GSI out-of both genders enhanced from April to June, peaked inside Summer, and steadily refused from the june and you can slide

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 < 0.01) and the Pumpernickel Cove site (Pearson chi-square goodness of fit, [chi square] = , df = 7, P < 0.01).

The latter included somebody thought to sexually younger

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 < 0.01) and female GSI (Kruskal-Wallis, KW = , df = 8, P < 0.01) were significant. Males and females containing visibly ripe gonadal tissue were collected from May to October, and over 93% of adults collected from June to August were visibly ripe. Females with hydrated ovaries were collected from June through September, and the highest frequency of hydrated females occurred in July (Figure 5). The mean GSI of females with hydrated ovaries (5.79%) was significantly higher than the mean GSI of non-hydrated, ripe females (3.56%; unpaired t test, t = 7.78, df = 229, p < 0.01).

Operating system stage people were expose for hours on end as well as on a great regular basis both in the field observations used off , plus the new attentive examination of 2002. Operating system phase citizens were maybe not seen in industry findings used for the late . Given that no factor is actually found in the month-to-month regularity of this new Operating-system phase certainly guys accumulated of (Pearson chi-rectangular god from match, [chi-square] = 1.19, df = 2, P = 0.55), analysis out-of every men gathered regarding during this time had been pooled for further analysis. Through that months, Os stage boys was indeed accumulated hookup bars near me Colorado Springs for hours on end and you will showed no high variations in frequency according to time captured (Pearson chi-square goodness regarding match, [chi-square] = 1.36, df = 2, p = 0.51). Additionally, the fresh volume off Os phase guys did not differ somewhat certainly one of the four number 1 stages of lunar cycle (Pearson chi-square, [chi-square] = 4.forty-five, df = 3, P = 0.22).

Operating-system phase guys compiled from varied in proportions from 165 so you can 386 mm SL, and you will calico stage people accumulated during those times months varied in dimensions out-of 170 to help you 397 mm SL (Shape 6). The fresh new indicate period of obtained Os stage people ( mm) is actually significantly greater than the fresh new imply amount of compiled calico stage boys ( mm; Mann-Whitney, U = 5455.0, df = 247, P = 0.001). not, this effects wasn’t considered biologically extreme, because the adult P. clathratus expand so you’re able to lengths of greater than 700 mm SL (Love ainsi que al. 1996). The shape a number of attentive Operating-system stage males (211 in order to 348 mm SL) is like attentive calico stage guys (212 to 343 mm SL). Operating system stage some body noticed in industry varied inside the estimated dimensions of 2 hundred to help you five-hundred mm SL, while you are calico phase some one noticed varied in dimensions off 100 to help you five-hundred mm SL.

The new estimated spawning 12 months centered on GSI and you may readiness investigation showed a period like the month-to-month volume off compiled Operating-system phase males

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 < 0.01) (Figure 7b).


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