Komparasi Deversitas Moluska Musim Hujan dan Kemarau Di Kawasan Mangrove Luppung, Kabupaten Bulukumba

Litaay, Magdalena; Sutrisnu, Like Ayu; Rahmawati, Andi; Istiqamah, Nurul Fajriah; Utariningsih, Aryuni; Putra, Ayub Wirabuana

doi:10.14710/jkt.v26i1.16399

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…The high population at station II is likely because this area is still natural and not influenced by community activities compared to other stations, so this area contains a lot of litter from mangrove plants and organic matter needed by Bivalves as a food source. The species and density of mangroves will affect the existence and density of Bivalves [32]. Due to the high density of mangroves, many macrozoobenthos species and Bivalve populations are found in this area.…”

Section: Figure 3 Mollusca Diversity Index Valuementioning

confidence: 99%

Mollusca Biodiversity as A Quality Bioindicator Waters in Central Lombok Gerupuk Bay Coastal Area

Berliana,

Candri,

Ahyadi

2024

J. Pijar.MIPA

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Various natural resource utilization activities on the coast of Gerupuk Bay can potentially affect the quality of the aquatic environment, both biotic and abiotic, one of which is mollusc biodiversity. This study aimed to determine the relationship between the existence of Mollusca biodiversity and water quality and substrate in Gerupuk Bay. This study used a quantitative descriptive method of determining stations using the purposive sampling method based on differences in community activities at each station. Sampling was conducted at three stations, including Mollusca samples and water quality measurements: salinity, pH, temperature, and substrate. Molluscs in Gerupuk Bay found 55 species of Mollusks representing three classes, namely the Gastropoda class, with as many as 44 species incorporated in 22 Families; the Bivalve class, as many as ten species contained in 6 Families; and the Scaphopoda class, with as many as one types incorporated in 1 Family. The composition of Mollusca classes found on the Gerupuk Bay Coast is Gastropoda class at 62%, Bivalve class at 35%, and Scaphopoda class at as much as 3%. Mollusca diversity is calculated using the Shannon-Wienner diversity index (H'). The diversity index results ranged from 2.890-1.998, with moderate categories at all stations. Bioindicators of water quality using the diversity index show that stations I and III categorize the Gerupuk Bay area as lightly polluted. In contrast, at station II, it is moderately polluted.

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Section: Figure 3 Mollusca Diversity Index Valuementioning

confidence: 99%

Mollusca Biodiversity as A Quality Bioindicator Waters in Central Lombok Gerupuk Bay Coastal Area

Berliana,

Candri,

Ahyadi

2024

J. Pijar.MIPA

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Existing Conditions of Gastropod Communities in Areas Affected by Nickel Mining Overburden in the Mangrove Ecosystem of Dawi-Dawi, Southeast Sulawesi

Fajar Purnama,

Prayitno,

Muskananfola

et al. 2024

BIOTROPIA

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ARTICLE HIGLIGHTS- Nickel mining activities significantly impacted the ecological integrity of the Pomalaa coastal area in Southeast Sulawesi, particularly in the mangrove ecosystem.- The exposure of overburden waste in the mangrove ecosystem has led to the loss of important gastropod species and a decline in population of surviving species- The low population of gastropod species in nickel mining impact areas indicates extensive environmental damage caused by these activities.ABSTRACTGastropod resources in the Dawi-Dawi mangrove ecosystem, Southeast Sulawesi are greatly influenced by the input of overburden waste (sediment) from nickel mining activities. This condition has been going on for the last 2 decades and has degraded the habitat and structure of the gastropod community. The upstream connectivity (the existing nickel mining area) and the Dawi-Dawi River estuary mean that the mangrove forest (estuary) in this area is continuously affected by (massive) overburden runoff. This research was carried out in June-August in the mangrove ecosystem of Dawi-Dawi Village, Southeast Sulawesi Province. This research aims to determine the existing condition of mangrove gastropods affected by overburden. This research began by conducting initial observations in the field, to identify mangrove ecosystems affected by overburden. research stations were determined using a purposive sampling technique (targeted) and sampling gastropods using a simple random sampling method. The ecological index of the mangrove gastropod community affected by overburden shows a tendency for a medium diversity index (H'=1.81), low species richness (R=1.42), high evenness (E=1.12), and no dominance of certain species (C=0.19). The gastropod species found are typical types that make up the mangrove fauna, namely Terebralia sulcata, Terebralia palustris, Faunus ater, Telescopium telescopium, Hebra nigra, and several taxa (genus) of climbing Littoraria snails (periwinkle) which are found in the roots, stems and leaves of mangroves. The abundance of gastropods obtained was also very low, namely around 0-12 Ind./m2. At some points (rarely) schools of small snails of the type T. sulcata (5-21 Ind./m2) are sometimes found. This research shows de facto that overburden waste eliminates (survival) or reduces the diversity and richness of gastropod species (ecological index) in the mangrove ecosystem of Dawi-Dawi.

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Komparasi Deversitas Moluska Musim Hujan dan Kemarau Di Kawasan Mangrove Luppung, Kabupaten Bulukumba

Cited by 2 publications

References 13 publications

Mollusca Biodiversity as A Quality Bioindicator Waters in Central Lombok Gerupuk Bay Coastal Area

Mollusca Biodiversity as A Quality Bioindicator Waters in Central Lombok Gerupuk Bay Coastal Area

Existing Conditions of Gastropod Communities in Areas Affected by Nickel Mining Overburden in the Mangrove Ecosystem of Dawi-Dawi, Southeast Sulawesi

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