Article Per Year (5 Year)
p-Index From 2020 - 2025
2.338
P-Index
This Author published in this journals
All Journal AQUATIC SCIENCE & MANAGEMENT Media Teknologi Hasil Perikanan Jurnal e-Biomedik JURNAL PESISIR DAN LAUT TROPIS PHARMACON JURNAL ILMIAH PLATAX JURNAL BIOMEDIK JURNAL LPPM BIDANG SAINS DAN TEKNOLOGI Medical Scope Journal (MSJ)
Robert A. Bara
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Medicine & Pharmacology Nursing Public Health

Published : 31 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 31 Documents
Search

 1   2   3   4 
Uji Efek Daya Hambat Jamur Endofit Rimpang Jahe (Zingiber officinale Rosc) terhadap Bakteri Staphylococcus aureus dan Escherichia coli Abdul, Jihan A.; Posangi, Jimmy; Wowor, Pemsi M.; Bara, Robert A.
Jurnal Biomedik : JBM Vol 12, No 2 (2020): JURNAL BIOMEDIK : JBM
Publisher : UNIVERSITAS SAM RATULANGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35790/jbm.12.2.2020.29163

Abstract

Abstract: Ginger rhizome contains antimicrobial compounds of phenol group, flavonoids, terpenoids, and aetheric oil. Endophytic fungi are commonly found in ginger plant Zingiber officinale Rosc. which is widely available in Indonesia. There is a symbiosis between these endophytic fungi and its host plants in a form of genetic material transform, thus these fungi could produce the same active compounds as the host does, or at least involved in the host’s biosynthetic pathway. This study was aimed to determine the inhibitory effect of endophytic fungi isolated from ginger (Zingiber officinale Rosc) against clinical isolates Staphylococcus aureus and Escherichia coli. The endophytic fungi were isolated and their activities were screened. Initial screening of 6 isolates showed that only 3 isolates had relatively strong inhibitory effect against the bacteria. Therefore, they were cultured again, and their extracts were tested against the same types of bacteria. The mean diameters of the inhibition zones against S. aureus were, as follows: 18.7 mm (JJR extract), 11 mm (JJA 1.3 extract), and 17.3 mm (JJA 2.1 extract). Moreover, the mean diameters of the inhibition zone against E. coli were, as follows: 18 mm (JJR extract), 17.3 mm (JJA 1.3 extract), and 23.3 mm (JJA 2.1 extract). In conclusion, endophytic fungi isolated from Zingiber officinale Rosc. had inhibitory effect against S. aureus and E. coli. The inhibitory effect against E. coli was stronger than against S. aureus.Keywords: Zingiber officinale Rosc, endophytic fungi, E. coli, S. aureus Abstrak: Rimpang jahe mengandung senyawa antimikroba fenol, flavonoid, terpenoid, dan minyak atsiri. Jamur endofit sering ditemukan pada tumbuhan jahe Zingiber officinale Rosc, yang tersebar di Indonesia. Terdapat simbiosis antara jamur endofit dan tanaman inang dalam bentuk transformasi materi genetik sehingga jamur tersebut dapat menghasilkan senyawa aktif yang sama, atau setidaknya terlibat dalam jalur biosintesis inang. Penelitian ini bertujuan untuk mengetahui daya hambat jamur endofit yang terdapat pada jahe (Zingiber officinale Rosc) terhadap bakteri Staphylococcus aureus dan Escherichia coli. Jamur endofit diisolasi dan diskrining aktivitasnya. Hasil skrining awal dari 6 isolat yang diperoleh memperlihatkan hanya 3 isolat jamur endofit memiliki daya hambat yang relatif kuat terhadap bakteri uji. Ketiga isolat tersebut dikultur kembali dan ekstraknya diuji aktivitas dengan bakteri yang sama. Hasil pengukuran zona hambat 3 isolat jamur ialah sebagai berikut: pada bakteri Staphylococcus aureus didapatkan jamur JJR 18,7 mm, jamur JJA 1.3 11 mm, dan JJA 2.1 17,3 mm; pada bakteri Escherichia coli didapatkan jamur JJR 18 mm, JJA 1.3 17,3 mm, dan JJA 2.1 23,3 mm. Simpulan penelitian ini ialah jamur endofit isolat dari Zingiber officinale Rosc. memiliki aktivitas antibakteri terhadap S. aureus dan E. coli. Daya hambat jamur endofit lebih besar terhadap E. coli dibandingkan S. aureus.Kata kunci: Zingiber officinale Rosc, jamur endofitik, E. coli, S. aureus
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
Uji Efek Antibakteri Chromodoris annae terhadap Bakteri Staphylococcus aureus dan Escherichia coli Faidiban, Aqueline N.; Posangi, Jimmy; Wowor, Pemsi M.; Bara, Robert A.
Medical Scope Journal Vol 1, No 2 (2020): Medical Scope Journal
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35790/msj.1.2.2020.27847

