Loher et al.: Growth of Parahthodes camtschciticus 
577 
Table 2 
Points used to construct the Unalaska early juvenile red king crab growth curve from data of Weber (1967) (his Appendix Table II). The original data 
come from crabs that were collected at a number of study sites around Unalaska Island; the “sample area” column in this table refers to different study 
sites as designated by Weber ( 1967). Refer to the original paper for descriptions of each specific sample area. 
Sample 
Estimated age 
Molt 
Size range 
Mean size (mm) 
Collection date 
area 
(days after settlement) 
status 
(mm) 
±1 SD 
17 Sep-1 Oct 1958 
2 
86 
not reported 
4-6 
4.81 ±0.634 
11-24 Feb 1959 
2 
232.5 
postmolt 
7-10 
8.32 ±0.750 
22 Apr-17 May 1958 
2 
309 
not reported 
8-17 
12.62 ±1.799 
24 May-2 Jun 1959 
2 
333.5 
pre- and postmolt 
8-16 
11.26 ±1.406 
30 May-6 Jun 1958 
2 
338.5 
not reported 
9-18 
12.73 ±1.433 
13 Jul 1958 
2 
379 
not reported 
13-18 
16.06 ±0.869 
17 Sep-1 Oct 1958 
2 
452 
not reported 
15-34 
24.08 ±3.994 
17 Sep-1 Oct 1958 
4 
452 
not reported 
17-29 
20.22 ±1.500 
11 -24 Feb 1959 
2 
598.5 
premolt 
23-35 
29.62 ±2.376 
11-24 Feb 1959 
2 
598.5 
postmolt 
25-44 
35.12 ±3.798 
11-24 Feb 1959 
4 
598.5 
pre- and postmolt 
22-40 
30.56 ±4.200 
22 Apr-17 May 1958 
1 
674 
not reported 
29-35 
31.85 ±1.682 
22 Apr-17 May 1958 
2 
674 
not reported 
23-48 
36.68 ±4.392 
24 May-2 Jun 1959 
4 
698.5 
premolt 
28-41 
29.10 ±2.783 
24 May-2 Jun 1959 
4 
698.5 
postmolt 
31-41 
33.73 ±2.919 
24 May-2 Jun 1959 
2 
698.5 
premolt 
25-41 
35.00 ±2.388 
24 May-2 Jun 1959 
2 
698.5 
postmolt 
28-51 
39.65 ±4.238 
30 May-6 Jun 1958 
2 
703.5 
not reported 
29-50 
39.75 ±4.373 
17 Sep-1 Oct 1958 
4 
817 
not reported 
41-53 
45.86 ±3.308 
11-24 Feb 1959 
1 
963.5 
premolt 
33-51 
40.85 ±3.162 
11-24 Feb 1959 
1 
963.5 
postmolt 
41-69 
49.17 ±4.925 
22-24 Feb 1959 
3 
963.5 
premolt 
42-74 
52.70 ±6.000 
11-24 Feb 1959 
3 
963.5 
postmolt 
51-82 
66.23 ±8.030 
11-24 Feb 1959 
4 
963.5 
premolt 
43-78 
57.19 ±7.659 
Kodiak Island data. Seasonalized Gompertz 
growth functions were fitted to the data; von 
Bertalanffy growth curves are not presented 
because their fits were poorer by comparison 
(Table 4). Model fits and parameter estimates 
for Gompertz growth functions are reported in 
Table 5, along with model estimates of CL at 
ages 1.0 and 2.0 at all sites, and at age 3.0 for 
Bristol Bay and Unalaska Island; predicted 
sizes at ages 0.9, 1.9, and 2.9 are also reported 
because the Bering Sea trawl survey occurs 
~0.1 years prior to the settlement season. No 
data were available for Kodiak Island crabs 
beyond age ~2; therefore model predictions 
are not reported beyond this age. 
Intrinsic growth rate was lowest in Bristol 
Bay and was coupled with a very strong sea- 
sonal signature, with no growth expected dur- 
ing mid-winter. The growth rate observed at 
Kodiak Island was higher than in Bristol Bay, 
with a moderate seasonal signature, whereas 
Estimated age (years after settlement) 
Figure 4 
Seasonalized Gompertz growth curves fitted to mean size-at-age data 
from Bristol Bay, Unalaska Island, and Kodiak Island. Note that no data 
were available for Kodiak crabs > ~2 years after settlement. 
