Natalie D.C. Rumampuk
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Journal : JURNAL PESISIR DAN LAUT TROPIS

AKTIVITAS ANTIBAKTERI DAN ANTI-UV BEBERAPA ASCIDIAN DARI PERAIRAN PANGALISANG BUNAKEN Yuliana Macpal; Veibe Warouw; Deiske A Sumilat; James J.H. Paulus; Natalie D.C. Rumampuk; Reni L. Kreckhoff
JURNAL PESISIR DAN LAUT TROPIS Vol. 7 No. 3 (2019): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.7.3.2019.26019

Abstract

Ascidians are sesile marine invertebrates that have bioactive compounds such as antibacterial and anti-UV. The purpose of this study is to determine the antibacterial activity against Escherichia coli and Staphylococcus aureus bacteria and to test the anti-UV activity of the ascidian water fraction. Antibacterial activity test was carried out using the diffusion method (disc diffusion Kirby & Bauer) and the water fraction of ascidian that showing antibacterial activity tested in a UV spectrophotometer to see the anti-UV activity. Results of the study were obtained 4 types of ascidians extracted from partitioned into water fraction, n-hexane fraction, methanol fraction. All three fractions were tested for antibacterial activity and the result showed that there were antibacterial activities of ascidian extract Clavelina sp. against both test bacteria with inhibition of S. aureus and E. coli with strong categories. Ascidian Phlebobranch sp. showed the presence of antibacterial activity with inhibition of S. aureus and E. coli with very strong categories (16,6 mm). extract Eudistoma sp. showed the presence of antibacterial activity with inhibition S. aureus and E. coli in the medium category (9 mm). The water fraction found active in antibacterial testing is then tested using a UV spectrophotometer for anti UV testing, the result show that water fraction of the four ascidians can absorb UV-B (290-320nm) and UV-A ( 320-400nm).Keywords : Ascidian, Antibacterial, Partition, Anti- UV.
Density of Sea Urchin Species (Echinoidea) in The Intertidal Zone of Taruan and Gemeh Subdistricts of Gemeh, Talaud Islands Regency Ronald F. Tegi; Erly Kaligis; Deislie R.H. Kumampung; Natalie D.C. Rumampuk; Farnis Boneka; Billy Th. Wagey
JURNAL PESISIR DAN LAUT TROPIS Vol. 13 No. 3 (2025): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.13.3b.2025.64776

Abstract

Sea urchins (Echinoidea) are important organisms in intertidal areas that contribute to maintaining the balance of the coastal marine environment. This study aims to identify the level of diversity, population density, and dominance of sea urchin species found in the intertidal zone of Taruan Village and Gemeh Village, Talaud Islands Regency. Data were collected using the 1 × 1 meter belt transect method in the two locations. The results showed that Taruan Village had more species, namely seven species, compared to Gemeh Village which only had four species. The highest density value was recorded in Taruan at 10.5 ind/m², while in Gemeh it was 6.2 ind/m². The diversity index (H') was in the range of 1.220 to 1.662 and belonged to the medium category, while the dominance index (C) value ranged from 0.230 to 0.324, indicating the absence of a significantly dominating species. Environmental parameters such as salinity, temperature, and pH in both locations are within the range that supports the survival of sea urchins. The results of this study should serve as an initial reference for efforts to conserve and manage sustainable marine resources in the Talaud Island region. Keywords:. sea urchins diversity, density, dominance, Talaud   Abstrak                                          Bulu babi (Echinoidea) merupakan organisme penting di kawasan intertidal yang berkontribusi dalam menjaga keseimbangan lingkungan laut pesisir. Penelitian ini bertujuan untuk menganalisis tingkat keanekaragaman, kepadatan populasi, dan dominansi spesies bulu babi yang terdapat di zona intertidal Desa Taruan dan Desa Gemeh, Kabupaten Kepulauan Talaud. Pengambilan data dilakukan menggunakan metode belt transek berukuran 1×1 meter di dua lokasi tersebut. Hasil pengamatan menunjukkan bahwa Desa Taruan memiliki jumlah spesies lebih banyak, yaitu tujuh spesies, dibandingkan Desa Gemeh yang hanya memiliki empat spesies. Nilai kepadatan tertinggi tercatat di Taruan sebesar 10,5 ind/m², sedangkan di Gemeh sebesar 6,2 ind/m². Indeks keanekaragaman (H') berada pada kisaran 1,220 hingga 1,662 dan tergolong dalam kategori sedang, sedangkan nilai indeks dominansi (C) berkisar antara 0,230 hingga 0,324, yang mengindikasikan tidak adanya spesies yang mendominasi secara signifikan. Parameter lingkungan seperti salinitas, suhu, dan pH di kedua lokasi berada dalam kisaran yang mendukung kelangsungan hidup bulu babi. hasil penelitian ini seharusnya dapat menjadi referensi awal dalam upaya pelestarian dan pengelolaan sumber daya laut yang berkelanjutan di wilayah Kepulauan Talaud. Kata kunci: bulu babi, keanekaragaman, kepadatan, dominansi, Talaud