Table 3.
Age, length, weight, condition factor (K), gonadosomatic index (GSI), liver somatic index (LSI), and fecundity (total number of eggs) of female white sucker (Catostomus commersoni) from Jackfish Bay and Mountain Bay, collected during pre-spawning (spring) from 1988 to 2019.
| Site | Date | Age (year) | Length (cm) | Weight (g) | GSIa | LSIb | Kc | Fecundity |
|---|---|---|---|---|---|---|---|---|
| JFB | 1988 | 10.1 ± 0.4 (100)* | 39.8 ± 0.3 (100)* | 964.1 ± 22.3 (100)* | 10.9 ± 0.5 (34)* | 1.50 ± 0.01 (100)* | 17136 ± 1315 (27)* | |
| 1989 | 10.7 ± 0.5 (45)* | 40.7 ± 0.4 (45) | 993.4 ± 40.9 (25) | 10.6 ± 0.5 (24)* | 2.23 ± 0.07 (14)* | 1.49 ± 0.02 (25)* | 24397 ± 1440 (23) | |
| 1990 | 9.9 ± 0.5 (32)* | 40.4 ± 0.5 (33)* | 956.0 ± 34.4 (33) | 11.5 ± 0.3 (32)* | 1.76 ± 0.05 (23) | 1.43 ± 0.02 (33)* | 22909 ± 1130 (28) | |
| 1991 | 11.4 ± 0.3 (83)* | 40.3 ± 0.3 (83)* | 962.2 + 22.8 (83) | 11.5 ± 0.3 (83)* | 2.13 ± 0.06 (82)* | 1.39 ± 0.02 (83)* | 19019 ± 818 (27) | |
| 1992 | 12.4 ± 0.3 (60)* | 41.0 ± 0.3 (63)* | 954.9 ± 25.4 (49)* | 11.1 ± 0.3 (48)* | 1.82 ± 0.07 (37)* | 1.39 ± 0.02 (49)* | ||
| 1993 | 40.3 ± 0.3 (85)* | 970.0 ± 26.1 (85) | 12.0 ± 0.3 (78)d | 1.71 ± 0.04 (80)* | 1.2646 ± 0.01 (85)* | |||
| 1996 | 13.4 ± 0.3 (101) | 42.1 ± 0.3 (101)* | 1091.4 ± 22.9 (101)* | 12.9 ± 0.2 (100)* | 1.96 ± 0.03 (100)* | 1.44 ± 0.01 (101)* | 27487 ± 1152 (54) | |
| 1999 | 42.7 ± 0.7 (20)* | 1237.6 ± 67.0 (20) | 14.2 ± 0.5 (20) | 1.52 ± 0.10 (20) | 1.56 ± 0.02 (20)* | 22550 ± 2843 (20)* | ||
| 2001 | 9.6 ± 0.7 (20) | 41.6 ± 0.7 (20) | 1072.1 ± 51.1 (20) | 12.0 ± 0.4 (20) | 1.79 ± 0.05 (20) | 1.47 ± 0.01 (20)* | 24574 ± 1450 (20) | |
| 2003 | 8.9 ± 1.0 (19)* | 42.4 ± 0.7 (20)* | 1156.2 ± 60.3 (20)* | 12.5 ± 0.3 (20)* | 1.80 ± 0.06 (20)* | 1.50 ± 0.03 (20)* | 29249 ± 1872 (20) | |
| 2006 | 10.2 ± 0.4 (50)* | 41.3 ± 0.5 (50)* | 1039.7 ± 39.8 (50)* | 12.6 ± 0.3 (49) | 1.56 ± 0.03 (50)d | 1.44 ± 0.01 (50)* | 27422 ± 1946 (20) | |
| 2007 | 10.7 ± 0.6 (30)* | 43.6 ± 0.7 (30) | 1223.3 ± 45.1 (30) | 13.7 ± 0.3 (29)d | 1.86 ± 0.05 (30) | 1.47 ± 0.03 (30)* | 32398 ± 2182 (20)* | |
| 2008 | 7.3 ± 0.5 (21)* | 41.9 ± 0.6 (22)* | 1105.1 ± 50.6 (22)* | 13.0 ± 0.3 (22)* | 1.30 ± 0.02 (22) | 1.49 ± 0.02 (22) | 27455 ± 1748 (22) | |
| 2011 | 10.2 ± 0.2 (103)* | 43.8 ± 0.3 (103) | 1355.9 ± 25.1 (103)* | 14.5 ± 0.2 (103)* | 1.93 ± 0.02 (103)d | 1.59 ± 0.02 (103)d | 29589 ± 812 (99)* | |
| 2012 | 11.0 ± 0.4 (20)* | 44.1 ± 0.5 (20) | 1339.2 ± 44.1 (20) | 13.6 ± 0.3 (20)d | 1.87 ± 0.04 (20)* | 1.56 ± 0.02 (20)* | 36262 ± 1994 (18)* | |
| 2013 | 9.1 ± 0.5 (33)* | 43.5 ± 0.6 (33)* | 1275.4 ± 58.0 (33)* | 13.8 ± 0.4 (33)* | 1.83 ± 0.05 (33) | 1.51 ± 0.02 (33)d | 33879 ± 1769 (33)* | |
