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Fish Community Structuring in the Restored Hobble Creek Delta : PowerPoint Presentation
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Fish Community Structuring in the Restored Hobble Creek Delta :. The Importance of Intrinsic Physical Habitat, Flood Dynamics and the Detection of Juvenile June Sucker ( Chasmistes liorus ). Chad Landress, Utah Division of Wildlife Resources. Background and Need. How do we get from this.

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slide1

Fish Community Structuring in the Restored Hobble Creek Delta:

The Importance of Intrinsic Physical Habitat, Flood Dynamics and the Detection of Juvenile June Sucker (Chasmistes liorus)

Chad Landress, Utah Division of Wildlife Resources

slide2

Background and Need

How do we get from this

to this?

slide3

Background and Need

  • Old channel was not used by June sucker
    • Lack of gradient
    • Debris jams
    • Diversion structure
    • Poor habitat within straight levees
slide4

Background and Need

Completed in November 2008

Converted a 21 acre field into a dynamic delta

slide8

Vegetation:

  • emergent
  • submergent
  • filamentous algae
  • woody debris
slide13

Timing of disconnection/reconnection with main channel

* pond where June sucker were detected

slide14

Species, number, and relative abundance of fish captured at Hobble Creek restoration area 2010, cumulative catch

slide15

Non-metric multi-dimensional scaling of fish community structure in Hobble Creek restoration ponds

slide16

Dominance, diversity and evenness of potential “sucker ponds”

* pond where June sucker were detected

slide17

Initial Conclusions

  • Water temperature
  • Food supply
  • Vegetative cover
  • Flood dynamics structure initial communities
  • Carp, vegetation, and predators
slide18

Acknowledgments:

  • June Sucker Recovery Implementation Program
  • Russ Rader
  • Melissa Stamp
  • David Tinsley, especially his eyes which spotted a lone June sucker in a seine with thousands of other fish and copious algae.