2018 Coastal Cutthroat Trout Symposium

Photo Credit: James R. Tomelleri

Held November 7-8 2018, in Newport, Oregon

Final Agenda


  • Advance the conservation and sustainable management of Coastal Cutthroat Trout by sharing information and knowledge gained since the 2005 Coastal Cutthroat Trout Symposium;
  • Identify and enhance essential knowledge on trout life history and ecology;
  • Provide the latest assessments of the status of populations coast-wide with emphasis on anadromous populations;
  • Define and seek solutions to the problems associated with cutthroat trout management;
  • Discuss the future of Coastal Cutthroat Trout and advance the development of a coordinated, range-wide conservation plan including data sharing.

Introduction: Past, Present, and Future of Coastal Cutthroat Trout –Kitty Griswold and Stephen Phillips, PSMFC

EVOLUTION AND TAXONOMY – Moderator: Kitty Griswold

Cutthroat Trout Evolutionary Biology and Taxonomy – Pat Trotter, Fishery Science Consultant

Geographic Variation, Isolation, and Evolution of Cutthroat Trout  – Dennis Shiozawa & Paul Evans , BYU

Diversity of Coastal Cutthroat Trout across their Distributional Range – Tommy Williams, NMFS


California– Justin Garwood, CDFW

Oregon – Chris Lorion, ODFW

Washington – James Losee, WDFW

British Columbia – Ron Ptolemy, BC Government

Alaska –Roger Harding, ADF&G-Retired

STATUS, TRENDS, AND MANAGEMENT – Moderator: James Lossee

Status of Coastal Cutthroat Trout in the Continental US – Kitty Griswold, PSMFC

Geographic Variation, Isolation, and Evolution of Cutthroat Trout – Christopher Burns, LGL Limited

Environmental Predictors of Spawn Timing – Riley Freeman, WDFW

An urban stream can support a healthy population of Coastal Cutthroat Trout – Brook Silver, USFWS

Smith River Population Structure – Sam Rizza, Stillwater Sciences

BIOLOGY SESSION (Day one) – Moderator: Deborah Hart

Ocean distribution and ecology of Coastal Cutthroat Trout – William Pearcy, OSUC

Comparison of Age & Life-History Estimates in Puget Sound – Andrew Claiborne, WDFW

Life History Strategies & Movement Patterns – Gabe Madel, WDFW

BIOLOGY SESSION (Day two) – Moderator: Ron Ptolemy

Coastal Cutthroat Trout Response to Environmental Extremes – Brooke Penaluna, USFS

Status of CCT in the San Juan Archipelago – Jamie Glasgow, Wild Fish Conservancy, Washington

Using Angler Reported Catch to Determine the Prevalence of CCT Ectoparasite Infections – Derek Dapp, WDFW

Should I stay or should I go now? Seasonal migration in the Long Tom River – Karen Hans, ODFW

Influence of CCT on Food Web Topology & Community Stability in Headwater Streams– –Lauren Zatkos, OSU

BIOLOGY SESSION (Day two) Moderator: Lauren Zatkos, OSU

Population Dynamics of Coastal Cutthroat Trout in Old-Growth – Stan Gregory, OSU

Comparative Feeding Ecology of Coastal Cutthroat Trout and Rainbow Trout in the Cedar River – Roger Tabor, USFWS

Recovery of Fish Populations & Physical Channel Characteristics – Jason Walter, Weyerhaeuser

Willamette River Coastal Cutthroat Trout, Seasonal Movements – Hannah Barrett, OSU

CCT Responses to Gap Formation in the Riparian Forest Canopy – Dana Warren, OSU

BIOLOGY SESSION(Day two) Moderator: Brooke Penaluna

Multi-Scale Assessment of CCT Demographics in Headwater Streams of Western Oregon – Doug Bateman, USGS

Muted Response by Anadromous Salmonids – Ron Ptolemy, British Columbia

Long-Term Population Response of CCT to Environmental Fluctuations in a Temperate Rainforest Stream – Robert Vadas, WDFW

Density-Dependence vs Density Independence – Ivan Arismendi, OSU

The Challenges of Climate Change to Coastal Cutthroat Trout Across Their Distributional Range – Gordon Reeves, USFS

Thermal Tolerance of Coastal Cutthroat Trout – Kara Anlauf-Dunn, ODFW


WNTI Perspectives on CCT Partnerships and Conservation – Therese Thompson, Western Native Trout Initiative

USFS Perspectives on CCT Conservation using Redband Trout as case study – James Capurso, USFS