Abstract

Abstract: This study was aimed to evaluate the antibacterial effect of Chromodoris annae taken from Bunaken waters. This was an experimental study. The antibacterial effect was tested by using the Kirby-Bauer method. Chromodoris annae extract was made by maceration using 95% ethanol and was tested to Staphylococcus aureus and Escherichia coli bacteria. Ciprofloxacin was used as the positive control and aquadest as the negative control. The results showed that the mean inhibition zone diameter of Chromodoris annae extract to Staphylococcus aureus was 22.3 mm meanwhile of ciprofloxacin was 34.7 mm. The mean inhibition zone diameter of Chromodoris annae extract to Escherichia coli was 23.0 mm meanwhile of ciprofloxacin was 40.3 mm. Moreover, aquadest showed no inhibition zone. In conclusion, Chromodoris annae had very strong antibacterial effect to the growths of Staphylococcus aureus and Escherichia coli.Keywords: Chromodoris annae, Staphlococcus aureus, Escherichia coli Abstrak: Penelitian ini bertujuan untuk mengevaluasi efek antibakteri dari Chromodoris annae yang diambil dari perairan Bunaken. Jenis penelitian ialah eksperimental. Pengujian aktivitas antibakteri menggunakan metode Kirby-Bauer. Ekstrak Chromodoris annae dibuat dengan cara maserasi menggunakan pelarut etanol 95% dan diujikan aktivitas antibakteri terhadap bakteri Staphylococcus aureus dan Escherichia coli. Sebagai kontrol positif digunakan antibiotik ciprofloxacin dan sebagai kontrol negatif digunakan akuades. Hasil penelitian memperlihatkan rerata zona hambat ekstrak Chromodoris annae terhadap Staphylococcus aureus sebesar 22,3 mm sedangkan zona hambat ciprofloxacin sebesar 34,7 mm. Rerata zona hambat ekstrak Chromodoris annae terhadap Escherichia coli sebesar 23,0 mm sedangkan zona hambat ciprofloxacin sebesar 40,3 mm. Akuades tidak memperlihatkan adanya zona hambat. Simpulan penelitian ini ialah Chromodoris annae memiliki efek antibakteri kategori sangat kuat terhadap pertumbuhan bakteri Staphylococcus aureus dan Escherichia coli.Kata kunci: Chromodoris annae, Staphylococcus aureus, Escherichia coli
Analisa Proksimat pada Sipunculan (Sipunculus nudus) Segar di Perairan Desa Budo, Minahasa Utara: Proximate Analysis of Fresh Sipunculan (Sipunculus nudus) In The Waters of Budo Village North Minahasa Salawati, Abraham Imanuel; Montolalu, Roike Iwan; Mentang, Feny; Makapedua, Daisy Monica; Sanger, Grace; Bara, Robert A
Media Teknologi Hasil Perikanan Vol 12 No.1 (2024)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/mthp.12.1.2024.53528

