Northern California Coast Coho Salmon Critical Habitat

The Southern Oregon/Northern California Evolutionary Significant Unit (SONCC ESU) of Coho Salmon was listed as threatened under the ESA on May 6, 1997. National Marine Fisheries Service designated critical habitat for two Evolutionarily Significant Units (ESUs) of coho salmon ( Oncorhynchus kisutch) pursuant to the Endangered Species Act in 1999). Critical habitat for the Southern Oregon/ Northern California Coasts ESU encompasses accessible reaches of all rivers (including estuarine areas and tributaries) between the Mattole River in California and the Elk River in Oregon, inclusive. It is found only in the Northern Region of California.

Critical habitat is the specific area within the geographic range of the species, occupied by the species at the time it was listed, that contain the physical or biological features that are essential to the conservation of endangered and threatened species and that may need special management or protection. Critical habitat may also include areas that were not occupied by the species at the time of listing but are essential to its conservation.

Critical habitat designations affect only Federal agency actions or federally funded or permitted activities. Critical habitat designations do not affect activities by private landowners if there is no Federal "nexus"'€”that is, no Federal funding or authorization. Federal agencies are required to avoid "destruction" or "adverse modification" of designated critical habitat. The ESA requires the designation of "critical habitat" for listed species when "prudent and determinable."

Data and Resources

Additional Info

Field Value
Last Updated January 24, 2025, 06:53 (UTC)
Created January 24, 2025, 06:53 (UTC)
category /Biodiversity Conservation/Focal Species/Fish
collection_name California Landscape Metrics
creation_method The National Marine Fisheries Service proposed a critical habitat designation, publishing it in the Federal Register and requesting public comments. Final designation of critical habitat is based on the best scientific data available, after taking into consideration the probable economic and other impacts of the designation. After reviewing the comments, the National Marine Fisheries Service responded to them and published a rule, including final boundaries, in the Federal Register.
data_units Binary; 0 = not critical habitat, 1 = designated critical habitat.
data_vintage 05/1999
encoding utf8
file_name CohoSalmonCriticalHab_199905_202401_T2_v5
format GeoTiff
harvest_object_id c7833bdc-7bb5-4dd8-8595-0de84d1929e3
harvest_source_id a2637971-af12-457f-ae4a-831d2202a539
harvest_source_title WIFIRE Commons
maximum_value 1.0
metric_definition_and_relevance The Southern Oregon/Northern California Evolutionary Significant Unit (SONCC ESU) of Coho Salmon was listed as threatened under the ESA on May 6, 1997. National Marine Fisheries Service designated critical habitat for two Evolutionarily Significant Units (ESUs) of coho salmon ( _Oncorhynchus kisutch)_ pursuant to the Endangered Species Act in 1999). Critical habitat for the Southern Oregon/ Northern California Coasts ESU encompasses accessible reaches of all rivers (including estuarine areas and tributaries) between the Mattole River in California and the Elk River in Oregon, inclusive. It is found only in the Northern Region of California. Critical habitat is the specific area within the geographic range of the species, occupied by the species at the time it was listed, that contain the physical or biological features that are essential to the conservation of endangered and threatened species and that may need special management or protection. Critical habitat may also include areas that were not occupied by the species at the time of listing but are essential to its conservation. Critical habitat designations affect only Federal agency actions or federally funded or permitted activities. Critical habitat designations do not affect activities by private landowners if there is no Federal "nexus"'€”that is, no Federal funding or authorization. Federal agencies are required to avoid "destruction" or "adverse modification" of designated critical habitat. The ESA requires the designation of "critical habitat" for listed species when "prudent and determinable."
minimum_value 0.0
spatial {"type": "Polygon", "coordinates": [[[-124.93279620486966, 32.18296149262619], [-113.05514678277414, 32.18296149262619], [-113.05514678277414, 42.41053302087671], [-124.93279620486966, 42.41053302087671], [-124.93279620486966, 32.18296149262619]]]}
tier 2