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Enhancement covers a wide range of programs, including hatcheries, lake enrichment, fishways, spawning channels, fish rearing, stream surveys, and habitat improvement.
In addition to extensive government programs, Canada and the United States enjoy a large and vital volunteer force in salmon enhancement. Thousands of volunteers in Washington, Oregon, and British Columbia- from school children to senior citizens- actively participate in more than one thousand public involvement projects and are a valued part of salmon enhancement efforts.
The Salmon Treaty offers each country the opportunity to begin new enhancement programs or expand existing operations with confidence that the benefits of those activities will not be lost to uncontrolled intercepting fisheries.
Value of the Salmon fisheries
Salmon play an important role in the social and economic fabric of North America's Pacific coast. Along with a cultural and historical value intricately woven into the society, the economic value of the salmon has a tremendous impact on the quality of life.
Tribal groups and First Nations of the region depend upon the Pacific Salmon in almost every facet of their existence. The fish hold a central place in the ceremonial, subsistence and commercial aspects of these people's lives.
Each year the commercial and recreational salmon fisheries are worth millions of dollars to the economies of both the United States and Canada.
The impact of the Pacific salmon fisheries can be seen in the thousands of jobs and scores of industries they support. A partial list of fishing-dependent businesses would include marina operations, fish processing industries, transportation, fuel sales, boat building and repair, retail fish sales, tackle manufacturers and distributors, hotels, restaurants and resorts. The Pacific Salmon Treaty provides strong assurance of a more stable and prosperous future for many such enterprises.
Biology of Pacific Salmon
The five species of Pacific Salmon found along the west coast of North America are anadromous - they migrate from the ocean to freshwater to spawn. Spawning completes their life cycle begun in the same freshwater stream two to six years earlier. Homing of Pacific Salmon to their stream of origin results in important biological characteristics for groups or stocks of fish. Each stock is genetically adapted to the environment in which it resides, and exhibits unique characteristics such as migration route, migration timing, and productivity. Such biological traits make consideration of individual stocks an important part of salmon management, designed to produce optimum production from the resource.
Names and Characteristics of Pacific Salmon
Oncorhynchus tshawytscha: Chinook, King, Spring, Tyee, Blackmouth, Quinnat
Largest of the five species, chinook average 15-20 pounds, but can weigh over 100 pounds. This species matures in 3 to 6 years. Major stocks originate in large rivers, such as the Columbia. Juveniles may migrate directly to the sea or rear for up to a year in freshwater.
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Oncorhynchus keta: Chum, Dog, Keta
A large species, averaging ten pounds. Juveniles migrate directly to sea without rearing. Chum salmon mature after 3 or 4 years at sea.
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Oncorhynchus kisutch: Coho, Silver
A moderate sized species, coho average eight pounds, but can weigh over 30 pounds. Coho rear from 1 to 2 years in freshwater and mature in the fall of the second year at sea. Usually found in shorter coastal rivers.
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Oncorhynchus nerka: Sockeye, Red, Blueback
A smaller species, averaging about six pounds, sockeye typically rear for 1 or 2 years in lakes prior to migrating to sea. The fish mature after 2 or 3 years at sea.
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Oncorhynchus gorbuscha: Pink, Humpback
The smallest and most abundant species, pink salmon average three to five pounds. This species matures in 2 years. The juveniles migrate directly to estuaries without rearing in freshwater.
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