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- > COSEWIC Assessment and Status Report on the Atlantic Wolffish Anarhichas lupus in Canada - 2012 (Table 8. Trends in Atlantic Wolffish abundance indices based on research trawl survey data.)
| Rate of change | Natural log regression parameters | |||||||
|---|---|---|---|---|---|---|---|---|
| Survey | NAFO divisions | Years | Total/mature | % | Number of Years | R2 | P-values | Slope |
| Newfoundland & Labrador Fall Survey | 2J3KL S. Labrador Shelf |
1981-1994 | Total | -91 | 13 | 0.88 | 0.001 | -0.18 |
| Newfoundland & Labrador Fall Survey | 2J3KL S. Labrador Shelf |
1981-1994 | Mature | -96 | 13 | 0.93 | <0.001 | -0.25 |
| Newfoundland & Labrador Fall Survey | 2J3KL S. Labrador Shelf |
1995-2009 | Total | 150 | 14 | 0.50 | <0.003 | 0.07 |
| Newfoundland & Labrador Fall Survey | 2J3KL S. Labrador Shelf |
1995-2009 | Mature | 294 | 14 | 0.38 | 0.018 | 0.10 |
| Newfoundland & Labrador Spring Survey | 3LNO Grand Banks |
1971-1982 | Total | 219 | 11 | 0.36 | 0.040 | 0.11 |
| Newfoundland & Labrador Spring Survey | 3LNO Grand Banks |
1984-1995 | Total | -44 | 11 | 0.12 | 0.278 | -0.05 |
| Newfoundland & Labrador Spring Survey | 3LNO Grand Banks |
1984-1995 | Mature | -70 | 11 | 0.40 | 0.027 | -0.10 |
| Newfoundland & Labrador Spring Survey | 3LNO Grand Banks |
1996-2010 | Total | 124 | 14 | 0.33 | 0.026 | 0.05 |
| Newfoundland & Labrador Spring Survey | 3LNO Grand Banks |
1996-2010 | Mature | 247 | 14 | 0.53 | 0.003 | 0.09 |
| Maritimes Summer Survey | 4VWX Scotian Shelf |
1970-1981 | Total | -0.2 | 11 | 5X106 | 0.994 | -0.0002 |
| Maritimes Summer Survey | 4VWX Scotian Shelf |
1970-1981 | Mature | 79 | 11 | 0.21 | 0.132 | 0.05 |
| Maritimes Summer Survey | 4VWX Scotian Shelf |
1982-2010 | Total | -27 | 298 | 0.05 | 0.258 | -0.01 |
| Maritimes Summer Survey | 4VWX Scotian Shelf |
1982-2010 | Mature | -96 | 28 | 0.61 | <0.001 | -0.11 |
| Newfoundland & Labrador Spring Survey | 3Ps S. Newfoundland |
1971-1982 | Total | -36 | 10 | 0.11 | 0.313 | -0.04 |
| Newfoundland & Labrador Spring Survey | 3Ps S. Newfoundland |
1984-1995 | Total | -77 | 11 | 0.62 | 0.002 | -0.13 |
| Newfoundland & Labrador Spring Survey | 3Ps S. Newfoundland |
1984-1995 | Mature | -87 | 11 | 0.73 | 0.000 | -0.19 |
| Newfoundland & Labrador Spring Survey | 3Ps S. Newfoundland |
1996-2010 | Total | 92 | 14 | 0.14 | 0.195 | 0.47 |
| Newfoundland & Labrador Spring Survey | 3Ps S. Newfoundland |
1996-2010 | Mature | 226 | 14 | 0.30 | 0.042 | 0.08 |
| Southern Gulf Survey | 4T S. Gulf |
1971-1985 | Total | 65 | 14 | 0.02 | 0.641 | 0.11 |
| Southern Gulf Survey | 4T S. Gulf |
1986-2010 | Total | -60 | 24 | 0.18 | 0.045 | -0.04 |
| Northern Gulf Summer Survey | 4RST N. Gulf |
1990-2009 | Total | 56 | 19 | 0.07 | 0.264 | 0.02 |
| Northern Gulf Summer Survey | 4RST N. Gulf |
1990-2009 | Mature | 150 | 16 | 0.10 | 0.216 | 0.05 |