NOAA/NMFS/NWFSC TM-31: Data Collection -- Groundfish: Table 3.11

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

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

Table 3.11
Biological sampling program in Oregon, 1992.^a


			Priority level^d
	Sampling
Species	rate^b	Subsample^c	Astoria	Newport	Coos Bay

Widow rockfish	2 per 100 mt	2 25-lb baskets	1	1	1
Thornyhead^e	2 per 100 mt	2 25-lb baskets	1	1	1
Lingcod	2 per month	4 50-1b baskets	1	1	1
Dover sole	1 per 100 mt	2 25-lb baskets	1		1
Yellowtail rockfish	2 per 100 mt	2 50-1b baskets	1	1	2
Canary rockfish	2 per 100 mt	4 50-1b baskets	2	2	2
Pacific grenadier	1 per month	4 50-1b baskets			2
Petrale sole	2 per 100 mt	2 25-lb baskets	3		3
English sole	2 per 100 mt	2 25-lb baskets	3
Arrowtooth flounder	1 per month	100 fish		3
Darkblotched rockfish^e	2 per 100 mt	100 fish		3
Pacific hake^f

^aIn general, for each fish in the sample, the port biologists are instructed to measure and record its length and sex (sometimes the reproductive stage), and to collect physical structures for age determination (fin rays from lingcod, interopercles from English sole, and otloliths from all other species).

^bSampling rates denote the number of boat trip samples to select per metric tons of the landed market category or month, depending on the species. Each species was sampled from its own market category, with the exeption of canary rockfish, which were sampled from the "large rockfish" market category, and darkblotched rockfish, which were sampled from the "small rockfish" market category.

^cSubsamples are denoted as the number of baskets (25 or 50 lb in size) selected from the market category contained within the boat trip sample.

^dLevels 1 to 3 denote highest to lowest priority. A missing value denotes no sampling is conducted.

^eOnly length information was collected for these species.

^fThe sampling program for Pacific hake is administered by the National Marine Fisheries Service (Alaska Fisheries Science Center). The target sampling rate was to collect at least 750 otolith samples, 250 fish to be sampled from Astoria and 500 fish from Newport. Subsamples consisted of 20 fish (otolith samples) selected from roughly one boat trip sample per week (of the fishing season) at these ports. Additionally, length frequency data (3 50-lb baskets of fish) were collected from approximately one boat trip sample per week at the two ports.