Calico phase individuals were observed at both transect sites throughout the study period (Figure 4). OS phase males were observed at both transect sites from , where they increased in frequency over this period (Figure 4). Monthly variations in the proportion of OS phase individuals observed on transects were significantly different than expected at random for both the Intake Pipes site (Pearson chi-square goodness of fit, [chi square] = , df = 7, P
The second incorporated people thought to intimately young
Mean monthly GSI of males (Figure 3) and females (Figure 5) remained low from January to April. GSI values of males and females were lowest in February and December. Monthly variations in male GSI (Kruskal-Wallis, KW = , df = 8, P
Os phase people were establish from day to night as well as on a beneficial daily basis in both the field observations presented regarding , plus in the fresh captive examination of 2002. Operating system phase citizens were perhaps not observed in profession observations presented when you look at the later . Since the zero factor was based in the month-to-month volume regarding the Operating system phase one of people compiled from (Pearson chi-square jesus regarding match, [chi-square] = step one.19, df = dos, P = 0.55), investigation out-of all the men amassed of during this time period were pooled for further research. Through that months, Os stage guys was obtained from day to night and shown no high differences in frequency according to the time period grabbed (Pearson chi-rectangular god away from match, [chi square] = step 1.thirty six, df = dos, p = 0.51). Also, new regularity out-of Os stage people didn’t differ somewhat among the new four no. 1 levels of best Boise hookup site one’s lunar duration (Pearson chi-square, [chi square] = 4.forty five, df = step three, P = 0.22).
Operating-system stage people collected regarding varied sizes regarding 165 so you’re able to 386 mm SL, and you will calico phase males collected during that time period varied during the size regarding 170 so you’re able to 397 mm SL (Profile 6). The brand new mean duration of collected Operating-system phase people ( mm) is notably more than the fresh indicate duration of collected calico phase males ( mm; Mann-Whitney, U = 5455.0, df = 247, P = 0.001). not, so it impact wasn’t experienced naturally significant, just like the adult P. clathratus develop to help you lengths greater than 700 mm SL (Love ainsi que al. 1996). The dimensions listing of attentive Os stage males (211 in order to 348 mm SL) was like captive calico stage people (212 so you’re able to 343 mm SL). Operating-system phase some one found in industry ranged within the estimated dimensions from 200 so you’re able to 500 mm SL, when you find yourself calico phase somebody observed ranged in proportions of a hundred so you can five-hundred mm SL.
Brand new estimated spawning 12 months based on GSI and you may readiness analysis shown a routine very similar to the month-to-month regularity out-of built-up Operating system stage guys
The OS phase was present only in ripe males, whereas the calico phase was present in both ripe and unripe males. Sixty-seven percent of ripe males collected during 2001 were OS phase and 33% were calico phase. Among males collected from , the GSI range of OS males (0.42% to %) were similar to that of calico phase males (0.17 to %) (Figure 7a). However, the mean GSI of OS males (5.69%) was significantly higher than that of calico phase males (2.88%) collected from (Mann-Whitney, U = , df = 237, P