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Inventory of Echinodermata in Lendang Luar Beach, North Lombok District Dewi, Saskia Septina; zahara, asha aulia; aulia, nurul waroatul; nurulfadilah; riandinata, selamet kurniawan; Candri, Dining Aidil; Ahyadi, Hilman
Samota Journal of Biological Sciences Vol 3 No 2 (2024): Samota Journal of Biological Sciences
Publisher : University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/sjbios.v3i2.4962

Abstract

Echinoderms are one of the main components of marine biodiversity that play an important role in ecosystem function, especially as aquatic detritus. The purpose of this study was to determine the species of Echinoderms found in Lendang Luar Beach, North Lombok District. The study was conducted in July 2022 using the purposive sampling and free sample collection. Based on the research results, found 12 species from 6 families, namely Deadematidae (Diadema setosum, Echinothrix calamaris, and Echinothrix diadema), Echinometridae (Echinometra oblonga and Heliocidaris crassispina), Holothuriidae (Holothuria tubulosa), Ophiocomidae (Ophiomastix annulosa, Ophiocoma erinaceus, Ophiocoma pusilla, and Ophiocoma scolopendrina), Ophiothrichidae (Macrophiothrix longipeda), and Toxopneustidae (Tripneustus gratilla). O. Annulosa, M. longipeda, and T. gratilla species were found in all stations. M. longipeda had the highest number of individuals. T. gratilla has the most extensive microhabitat because it is found in all types of existing microhabitats.
PHYTOCHEMICAL SCREENING AND ANTIBACTERIAL ACTIVITY OF SOFT CORAL Nephthea sp. EXTRACT ISOLATED AGAINST Escherichia coli Setyaningrum, Tri Wahyu; Nurulfadilah; Candri, Dining Aidil; Dharmayani, Ni Komang Tri; Ghazali, Mursal; Faturrahman
BIOMA : Jurnal Ilmiah Biologi Vol. 15 No. 1 (2026): April 2026
Publisher : Prodi Pendidikan Biologi, FPMIPATI, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/bioma.v15i1.3070

Abstract

This study aimed to evaluate the antibacterial potential of Nephthea sp. extract against Escherichia coli and to analyze the phytochemical constituents present in Nephthea sp. using various solvents. The extraction process was carried out using the maceration method with three different solvents: n-hexane, ethyl acetate, and methanol. The resulting extracts were analyzed through phytochemical screening and antibacterial activity assays. The results showed that Nephthea sp. extract contained several classes of bioactive metabolites, including alkaloids, flavonoids, triterpenoids, steroids, tannins, and saponins. Antibacterial testing demonstrated that the ethyl acetate extract produced the largest inhibition zone, measuring 3.16 mm. Based on the ANOVA test results, the 25% concentration showed a significant effect on the inhibition zone. Based on phytochemical analysis, the ethyl acetate extract contained triterpenoid compounds, whereas the other solvents did not