- Manage Fishery Impacts- Manage Hatchery Impacts

Fall RunRogue Fall Chinook Conservation Plan (2013)

- Habitat Restoration, Maintenance & Enhancement- Reservoir Management Coordination- Non-Native Species- Predation - Manage Fishery Impacts

Chinook Salmon

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Desired Status

Conservation Criterion

Abundance

Spawner Distribution

CompositionDesired Status

Cons. Criterion

William Jess DamCompleted

Conservation PlanImplemented

Rogue Spring Chinook

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Desired Status

Cons. Criterion

Conservation Plan Adopted

Rogue Fall Chinook – Rogue Aggregate Populations

Desired Status

Conservation Criterion

Abundance

Age Structure

Timing

Composition

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Southern Oregon/Northern California CoastFederally Listed – ThreatenedSONCC Coho Federal Recovery Plan (2014)- Near extirpation (late 1960s/early 1970s)- Gradient/temperatures limit distribution- Riparian/Habitat restoration- Enhancing cold water

Coho Salmon

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Coho Salmon

Juvenile Occupancy Adult Abundance

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Summer and Winter RunsNative Fish Status Report (2005)Rogue-South Coast Multispecies Plan (in progress)

- Migrate among small and large tributaries and the mainstem Rogue

- Capable of using seasonally-available water- Temperature & Passage- Conservative harvest regulations

Half Pounders- Only in Oregon and some N. California streams- Most Rogue summer steelhead; many Rogue winter

steelhead- Size of Rogue Steelhead - Popular fishery in lower and middle Rogue

Steelhead

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Steelhead Juveniles and Half-Pounders

Juvenile Occupancy

½ Pounder Abundance

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Steelhead Adults

Summer SteelheadWinter Steelhead

*Only upper Rogue; ~25% of habitatAGENDA ITEM A

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S. Oregon Species Management UnitNative Fish Status Report (2005)Rogue-South Coast Multispecies Plan (in progress)

- Anadromous and Fluvial Life Histories- Diverse Habitat Use and Movement- Broadly Distributed

Coastal Cutthroat Trout

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Upper Klamath Species Management UnitNative Fish Status Report (2005)Jenny Creek Population- Isolated above barrier falls

- Jenny Creek Smallscale Sucker

Photo by T. Smith, USFS

Redband Trout

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Habitat Use/DistributionLimiting FactorsStatus & TrendsThermal ComplexityLooking Forward

Siskiyou Region Fish Populations

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Thermal Complexity

Thermal Complexity- Magnitude- Range- Frequency- Duration- Time and Space- Rate of Change

Fish Life History Attributes

Fish Use of the Stream Network

Complexity

Diversity

Stability & Resilience

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Thermal Complexity

Adult Chinook Salmon seeking thermal refuge at a tributary mouth (Stair Creek)

Photo by R. Janssen Photo by R. Janssen

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Habitat Use/DistributionLimiting FactorsStatus & TrendsThermal ComplexityLooking Forward

Siskiyou Region Fish Populations

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Current Baseline

2080Projection

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Questions?

Siskiyou Region Fish Populations

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