Beta regression of the proportions of 4-, 3-, and 2-ocean Chinook salmon by brood year returning to spawning areas from 1983 to 2012.

Bold indicates slope (log(odds)year-1) is significantly (P Beta regression of the proportions of 4-, 3-, and 2-ocean Chinook salmon by brood year returning to spawning areas from 1983 to 2012.本图表中加粗字体代表：针对1983年至2012年间按繁育年份返回产卵场的4海龄、3海龄、2海龄奇努克鲑鱼（Chinook salmon）占比开展贝塔回归（Beta regression）分析所得的斜率（对数优势比·年⁻¹）具有统计学显著性（P值）。