Abstract

Natural resources abound in Indonesia, especially for its marine products. Fish and other fisheries products are valuable and commonly utilized commodities. Sipuncula is an additional valuable resource. The peanut worm, or Sipuncula (Sipunculus nudus), is a controversial biota that looks like a worm but is actually a sea cucumber. This study aims to provide information on sipunculan (Sipunculus nudus) and determine the nutritional content of the food in Budo Village. The plan for this investigation is to search at low tide in the sipunculan. 82% moisture content, 0.74% ash content, 12.8% protein, 1.56% fat, and 2.3% carbohydrate were the findings of this experiment. Keywords: Sipunculan, Fresh, Proximate, Budo Village   Indonesia merupakan negara yang kaya akan sumber daya alam, terutama untuk hasil lautnya. Hasil perikanan seperti ikan termasuk dalam komoditi penting yang sering dimanfaatkan. Sumber daya lainnya yang dapat dimanfaatkan yaitu Sipuncula. Sipuncula (Sipunculus nudus) atau cacing kacang merupakan biota kontroversi memiliki bentuk seperti cacing dan juga teripang. Tujuan dari penelitian ini yaitu untuk mengetahui kandungan gizi dari sipunculan yang ada di Desa Budo serta dapat memberikan informasi terhadap kandungan nutrisi sipunculan (Sipunculus nudus). Metode yang digunakan dalam penelitian ini yaitu sipunculan dicari pada saat air surut. Hasil penelitian yang didapatkan dalam penelitian ini kadar air 82%, kadar abu 0,74%, Protein 12,8%, Lemak 1,56% dan Karbohidrat 2,3%. Kata kunci: Sipunculan, segar, Proksimat, Desa Budo
Isolation and Screening the Symbiont Bacteria of the Sponge Dragmacidon sp from Manado Bay, North Sulawesi that Producing Chitinase and Protease Sembiring, Sindiy Cloudya; Warouw, Veibe; Wullur, Stenly; Bara, Robert A; Salaki, Meiske S.; Ginting, Elvy Like
Jurnal Ilmiah Platax Vol. 9 No. 1 (2021): ISSUE JANUARY - JUNE 2021
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.9.1.2021.34307

Abstract

Enzymes are important in the technology industry and hydrolytic enzymes, such as chitinase and protease are commonly used for it. Various types of microorganisms such as bacteria can produce hydrolytic enzymes.  Sponge-associated bacteria are excellent sources of extracellular hydrolytic enzymes because the surface and internal spaces of sponges are richer in nutrients. The aim of this study was to isolate and screen the bacteria of the sponge Dragmacidon sp symbiotic from Manado Bay, North Sulawesi that producing chitinase and protease   Symbiont bacteria were grown in Zobell 1226 E medium with a dilution of 10-4. Bacterial isolation was carried out based on the morphological characteristics of the colony. Chitinase and protease activity was carried out by growing each bacterial isolate in chitin and protein media at 36oC for 48 hours. Chitinase and protease activities were indicated by the formation of a clear zone around the bacterial colony, however, the clear zone for chitinase activity was observed after pouring the Lugol's solution. Based on this study, 8 isolates bacteria of the symbiotic spongy Dragmacidon sp from Manado Bay, North Sulawesi were isolated based on morphological characteristics. The colony of the bacteria is generally white with an irregular shape. Four isolates, namely 1, 2, 3, and 8 had chitinase activity with chitinolytic indexes were 1.7; 1.5; 1.4, and 1.3, respectively. Six isolates, namely 1, 2, 3, 4, 5, and 6 had protease activity with proteolytic indexes were 1.4; 1.8; 3.1; 1.3; 1.8; and 2.5, respectively.Keywords: Bacteria; Chitinolytic; Proteolytic; Symbiont; SpongeAbstrakEnzim menempati posisi penting dalam bidang teknologi dan industri. Enzim yang banyak digunakan dalam bidang industri adalah enzim hidrolase. Enzim dapat diisolasi dari berbagai jenis mikroorganisme seperti bakteri. Bakteri yang berasosiasi dengan spons merupakan sumber enzim hidrolitik ekstraseluler yang sangat baik karena permukaan dan ruang internal spons lebih kaya nutrisi. Penelitian ini bertujuan untuk mengisolasi dan menguji aktivitas kitinase dan protease bakteri simbion spons Dragmacidon sp dari Teluk Manado. Bakteri simbion spons ditumbuhkan dalam media Zobell 1226 E pada pengenceran 10-4. Isolasi bakteri dilaksanakan berdasakan karakteristik morfologi. Aktivitas kitinase dan protease dilaksanakan dengan menumbuhkan setiap isolat bakteri dalam media kitin dan protein pada suhu 36oC selama 48 jam. Aktivitas kitinase dan protease ditandai dengan terbentuknya zona bening di sekitar koloni bakteri yang mana untuk kitinase diamati setelah diberi larutan lugol. Berdasarkan penelitian ini, 8 isolat bakeri simbion spon Dragmacidon sp dari Teluk Manado, Sulawesi Utara berhasil diisolasi berdasarkan karakteristik morfologi. Isolat bakteri umumnya berwarna putih dengan bentuk ireguller. Empat isolat yakni 1, 2, 3, dan 8 memiliki aktivitas kitinase dan enam isolat yakni 1, 2, 3, 4, 5, dan 6 yang memiliki aktivitas protease. Indeks kitinolitik dari masing-masing keempat isolat bakteri secara berturut turut adalah 1,7; 1,5; 1,4; dan 1,3 dengan kategori bernilai rendah dan indeks proteolitik adalah 1,4; 1,8; 3,1; 1,3; 1,8; dan 2,5 dengan kategori bernilai rendah sampai tinggi.Kata kunci: Bakteri; Kitinolitik; Proteolitik; Simbion; Spons
Analysis Of Types Of Carotenoid Pigments In Crab Sesarmops sp From Manado By Coast Adrian, Melinda Margareta; Paransa, Darus S. J; Paulus, James J. H; Kawung, Nickson J.; Bara, Robert A.; Kepel, Rene Ch.
Jurnal Ilmiah Platax Vol. 9 No. 2 (2021): ISSUE JULY-DECEMBER 2021
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.9.2.2021.35127

