Table 5. Discard rates from trips with logbooks versus trips with observers.
These tabulations do not include trips with tows that were unobserved or for which logbook discards were missing.
| Species
|
No. Trips
|
Landings*
|
Logbook Discards*
|
Discard Rate
|
St.Dev.
|
C.V.
|
| Complete logbook trips
|
| All Fish
|
416
|
6997.02
|
2551.50
|
0.2672
|
0.1914
|
0.7162
|
| Dover
|
385
|
1468.35
|
98.49
|
0.0629
|
0.1583
|
2.5170
|
| Sablefish
|
383
|
562.79
|
282.96
|
0.3346
|
0.3271
|
0.9774
|
| Longspine
|
284
|
714.44
|
51.51
|
0.0673
|
0.1016
|
1.5091
|
| Shortspine
|
327
|
201.55
|
55.24
|
0.2151
|
0.2962
|
1.3770
|
| English
|
297
|
156.66
|
12.63
|
0.0746
|
0.0953
|
1.2769
|
| Petrale
|
320
|
349.86
|
0.92
|
0.0026
|
0.0206
|
7.9077
|
| Sanddab
|
48
|
53.13
|
45.07
|
0.4589
|
0.4528
|
0.9867
|
| Lingcod
|
274
|
174.38
|
19.02
|
0.0983
|
0.2417
|
2.4589
|
| Pac. Hake
|
303
|
2.33
|
657.29
|
0.9965
|
0.0503
|
0.0505
|
| Sebastes
|
368
|
905.87
|
318.73
|
0.2603
|
0.2855
|
1.0967
|
| Canary
|
202
|
125.57
|
16.05
|
0.1133
|
0.2489
|
2.1970
|
| POP
|
85
|
109.32
|
7.58
|
0.0648
|
0.2133
|
3.2923
|
| Widow
|
186
|
979.45
|
39.26
|
0.0385
|
0.1081
|
2.8088
|
| Yellowtail
|
193
|
396.34
|
100.87
|
0.2029
|
0.3467
|
1.7086
|
|
|
| Fully observed trips
|
| All Fish
|
205
|
4091.86
|
2568.50
|
0.3856
|
0.1841
|
0.4775
|
| Dover
|
190
|
740.85
|
77.16
|
0.0943
|
0.2131
|
2.2593
|
| Sablefish
|
192
|
283.28
|
203.25
|
0.4178
|
0.3183
|
0.7619
|
| Longspine
|
139
|
333.09
|
47.07
|
0.1238
|
0.1535
|
1.2393
|
| Shortspine
|
180
|
98.60
|
43.40
|
0.3056
|
0.3327
|
1.0886
|
| English
|
152
|
69.64
|
6.50
|
0.0853
|
0.1240
|
1.4530
|
| Petrale
|
167
|
182.81
|
3.09
|
0.0166
|
0.0568
|
3.4163
|
| Sanddab
|
68
|
22.25
|
21.06
|
0.4863
|
0.4483
|
0.9219
|
| Lingcod
|
154
|
162.32
|
21.34
|
0.1162
|
0.2640
|
2.2716
|
| Pac. Hake
|
185
|
0.00
|
399.13
|
1.0000
|
0.0000
|
0.0000
|
| Sebastes
|
193
|
871.80
|
325.22
|
0.2717
|
0.2621
|
0.9645
|
| Canary
|
111
|
95.68
|
14.33
|
0.1303
|
0.2787
|
2.1392
|
| POP
|
93
|
112.41
|
12.03
|
0.0967
|
0.2030
|
2.0998
|
| Widow
|
111
|
416.16
|
9.68
|
0.0227
|
0.1389
|
6.1097
|
| Yellowtail
|
120
|
447.39
|
126.29
|
0.2201
|
0.3428
|
1.5570
|