3.step one Variety and abundance of the hermit crab neighborhood

3.step 1.step one Sepangar shore

A maximum of 850 specimens was indeed compiled comprising of five kinds belonging to a couple genera regarding friends Diogenidae: Clibanarius merguiensis, C. striolatus, Diogenes klaasi, D. pallescens and D. tumidus. The most significant variety was C. striolatus (SL 5.64 ± dos.55 mm), followed closely by C. merguiensis (5.forty five ± 2.forty eight mm), D. pallescens (cuatro.37 ± dos.39 mm), D. klaasi (cuatro.twenty eight ± dos.37 mm) and you can D. tumidus (4.fourteen ± 1.86 mm). The very best variety is recorded from the 100 yards (H? = step 1.09) while the reduced during the 0 yards (H? = 0.00) where only 1 types (D. klaasi) is introduce. Hermit crab kinds during the one hundred yards was basically by far the most evenly delivered (J? = 0.79) because they have been minimum of uniformly marketed on 0 m (J? = 0.00) (Dining table dos).

The overall highest density was reported for D. tumidus (8.98 ± 6.52 ind/m 2 ) which peaked at 50 m ( ± ind/m 2 ) but absent at 0 m (Figure 2a). This species was dominant at both 50 and 75 m stations (Figure 3a). Density of D. tumidus decreased gradually towards 100 m. On the other hand, D. klaasi was present in the first three stations (0, 25 and 50 m) and absent at 75 and 100 m. It was the sole species at 0 m with density of 6.25 ± 7.39 ind/m 2 . Peak density of this species was observed at 25 m ( ± ind/m 2 ) (Figure 2b). Densities of both Clibanarius species generally increased towards the sea. At the highest station (0 m), C. striolatus was absent but gradually increased in density from 25 m (0.22 ± 0.54 ind/m 2 ) to 100 m (5.33 ± 8.92 ind/m 2 ) (Figure 2c). Similarly, C. merguiensis was absent at 0 m but had density peak at 100 m (6.11 ± 7.20 ind/m 2 ). Lowest density of this species was recorded at 75 m (1.17 ± 2.07 ind/m 2 ) (Figure 2d). The results from ANOVA showed no significant difference (p > 0.05) in density among stations for all species. The least abundant species in the study was D. pallescens which was present at 50 m (0.11 ± 0.17 ind/m 2 ) and 100 m (0.11 ± 0.27 ind/m 2 ). Chi-square test revealed strong dependency/association (? 2 = , df = 16, p < 0.0001) of hermit crab species on stations/zones in Sepangar shore.

Indicate density (+SD) of hermit crabs of the types from the an (e-f) beaches. D. pallescens off Sepangar was not incorporated due to suprisingly low thickness and is actually missing for the majority station.

step three.step 1.2 Sulaman coast

There had been only several variety at Sulaman coastline; new principal D. foresti (SL dos.83 ± 1.03 mm) and one Diogenes sp. (Contour 3b) that was too little (SL step 1.53 ± 0.42 mm) as fully known. Variety and evenness indicator just weren’t determined to own hermit crabs in the Sulaman due to the lowest number of kinds. Occurrence from D. foresti basically decreased from 3.33 ± 2.65 ind/m dos from the 0 yards so you’re able to 0.sixteen ± 0.28 ind/m 2 within 29 yards (Figure 2e). Diogenes sp. is absent during the 31 yards and you will occurred in small number which have an overall mean occurrence from 0.21 ± 0.thirty two ind/meters 2 . Chi-square sample shown zero organization (? 2 = 0.fifteen, df = 2, p > 0.05) between hermit crab variety and route when you look at the Sulaman shore.

step 3.2 Cover use

At Sepangar shore, all in all, 29 layer variety were utilized from the hermit crabs with most occupied shells being Clypeomorus batillariaeformis (%) followed closely by C. bifasciata (8.61%) and you may Rhinoclavis sinensis (4.13%) if you are using other type from shells have been significantly lower (Desk step three). Shells employed by hermit crabs at the station 5 appeared as if one particular varied (H? = step one.29, J? = 0.51) certainly one of all of the station while route 2 is actually at least diverse (H? = 0.66, J? = 0.30) (Table 4). The latest constitution off hermit crabs in accordance with the five really occupied shells was shown in the Profile 4. This new shell class ‘others’ signifies the fresh collective ratio out-of hermit crabs of the kinds one utilized the remaining 26 shell items. The new blank shells away from C. batillariaeformis composed the majority of shells used by every hermit crab variety whereas shells away from C. bifasciata portrayed generous ratio off shells utilized by C. striolatus (17%), D. tumidus (11%) and you may D. klaasi (6%) (Shape cuatro). At Sulaman coastline, just russiancupid giriÅŸ several shells were used by the hermit crabs: Nassarius livescens and Cerithidea cingulata on the latter filled by 98% of hermit crabs (Table 3).

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