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Potential future threats to chum salmon in Alaska include habitat loss, climate change, over fishing, and competition from hatchery fish. Sharks, … The seasonal peak for spawning is late-fall. Chum salmon experience a rapid growth rate during their first few months at sea and reach … These GIS data contain stream reaches that were designated as "critical habitat" for the Hood Canal Summer-run (HCS) chum salmon Evolutionarily Significant Unit (ESU). HABITAT: Chum salmon only exhibit one type of life history strategy and this is sea-run, and only inhabit fresh water during a short juvenile stage after hatching in their natal streams. Chum have huge teeth and pronounced hooked jaws, which may have given them the nickname Dog salmon. As such, the habitat for fresh water is not nearly as imporant to Chum Salmon as it is to other salmon species.
DIET: After hatching in their natal streams, juvenile chum salmon begin to feed on insects and other fresh water invertebrates. Chum salmon may historically have been the most abundant of all Pacific salmonids. Chum are the last of the Pacific salmon to return to freshwater to spawn. The critical habitat is defined in the National Marine Fisheries Service's (NOAA Fisheries) final rule to designate critical habitat for 12 ESUs of Pacific salmon and steelhead. A Salmon is any of seven different species in the Salmoninae subfamily. They are an anadromous fish, which means they can live in both fresh and saltwater. By this time, the Chum are about three or four years of age. Young chum salmon feed on insects as they migrate downriver and on insects and marine invertebrates in estuaries and near-shore marine habitats. The seven species are the Pink, Chum, Koho, Masu, Chinook, Sockeye, and Atlantic.Close relatives include whitefish, trout, grayling, and char.. People rely on several different species as sources of food, and raise some in … Various fish and birds prey on juvenile chum salmon. In Southeast Alaska, wild chum salmon production has also increased during the growth of hatchery production and is generally stable. Adults eat copepods, fishes, mollusks, squid, and tunicates. Habits and Habitat. Columbia Critical Habitat On September 2, 2005, the Columbia was designated as critical habitat for the threatened Columbia River ESU and Hood Canal Summer-run ESU.
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