Abstract

Carotenoid pigments are a group of pigments that are yellow, orange, and red-orange in color. Pigments are natural dyes found in plants and animals, extracts of carotenoid pigments can be separated by chromatographic methods where the common chromatographic methods in determining the type of pigment are Column Chromatography (CC) and Thin Layer Chromatography (TLC). The purpose of this study was to determine the types of pigments contained in the carapace extract of the male crab Sesarmops sp. The Sesarmops sp crab has a brown dorsal carapace with blackish-brown leg spots known as mangrove crabs. Crabs in the Sesarmidae family have a carapace formation and wide legs, do not have swimming legs, and have a pair of claws that are faded purple, the presence of these colors can be identified as containing carotenoid pigments. The results of this study obtained the content of carotenoid pigment 25.2 g/gr and the value of the concentration of carotenoid pigment in the male crab extract Sesarmops sp 10.99 g. The results of the separation of the total pigment extract using column chromatography obtained the types of pigments -carotene, Ekinenon, Zeaxanthin, and Astaxanthin. Keywords: Column Chromatography (CC); Carotenoids; Sesarmops sp                                                                       AbstrakPigmen karotenoid adalah sekelompok pigmen yang berwarna kuning, oranye dan merah oranye. Pigmen adalah zat warna alami yang terdapat pada tumbuhan  dan hewan, ekstrak pigmen karotenoid dapat dipisahkan dengan metode kromatografi yang dimana metode kromatografi umum dalam menentukan jenis pigmen adalah Kromatografi Kolom (KK) dan Kromatografi Lapis Tipis (KLT). Tujuan dari penelitian ini untuk mengetahui jenis-jenis pigmen apa saja yang terdapar pada ekstrak karapas kepiting jantan Sesarmops sp. Kepiting Sesarmops sp memiliki karapas dorsal bewarna coklat dengan bintik kaki coklat kehitaman yang dikenal sebagai kepiting mangrove. Kepiting dalam keluarga sesarmidae memiliki bentukan karapas dan kaki yang lebar tidak memiliki kaki renang serta memiliki sepasang capit berwarna ungu pudar, adanya warna tersebut kepiting dapat diidentikasikan mengandung jenis pigmen karotenoid.  Dari hasil penelitian ini mendapatkan kandungan pigmen karotenoid 25,2 dan nilai konsentrasi pigmen karotenoid pada ekstrak kepiting jantan Sesarmops sp 10,99 . Hasil pemisahan dari ekstrak pigmen total menggunakan kromatografi kolom didapatkan jenis pigmen β-karoten, Ekinenon, Zeaxantin dan Astaxantin
Antibacterial Activity of Stylissa carteri Sponge Extract from Manado Bay, North Sulawesi Palungan, Irpan; Bara, Robert Antonius; Mangindaan, Remy Emile Petrus; Kemer, Kurniati; Wullur, Stenly; Rembet, Unstain N. W. J.
Jurnal Ilmiah Platax Vol. 10 No. 1 (2022): ISSUE JANUARY-JUNE 2022
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v10i1.36020

