Table 4.
Age, length, weight, condition factor (K), gonadosomatic index (GSI), and liver somatic index (LSI) of male white sucker (Catostomus commersoni) from Jackfish Bay (JFB) and Mountain Bay (MTB), collected during pre-spawning (spring) from 1988 to 2019.
| Site | Date | Age (year) | Length (cm) | Weight (g) | GSIa | LSIb | Kc |
|---|---|---|---|---|---|---|---|
| JFB | 1988 | 9.0 ± 0.3 (100)* | 36.9 ± 0.3 (100)* | 741.4 ± 18.4 (100) | 1.44 ±0.01 (100)* | ||
| 1989 | 8.4 ± 0.4 (38)* | 36.7 ± 0.4 (38)* | 697.5 ± 34.4 (15) | 4.22 ± 0.23 (15) | 2.04 ± 0.06 (15) | 1.46 ± 0.02 (15)* | |
| 1990 | 8.7 ± 0.4 (23) | 37.6 ± 0.5 (23)* | 705.1 ± 29.1 (23)* | 4.44 ± 0.21 (23) | 1.55 ± 0.13 (23) | 1.31 ± 0.02 (23)* | |
| 1991 | 9.7 ± 0.4 (18) | 37.1 ± 0.6 (18) | 711.1 ± 33.7 (18) | 4.13 ± 0.21 (18)* | 1.56 ± 0.06 (18)* | 1.38 ± 0.01 (18)* | |
| 1992 | 10.5 ± 0.3 (51) | 37.2 ± 0.4 (52)* | 673.2 ± 24.8 (41)* | 3.89 ± 0.16 (41)* | 1.45 ± 0.11 (31) | 1.29 ± 0.02 (41)* | |
| 1993 | 36.8 ± 0.3 (85)* | 699.8 ± 17.3 (85)* | 3.94 ± 0.11 (80)* | 1.48 ± 0.03 (80)* | 1.39 ± 0.01 (85)* | ||
| 1996 | 10.1 ± 0.3 (104) | 37.7 ± 0.3 (106)* | 728.1 ± 17.8 (106)* | 4.55 ± 0.09 (105)* | 1.38 ± 0.04 (106)* | 1.33 ± 0.01 (106)* | |
| 1999 | 37.8 ± 0.7 (24) | 752.1 ± 48.7 (24) | 4.81 ± 0.40 (24) | 1.15 ± 0.06 (24)* | 1.35 ± 0.04 (24)* | ||
| 2001 | 7.9 ± 0.7 (20)* | 37.8 ± 0.7 (20)* | 788.4 ± 45.1 (20) | 4.27 ± 0.23 (20) | 1.42 ± 0.07 (20) | 1.43 ± 0.03 (20)* | |
| 2003 | 8.6 ± 1.0 (18)* | 38.8 ± 0.4 (20)* | 826.5 ± 24.5 (20)* | 4.38 ± 0.17 (20) | 1.23 ± 0.05 (20) | 1.41 ± 0.01 (20)* | |
| 2006 | 9.9 ± 0.5 (50) | 37.9 ± 0.5 (50)* | 784.2 ± 35.2 (50) | 4.71 ± 0.55 (50) | 1.31 ± 0.03 (49)* | 1.40 ± 0.01 (50)* | |
| 2007 | 10.6 ± 0.5 (20) | 40.4 ± 0.5 (20) | 968.0 ± 39.2 (20)* | 4.79 ± 0.16 (20) | 1.35 ± 0.06 (20)* | 1.45 ± 0.02 (20)* | |
| 2008 | 6.3 ± 0.4 (21)* | 38.6 ± 0.4 (21)* | 825.3 ± 26.2 (21)* | 4.02 ± 0.17 (21)d | 1.53 ± 0.05 (20)d | 1.43 ± 0.03 (21) | |
| 2011 | 8.0 ± 0.3 (98) | 37.6 ± 0.4 (98) | 806.1 ± 29.0 (98) | 4.46 ± 0.11 (98)d | 1.43 ± 0.03 (98)d | 1.44 ± 0.01 (98)* | |
| 2012 | 9.2 ± 0.5 (20) | 39.4 ± 0.5 (20) | 888.9 ± 32.2 (20) | 4.89 ± 0.20 (20) | 1.43 ± 0.06 (20)* | 1.44 ± 0.02 (20)* | |
| 2013 | 7.6 ± 0.5 (32) | 39.0 ± 0.6 (32) | 848.6 ± 39.1 (32)* | 5.00 ± 0.13 (32) | 1.52 ± 0.04 (32)d | 1.40 ± 0.01 (32)d | |
| 2018 | 6.3 ± 0.2 (20) | 38.2 ± 0.8 (20) | 793.6 ± 51.5 (20) | 4.06 ± 0.15 (20)* | 1.37 ± 0.05 (20) | 1.40 ± 0.02 (20)* | |
| 2019 | 7.6 ± 0.2 (20) | 39.1 ± 0.6 (20) | 786.9 ± 37.8 (20)* | 4.66 ± 0.28 (20)d | 1.49 ± 0.09 (20) | 1.30 ± 0.02 (20) | |
