2024 Coastal Cutthroat Trout Symposium

Photo Credit: James R. Tomelleri

April 9-10, 2024

at the Agate Beach Inn Best Western in Newport, Oregon


Previous Symposium Goals:

  • 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.

Register Here

Oral and Poster Presentation Guidelines

                      • Oral Presentations are now closed.
                      • Poster Presentations are due by April 3, 2024
                      • Oral Presentation slides must be uploaded by April 7, 2024

2024 CCT Symposium Agenda (PDF Download)


 Tuesday, April 9, 2024

Taxonomy – Moderator: Kitty Griswold

8:15 – WNTI Overview, JD Davis, WNTI (virtual) – Davis_J_Abstract

8:25 – Revised Classification and Taxonomy of Cutthroat Trout—An Update – Pat Trotter, Fishery Science Consultant – Trotter_P_Abstract

8:55 – Taxonomic (r)evolution in Oncorhynchus clarkii (Cutthroat Trout): Now is the future – Paul Evans, BYU – Evans_P_Abstract

9:15 – CCT Interagency Committee Overview and Update – Kitty Griswold, ISU – Griswold_K_Talk 1_Abstract

9:30 – Discussion

Coastal Cutthroat Trout Jurisdictional Updates – Moderator: Kara Anlauf-Dunn

10:00  Cutthroat Trout distribution, population trends, and life history nuggets: Inferences from unintentional monitoring in Coastal California – Seth Ricker, CDFW (virtual)

10:25  Oregon– Chris Lorion, ODFW – Lorion_C_Abstract

10:50  British Columbia – Sierra Sullivan, BC Government –Sullivan_S_Abstract

11:15  Alaska– Craig Schwanke, ADFG – Schwanke_C_Abstract

11:40   Q&A Session

1:00 – CCT Range-Wide Coordination – Data Gaps, Needs, Future – Kitty Griswold, ISU – Griswold_K_Talk 2_Abstract

Distribution and Ecology – Moderator: Sam Rizza

1:20 – Synthesis of empirical anadromous Coastal Cutthroat smolt abundance and the prediction of wild smolt production at the watershed or sub-basin level – Ron Ptolemy, BC Ministry of Water, Land, and Resource Stewardship – Ptolemy_R_Abstract

1:40 – Documenting Prince William Sound’s Coastal Cutthroat Trout: Informative anglers, electrofishing, and future plans– Donnie Arthur & Nate Cathcart, ADFG – Arthur-Cathcart_Abstract

2:30 – Exploring the upper distribution limits of fish in streams– Brooke Penaluna, USDA – Penaluna_B_Abstract

Genetics – Moderator:  Hannah Barrett

3:20 – Hybridization and population structure of CCT at the southern tip of their range – Sam Rizza, TRIB Research – Rizza_S_Abstract

3:40 – Preliminary results of population distribution, genetic structure and diversity of Coastal Cutthroat Trout (Oncorhynchus clarkii) throughout Washington and Oregon states – Amelia Louden, WDFW – Louden_etal_Abstract

4:00 – The genome assembly of Coastal Cutthroat Trout and it’s utility for species’ conservation and management– Alex Fraik, USFS National Genomics Center – Fraik_A_Abstract

4:20 – Panel: Issues including conservation planning, limited resources for monitoring, public engagement, partnerships.

5:00 – Adjourn

Poster Session & Dinner – Rainbow Room




 Wednesday, April 10, 2024

Adaptation and Thermal Regime – Moderator: Alex Fraik

8:05 – Floodplain thermal refuge use by a cold-water fish: how coastal cutthroat trout navigate warming temperatures in a large mainstem river – Hannah Barrett, OSU – Barrett_H_Abstract

8:45 – Potential longitudinal shifts in density and size of Coastal Cutthroat Trout after the Lookout Creek wildfire, Oregon – Ivan Arismendi, OSU – Arismendi_I_Abstract

9:05 – Temperature conditions and thermal tolerances: a comparison across salmonids – Kara Anlauf-Dunn, ODFW – Anlauf-Dunn_Abstract

9:25 – Coastal Cutthroat trout resilience to wildfires in the western Cascade Mountains – Dana Warren, OSU – Warren_D_Abstract

9:45 – Long-term population response of Coastal Cutthroat Trout to environmental fluctuations in a temperate-rainforest stream: hydrology, temperature, and invasive weeds and other biotic factors – Bob Vadas, WDFW (virtual) – Vadas et al_Abstract

10:05 – The physiology and energetics of alternative summer habitat use in Willamette cutthroat trout – Dr. Jonny Armstrong, OSU – Armstrong_J_Abstract

Management – Moderator: Tom Friesen

10:40 – Precision and bias of snorkel survey counts of Coastal Cutthroat Trout (O. clarkii)– Ron Constable, ODFW – Constable_R_Abstract

11:00 – Gleaning Coastal Cutthroat Data from 27+ Years of Salmon & Steelhead Monitoring – Matt Weeber, ODFW – Weeber_M_Abstract

11:20 – An Odd thing happened…while maintaining a culvert sediment trap…could it contribute to our understanding of Coastal Cutthroat Trout spawn timing? – Ted Parker, Snohomish County – Parker_T_Abstract

11:40 – Isolated native Coastal Cutthroat populations in the San Juan Islands, WA, threatened by the effects of residential development and climate change on instream flow regimes– (Virtual) Russ Barsh, Kwiáht – Barsh_Murphy_Abstract

Not able to present:

Impacts of catch and release angling on anadromous salmonids – Ian Courter, Mt. Hood Environmental – Courter_I_Abstract