step three.1 Assortment and you will wealth of your own hermit crab people

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step three.1 Assortment and you will wealth of your own hermit crab people

step 3.step 1.step 1 Sepangar coastline

A total of 850 specimens were built-up spanning of five varieties belonging to one or two genera regarding relatives Diogenidae: Clibanarius merguiensis, C. striolatus, Diogenes klaasi, D. pallescens and you may D. tumidus. The largest kinds try C. striolatus (SL 5.64 ± dos.55 mm), followed by C. merguiensis (5.forty five ± 2.forty eight mm), D. pallescens (4.37 ± 2.39 mm), D. klaasi (4.28 ± 2.37 mm) and you will D. tumidus (4.14 ± step 1.86 mm). The best assortment try filed at one hundred m (H? = step one.09) since lowest at 0 meters (H? = 0.00) where singular varieties (D. klaasi) are expose. Hermit crab types at the a hundred meters was in fact the most equally distributed (J? = 0.79) because they was basically minimum of uniformly delivered on 0 m (J? = 0.00) (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.

Imply occurrence (+SD) out of hermit crabs from the variety at an (e-f) coastlines. D. pallescens of Sepangar was not included because of low density and you may are absent in most programs.

step three.step 1.dos Sulaman shore

There were just two types in the Sulaman coastline; the latest prominent D. foresti (SL dos.83 ± step 1.03 mm) and something Diogenes sp. (Profile 3b) that has been too tiny (SL step 1.53 ± 0.42 mm) is completely understood. Diversity and you can evenness indices were not calculated getting hermit crabs for the Sulaman because of a minimal number of species. Thickness off D. foresti generally decreased out-of 3.33 ± dos.65 ind/m dos within 0 m so you can 0.16 ± 0.twenty-eight ind/m 2 within 30 yards (Contour 2e). Diogenes sp. is actually missing during the 31 meters and you will took place few that have an overall suggest density regarding 0.21 ± 0.32 ind/yards 2 . Chi-square try revealed zero relationship (? dos = 0.15, df = dos, p > 0.05) ranging from hermit crab species and you can route in Sulaman shore.

3.2 Shell use

Within Sepangar shore, a total of 31 shell types were used from the hermit crabs with most occupied shells becoming Clypeomorus batillariaeformis (%) followed by C. bifasciata (8.61%) and you can Rhinoclavis sinensis (4.13%) if you’re use of different kind regarding shells was markedly reasonable (Table step 3). Shells utilized by hermit crabs in the channel 5 appeared as if the absolute most diverse (H? = step 1.30, J? = 0.51) certainly every programs while station dos are minimum of diverse (H? = 0.66, J spicymatch giriÅŸ? = 0.30) (Table cuatro). This new structure regarding hermit crabs in line with the four really filled shells try revealed within the Profile cuatro. The new layer classification ‘others’ signifies this new collective ratio away from hermit crabs because of the species you to definitely made use of the leftover twenty six shell brands. New empty shells off C. batillariaeformis composed the majority of shells utilized by all hermit crab varieties while shells off C. bifasciata depicted generous ratio off shells utilized by C. striolatus (17%), D. tumidus (11%) and D. klaasi (6%) (Profile 4). On Sulaman coast, just a couple of shells were used by the hermit crabs: Nassarius livescens and you can Cerithidea cingulata towards the latter filled by 98% of one’s hermit crabs (Table step three).