Rock Island Spring Chinook Data Table

|Tools & Models| |CRiSP Models| |Travel Time|

Passive integrated transponger tags are used to monitor individual fish. The tag, 12 mm long, is inserted in the fish's body cavity and contains a microchip programmed with individual fish ID codes. The system yields information about passage times of individuals at pittag observation sites.

Release cohorts were formed by combining releases from up to 5 consecutive days to achieve observed sample sizes of at least 20 individuals. 138 cohorts were constructed from 254 releases over 8 years.

[1989] [1990] [1991] [1992] [1993] [1994] [1995] [1996] [Model Results]
Average Release Date Average Travel Time from RIS to MCN
(number observed)
1989
111.5 22.3 (33)
112.4 20.9 (36)
113.4 18.6 (35)
114.0 12.8 (31)
116.0 16.6 (47)
117.4 13.5 (36)
118.4 15.2 (37)
119.8 11.6 (50)
122.1 12.4 (52)
124.0 12.5 (57)
125.6 12.2 (39)
126.4 12.1 (44)
127.7 12.1 (51)
129.5 10.5 (38)
131.1 11.4 (71)
132.5 10.6 (35)
133.9 9.7 (56)
136.1 9.4 (58)
137.9 9.2 (51)
1990
112.0 18.6 (48)
114.0 15.3 (56)
116.1 13.8 (55)
118.0 15.4 (57)
120.0 13.0 (54)
121.5 11.0 (32)
122.5 12.3 (35)
123.5 10.0 (33)
124.6 11.3 (36)
126.6 10.5 (59)
128.6 10.0 (37)
130.1 9.8 (31)
132.1 9.6 (35)
134.6 9.9 (35)
136.9 9.8 (33)
1991
109.5 24.7 (31)
110.8 17.9 (37)
114.0 20.2 (34)
116.5 17.1 (32)
117.9 15.4 (45)
119.6 14.7 (32)
120.5 13.2 (31)
122.0 12.7 (44)
123.5 13.8 (38)
125.0 13.3 (44)
127.1 12.5 (47)
129.1 12.4 (49)
131.0 10.2 (41)
133.7 10.0 (45)
136.5 10.4 (41)
139.0 11.3 (38)
141.0 11.8 (32)
142.8 12.7 (34)
1992
113.5 16.9 (38)
114.5 18.4 (45)
115.5 19.3 (43)
116.4 15.6 (36)
117.4 15.3 (42)
118.4 13.7 (41)
119.5 14.2 (41)
120.5 14.2 (38)
121.5 14.0 (46)
122.5 13.3 (40)
123.9 14.6 (49)
126.1 13.1 (60)
127.5 12.5 (42)
128.5 11.8 (42)
129.5 12.1 (34)
130.4 12.0 (42)
132.0 12.7 (51)
133.5 11.2 (33)
134.5 11.8 (32)
135.6 9.7 (43)
136.6 11.1 (33)
137.5 9.5 (37)
139.0 13.4 (58)
140.4 21.8 (32)
142.0 25.0 (43)
144.0 29.0 (34)
147.7 25.8 (43)
149.9 23.7 (29)
151.9 22.8 (31)
1993
117.5 18.3 (39)
119.0 18.2 (32)
122.1 18.5 (29)
127.4 14.7 (31)
130.7 14.4 (42)
133.3 13.1 (32)
135.1 9.7 (30)
137.2 13.6 (36)
139.1 12.2 (39)
141.1 19.6 (48)
142.9 25.3 (40)
145.1 25.6 (30)
147.1 25.3 (33)
1994
112.2 15.1 (68)
113.9 14.9 (42)
115.7 13.1 (36)
117.2 14.3 (52)
118.6 14.3 (34)
119.6 11.9 (33)
120.5 17.1 (38)
122.2 19.3 (41)
123.6 20.9 (31)
124.9 18.2 (31)
127.0 18.0 (37)
129.0 15.3 (51)
131.2 14.2 (49)
133.1 15.8 (54)
135.5 13.2 (35)
138.0 13.4 (37)
140.0 15.5 (35)
141.4 14.4 (30)
143.0 17.6 (44)
145.1 20.4 (55)
147.3 18.7 (33)
1995
108.3 20.6 (54)
109.6 21.9 (31)
111.0 19.1 (33)
113.5 21.1 (52)
116.1 17.3 (48)
118.1 16.3 (44)
122.0 15.3 (56)
124.0 14.1 (49)
127.3 11.1 (46)
129.6 11.4 (38)
132.2 12.3 (33)
135.9 9.9 (32)
138.6 13.0 (30)
143.5 8.5 (38)
146.1 9.8 (40)
1996
115.7 13.9 (44)
118.8 12.1 (40)
121.1 12.1 (52)
123.6 12.8 (75)
129.4 12.9 (63)
136.8 9.3 (50)
144.0 9.8 (43)
150.9 11.4 (26)
[1989] [1990] [1991] [1992] [1993] [1994] [1995] [1996] [Model Results]
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