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The Bering Cisco (Coregonus laurettae) is endemic to Alaska and is present primarily along the State’s west and north coasts. It is known to spawn in only three river systems – the Yukon, Kuskokwim, and Susitna Rivers. Genetic research indicates that each of these populations is distinct. The Bering Cisco has been observed to migrate more than 1,200 miles into freshwater streams to spawn. Unlike salmon, some of these fish survive spawning runs. Since this species is slow-growing but short-lived, it is highly vulnerable to alterations in stream flow or water quality and large-scale environmental disasters.
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A greater percentage of Alaskan residents fish (53 percent in 2011) than residents of any other State. Alaska’s largest private sector employer is commercial fishing with total annual landings of fish products of 79 billion pounds (36 million metric tons). Nearly all of these fish are from self-sustaining populations. In 1867, the United States Secretary of State William H. Seward offered Russia $7,200,000, or two cents per acre, for Alaska. The State of Rhode Island could fit into Alaska 425 times. Most of America's salmon, crab, halibut, and herring come from Alaska. The State's coastline extends more than 6,600 miles. Alaska is the largest State in the United States and is more than twice the size of Texas.
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Although Alaska has substantial intact habitats, issues quickly appear in areas associated with development. The Arctic Grayling (Thymallus arcticus) requires large intact reaches of river to thrive. Some populations are stressed in developed areas as a result of habitat loss due to poorly designed road crossings that fragment streams along with poorly conducted mining, agricultural, and forestry practices.
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Chinook Salmon ( Oncorhynchus tshawytscha) is the largest-sized salmon species in the world and Alaska is a stronghold of self-sustaining populations. Since 2007, Chinook Salmon populations have been returning in fewer numbers to many Alaskan rivers throughout the State. This may be a result of intense fishing, poor ocean survival, and habitat loss and degradation in developing parts of the State, but because declines are so widespread, it could be a marine-derived problem. Scientists are currently working to determine the specific cause.


    map background search result map search result map Habitat Trouble for Chinook Salmon in Alaska Habitat Trouble for Arctic Grayling in Alaska Facts About Alaska Habitat Trouble for Chinook Salmon in Alaska Habitat Trouble for Arctic Grayling in Alaska Facts About Alaska