| 2018 | 7.8 ± 0.4 (20) | 45.3 ± 0.8 (20)* | 1421.2 ± 76.1 (20)* | 13.3 ± 0.3 (20) | 1.87 ± 0.06 (20) | 1.50 ± 0.02 (20)* | 37191 ± 2392 (20)* | |
| 2019 | 8.1 ± 0.3 (20) | 42.6 ± 0.7 (20) | 1060.6 ± 57.2 (20) | 13.7 ± 0.6 (20) | 2.03 ± 0.08 (20)* | 1.35 ± 0.03 (20) | 32720 ± 2105 (19)* | |
| MTB | 1988 | 8.4 ± 0.4 (101) | 41.9 ± 0.3 (101) | 1067.7 ± 20.4 (101) | 13.8 ± 0.3 (45) | 1.44 ± 0.01 (101) | 20556 ± 800 (37) | |
| 1989 | 8.4 ± 0.6 (46) | 41.9 ± 0.5 (46) | 973.2 ± 39.9 (26) | 13.1 ± 0.4 (26) | 2.42 ± 0.07 (15) | 1.39 ± 0.01 (26) | 24388 ± 1163 (26) | |
| 1990 | 7.9 ± 0.3 (29) | 42.6 ± 0.5 (31) | 1039.9 ± 29.2 (31) | 13.5 ± 0.4 (31) | 1.62 ± 0.05 (30) | 1.34 ± 0.01 (31) | 21386 ± 1082 (22) | |
| 1991 | 8.6 ± 0.1 (88) | 41.5 ± 0.2 (88) | 924.9 ± 13.6 (88) | 12.9 ± 0.2 (86) | 1.78 ± 0.03 (88) | 1.29 ± 0.01 (88) | 17856 ± 772 (33) | |
| 1992 | 8.9 ± 0.4 (19) | 42.2 ± 0.3 (53) | 1019.4 ± 19.7 (53) | 13.5 ± 0.3 (53) | 1.95 ± 0.04 (40) | 1.35 ± 0.01 (53) | ||
| 1993 | 41.9 ± 0.3 (76) | 987.7 ± 17.9 (76) | 12.4 ± 0.6 (34) | 1.55 ± 0.03 (71) | 1.33 ± 0.01 (76) | |||
| 1996 | 11.9 ± 0.3 (103) | 43.7 ± 0.2 (104) | 1172.5 ± 19.4 (104) | 14.4 ± 0.2 (104) | 2.15 ± 0.03 (102) | 1.39 ± 0.01 (104) | 28262 ± 923 (51) | |
| 1999 | 44.6 ± 0.6 (22) | 1268.9 ± 58.6 (21) | 15.5 ± 0.6 (21) | 1.79 ± 0.06 (21) | 1.40 ± 0.02 (21) | 14348 ± 1150 (20) | ||
| 2001 | 8.9 ± 0.9 (16) | 43.6 ± 0.8 (20) | 1156.8 ± 71.6 (20) | 13.3 ± 0.5 (20) | 2.24 ± 0.05 (20) | 1.36 ± 0.02 (20) | 24693 ± 1613 (20) | |
| 2003 | 13.6 ± 1.1 (19) | 47.0 ± 0.7 (20) | 1417.7 ± 51.9 (20) | 14.5 ± 0.4 (20) | 1.89 ± 0.05 (20) | 1.36 ± 0.03 (20) | 28975 ± 1304 (20) | |
| 2006 | 13.8 ± 0.8 (37) | 45.0 ± 0.5 (37) | 1245.7 ± 40.6 (37) | 14.5 ± 0.5 (37) | 1.68 ± 0.06 (37) | 1.35 ± 0.02 (37) | 29525 ± 1577 (20) | |
| 2007 | 13.7 ± 1.0 (20) | 44.7 ± 0.7 (20) | 1212.2 ± 54.3 (20) | 14.8 ± 0.3 (20) | 1.83 ± 0.06 (20) | 1.34 ± 0.02 (20) | 26192 ± 860 (20) | |
| 2008 | 13.2 ± 1.1 (20) | 45.4 ± 0.4 (20) | 1359.3 ± 42.1 (20) | 15.5 ± 0.4 (20) | 1.99 ± 0.07 (20) | 1.44 ± 0.02 (20) | 28932 ± 1217 (20) | |
| 2011 | 11.7 ± 0.4 (101) | 43.9 ± 0.3 (101) | 1228.7 ± 28.5 (101) | 15.0 ± 0.3 (101) | 1.92 ± 0.03 (101) | 1.42 ± 0.01 (101) | 22250 ± 752 (99) | |
| 2012 | 13.4 ± 1.1 (19) | 45.1 ± 0.7 (20) | 1281.7 ± 56.2 (20) | 15.4 ± 0.5 (22) | 1.63 ± 0.06 (20) | 1.38 ± 0.02 (20) | 25547 ± 1981 (16) | |
| 2013 | 7.2 ± 0.5 (20) | 41.0 ± 0.6 (20) | 950.7 ± 47.8 (20) | 12.5 ± 0.4 (20) | 2.23 ± 0.02 (19) | 1.36 ± 0.02 (20) | 20290 ± 1333 (19) | |
| 2018 | 6.8 ± 0.2 (20) | 41.9 ± 0.5 (20) | 993.6 ± 38.2 (20) | 14.1 ± 0.3 (20) | 1.92 ± 0.06 (20) | 1.35 ± 0.02 (20) | 22839 ± 921 (20) | |
| 2019 | 8.2 ± 0.3 (20) | 42.8 ± 0.6 (20) | 1018.5 ± 42.7 (20) | 13.2 ± 0.6 (20) | 1.67 ± 0.06 (20) | 1.29 ± 0.02 (20) | 21235 ± 1309 (20) |
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).