Juvenile salmonid migratory behavior at the mouth of the Columbia River and within the plume

Table 4 Number, fork length (FL), and tag burden of released fish

Species/stock	Release location	Release (rkm)	Release dates	N	Fork length (FL) (mm)			Tag burden (%)
Species/stock	Release location	Release (rkm)	Release dates	N	Minimum	Maximum	Mean	Minimum	Maximum	Mean
CH1	Roosevelt	393	28 April to 1 June 2010	2,287	103	225	156	0.4	5.8	1.7
	The Dalles Dam Tailrace	307	28 April to 1 June 2010	796	99	221	154	0.4	6.6	1.8
	Hood River	275	28 April to 1 June 2010	797	104	227	154	0.5	5.2	1.8
	Bonneville Dam (barged)	224	30 April to 14 May 2010	1,392	95	177	135	0.9	6.6	2.5
			Total	5,272	95	227	150	0.4	6.6	2.0
STH	Roosevelt	393	28 April to 1 June 2010	2,288	142	260	213	0.3	2.4	0.7
	The Dalles Dam Tailrace	307	28 April to 1 June 2010	799	148	260	212	0.3	2.1	0.8
	Hood River	275	28 April to 1 June 2010	798	140	260	209	0.3	2.4	0.8
			Total	3,885	140	260	212	0.3	2.4	0.7
CH0	Roosevelt	393	13 June to 17 July 2010	2,849	95	152	111	1.4	7.0	4.3
	The Dalles Dam Tailrace	307	13 June to 17 July 2010	800	95	138	111	1.9	7.2	4.3
	Hood River	275	13 June to 17 July 2010	800	95	148	110	1.7	7.0	4.4
			Total	4,449	95	152	111	1.4	7.2	4.3

Yearling Chinook salmon, steelhead, and subyearling Chinook salmon were released at sites located between rkm 224 and 393 on the Columbia River. CH1, yearling Chinook salmon; STH, steelhead; CH0, subyearling Chinook salmon.

ISSN: 2050-3385