Abstract

Marine sponges contain secondary metabolites with unique chemical structures and very interesting pharmacological activities, such as antibacterial, anticancer, antiviral and others to be developed as candidate drugs. The presence of bioactive metabolites in sessile nature such as sponges also reflects the ecological adaptation formed during a long evolutionary process as a defense mechanism of this organism with its environment in the form of resistance to predation, competition and infection factors against pathogenic bacteria, so this study aims to examine the antibacterial activity of extracts and fractions of Stylissa carteri sponge fractions as well as testing the Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) values. The method used in testing the antibacterial activity is the agar diffusion method (Disc Diffusion Kirby Bauer Method). The presence of antibacterial activity was indicated by the formation of a clear zone around the paper disc after incubation for 24 hours. The results showed that antibacterial activity of S. carteri sponge extract tested on Bacillus megaterium DSM32T bacteria revealed to be the strongest inhibition zone of 21 mm. Further testing on the extract fraction of S. carteri showed that the semipolar fractions showed strong activity against the B. megaterium while the polar fraction was categorized as moderate action, the non-polar fraction showed no activity against the bacteria. The determination of the MIC and MBC values was obtained at 500 ppm and 1000 ppm respectively.
Morphology and Morfometric Study of Crabs Species Caught on the Coast of Mokupa, Minahasa District, North Sulawesi Pelafu, Widya; Paransa, Darus Saadah J.; Mantiri, Desy M. H; Kemer, Kurniati; Bara, Robert A.; Batarogoa, Nego E.
Jurnal Ilmiah Platax Vol. 10 No. 2 (2022): ISSUE JULY-DECEMBER 2022
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v10i2.42283

Abstract

Crabs are organisms that have been found moving actively in tidal areas. One is in the coastal area of Mokupa, Whare the study boasts a great diversity of poorly informed crabs. this study aims to identify the morphology and diversity of crab species during the full moon and late nephew phase. The location for sampling is on the coast of Mokupa Beach, Minahasa Regency, North Sulawesi.  This research was conducted using the roaming method and captured directly at night at the lowest low tide based on the phases of the full moon and late nephew. Furthermore, the collected crabs were identified by morphology, body length, body color, carapace shape, pair of claws, walking legs, and abdomen, and morphometric calculations were performed. Based on the morphological identification found, namely: Thalamita crenata, Geograpsus crinipes, Selatium brocki, and Sesarmops impressus.Keywords: Coastal beaches, Morphology, Crab type. AbstrakKepiting merupakan organisme yang ditemukan bergerak aktif di daerah pasang surut. Salah satunya di daerah pesisir Pantai Mokupa, lokasi ini memiliki banyak keanekaragaan jenis kepiting yang belum terinfomasi dengan baik. Penelitian ini bertujuan mengidentifikasi morfologi dan keanekaragaman jenis kepiting saat fase bulan purnama dan perbani akhir. Lokasi penangkapan sampel di pesisir Pantai Mokupa, Kabupaten Minahasa.Sulawesi Utara, dilakukan mengunakan metode jelajah dan ditangkap langsung pada ­waktu malam hari saat surut terendah berdasarkan fase bulan purnama dan perbani akhir. Selanjutnya, kepiting yang yang terkumpul diidentifikasi morfologi diamati ukuran panjang tubuh, warna tubuh, bentuk karapas, sepasang capit, kaki jalan dan abdomen, serta dilakukan perhitungan morfometrik. Berdasarkan identifikasi morfologi ditemukan, yaitu: Thalamita crenata, Geograpsus crinipes, Selatium brocki dan Sesarmops impressus. Kata  kunci: Pesisir pantai,  Morfologi, Jenis kepiting.
Estimation of Carbon Stock in Mangrove Communities in Budo Village, Wori District, North Minahasa Regency Ruru, Ricky Andreas; Rumengan, Antonius Petrus; Paransa, Darus Sa'adah Johanis; Paruntu, Carolus Paulus; Bara, Robert Antonius; Rondonuwu, Ari B.
Jurnal Ilmiah Platax Vol. 11 No. 1 (2023): ISSUE JANUARY-JUNE 2023
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v11i1.43629

