A 488,000 fish 196,000 fish
r2 0.88
Approximate Equilibrium Overfishing Thresholds
______________________________________________________________________________________
Parameter Mean 95% Confidence Limits
----------------------------------------------------------------------------------------------------------------------------------
avFmsy 0.39 0.23 - 0.55
avFcoll 1.41 1.32 - 1.48
avBmsy 470,000 fish 462,000 - 494,000 fish
Table 8. Striped bass consumption rate (Mp), total fishing mortality (FT), annual Fmsy, annual run size at MSY (Nmsy*1000), shad consumed annually by striped bass (Dt), ratio of fishing mortality (FRZ) to predation (Mp), annual riverine landings (SHADTOTR*1000), ratio of landings to predation loss (FRCC) and sum of fishing + predation mortality (RIVMORT).
YEAR
|
Mp
|
FT
|
FMSY
|
NMSY
|
Dt
|
FRZ
|
SHADTOTR
|
FRCC
|
RIVMORT
|
1981
|
0.0523
|
0.2806
|
0.5377
|
497.61
|
43.52
|
0.7953
|
167
|
0.7933
|
0.3328
|
1982
|
0.0537
|
0.2330
|
0.5363
|
496.19
|
47.36
|
0.7267
|
125
|
0.7252
|
0.2868
|
1983
|
0.0423
|
0.1692
|
0.5477
|
490.19
|
63.69
|
0.7608
|
198
|
0.7566
|
0.2114
|
1984
|
0.0546
|
0.1886
|
0.5354
|
489.85
|
64.62
|
0.7042
|
150
|
0.6989
|
0.2432
|
1985
|
0.0661
|
0.2915
|
0.5239
|
497.22
|
44.57
|
0.7260
|
117
|
0.7242
|
0.3576
|
1986
|
0.0788
|
0.4411
|
0.5112
|
494.32
|
52.45
|
0.8097
|
213
|
0.8024
|
0.5199
|
1987
|
0.0572
|
0.4696
|
0.5328
|
502.24
|
30.90
|
0.8436
|
156
|
0.8347
|
0.5268
|
1988
|
0.1256
|
0.3478
|
0.4645
|
484.78
|
78.39
|
0.6088
|
115
|
0.5947
|
0.4734
|
1989
|
0.1345
|
0.2143
|
0.4555
|
465.01
|
132.18
|
0.4951
|
121
|
0.4779
|
0.3488
|
1990
|
0.0820
|
0.2095
|
0.5080
|
489.37
|
65.90
|
0.5667
|
83
|
0.5574
|
0.2915
|
1991
|
0.0577
|
0.1858
|
0.5323
|
488.54
|
68.17
|
0.6715
|
133
|
0.6612
|
0.2435
|
1992
|
0.0488
|
0.1428
|
0.5412
|
484.60
|
78.89
|
0.6945
|
171
|
0.6843
|
0.1917
|
1993
|
0.1001
|
0.2228
|
0.4899
|
485.94
|
75.25
|
0.5862
|
99
|
0.5681
|
0.3228
|
1994
|
0.1674
|
0.3692
|
0.4226
|
493.90
|
53.58
|
0.6168
|
77
|
0.5897
|
0.5366
|
1995
|
0.1385
|
0.2825
|
0.4516
|
498.15
|
42.03
|
0.4691
|
35
|
0.4544
|
0.4209
|
1996
|
0.2047
|
0.1355
|
0.3853
|
459.90
|
146.08
|
0.2084
|
35
|
0.1933
|
0.3402
|
1997
|
0.1967
|
0.1507
|
0.3933
|
463.51
|
136.26
|
0.2320
|
38
|
0.2181
|
0.3474
|
1998
|
0.1595
|
0.2777
|
0.4305
|
474.25
|
107.03
|
0.2792
|
39
|
0.2671
|
0.4372
|
1999
|
0.1777
|
0.1669
|
0.4123
|
480.78
|
89.28
|
0.1752
|
17.6
|
0.1647
|
0.3447
|
2000
|
0.3329
|
0.1785
|
0.2571
|
456.68
|
154.82
|
0.2211
|
38.5
|
0.1992
|
0.5113
|
2001
|
0.3413
|
0.1057
|
0.2487
|
401.30
|
305.45
|
0.0853
|
24.2
|
0.0734
|
0.4470
|
2002
|
0.4578
|
0.1470
|
0.1322
|
375.93
|
374.46
|
0.1320
|
46.2
|
0.1098
|
0.6048
|
2003
|
0.5018
|
0.1458
|
0.0882
|
396.92
|
317.39
|
0.1480
|
44
|
0.1218
|
0.6476
|
2004
|
0.5703
|
0.1542
|
0.0197
|
421.18
|
251.39
|
0.1206
|
26.4
|
0.0950
|
0.7244
|
2005
|
0.5809
|
0.1928
|
0.0091
|
454.53
|
160.69
|
0.1632
|
24.2
|
0.1309
|
0.7737
|
Appendix 1. Annual Atlantic herring (ATH) landings (pounds*1000), pounds of catch subsampled for bycatch, number of shad in subsampled catch, fraction of shad in subsample, coast-wide shad discards (ATH*fraction of shad)/4.5lbs(ave weight per shad) (N*1000) and shad bycatch from the Connecticut River (10% of coast-wide discards) (N*1000).
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