Table 7. 2006 gray seal bycatch estimate in the NESG
2006
Winter (Jan-May)
Observed
Takes
Bycatch Rate
(Take/mton)
Estimated
Takes
CV (%)
95% CI
Port Group-Area Strata
Northern Maine
0
0.000
0
Southern Maine
0
0.000
0
New Hampshire
0
0.000
0
North of
Boston
0
0.000
0
South of Boston
0
0.000
0
South Of Cape Coda
1b
0.014
20
107%
1-68
East Of Cape Cod
0
0.000
0
Offshore
0
0.000
0
Closure Strata
Offshore Closure
0
0.000
0
Cashes Ledge Closure
0
0.000
0
Midcoast Closure
0
0.000
0
Mass Bay Closure
0
0.000
0
Cape Cod Bay Closure
0
0.000
0
South Cape Closured
1a
0.034c
24
83%
1-62
Great S. Channel Closure
0
0.000
0
Subtotal
2
44
66%
2-105
Summer (Jun-Aug)
Observed Takes
Bycatch Rate (Take/mton)
Estimated Takes
CV (%)
CI
Port Group-Area Strata
Northern Maine
0
0.000
0
Southern Maine
0
0.000
0
New Hampshire
2b
0.185
74
104%
2-261
North of
Boston
0
0.000
0
South of Boston
0
0.000
0
South Of Cape Codd
0
0.000
0
East Of Cape Cod
0
0.000
0
Offshore
0
0.000
0
Closure Strata
Northeast Closure
0
0.000
0
Great S. Channel Closure
0
0.000
0
Subtotal
2
74
104%
2-261
Fall (Sep-Dec)
Observed Takes
Bycatch Rate (Take/mton)
Estimated Takes
CV (%)
95% CI
Port Group-Area Strata
Northern Maine
0
0.000
0
Southern Maine
1b
0.131
2
130%
1-7
New Hampshire
0
0.000
0
North of
Boston
0
0.000
0
South of Boston
0
0.000
0
South Of Cape Coda
2b
0.077d
74
95%
2-239
East Of Cape Cod
1b
0.029
36
98%
1-120
Offshore
0
0.000
0
Closure Strata
Northeast Closure
0
0.000
0
Offshore Closure
0
0.000
0
Midcoast Closure
1b
0.025d
18
112%
1-69
Mass Bay Closure
0
0.000
0
South Cape Closurea
0
0.000
0
Subtotal
5
130
62%
5-303
2006 Total
9
248
47%
63-488
a Totals for South of Cape Cod port group and closure stratum includes effort from Connecticut and
New York trips that fished east of 72º30’W.
b Observed take from haul not equipped with pingers.
c Observed take from haul equipped with pingers.
d A weighted bycatch rate (observed hauls with and without pingers were used to calculate a
weighted bycatch rate)