The Biodiversity of Gastropods In Karapyak Rocky Shores, Pangandaran Region, West Java Province, Indonesia

Sahidin, Asep; Zahidah, Zahidah; Hamdani, Herman; Riyantini, Indah; Sewiko, Roni

doi:10.20884/1.oa.2018.14.2.547

Cited by 7 publications

(8 citation statements)

References 5 publications

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“…With respect to the large marine mollusks offered for sale in Pangandaran, these ecological processes and the effects of the removal of large numbers of mollusks are not affecting the local ecosystems as many, and perhaps most, of the shells are not collected in this part of Indonesia (cf. Sahidin et al 2018). Of all the species traded in Pangandaran, it is especially the larger ones that have both ecological and economic significance.…”

Section: Discussionmentioning

confidence: 99%

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Souvenirs, Shells, and the Illegal Wildlife Trade

Nijman

2019

Journal of Ethnobiology

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Shells are often seen as portable souvenirs, and both domestic and international tourists bring shells home. While part of this activity concerns individual tourists collecting a small number of shells on the beach, another part concerns large-scale commercial trade. Each year the Indonesian beach resort of Pangandaran is visited by several million tourists, most from within Indonesia. Here, I focus on the commercial trade in large-sized shells for decorative purposes and, using an anthropological approach, gain insight into the trade in marine mollusk shells of the area. A number of the large-shelled species are rare and over-exploited, and receive different levels of protection. By comparing three pairs of similar species, in which one species is legally protected (i.e., on Indonesia's protected species list) and the other is not, I attempt to gauge how rarity and protection affects trade. Protected species were as openly displayed as non-protected species, and more shops offered the protected than the unprotected species. The Indonesian shell trade involves a complex and organized network of collectors, transporters, middlemen, and sellers. Traders indicated that they purchased shells from middlemen, who obtained them from eastern Indonesia; no shells were collected in the Pangandaran area. The main buyers of these large shells are domestic Indonesian tourists. Pangandaran is a trade hub for shells to meet the demands of an urban consumer market in Java. While protected, there is no social stigma in buying these shells, nor do traders that display them run the risk of prosecution, indicating a lack of support for protective and regulatory measures.

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Section: Discussionmentioning

confidence: 99%

“…Research on tourism and development is limited (but see Wilkinson and Pratiwi 1995), and reports on wildlife trade in Pangandaran are few (e.g., Hilterman and Goverse 2005; Nijman et al 2015). Recently, the first study on marine mollusks in the waters around Pangandaran was published (Sahidin et al 2018).…”

Section: Methodsmentioning

confidence: 99%

Souvenirs, Shells, and the Illegal Wildlife Trade

Nijman

2019

Journal of Ethnobiology

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“…The intertidal of Pangandaran is one of the tourist destinations on the southern coast of the Java Island that has a predominantly steep crag, rocky and sandy substrate [46,34] . The coastal with rocky substrates and corals are the areas most inhabited by marine organisms and have a great diversity both for animals and plants [44] , including the marine invertebrate organisms, especially in Mollusca and Cnidaria phyla.…”

Section: Decrease Of Invertebrate Diversitymentioning

confidence: 99%

“…The intertidal zone is the smallest spot of world oceans, which are only a few meters between high and low tides. Although the area is very limited, it has the largest variety of environmental factors compared to other oceans [38] it is habitats of various marine aquatic organisms like for feeding, nursery, and spawning ground [36,46] . Organisms that are directly associated with the intertidal zone are macroinvertebrates such as mollusks, crustacea, Polychaeta, oligochaete and echinoderms.…”

Section: Introductionmentioning

confidence: 99%

“…Karapyak, Karang Nini, Pasir Putih, Pantai Barat, Batu Hiu, Muara Cijulang, Nusa Wiru and Madasari coastal are one intertidal area in Pangandaran district which has a rocky, coral, sand and muddy substrate. Various species invertebrate found in Karapyak intertidal shore, one of them gastropods [46] . Based on these reasons, it is necessary to research spatial and temporal variations of marine invertebrate biota as an effort to conserve biodiversity in Pangandaran intertidal tourism, Indonesia.…”

Section: Introductionmentioning

confidence: 99%

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Diversity, distribution and decreasing factor of intertidal invertebrate communities in the Pangandaran Turism, Indonesia

Sahidin¹,

Hamdani²,

Zahidah³

et al. 2021

Int. J. Fish. Aquat. Stud.

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The intertidal of Pangandaran is one of the tourist destinations on the southern coast of Java Island. The purpose of this study was to describe the diversity, distribution of invertebrate in Pangandaran Tourism, West Java Province, Indonesia. The sample were taken from eight site sampling locations from July 2017 to November 2018. Sample taken with line transect method and their diversity and distribution was analyzed by Morisita Index and Similarity Index. The research found 139 species spread to 12 classes and 7 phyla of invertebrate. A phylum of mollusca dominated with 71.2%, followed by Cnidaria with 7.9%. Faunus ater, Terebia sp, Clithon oualaniensis found dominant in muddy shore substrate, Cerithium breviculum, Thais jubilaea, Anthopleura elegentissima found dominant in rocky shore substrate and Hastula bacillus just found in sand shore substrate. Clibanarius vittatus is a cosmopolitan crustacea species found in every substrate characteristic with abundance (69 ± 15) ind.m -2 . High diversity shows in rocky shore substrate with a range H' (3.99-5.08) and low diversity shows on steep crag substrate with range H' (0.50-0.65). The distribution of group categories by Morisita is dominant, while the cluster analysis of Bray-Curtis showed four clusters based on the difference of substrate. Diversity and abundance decrease of invertebrate communities influenced by pressure from anthropogenic activities, tourism activities, illegal trade fossil and invertebrate as live, capture and water pollution.

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Application of fermented bran and probiotics to enhance mass-scale production of Phronima sp. in the pond

Ruliaty,

Amalia,

Aulia

et al. 2023

E3S Web Conf.

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This study aimed to evaluate the efficacy of utilizing probiotics and organic matter as nutrients for Phronima sp. mass cultures in ponds. Culture media, which had water depths of 40 cm was added to the pond plots (35×30×0.4 m), then sterilized and neutralized. Organic fertilizer (70 kg/1000 m2) was spread, and after 3 days the inorganic fertilizer was spread in the form of ZA (20 ppm), TSP (5 ppm), and NPK (5 ppm). Rice bran, a by-product of rice production, was fermented with molasses for a week, with a dosage of 1:0.25. Fermented bran mixed with probiotics (ratio of 1:1) was used as daily feed. Phronima sp. was spread with a density of 137 individuals/m2. The population density was monitored weekly. The test results showed that the growth pattern of Phronima sp. formed a sigmoid curve consisting of the lag phase, specific growth rate, population peak, and death phase. There was a significant population increase from the fourth to the seventh week, with a peak population density in the seventh week, reaching a density of 87,300 ± 6,526 individuals/m2. In the eighth week, the population density drastically decreased to only 10% of the peak.

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The Biodiversity of Gastropods In Karapyak Rocky Shores, Pangandaran Region, West Java Province, Indonesia

Cited by 7 publications

References 5 publications

Souvenirs, Shells, and the Illegal Wildlife Trade

Souvenirs, Shells, and the Illegal Wildlife Trade

Diversity, distribution and decreasing factor of intertidal invertebrate communities in the Pangandaran Turism, Indonesia

Application of fermented bran and probiotics to enhance mass-scale production of Phronima sp. in the pond

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