Data Availability
Detailed data collected by groundfish observers is confidential. As a result, the information in the maps, data files, and shapes files of this web site have been summarized. To ensure confidentiality, we also filtered out data when it came from fewer than 3 vessels. The tables below include data from 1993 through 2005. |
Table 1. Number of sampled hauls per year and the percentage available to the public.
Table 2. Weight of the sampled hauls/sets and the percentage available to the public.
Table 3. Number of mapped cells per year and the percentage available to the public.
Table 1 .
Number of sampled hauls per year and the percentage available to the public.
Gear |
Region |
Avg number of hauls/set per year |
Range of the number of hauls/sets per year |
Range of % of hauls/sets per year available to public |
Non-Pelagic | Aleutian Islands |
1,963 |
1,504 - 2,538 |
69% - 85% |
Non-Pelagic | Bering Sea |
9,926 |
6,979 - 13,934 |
81% - 90% |
Non-Pelagic |
Gulf of Alaska |
2,652 |
1,582 - 3,872 |
55% - 70% |
Non-Pelagic | All Regions |
14,541 |
10,934 - 18,550 |
78% - 85% |
| |
|
| |
Pelagic | Aleutian Islands |
311 |
8 - 747 |
0% - 90% |
Pelagic |
Bering Sea |
12,526 |
9,492 - 15,741 |
92% - 95% |
Pelagic |
Gulf of Alaska |
741 |
444 - 1,225 |
57% - 77% |
Pelagic |
All Regions |
13,500 |
10,553 - 16,185 |
90% - 93% |
| |
|
| |
Pot |
Aleutian Islands |
341 |
6 - 885 |
0% - 42% |
Pot |
Bering Sea |
1,337 |
622 - 2,994 |
13% - 80% |
Pot |
Gulf of Alaska |
476 |
242 - 1,007 |
0% - 21% |
Pot |
All Regions |
2,125 |
1,063 - 4,335 |
10% - 57% |
| |
|
| |
Longline | Aleutian Islands |
1,717 |
675 - 3,052 |
14% - 67% |
Longline | Bering Sea |
8,514 |
5,332 - 12,935 |
62% - 74% |
Longline | Gulf of Alaska |
1,624 |
965 - 2,392 |
4% - 52% |
Longline | All Regions |
11,857 |
9,511 - 15,499 |
55% - 67% |
Table 2 .
Weight of the sampled hauls/sets and the percentage available to the public.
Gear | Region | Weight of the sampled hauls/sets averaged by year | Range of weights of sampled hauls/sets per year |
Range of weight per year available to public |
Non-Pelagic |
Aleutian Islands |
77,729 |
67,784 - 100,508 |
71% - 90% |
Non-Pelagic |
Bering Sea |
203,509 |
116,204 - 353,508 |
80% - 92% |
Non-Pelagic |
Gulf of Alaska |
29,363 |
22,607 - 37,430 |
44% - 72% |
Non-Pelagic |
All Regions |
310,600 |
215,691 - 454,516 |
78% - 88% |
| |
| |
|
Pelagic | Aleutian Islands |
22,532 |
84 - 53,017 |
0% - 91% |
Pelagic |
Bering Sea |
937,845 |
700,699 - 1,283,916 |
93% - 95% |
Pelagic |
Gulf of Alaska |
25,577 |
12,221 - 44,323 |
56% - 80% |
Pelagic |
All Regions |
980,323 |
748,513 - 1,298,832 |
92% - 94% |
| |
| |
|
Pot |
Aleutian Islands |
503 |
4 - 1,587 |
0% - 44% |
Pot |
Bering Sea |
4,580 |
1,230 - 7,620 |
27% -78% |
Pot |
Gulf of Alaska |
1,208 |
537 - 2,012 |
0% - 21% |
Pot |
All Regions |
6,249 |
2,206 - 10,140 |
19% -63% |
| |
| |
|
Longline | Aleutian Islands |
8,546 |
2,897 - 16,987 |
13% - 71% |
Longline | Bering Sea |
81,597 |
52,785 - 101,742 |
59% - 74% |
Longline | Gulf of Alaska |
7,978 |
5,681 - 10,916 |
3% - 50% |
Longline | All Regions |
98,140 |
80,199 - 116,174 |
59% - 69% |
Table 3 . Number of mapped cells per year and the percentage available to the public.
Gear |
Region |
Avg number of cells with sampled hauls/sets per year |
Range of the number of cells with sample hauls/sets per year |
Range of % of cells available to public per year |
Non-Pelagic |
Aleutian Islands |
201 |
170 - 225 |
26% - 38% |
Non-Pelagic |
Bering Sea |
1,244 |
1,023 - 1,660 |
39% - 48% |
Non-Pelagic |
Gulf of Alaska |
558 |
356 - 761 |
24% - 32% |
Non-Pelagic |
All Regions |
2,002 |
1,669 - 2,576 |
36% - 40% |
|
|
|
|
|
Pelagic |
Aleutian Islands |
67 |
4 - 223 |
0% - 47% |
Pelagic |
Bering Sea |
1,113 |
821 - 1,541 |
53% - 70% |
Pelagic |
Gulf of Alaska |
172 |
97 - 231 |
20% - 39% |
Pelagic |
All Regions |
1,334 |
1,089 - 1,638 |
48% - 67% |
|
|
|
|
|
Pot |
Aleutian Islands |
69 |
5 - 175 |
0% - 12% |
Pot |
Bering Sea |
167 |
62 - 320 |
8% - 29% |
Pot |
Gulf of Alaska |
113 |
58 - 185 |
0% - 6% |
Pot |
All Regions |
342 |
140 - 565 |
4% - 15% |
|
|
|
|
|
Longline |
Aleutian Islands |
335 |
234 - 537 |
6% - 31% |
Longline |
Bering Sea |
1,542 |
935 - 2,079 |
31% - 41% |
Longline |
Gulf of Alaska |
444 |
277 - 541 |
1% - 23% |
Longline |
All Regions |
2,321 |
1,824 - 2,857 |
26% - 34% |
|