U.S. Dept Commerce/NOAA/NMFS/NWFSC/Publications

NOAA-NMFS-NWFSC TM-31: Data Collection -- Groundfish (cont):

Table 3.9
Number of biological samples collected in Oregon, 1981-1992.a


Yearb
Species19818283848586878889909192

Rockfish
Pacific ocean perch20202922122423195168
Widow49364462848310372118121141139
Yellowtail10163122617372842363970
Canary92017192814352323222238
Boccaccio1
Silvergrey1
Darkblotched212
Shortbelly1
Black48
Blue2
Yellowmouth72
Redstripe15
Shortspine thornyhead67255555
Longspine thornyhead384447
Arrowtooth flounder71113
Dover sole363535384730395064649187
English sole393818142218181418211411
Petrale sole4121414181716131719
Sablefish6932977772610066110
Grenadier210
Hagfish8
Lingcod40

aFigures presented in the table denote the total number of boat trip samples selected for each species. Prior to 1991, a subsample (basket of fish) selected from a market category of a boat trip sample was composed of a fixed number of fish. From 1991 through the present, a subsample has consisted of a fixed weight of fish, with the exception of widow rockfish, for which fixed-weight subsamples have been selected since 1989.

bA year with a missing value denotes no biological samples were collected for the given species.