Species at Risk Public Registry - COSEWIC Assessment and Status Report on the Bull Trout Salvelinus confluentus in Canada - 2012 (Table 1. Summary of 31 adult Bull Trout abundance datasets compiled from 22 core areas from 12 of 26 Bull Trout Ecological Drainage Units (EDUs) identified in British Columbia.)

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> COSEWIC Assessment and Status Report on the Bull Trout Salvelinus confluentus in Canada - 2012 (Table 1. Summary of 31 adult Bull Trout abundance datasets compiled from 22 core areas from 12 of 26 Bull Trout Ecological Drainage Units (EDUs) identified in British Columbia.)

Table 1. Summary of 31 adult Bull Trout abundance datasets compiled from 22 core areas from 12 of 26 Bull Trout Ecological Drainage Units (EDUs) identified in British Columbia. Trend data (simple regression analysis) available for 23 of these datasets covering 11 Bull Trout EDUs (datasets with more than five years of data collected using a consistent methodology). Modified from Hagen and Decker (2011).
Core area	Stream or lake	No. years data	Estimated abundance	Short-term trend
DU1[Genetic Lineage 1: Southcoast BC populations]
EDU Lower Fraser
Lillooet	Phelix	5	27-185	no
EDU Puget Sound
Skagit	Skagit	5	159-1650	positive (P=0.03)
EDU South Coastal
Squamish	Cheakamus	13	75-316	multiple trends
DU2 [Genetic Lineage 2: Western Arctic populations]
EDU Upper Peace
Finlay Reach	Davis	9	37-85	no
Parsnip Reach	Misinchinka	5	35-58	no
	Scott	2	58-106	Unknown
Peace Reach	Point	5	5-39	no
Thutade	Thutade Lake	16	122-288	positive (P=0.01)
EDU Lower Peace
Halfway-Peace	Chowade	6	55-864	positive (P=0.01)
	Needham	3	52-103	Unknown
	Cypress	3	18-120	Unknown
Lower Murray	Wolverine	3	25-67	Unknown
DU5 [Genetic Lineage 2: Pacific populations]
EDU Columbia-Arrow
Pend d'Oreille	Salmo	12	38-109	no
ALR all	Arrow Lakes	23	0.02-0.13 CPUE (fish/hr)	no
ALR southern	Arrow tribs	2	198-260	Unknown
ALR northern	Arrow tribs	2	586-755	Unknown
EDU Lower Kootenay
Kootenay Lake	Irishman	8	13-32	no
	Duncan	9	202-725	no
	Kaslo	5	716-1219	no
	Crawford	3	336-486	Unknown
	Kootenay Lake	34	0.02-0.15 CPUE (fish/hr)	multiple trends
EDU Upper Kootenay
Elk	Line	19	28-184	positive (P=0.001)
Upper Kootenay R	Skookumchuck	14	64-189	no
	White	10	93-193	no
Koocanusa	Wigwam	17	105-2298	multiple trends
EDU Upper Skeena
Upper Sustut	Sustut	19	3-70	negative (P=0.04)
Mid-Skeena	Kitwanga	7	31-495	no
Lower Sustut/ Skeena	Damshilgwet	11	22-302	positive (P=0.01)
EDU Upper Fraser
Upper Fraser	Goat	5	55-163	no
EDU Middle Fraser
Chilko	Long Valley	2	433-693	Unknown
EDU Thompson
Upper Shuswap	Sugar Lake	4	0.01-0.26 CPUE (fish/hr)	*positive(P=0.02)

* only four years of data, but included in trend analysis as data spanned a 20-year time period.