| MTB | 1988 | 7.7 ± 0.4 (99) | 38.2 ± 0.3 (99) | 786.4 ± 17.3 (99) | 1.39 ± 0.01 (99) | ||
| 1989 | 7.2 ± 0.4 (45) | 38.3 ± 0.5 (45) | 780.5 ± 38.4 (15) | 4.84 ± 0.25 (14) | 2.29 ± 0.25 (14) | 1.30 ± 0.02 (15) | |
| 1990 | 8.3 ± 0.4 (31) | 40.1 ± 0.4 (32) | 831.6 ± 26.9 (32) | 4.94 ± 0.14 (31) | 1.61 ± 0.10 (32) | 1.28 ± 0.02 (32) | |
| 1991 | 8.6 ± 0.8 (17) | 37.9 ± 0.3 (17) | 707.5 ± 17.5 (17) | 4.97 ± 0.14 (17) | 1.61 ± 0.06 (17) | 1.29 ± 0.02 (17) | |
| 1992 | 9.4 ± 0.7 (18) | 39.0 ± 0.3 (48) | 789.0 ± 15.8 (48) | 4.75 ± 0.11 (48) | 1.69 ± 0.04 (36) | 1.32 ± 0.01 (48) | |
| 1993 | 38.9 ± 0.4 (42) | 766.3 ± 21.2 (42) | 4.47 ± 0.15 (36) | 1.64 ± 0.06 (37) | 1.28 ± 0.01 (42) | ||
| 1996 | 12.7 ± 0.3 (102) | 41.0 ± 0.2 (102) | 922.4 ± 14.2 (102) | 5.64 ± 0.08 (102) | 1.80 ± 0.03 (102) | 1.33 ± 0.01 (102) | |
| 1999 | 39.4 ± 0.7 (20) | 816.9 ± 44.6 (20) | 5.50 ± 0.22 (20) | 1.71 ± 0.08 (20) | 1.31 ± 0.01 (20) | ||
| 2001 | 11.9 ± 1.4 (8) | 40.3 ± 0.5 (20) | 854.9 ± 34.9 (20) | 4.68 ± 0.19 (20) | 1.57 ± 0.06 (20) | 1.29 ± 0.02 (20) | |
| 2003 | 13.6 ± 1.0 (20) | 43.2 ± 0.5 (20) | 1030.8 ± 31.9 (20) | 5.30 ± 0.20 (20) | 1.60 ± 0.07 (20) | 1.28 ± 0.02 (20) | |
| 2006 | 11.0 ± 0.8 (31) | 40.0 ± 0.4 (31) | 827.5 ± 25.5 (31) | 4.83 ± 0.23 (31) | 1.61 ± 0.07 (31) | 1.28 ± 0.01 (27) | |
| 2007 | 11.7 ± 1.2 (20) | 39.7 ± 0.6 (20) | 778.6 ± 32.9 (20) | 5.31 ± 0.20 (20) | 1.63 ± 0.07 (20) | 1.24 ± 0.02 (20) | |
| 2008 | 12.3 ± 0.9 (20) | 42.0 ± 0.3 (20) | 981.7 ± 27.5 (20) | 4.88 ± 0.21 (20) | 1.70 ± 0.05 (20) | 1.32 ± 0.02 (20) | |
| 2011 | 9.0 ± 0.4 (98) | 38.3 ± 0.3 (98) | 761.3 ± 20.1 (98) | 4.90 ± 0.18 (98) | 1.94 ± 0.06 (98) | 1.33 ± 0.01 (98) | |
| 2012 | 9.5 ± 0.9 (20) | 39.6 ± 0.7 (20) | 824.1 ± 42.2 (20) | 4.92 ± 0.17 (20) | 1.69 ± 0.06 (20) | 1.31 ± 0.02 (20) | |
| 2013 | 6.3 ± 0.3 (19) | 37.5 ± 0.5 (19) | 677.4 ± 27.4 (19) | 4.55 ± 0.13 (19) | 1.81 ± 0.07 (19) | 1.28 ± 0.04 (19) | |
| 2018 | 6.1 ± 0.2 (20) | 38.0 ± 0.4 (20) | 673.4 ± 21.7 (20) | 4.76 ± 0.12 (20) | 1.49 ± 0.06 (20) | 1.22 ± 0.01 (20) | |
| 2019 | 7.5 ± 0.2 (22) | 37.9 ± 0.5 (22) | 690.0 ± 31.2 (22) | 4.74 ± 0.20 (22) | 1.47 ± 0.07 (21) | 1.25 ± 0.02 (22) |
Values are reported as mean ± SE (n). Shaded cells are either below (light grey) or above (dark grey) normal range for Mountain Bay.
*Significant difference between sites (p ≤ 0.05) within years; a GSI = 100* (gonad weight/body weight); b LSI = 100* (liver weight/body weight); c K = 100*(weight/length3); d Represents an interaction between sites; All data before 2008 published in Bowron et al. (35).