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There are many threats to the survival of the Southern California Steelhead DPS. Principal threats include, but are not limited to, alteration of stream flow patterns and habitat degradation, barriers to fish passages, channel alterations, water quality problems, non-native exotic fish and plants and climate change. [5]
Endangered and Threatened Species DPS and ESU U.S. range for Steelhead and Salmon. The National Oceanic and Atmospheric Administration, in cooperation with the U.S. Fish and Wildlife Service and Environmental Protection Agency, groups steelhead and salmon into distinct population segments (DPS).
Only 177 Southern California steelhead have been seen in the last 25 years, he says. ... Many local people and fish enthusiasts — like California Trout — have been trying to tear down Matilija ...
A 2012 federal recovery plan reported that fewer than 500 adult Southern California steelhead return annually to natal waters located between southern San Luis Obispo County and the U.S.-Mexico ...
Southern California steelhead trout have been pushed to the brink of extinction as their river habitats have been altered by development and fragmented by barriers and dams.
In February, 1999, steelhead (Oncorhyncus mykiss irideus) were discovered in the creek by Toby Shackelford, making San Mateo Creek the only watercourse south of Malibu Creek in Los Angeles County with steelhead in the endangered Southern California Steelhead DPS. [19] Steelhead have historically spawned in the creek, whose upper reaches also ...
Malibu Creek Steelhead (c.1943) It is estimated that Steelhead (Oncorhyncus mykiss irideus) populations within the Southern California Coast Steelhead Distinct population segment (DPS) have declined dramatically from annual runs totaling 32,000-46,000 adults to less than 500 returning adult fish. [10]
Oct. 15—The steelhead fishing season on much of the Clearwater River switches to catch-and-release status starting today, a 180-degree pivot from its longtime structure and one that could pay ...