Table 9.  Fork length distribution of juvenile chum sampled below Bonneville Dam, 2004.
																Bonneville Dam
					Number of chum in millimeters								Mean length	% chm		tailwater	discharge	water
Week	Date	Total		Range	30-39	40-49	50-59	60-69	70-79	80-89	90-100	> 100	CHM < 100	< 60mm	60-100mm	(ft.)*	(kcfs)*	temp. (oF)
4	20-Jan	0		-	-	-	-	-	-	-	-	-	-	-	-	12.8	136.8	35
4	23-Jan	0		-	-	-	-	-	-	-	-	-	-	-	-	12.3	128.9	35
5	27-Jan	0		-	-	-	-	-	-	-	-	-	-	-	-	15.0	150.5	35
5	30-Jan	0		-	-	-	-	-	-	-	-	-	-	-	-	17.5	171.2	38
6	3-Feb	0		-	-	-	-	-	-	-	-	-	-	-	-	15.1	154.3	38
7	10-Feb	0		-	-	-	-	-	-	-	-	-	-	-	-	12.3	132.2	38
8	17-Feb	2		38 - 39	2	-	-	-	-	-	-	-	38.5	100%	0%	11.4	130.6	38
8	20-Feb	1		39	1	-	-	-	-	-	-	-	39.0	100%	0%	15.8	149.5	38
9	24-Feb	2		40 - 42	-	2	-	-	-	-	-	-	41.0	100%	0%	14.9	149.8	38
9	27-Feb	0		-	-	-	-	-	-	-	-	-	-	-	-	13.2	150.4	38
10	1-Mar	50		38 - 49	8	42	-	-	-	-	-	-	41.6	100%	0%	12.9	141.5	39
11	8-Mar	69		35 - 44	32	37	-	-	-	-	-	-	39.4	100%	0%	11.5	123.3	40
11	11-Mar	8		39 - 49	1	7	-	-	-	-	-	-	45.0	100%	0%	12.4	144.4	40
12	15-Mar	68		35 - 47	13	55	-	-	-	-	-	-	41.8	100%	0%	12.5	136.2	42
12	18-Mar	79		38 - 54	10	68	1	-	-	-	-	-	41.8	100%	0%	14.3	153.2	43
13	23-Mar	113		35 - 47	35	78	-	-	-	-	-	-	40.7	100%	0%	17.4	147.6	44
13	27-Mar	113		35 - 52	27	84	2	-	-	-	-	-	40.9	100%	0%	13.5	157.2	45
14	29-Mar	21		35 - 42	7	14	-	-	-	-	-	-	39.9	100%	0%	14.6	161.0	46
14	1-Apr	47		35 - 46	13	34	-	-	-	-	-	-	40.8	100%	0%	14.4	161.5	46
15	5-Apr	1473		35 - 48	154	692	-	-	-	-	-	-	40.8	100%	0%	12.4	137.7	47
15	8-Apr	2205		34 - 58	234	523	9	-	-	-	-	-	40.8	100%	0%	14.6	158.5	48
16	12-Apr	339		35 - 64	33	246	23	2	-	-	-	-	43.8	99%	1%	13.9	154.9	49
16	15-Apr	103		36 - 52	14	85	4	-	-	-	-	-	43.4	100%	0%	16.4	201.3	49
17	19-Apr	133		37 - 55	18	104	11	-	-	-	-	-	43.3	100%	0%	15.7	198.1	50
17	22-Apr	17		35 - 51	6	10	1	-	-	-	-	-	41.9	100%	0%	18.5	210.8	51
18	27-Apr	12		39 - 57	3	6	3	-	-	-	-	-	43.6	100%	0%	14.5	189.3	51
19	3-May	5		42 - 52	-	4	1	-	-	-	-	-	44.8	100%	0%	14.7	191.3	53
19	6-May	1		47	-	1	-	-	-	-	-	-	44.7	100%	0%	19.2	245.7	54
20	10-May	1		49	-	1	-	-	-	-	-	-	46.8	100%	0%	16.6	228.8	55
20	13-May	2		42 - 56	-	1	1	-	-	-	-	-	46.3	100%	0%	20.4	246.3	55
							Total from April 5 thru 12 include additional fish that were not sampled.