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Robert A. Bara
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Medicine & Pharmacology Nursing Public Health

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Journal : AQUATIC SCIENCE

 1 
Antibacterial substances of sponges, Agelas tubulata and Phyllospongia sp., from Manado Bay, against the growth of several bacterial strains Undap, Nani I.J; Sumilat, Deiske A; Bara, Robert
AQUATIC SCIENCE & MANAGEMENT Vol 5, No 1 (2017): APRIL
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jasm.5.1.2017.24253

Abstract

Title (Bahasa Indonesia): Senyawa antibakteri spons, Agelas tubulata dan Phyllospongia sp., dari Perairan Teluk Manado, terhadap pertumbuhan beberapa strain bakteri Agelas tubulataand Phyllospongiasp. are marine spongethat contain active compoundsthat have potential to beantibacterial, anticancer and antifungal which have not been used. This study was aimed to examine the sponge extracts which inhibitbacterial growth, i.e. Pseudomonas aeruginosa, Proteus mirabilis, Staphylococcus aureus, Escherichia coli, S. saprophyticus andtoanalyze the active fraction of the antibacterial component using bio-autographic method. Agelas tubulataand Phyllospongiasp. were collected from Manado Bayand method used in the study was Agar Diffusion Method. Results showed that A. tubulataand Phyllospongiasp. extract had antibacterial activity against all 5 bacteria tested. A. tubulataextract had inhibition zone withbroader spectrum than that of Phyllospongiasp. extract, while Phyllospongiasp. has specifity forP. mirabilis.Agelas tubulata danPhyllospongia sp. merupakan spesies spons laut yang mengandung senyawa aktif yang berpotensi antibakteri, antikanker dan antijamur yang belum banyak dimanfaatkan. Penelitian ini bertujuan untuk menguji ekstrak spons laut yang menghambat pertumbuhan 5 bakteri yaitu Pseudomonas aeruginosa, Proteus mirabilis, Staphylococcus aureus, Eschericia colidan Staphylococcus saprophyticus dan menganalisis fraksi aktif antibakteri melalui teknik bioautografi. Spesies spons laut A. tubulata dan Phyllospongiasp. diambil dari Perairan Pantai Malalayang Manado. Metode yang digunakan yaitu metode difusi agar. Hasil dari penelitian ini, yaitu ekstrak A. tubulatadan Phyllospongiasp. mempunyai aktivitas terhadap 5 bakteri uji. EkstrakA. tubulatamemiliki daya hambat dengan spektrum yang lebih luas dibandingkan ekstrak Phyllospongiasp.sedangkanekstrak Phyllospongia sp.memiliki spesifitas terhadap bakteri P. mirabilis.
The relationship between El Niño Southern Oscillation (ENSO) and oceanographic parameters in North Sulawesi waters Lasut, Astrid Y.; Patty, Wilhelmina; Warouw, Veibe; Sondakh, Calvyn A.; Bara, Robert A.; Luasunaung, Alfret; Sumilat, Deiske A.
AQUATIC SCIENCE & MANAGEMENT Vol 9, No 1 (2021): APRIL
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jasm.9.1.2021.32494

Abstract

Information about oceanographic conditions is important to determine the fertility level of waters. Oceanographic parameters in water can be influenced by global climate factors, one of them is the ENSO (El Niño Southern Oscillation) phenomenon. There have been many studies on the effect of ENSO phenomenon on oceanographic variability, but no studies have been carried out in the waters of North Sulawesi. This study aims to determine the effect of the ENSO phenomenon on the variability distribution of oceanographic parameters in North Sulawesi waters. The data used for this study were Sea Surface Temperature (SST) and chlorophyll-a from the AQUA-MODIS imaging results, wind reanalysis results from ECMWF, and Nino 3.4 index as an indicator of ENSO from NOAA. The data were processed and analyzed using quantitative analysis methods in the form of graphics. The results showed an indirect effect of the ENSO phenomenon on SST parameters and chlorophyll-a. This is because the effect of the ENSO phenomenon occurred in a certain period:  when strong El Niño triggered low temperatures of sea surface and high chlorophyll-a, and when La Niña was strong it triggered high temperatures of sea surface and low chlorophyll-a. Meanwhile, the wind speed pattern showed an insignificant effect because the wind speed was still dominated by the influence of the monsoon pattern.Indonesian title: Hubungan antara El Niño Southern Oscillation (ENSO) dan parameter oseanografi di perairan Sulawesi Utara
Co-Authors Abdul, Jihan A. Adrian, Melinda Margareta Alfret Luasunaung Angeline Ngantung, Angeline Angmalisang, Ping Angmalisang, Ping Astony Antonius R.B. Ola Ari B. Rondonuwu Azani, Audia Azizah Batarogoa, Nego E. Calvyn F. A. Sondak, Calvyn F. A. Carolus Paulus Paruntu Daisy Monica Makapedua Darus S. Paransa Deiske Adeliene Sumilat, Deiske Adeliene Dien, Heffry Veibert Dwilestari . Edward Nangoy, Edward Faidiban, Aqueline N. Feny Mentang Fitje Losung Frengki P. Menggelea Ginting, Elvy Like Grace Debbie Kandou Grace Sanger, Grace Grevo S Gerung Henoch Awaloei Hidayat, Andre Alfian Indri Manembu Jimmy Posangi Joshian N.W. Schaduw Kepel, Rene Ch. Kipimbob, Eflentina Kurniati Kemer Lasut, Astrid Y. Lintang, Rosita AJ Mangindaan, Remy Mangindaan, Remy Emile Petrus Mantiri, Desy M. H Manu, Lusia Mona P. Wowor Nawea, Yohanis Ni Luh G.L. Jayalandri, Ni Luh G.L. Nickson J. Kawung, Nickson J. O. Mona Wowor Opa, Samuel Palungan, Irpan Pangouw, Excel Paransa, Darus Sa'adah Johanis Paransa, Darus Saadah J. Paulus, James J. H Pelafu, Widya Pelle, Wilmy Pemsi M. Wowor, Pemsi M. Putri, Vita A.D Ramadan, Febrian Rampengan, Royke Rignolda Djamaluddin Roike Iwan Montolalu Rompas, Rizald Rumengan, Antonius Petrus Ruru, Ricky Andreas Salaki, Meiske S. Salawati, Abraham Imanuel Sanadi, Troy Sandra Tilaar Sembiring, Sindiy Cloudya Sihombing, Frengky Silvester B Pratasik Stenly Wullur Tambunan, Citra Tansil, Alberta Y.M. Titi L. Faraknimella, Titi L. Undap, Nani I.J Unstain N. W. J. Rembet, Unstain N. W. J. Veibe Warouw Vivi P. Santoso Widya Astuty Lolo, Widya Astuty Wilhelmina Patty Yolanda A. Kasi