Assessment and Management of the Georges Bank Cod - Journal of ...

SERCHUK and WIGLEY: Assessment and Management of the Georges Bank Cod Fishery
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8
7
A
8
7
6
6
Age 1 mean number/tow
5
4
3
2
5
4
3
2
1
1
0
7
62 64 66 68 70 72 74 76 78 80 82 84 86 88 90
Year-class
0
7
6
B
6
Age 2 mean number/tow
5
4
3
2
5
4
3
2
1
1
0
62 64 66 68 70 72 74 76 78 80 82 84 86 88 90
Year-class
0
Fig. 9.
(A) Relative year-class strength of Atlantic cod on Georges Bank at age 1 and (B)
at age 2 based on standardized catch per tow indices from USA autumn bottom
trawl surveys.
changes were made to the FMP management regulations
during the 1977–82 period. For Georges
Bank cod, management measures in these years
varied but included annual and quarterly fishery
catch quotas, Canadian and recreational catch allocations,
weekly and/or trip landings restrictions
(by vessel size class and gear type), fishery closures
(both total and by vessel gear/size class),
changes to the minimum mesh and minimum fish
sizes, and data reporting requirements.
The 1978 Georges Bank OY, which had been
set in April 1978 at 22 000 tons for the USA commercial
fishery, was increased to 26 000 tons in July 1978 to
allow 4 000 tons for Canada. Management on a
‘fishing year basis’ (October-September) was insti-