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spawning <strong>and</strong> contribute significant marine derived biomass to the freshwater <strong>and</strong> terrestrial<br />
ecosystems.<br />
Escapement Data<br />
Of the 167 salmon bearing streams on the North Coast, 137 have supported runs <strong>of</strong> chum salmon.<br />
Of these, 27 are identified as questionable stocks (fewer than 4 records >25 spawners). A complete<br />
list <strong>of</strong> all chum streams is included in Appendix I <strong>and</strong> escapement trends are presented in Section<br />
3.2.2. Table 4 lists those streams that have average escapements >2000 fish. Historically, some<br />
streams have had substantially large escapements including:<br />
• Ecstall River, 75,000 in 1988<br />
• Stagoo Creek, 70,000 in 1974<br />
• Quall River, 65,000 in 1988<br />
• Kshwan River, 50,000 in 1993<br />
Table 4. Max <strong>and</strong> Mean escapement data (1950-2001) for chum streams in the NC LRMP area that have average<br />
escapements >2000 fish.<br />
Coho Salmon<br />
Stream Max Mean<br />
Stagoo Creek 70,000 9,825<br />
Ecstall River 75,000 9,370<br />
Kshwan River 50,000 8,381<br />
Quaal River 65,000 7,423<br />
Khutzeymateen River 35,000 6,623<br />
Toon River 40,000 6,294<br />
Kiltuish River 35,000 5,777<br />
Kitsault River 15,000 4,865<br />
Illiance River 22,000 3,721<br />
Kingkown Inlet System 13,000 2,796<br />
Turn Creek 35,000 2,690<br />
Eagle Creek 15,000 2,647<br />
Kwinamass River 12,000 2,203<br />
Kdelmashan Creek 7,500 2,007<br />
Description<br />
Coho salmon grow in length to approximately 38 inches (98 cm) <strong>and</strong> weigh up to 31 pounds (14 kg),<br />
however, mature adults are usually between 6 <strong>and</strong> 12 pounds (2.7-5.4 kg).<br />
Life Cycle<br />
Mature adults are usually between the ages <strong>of</strong> 3 <strong>and</strong> 5 <strong>and</strong> migrate to freshwater streams to spawn in<br />
the fall, between August <strong>and</strong> October. Spawning areas are usually small, gravelly streams <strong>and</strong> are<br />
<strong>of</strong>ten tributaries <strong>of</strong> a larger river. The spawning event usually takes place between August <strong>and</strong><br />
December on the North Coast. Eggs incubate in the gravel over winter <strong>and</strong> hatch around April.<br />
Juvenile coho may spend up to two years rearing in freshwater tributary streams prior to smolting.<br />
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