Utilization of Off-Channel Habitats in the Entiat River by Juvenile - - PowerPoint PPT Presentation

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Utilization of Off-Channel Habitats in the Entiat River by Juvenile - - PowerPoint PPT Presentation

Feb 10, 2024 137 likes •378 views

Utilization of Off-Channel Habitats in the Entiat River by Juvenile Salmonids Nicholas Albrecht, Tom Desgroseillier, and Jeffrey Grote 2016 Upper Columbia Science Conference January 27-28, 2016 Entiat River History photographs courtesy of the

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SLIDE 1

Utilization of Off-Channel Habitats in the Entiat River by Juvenile Salmonids

Nicholas Albrecht, Tom Desgroseillier, and Jeffrey Grote 2016 Upper Columbia Science Conference January 27-28, 2016

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SLIDE 2

Entiat River History

photographs courtesy of the Washington State Historical Society, CCD, Bureau of Reclamation, and U.S. Fish and Wildlife

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SLIDE 3

Off-Channel Habitats

  • Importance for Fish

– High Spatial Heterogeneity – Input of organic matter – Refugia from mainstem habitats – Predator avoidance – Improve survival and growth – Reduce competition for food and space

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SLIDE 4

Goals

  • Help inform habitat restoration managers how

fish are using side-channels

  • Help future side-channel habitat restoration

projects meet their goals and objectives

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SLIDE 5

Methods

  • Mark-Recapture

– Mainstem(IMW)

  • Summer/Winter

– Side-channel

  • Summer/Fall/Winter
  • Survival

– Barker model

  • PIT Tag Interrogation
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SLIDE 6

Juvenile Chinook

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SLIDE 7

Juvenile Chinook Density in the Summer

Brood Year 2012 2013 2014 Density (Fish/m2) 0.0 0.5 1.0 1.5 2.0 2.5

3D (Upper) Tyee (Upper) Wilson's (Upper) SanRay (Upper) Harrison's (Upper)

Lower Upper

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SLIDE 8

Seasonal Trends in Juvenile Chinook Abundance

Upper Sites Lower Sites

Tyee Brood Year 2012 2013 2014 Abundance 200 400 600 800 1000 Summer Fall Winter SanRay Brood Year 2011 2012 2013 2014 Abundance 200 400 600 800 1000 Summer Fall Winter

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SLIDE 9

Survival

Over-Summer Survival Brood Year 2012 2013 Apparent Survival Probability 0.0 0.2 0.4 0.6 0.8 1.0

3D (Upper) Tyee (Upper) Wilson's (Lower) SanRay (Lower) Harrison's (Lower)

Over-Winter Survival Brood Year 2012 2013 Apparent Survival Probability 0.0 0.2 0.4 0.6 0.8 1.0

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SLIDE 10

Movement

Summer

Upper Sites Lower Sites

3D Days After Marking

1-10 11-30 31-60 61-90 91-120 121-150 151-180 181-210 211-240 More

Proportion of Last Detection 0.0 0.1 0.2 0.3 0.4 0.5 0.6 Winter Summer Fall Spring Wilson's Days After Marking

1-10 11-30 31-60 61-90 91-120 121-150 151-180 181-210 211-240 More

Proportion of Last Detection 0.0 0.1 0.2 0.3 0.4 0.5 0.6 Spring Summer Fall Winter

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SLIDE 11

Movement

Fall

Upper Sites Lower Sites

Tyee Days After Marking

1-10 11-30 31-60 61-90 91-120 121-150 151-180 181-210 211-240 More

Proportion of Last Detection 0.0 0.1 0.2 0.3 0.4 0.5 0.6 Winter Fall Spring

Wilson's Days After Marking

1-10 11-30 31-60 61-90 91-120 121-150 151-180 181-210 211-240 More

Proportion of Last Detection 0.0 0.1 0.2 0.3 0.4 0.5 0.6 Spring Fall

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SLIDE 12

Movement

Winter

All Sites

Wilson's Days After Marking

1-10 11-30 31-60 61-90 91-120 121-150 151-180 181-210 211-240 More

Proportion of Last Detection 0.0 0.1 0.2 0.3 0.4 0.5 0.6 Spring Summer

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SLIDE 13

Steelhead

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SLIDE 14

Steelhead Density in the Summer

Year 2013 2014 2015 Density (Fish/m2) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7

3D (Upper) Tyee (Upper) Wilson's (Lower) SanRay (Lower) Harrison's (Lower) Lower Upper

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SLIDE 15

Steelhead Density in the Winter

Year 2013 2014 2015 Density (Fish/m2) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7

3D (Upper) Tyee (Upper) Wilson's (Lower) SanRay (Lower) Harrison's (Lower) Lower Upper

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SLIDE 16

Seasonal Trends in Steelhead Abundance

All Sites

SanRay Year 2012 2013 2014 2015 Abundance 100 200 300 400

Summer Fall Winter

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SLIDE 17

Survival

Over-Summer Survival Year 2013 2014 Apparent Survival Probability 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4

3D (Upper) Tyee (Upper) Wilson's (Lower) SanRay (Lower) Harrison's (Lower)

Over-Winter Survival Year 2013 2014 Apparent Survival Probability 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4

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Movement

All Sites

SanRay Days After Marking

1-10 11-30 31-60 61-90 91-120 121-150 151-180 181-210 211-240 More

Proportion of Last Detection 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 Spring Summer Fall

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SLIDE 19

Movement

All Sites

SanRay Days After Marking

1-10 11-30 31-60 61-90 91-120 121-150 151-180 181-210 211-240 More

Proportion of Last Detection 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 Fall Winter Spring Summer

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SLIDE 20

Movement

All Sites

Harrison's Days After Marking

1-10 11-30 31-60 61-90 91-120 121-150 151-180 181-210 211-240 More

Proportion of Last Detection 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 Winter Spring Summer Fall

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SLIDE 21

Chinook Discussion/Relevance

  • Density/Abundance

– Higher densities in side-channels than the mainstem – Spatial difference in seasonal abundance

  • Survival

– Higher in Upper side-channels

  • Movement/Occupation

– Spatial difference in occupation

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SLIDE 22

Steelhead Discussion/Relevance

  • Density/Abundance

– Low summer densities, but higher fall and winter densities – Increase in abundance from summer to fall/winter

  • Survival

– Similiar survival between sites and spatial distribution of the sites

  • Movement/Occupation

– 3 Periods of movement

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SLIDE 23

Future Directions

  • Continuing project effectiveness monitoring in

the off-channel habitats

  • Test the transferability of the Entiat

information to other local watersheds

  • Provide input to habitat restoration managers