OAR 635-100-0135
Survival Guidelines for Species Listed as Threatened or Endangered


As required by ORS 496.182 (Protection and conservation programs) and OAR 635-100-0130 (Requirement for Survival Guidelines), this rule describes survival guidelines for those species that were listed as threatened or endangered in 635-100-0125 (State List of Threatened and Endangered Species) after enactment of ORS 496.182 (Protection and conservation programs)(2). Survival guidelines described in this rule apply to state agencies that own or manage land where threatened or endangered species are present (OAR 635-100-0130 (Requirement for Survival Guidelines)).


Coho salmon with historic distribution in Columbia River tributaries downstream from Hood River qualify, by commission action, as an endangered species (OAR 635-100-0125 (State List of Threatened and Endangered Species)) effective July 1999. These fish, known as lower Columbia River coho salmon, occur only in the Clackamas River and Sandy River watersheds at the time of listing. The survival guidelines are as follows:


To prevent further degradation of water quality and water quantity, actions shall be avoided that:


Cause a violation of water quality standards established by the Oregon Department of Environmental Quality; or


Reduce stream flows below levels established in in-stream water rights by the Oregon Water Resources Department.


To conserve stream gravel, actions shall be avoided that remove gravel from areas used by naturally spawning coho salmon;


To protect riparian areas along those streams used by coho salmon for either spawning or juvenile rearing, actions shall be avoided that:


Eliminate mature forests within 100 feet of streams;


Prevent the natural re-establishment of mature forests within 100 feet of streams in areas where a mature forest previously existed; or


Degrade vegetative cover within 100 feet of streams in areas where no forest has previously existed.


To ensure survival of migrating coho juveniles and returning adults, activities shall be avoided that are inconsistent with:


Fish passage statutes ORS 498.351 and 509.605. These statutes require adequate upstream and downstream fish passage at dams or artificial obstructions; or


Fish screening statutes ORS 409.301 through 498.346 (Injunction to require compliance with screening or by-pass requirements) and 509.615. These statutes regulate water diversions and the prevention of fish from entering water diversions.


The total mortality impacts on ocean and in-river fisheries shall not exceed 15% of the total adult abundance of wild Lower Columbia coho salmon;


The impacts of hatchery programs for coho salmon in the lower Columbia River on wild coho populations shall be consistent with the limits imposed by the Wild Fish Management Policy (OAR 635-007-0527).

Source: Rule 635-100-0135 — Survival Guidelines for Species Listed as Threatened or Endangered, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=635-100-0135.

Wildlife Diversity Plan Definition of Terms
Wildlife Diversity Plan Content and Purpose
Wildlife Diversity Program Goal
Wildlife Diversity Program Objectives
Wildlife Diversity Plan Five-Year Review
Sensitive Species List
Threatened and Endangered Species List Policy Statement
Threatened and Endangered Species Definition of Terms
Criteria for Listing Threatened and Endangered Species
Procedure for Listing Threatened and Endangered Species
Reclassifying Threatened and Endangered Species
Removing Threatened and Endangered Species from the State List
Threatened and Endangered Species Technical Committees
Threatened and Endangered Species Temporary Listing
Threatened and Endangered Species Periodic Review of List
State List of Threatened and Endangered Species
Requirement for Survival Guidelines
Survival Guidelines for Species Listed as Threatened or Endangered
Survival Guidelines for Washington Ground Squirrel
Advisory Survival Guidelines for Marbled Murrelet
Endangered Species Management Plans for State Land Owning or Managing Agencies
Endangered Species Requirements for Agencies Other than State Land Owning or Managing Agencies
Classification of Agencies
Threatened and Endangered Species Incidental Take Permits
Western Snowy Plover
Lower Columbia River Coho Fishery Management
Lower Columbia River Coho Hatchery Programs
Lower Columbia River Coho Land Management
Lower Columbia River Coho Monitoring
Lower Columbia River Coho De-listing Criteria
Last Updated

Jun. 8, 2021

Rule 635-100-0135’s source at or​.us