Abstract

Mangrove is an ecosystem consisting of a collection of trees and grows in the area around the coastline, living in conditions influenced by tides, muddy and sandy sediments. Has an important function in the effort to absorb carbon levels through the photosynthesis process which is better than other forest vegetation. The purpose of this study, namely to identify mangrove species, examine vegetation and determine the value of biomass and estimated carbon stock in Budo Village, Wori District, North Minahasa Regency, North Sulawesi. Data collection in this study used the line transect method with the transect position being on the left, middle and right of the mangrove ecosystem of Budo Village which was pulled along 100 meters per transect, then the quadrants were measured 10 m x 10 m using raffia rope to limit each quadrant with an interval of 10 m. m and the distance between transects is about 50 m. Based on the results of the study, found 4 types of mangroves, namely: Rhizophora mucronata, Rhizophora apiculata, Sonneratia alba, and Bruguiera gymnorrhyza. The highest density values and relative density of species were on transect 3 with a value of 900 trees/ha and 86.53% by Rhizophora apiculata. The species frequency and relative species frequency were highest in each transect owned by Rhizophora apiculata with values of 0.8 and 55.66%, respectively. The highest species cover was Rhizophora apiculata with a value of 2.56 cm/m with a relative species cover of 72.21%. The highest important value index was Rhizophora apiculata on transect 3 with a value of 214.31%. The highest biomass content was on transect 3 with a value of 592.27 tons/ha. The highest carbon content is on transect 3 with a value of 55.67 tons/ha.
Comparative Studies Of Residual Water Level In Manado And Melonguane Coastal Area During Tropical Cyclone In 2021 Azani, Audia Azizah; Djamaluddin, Rignolda; Bara, Robert A; Manu, Lusia; Dien, Heffry Veibert; Manembu, Indri Shelovita
Jurnal Ilmiah Platax Vol. 12 No. 1 (2024): ISSUE JANUARY-JUNE 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i1.53167

Abstract

North Sulawesi Province, directly bordering the Pacific Ocean, is located in an area with the highest level of tropical cyclone (TC) activity in the world. As a result, the province is vulnerable to the impacts caused by cyclones, including storm surges. The increase in water levels due to this event has the potential to cause coastal flooding. Previous studies in Manado have identified that sea level rise can be detected through residual water level (RWL), making studying the characteristics of RWL in North Sulawesi important. This research focuses on Manado and Melonguane, allowing for a comparison of characteristics. The data used includes tropical cyclone data from the China Meteorological Administration (CMA) and tidal data from the Geospatial Information Agency. The Unified Tidal Analysis and Prediction (UTide) method is used to identify RWL. The analysis was carried out by using a t-test to compare data at the two locations. The results showed that RWL at those locations had significant differences with Melonguane having the higher value between them. Generally, the increase in RWL in Melonguane occurs shortly after the cyclone period, while the RWL in Manado maximum increases 86 hours after TC's first occurrence. Keywords: tropical cyclone; residual water level; UTide.
Co-Authors Abdul, Jihan A. Adrian, Melinda Margareta Alfret Luasunaung Angeline Ngantung, Angeline Angmalisang, Ping 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 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. Pratasik, Silvester 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 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