Diversity and abundance of mangrove fiddle crabs, genus Uca (Decapoda, Ocypodidae) at a mangrove in Kema, North Sulawesi, Indonesia

Pratiwi, Rarastoeti; Widyastuti, Ernawati; Chen, Guangcheng; Chen, Shunyang

doi:10.1007/s13131-018-1336-8

Cited by 8 publications

(7 citation statements)

References 16 publications

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“…The complexity of mangrove vegetation, substrate type, and the presence of seagrass in the sea zone support the high diversity of crustaceans. Pratiwi et al (2018), also found that crustacean diversity (especially Uca spp.) at a mangrove in Kema North Sulawesi was higher in the marine and middle zones than in the landward zone.…”

Section: Crustacean Diversitymentioning

confidence: 89%

Crab diversity as support for ecotourism activities in Pejarakan Mangrove Forest, Buleleng, Bali, Indonesia

2021

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Abstract. Ginantra IK, Muksin IK, Joni M. 2021. Crab diversity as support for ecotourism activities in Pejarakan Mangrove Forest, Buleleng, Bali, Indonesia. Biodiversitas 22: 4139-4145. This research aims to determine the diversity of crabs to support ecotourism activities in the coastal mangrove forest of Pejarakan Buleleng. Sampling of crabs was carried out using the square method, as many as 23 squares were spread over three mangrove zones, namely the front zone, the middle zone, and the rear zone. The number of individual crustacean species in each square plot was counted. Crab identification is based on morphological characters (shell color, claw shape, body-color, body size). Habitat use activities are observed directly. The diversity of crabs was calculated using the Shannon-Wiener diversity index. The results showed that in the coastal mangrove area of Pejarakan Buleleng, there were 11 species of crabs (9 species of crabs and 2 species of hermit crabs). Species diversity is in the medium category (index 2.25) and evenness index is high (E = 0.93, mangrove conditions are stable). The seaward mangrove zone shows a higher diversity of crab species than the middle zone and the rear zone. The species of crabs that are quite abundant in the three zonings are Uca vocans, Chiromanthes sp., and Coenobita sp. Characteristics of crabs, activities, habitat use in mangrove zoning are attractions for ecotourism activities.

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Section: Crustacean Diversitymentioning

confidence: 89%

Crab diversity as support for ecotourism activities in Pejarakan Mangrove Forest, Buleleng, Bali, Indonesia

2021

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“…On the other hand [47] found in the Kema mangrove in the north of Sulawesi (Indonesia) an average density of 24.89 individuals/m 2 for species of genus Uca. [48] , for the species Uca annulipes, gave average densities of 18.5 and 17.5 individuals/m 2 in spring tide and low tide of the Mida Stream (Kenya). On the one hand, this difference would be due to the method used, especially to the climatic conditions that conditioned the biology of crabs.…”

Section: Discussionmentioning

confidence: 99%

Size class, density, and distribution of Uca tangeri (Eydoux, 1835; Decapoda: Ocypodidae) in the mangrove ecosystems of Senegal

Manga¹,

Faye²,

Fall³

et al. 2023

Int. J. Fish. Aquat. Stud.

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This study focusing on the decapod brachyuran Uca tangeri is the first of its kind in Senegal. It was carried out in the mangroves of the Senegal River delta, the Saloum islands, and the Casamance estuary. The modal cephalothoracic length (L; mm) is between 24 and 25 mm in Saint -Louis, 18 and 19 mm in the Saloum, and 16 and 17 mm in Casamance. The modal cephalothoracic weight (Wei; mm) oscillates between 31 and 32 mm in Saint-Louis, 24 and 25 mm in the Saloum, and 25 and 26 mm in Casamance. Whether it is the relation Lc/We or that of the height/weight, the allome-tric growth of crabs is negative (b <3). Likewise, the correlation coefficient values revealed a strong relationship (R >0.8) among the biometric parameters. The average crab density in the mangrove is between 1.3 and 1.6 crabs per square meter. The strong presence and abundance of Uca tangeri suggest this species does not have a preferential spatial distribution.

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“…Several studies reported that Austruca spp. found in mangrove areas in West Sumatra (Lauren and Sumarmin 2020), South Kalimantan (Fauzan et al 2020), Central Java (Irwansyah et al 2021), North Sulawesi (Rianta et al 2018), Manado (Michael et al 2020), and South Papua (Masiyah et al 2021). In the mangrove ecotourism area of Pagatan Besar, Tanah Laut District, A. annulipes in the three observation plots with species density values in each plot sequentially, namely 0.42 ind/m 2 , 1.08 ind/m 2 , and 8.50 ind/m 2 (Fauzan et al 2020).…”

Section: Austruca Annulipes Densitymentioning

confidence: 99%

Population density and distribution patterns of Austruca annulipes (Ring-legged fiddler crab) in the mangrove of Bogowonto Estuary, Kulon Progo, Yogyakarta, Indonesia

FADILAH

YULIA

ALFITRA

et al. 2023

Intl J Bonorowo Wetlands

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Abstract. Fadilah RN, Yulia IT, Alfitra ZS, Armadhan WS, Widyaningtyas R, Rahmayani D, Permatasari DP, Igustita, Kusuma D, Prambudi SA, Berlin GE, Triyanto A, Sutarno, Indrawan M, Dadiono MS, Rahim KABA, Setyawan AD. 2023. Population density and distribution patterns of Austruca annulipes (Ring-legged fiddler crab) in the mangrove of Bogowonto Estuary, Kulon Progo, Yogyakarta, Indonesia. Intl J Bonorowo Wetlands 13: 1-8. The mangrove forest ecosystem is a forest with coastal plant characteristics that are influenced by tides and tolerate high salt levels. Mangrove forests in Indonesia contain about 89 species of flora, and around 18% of their fauna are keystone species. Keystone species are species that play an important role in maintaining the balance of the ecosystem. Austruca annulipes (H. Milne-Edwards, 1837), or Ring-legged fiddler crab is one of the fauna species in the mangrove ecosystem, which has an important role in maintaining the balance of the food chain and nitrogen cycle, so the study of this species is very important for the sustainability of the ecosystem in mangrove area. This study aimed to determine the population density and distribution patterns of A. annulipes in the Mangrove Bogowonto Estuary Area, Kulon Progo, Yogyakarta, Indonesia. The research method was purposive random sampling using a 10m x 10m square plot. Furthermore, the identification of morphology and documentation of the activities of A. annulipes was carried out, and data were examined using calculations of crab density. Based on the research finding, the population density of A. annulipes is 0.9975 individuals/m2. Calculating the Morisita Index of A. annulipes obtained a value of 1.38 with the category of clumped distribution patterns. Various factors influence this distribution, including abiotic factors such as soil moisture, temperature, air, salinity, and pH. In addition, the presence of vegetation has also affected the density of A. annulipes because it is used as a shelter and foraging among its roots.

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Diversity and abundance of mangrove fiddle crabs, genus Uca (Decapoda, Ocypodidae) at a mangrove in Kema, North Sulawesi, Indonesia

Cited by 8 publications

References 16 publications

Crab diversity as support for ecotourism activities in Pejarakan Mangrove Forest, Buleleng, Bali, Indonesia

Crab diversity as support for ecotourism activities in Pejarakan Mangrove Forest, Buleleng, Bali, Indonesia

Size class, density, and distribution of Uca tangeri (Eydoux, 1835; Decapoda: Ocypodidae) in the mangrove ecosystems of Senegal

Population density and distribution patterns of Austruca annulipes (Ring-legged fiddler crab) in the mangrove of Bogowonto Estuary, Kulon Progo, Yogyakarta, Indonesia

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