Table 4. Pearson correlation coefficients relating the length of tracked particles to the length of sucker larvae in larval catches from the Williamson River Delta and Upper Klamath Lake, Oregon, 2009. 


[Dispersal scenario A: passive dispersal; Dispersal scenario B: active dispersal by random swimming; Dispersal scenario C: active dispersal by random swimming with nighttime-only drift; Dispersal scenario D: active dispersal by swimming downstream with water currents greater than 5 centimeters per second at night with nighttime-only drift swimming otherwise. Boldface type indicates that the correlation is significant (p <0.05). Abbreviations: N, number of paired samples in the correlation; mm, millimeter; <, less than; ≤; less than or equal to]


Subset of data used in correlation	Dispersal scenario
	A					B					C					D
	Pearson R	p	N	Bias (mm)		Pearson R	p	N	Bias (mm)		Pearson R	p	N	Bias (mm)		Pearson R	p	N	Bias (mm)
All data	0.46	0.000	122	-1.0		0.36	0.000	129	-1.029		0.30	0.001	122	-0.9		0.21	0.017	132	-1.0
By gear type
All fish caught in larval trawls	0.48	0.027	21	-0.6		0.49	0.018	23	-0.6		0.33	0.160	20	-0.3		0.15	0.472	24	-0.5
All fish caught in pop nets	0.36	0.001	79	-1.3		0.30	0.007	83	-1.4		0.34	0.002	80	-1.3		0.15	0.182	86	-1.3
All fish caught in plankton nets	0.76	0.000	22	-0.3		0.46	0.027	23	-0.3		0.30	0.170	22	-0.0		0.49	0.022	22	0.1
By species
Particles inserted before June 2	0.45	0.000	70	-0.3		0.44	0.000	77	-0.4		0.33	0.001	90	0.1		0.29	0.005	90	0.1
Particles inserted after June 2	0.53	0.000	79	-1.3		0.32	0.003	86	-1.2		0.52	0.000	78	-1.4		0.23	0.031	86	-1.3
By size class
Fish length <13 mm	0.31	0.155	22	0.5		0.27	0.233	22	0.6		0.26	0.238	23	0.8		0.30	0.160	24	0.8
13 ≤ fish length <16 mm	0.39	0.001	74	-0.9		0.27	0.015	79	-0.7		0.27	0.019	75	-0.7		0.07	0.537	81	-0.7
16 ≤ fish length ≤ 19 mm	0.23	0.262	26	-2.7		0.29	0.128	28	-3.1		0.14	0.505	24	-3.1		-0.09	0.641	27	-3.2

First posted January 31, 2014