Class

Article

College

College of Agriculture and Applied Sciences

Department

Watershed Sciences Department

Faculty Mentor

Timothy Walsworth

Presentation Type

Poster Presentation

Abstract

Introduction

  • Temporarily available streams, including intermittent streams, account for roughly 79% of streams in Utah alone (National Hydrography Dataset (NHD) 2008; Goodrich et al., 2018), yet are often overlooked as suitable habitats for native fishes.
  • Intermittent streams are inundated during native Cutthroat Trout (Oncorhynchus clarkii) spawning season (Budy et al., 2012) and can be used by spawning trout during some years (Rousseau 2024)
  • Understanding the role of intermittent streams for productivity of basin scale populations is critical to determining the scale of habitats necessary to conserve stable, productive populations.
  • To characterize intermittently available spawning habitats, we assess the following objectives:

  1. Characterize spawning habitat suitability among intermittent and perennial tributaries under different snowpack conditions.

  2. Compare response diversity among tributaries to changing climatic conditions within the Logan River Watershed across three years.

  3. Assess the interannual variation in spawning habitat suitability within individual tributaries and at the basin scale as a whole.


Location

Logan, UT

Start Date

4-9-2025 3:30 PM

End Date

4-9-2025 4:20 PM

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Apr 9th, 3:30 PM Apr 9th, 4:20 PM

Assessing Response Diversity of Spawning Conditions Among Streams Due to Interannual Changes in Snowpack

Logan, UT

Introduction

  • Temporarily available streams, including intermittent streams, account for roughly 79% of streams in Utah alone (National Hydrography Dataset (NHD) 2008; Goodrich et al., 2018), yet are often overlooked as suitable habitats for native fishes.
  • Intermittent streams are inundated during native Cutthroat Trout (Oncorhynchus clarkii) spawning season (Budy et al., 2012) and can be used by spawning trout during some years (Rousseau 2024)
  • Understanding the role of intermittent streams for productivity of basin scale populations is critical to determining the scale of habitats necessary to conserve stable, productive populations.
  • To characterize intermittently available spawning habitats, we assess the following objectives:

  1. Characterize spawning habitat suitability among intermittent and perennial tributaries under different snowpack conditions.

  2. Compare response diversity among tributaries to changing climatic conditions within the Logan River Watershed across three years.

  3. Assess the interannual variation in spawning habitat suitability within individual tributaries and at the basin scale as a whole.