OAR 635-100-0194
Lower Columbia River Coho De-listing Criteria

(1)

This rule describes the measurable criteria that define the minimum conservation goal for wild lower Columbia River coho. Upon meeting these criteria, ODFW shall be biologically justified to propose that species be removed from Oregon’s endangered species list.

(2)

For the purpose of evaluating the biological status of lower Columbia River wild coho with respect to the criteria described in this rule, the following geographic areas where wild coho presently exist or are believed likely to exist in the future are defined as the recovery population boundaries.

(a)

The Astoria population occurs in Youngs Bay tributaries and all Columbia tributaries upstream to and including Gnat Creek.

(b)

The Clatskanie population occurs in Columbia River tributaries upstream of Gnat Creek to and including the Clatskanie River basin.

(c)

The Scappoose population occurs in Columbia River tributaries upstream of the Clatskanie River to the mouth of the Willamette River.

(d)

The Clackamas population occurs in the Clackamas River basin plus Columbia River tributaries to the Willamette River downstream of Willamette Falls.

(e)

The Sandy population occurs in the Sandy basin plus Columbia River tributaries downstream to the mouth of the Willamette River.

(f)

The Bonneville population occurs in Columbia River tributaries upstream of the Sandy River to and including the Hood River basin.

(3)

To meet the minimum conservation goal, lower Columbia River coho must be found to meet all of the following biological criteria:

(a)

Population Distribution and Structure — Self-sustaining wild populations are present in the Sandy and Clackamas basins. In addition, at least two of the following populations (Astoria, Clatskanie, Scappoose, or Bonneville) are self-sustaining.

(b)

Diversity — Naturally reproducing wild coho are present in 65% of the named streams that historically contained coho. Human activities impose only minor artificial selection pressures on the phenotypic character of the wild populations. The ongoing impact of hatchery fish on the genetic character, evolutionary processes, and innate productivity of naturally reproducing populations is minor.

(c)

Abundance — For three consecutive years, the number of wild spawners is at least 50% of the level necessary to produce maximum smolt recruits (full seeding) for the Sandy, Clackamas, and in at least two of the following populations: Astoria, Clatskanie, Scappoose, and Bonneville.

(d)

Connectivity — No artificial barriers exist that prevent the dispersing of wild coho between naturally reproducing populations.

(e)

Persistence and Resilience — The probability of extinction in 36 years is less than 5% for the Sandy and Clackamas populations plus two of the following populations: Astoria, Clatskanie, Scappoose, and Bonneville.

Source: Rule 635-100-0194 — Lower Columbia River Coho De-listing Criteria, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=635-100-0194.

635‑100‑0001
Wildlife Diversity Plan Definition of Terms 635‑100‑0005
Wildlife Diversity Plan Content and Purpose 635‑100‑0010
Wildlife Diversity Program Goal 635‑100‑0015
Wildlife Diversity Program Objectives 635‑100‑0030
Wildlife Diversity Plan Five-Year Review 635‑100‑0040
Sensitive Species List 635‑100‑0080
Threatened and Endangered Species List Policy Statement 635‑100‑0100
Threatened and Endangered Species Definition of Terms 635‑100‑0105
Criteria for Listing Threatened and Endangered Species 635‑100‑0110
Procedure for Listing Threatened and Endangered Species 635‑100‑0111
Reclassifying Threatened and Endangered Species 635‑100‑0112
Removing Threatened and Endangered Species from the State List 635‑100‑0113
Threatened and Endangered Species Technical Committees 635‑100‑0115
Threatened and Endangered Species Temporary Listing 635‑100‑0120
Threatened and Endangered Species Periodic Review of List 635‑100‑0125
State List of Threatened and Endangered Species 635‑100‑0130
Requirement for Survival Guidelines 635‑100‑0135
Survival Guidelines for Species Listed as Threatened or Endangered 635‑100‑0136
Survival Guidelines for Washington Ground Squirrel 635‑100‑0137
Advisory Survival Guidelines for Marbled Murrelet 635‑100‑0140
Endangered Species Management Plans for State Land Owning or Managing Agencies 635‑100‑0150
Endangered Species Requirements for Agencies Other than State Land Owning or Managing Agencies 635‑100‑0160
Classification of Agencies 635‑100‑0170
Threatened and Endangered Species Incidental Take Permits 635‑100‑0180
Western Snowy Plover 635‑100‑0190
Lower Columbia River Coho Fishery Management 635‑100‑0191
Lower Columbia River Coho Hatchery Programs 635‑100‑0192
Lower Columbia River Coho Land Management 635‑100‑0193
Lower Columbia River Coho Monitoring 635‑100‑0194
Lower Columbia River Coho De-listing Criteria
Last Updated

Jun. 8, 2021

Rule 635-100-0194’s source at or​.us