Mangrove ecosystem in North Sumatran (Indonesia) forests serves as a suitable habitat for mud crabs (Scylla serrata and S. olivacea)

Karniati, Rika; Sulistiyono, Nurdin; Amelia, Rina; Slamet, Bejo; Bimantara, Yuntha; Basyuni, Mohammad

doi:10.13057/biodiv/d220353

Cited by 12 publications

(11 citation statements)

References 33 publications

(41 reference statements)

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“…While the diversity index (H') of macrozoobenthos ranged from 1.54 to 1.81 ind/m 2 , which was included in the low to a medium category, mangroves with a high density provide good shelter and support the availability of adequate nutrient intake from litter (Bayan et al 2016). Fallen mangrove leaves will be decomposed by microbial communities that engage in further functions to produce organic matter and nutrients in the soil, land, and ecosystem (Karniati et al 2021). This relationship maintains the ecosystem's balance in the substrate and serves as a food supply for macrozoobenthos.…”

Section: Discussionmentioning

confidence: 99%

Vegetation and macrozoobenthos diversity in the Percut Sei Tuan mangrove forest, North Sumatra, Indonesia

et al. 2021

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Hasibuan IM, Amelia R, Bimantara Y, Susetya IE, Susilowati A, Basyuni M. 2021. Vegetation and macrozoobenthos diversity in the Percut Sei Tuan mangrove forest, North Sumatra, Indonesia. Biodiversitas 22: 5600-5608. The mangrove forest offers a habitat for a variety of marine species, including macrozoobenthos. Macrozoobenthos live at the bottom of the waters on hard to muddy substrates, where they break down mangrove debris, ensuring microorganisms' ease in decomposing organic matter into inorganic materials that provide nutrients to producers in the water. The study aimed to determine the vegetation and macrozoobenthos diversity in the Percut Sei Tuan mangrove forest, North Sumatra, Indonesia. This research was executed with vegetation analysis, employing a sampling method in the form of plots, as many as three transects and 66 plots. The sampling of macrozoobenthos was conducted on the substrate surface, roots, and mangrove trunk for three stations and nine plots with a size of 1 m x 1 m. We found 10 true mangrove species where Avicennia marina was the most abundant, found at each seedling, sapling, and tree-stage with an important value index (IVI) of 64.62%, 75.73%, and 92.12%, respectively. Overall, the number of individuals in the species found was 1666.67/Ha at the seedling stage, 1090.91/Ha at the sapling stage, and 842.42/Ha at the tree stage. Seven macrozoobenthos species were found and classified into four classes of Gastropoda, Polychaeta, Mollusca, and Arthropoda, with population abundance values being 9.33 ind/m2 at a station I, 7.44 ind/m2 at station II, and 8.78 ind/m2 at station III. The diversity index (H') of the observed location was determined to be 1.63-2.06, which was classified into the medium category, while H' macrozoobenthos ranging from 1.54-1.81 were classified into the low to moderate category. The observed parameters' physical and chemical factors presented that the condition of the waters in the research area is still considered suitable for supporting macrozoobenthos life, with dissolved oxygen being strongly correlated to macrozoobenthos diversity.

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Section: Discussionmentioning

confidence: 99%

Vegetation and macrozoobenthos diversity in the Percut Sei Tuan mangrove forest, North Sumatra, Indonesia

et al. 2021

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“…The Scylla spp., mostly has a wide tolerance to the condition of temperature and salinity. Tropical and subtropical condition is very suitable for their lives (Avianto et al, 2013;La sara et al, 2014;Alberts-Hubatsch et al, 2016;Karniati et al, 2021). However, temperatures below 16°C causes them in active (Hill, 1980).…”

Section: Mangrove Crabs Species Composition With the Biological Indicesmentioning

confidence: 99%

“…However, temperatures below 16°C causes them in active (Hill, 1980). They also can tolerate the salinity from low conditions to the higher condition (Davenport & Wong, 1987;Hill, 1979;La Sara et al, 2014;Karniati et al, 2021), however, extreme salinity (more than 64) is lethal for their life (Hill, 1979). Water and mud depth including the dissolved oxygen also cause an impact on the living of the mud crabs (Karniati et al, 2021).…”

Section: Mangrove Crabs Species Composition With the Biological Indicesmentioning

confidence: 99%

On the abundance and occurrence of the mangrove crabs, Scylla spp. (Crustacea: Portunidae) from Munjang mangrove, Bangka Belitung Island

Raniah

Henri

Kurniawan

2022

JRBA

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The mangrove ecosystem is one of the most productive ecosystems on earth. This ecosystem provides a lot of functions for the living organism inhabiting here, such as fishes, mollusks, echinoderms, crustaceans, ect. The mangrove crab is one of the common crustaceans that can be found in the mangrove. This Purtunidae crab is very popular due to their role in the food chain as well as for the economic income that has a high value in the market. However, overexploitation may decrease the crab population. This study aimed to investigate the abundance and occurrence of the mangrove crabs from Munjang mangrove, Bangka Belitung Island from August 2020 to June 2021 using baited traps with the line transect method at four zones. A total of four species of mangrove crabs, Scylla olivacea, S. paramamosain, S. serrata and S. tranquebarica, were found in this location and dominated by S. serrata. Shannon diversity index (H’) was a in low category (<1), evenness index range (J) from 0.35 to 0.89, and there was dominant species in this study. The bed sediment iswas dominated by the muddy clay substratum except in zone 4 with sandy. Overall, this location is a suitable habitat for the Scylla spp. And better management is urgently needed before these crabs are exploited by humans.

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“…The existence of crabs directly depends on mangrove resources for survival and adaptation to various conditions of sediments. The distribution and diversity of crabs are related to several parameters including substrate pH, nitrogen, potassium, phosphorus, and soil organic carbon (Saher and Qureshi 2011;Murugan and Anandhi 2016;Prasanna et al 2017;Kamaruddin et al 2019;Karniati et al 2021).…”

Section: Crustacean Diversitymentioning

confidence: 99%

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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Mangrove ecosystem in North Sumatran (Indonesia) forests serves as a suitable habitat for mud crabs (Scylla serrata and S. olivacea)

Cited by 12 publications

References 33 publications

Vegetation and macrozoobenthos diversity in the Percut Sei Tuan mangrove forest, North Sumatra, Indonesia

Vegetation and macrozoobenthos diversity in the Percut Sei Tuan mangrove forest, North Sumatra, Indonesia

On the abundance and occurrence of the mangrove crabs, Scylla spp. (Crustacea: Portunidae) from Munjang mangrove, Bangka Belitung Island

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

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