Sampling data for steelhead at Tumwater Dam

Sampling data for adult steelhead at Tumwater Dam on the Wenatchee River, Washington, from 2007-2011. Columns: id = sample id (tied to genotype file), offspring = number of offspring assigned to adult via parentage, Sex.Changed = indication that the original sex designation was corrected, spawn.year = spawning year for fish, date = date fish passed the dam, date-dec31 = day of year where Jan1 is "1", final.status = status of fish, age = age of fish years, fresh.salt = winter in fresh and salt water based on scale analysis, salt.age = years in the ocean, sex = sex, origin = hatchery or wild (natural) origin, fkl = fork length in cm, brood.type = prior generation cross that produced a hatchery fish, final_stream = inferred spawning location, season = season of migration at Tumwater day (based on day 160), day-june9 = day of migration based on days after June 9.