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All Journal AKULTURASI (JURNAL ILMIAH AGROBISNIS PERIKANAN) AQUATIC SCIENCE & MANAGEMENT e-Journal BUDIDAYA PERAIRAN JURNAL ILMIAH PLATAX JURNAL PERIKANAN DAN KELAUTAN TROPIS
Edwin D Ngangi
Sam Ratulangi University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Environmental Science

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Karakterisasi lingkungan perairan Teluk Talengen Kabupaten Kepulauan Sangihe sebagai kawasan budidaya rumput laut Kappaphycus alvarezii Schaduw, Joshian N.W.; Ngangi, Edwin
e-Journal BUDIDAYA PERAIRAN Vol 3, No 2 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.3.2.2015.8458

Abstract

This paper was the result of a feasibility analysis of Talengen Bay Waters for aquaculture of Kappaphycus alvarezii. Feasibility analysis of water was based on the environmental data and water quality parameters of Talengen Bay. One mistake in the development of aquaculture is environmentally unsuitable. In order to develop aquaculture properly, appropriate water conditions data were required. Suitable aquatic environments are required by organisms for their survival because they are related to the patterns and behavior of the biota. In connection with the problems of mariculture at Talengen Bay, several efforts were required to overcome them. One of the efforts was made through this study that was assessment of appropriate location for the cultivation of seaweed. Talengen Gulf was located in  in the territory of Kampung  Talengen and  Kampung Bunga Lawang, Central District of Tabukan, Sangihe Islands Regency, North Sulawesi. Laboratory analysis was conducted at the Laboratory of Industrial Baristand Manado. Determination of research stations done intentionally (purposive sampling). Based on the results obtained it could then be concluded that the condition of the aquatic environment and water quality parameters in the Talengen Bay were categorized as suitable for seaweed cultivation K. alvarezii. Phosphate, nitrate, Total Suspended Solid data were needed to be considered. Keywords: Environmental characteristics, seaweed, aquaculture; Kappaphycus alvarezii
Analisis kelayakan lahan budi daya rumput laut (Ulva sp.) pada lokasi rencana pengembangan North Sulawesi Marine Education Center di Likupang Timur Edy, Selvanus; Ngangi, Edwin L. A.; Mudeng, Joppy D.
e-Journal BUDIDAYA PERAIRAN Vol 5, No 3 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.5.3.2017.17814

Abstract

The purpose of this research was to know and evaluate the condition of aquatic environment and water quality parameters for cultivation of seaweed Ulva sp. This research was conducted on North Sulawesi Marine Education Center (NSMEC). NSMEC is planned to be built at Marine Field Station FPIK UNSRAT located in Likupang Timur Kabupaten Minahasa Utara. The waters of NSMEC development area are geographically located at 1040.437 'LU and 12504.499' BT. The determination of 4 stations was done by purposive sampling which was considered to represent the condition of waters. Coordinate stations were recorded with GPS help. The data were collected for 14 days every 6:00 pm, at 12:00 pm and 17:00 pm. The observation of environmental conditions was carried out for protection factor and substrate of water base, while water quality parameter measured in situ included depth, brightness, temperature, dissolved oxygen (DO) salinity, pH and current velocity. Phosphate, nitrate and total suspended solid (TSS) were measured. Tide measurements were measured every hour for 24 hours. Data analysis used conformity matrices that included scores and weights for the determination of conformity classes. Class suitability was used to describe the suitability of seaweed. The results showed that the waters of the NSMEC development zone were in class S1 meaning very suitable for seaweed cultivation location. The analysis results of each station found that 4 stations were very suitable. As conclusion, water environment and water quality parameters of the waters of North Sulawesi Marine Education Center development area located at Marine Field Station FPIK UNSRAT were categorized as very suitable for seaweed cultivation, Ulva sp.Keywords: Ulva sp., feasibility analysis, water quality, location suitability
Land suitability of seaweed farming in Minahasa Regency, North Sulawesi Province Schaduw, Joshian N. W; Ngangi, Edwin L. A; Mudeng, Joppy D
AQUATIC SCIENCE & MANAGEMENT Vol 1, No 1 (2013): April
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jasm.1.1.2013.1972

Abstract

The success of seaweed cultivation is determined from the determination of the location. This is because the production and quality seaweed influenced by ecological factors including the condition of the substrate surface waters, water quality, climate, geographical bottom waters. Arakan villages in the District of South Minahasa regency become one of the centers of seaweed cultivation in the province of North Sulawesi. The specific objective of this study was obtained in the form of a map of suitability mapping seaweed cultivation areas; gathering data and information about the extent of the area, water capacity, area unit, and carrying water. The study was conducted in the waters of the village of Arakan, District Tatapaan, South Minahasa regency, North Sulawesi. When phase 3 study conducted every month from June to December in 2012. The analysis is based on space availability, suitability waters that support the cultivation of seaweed. Suitability space spatially waters using physical and chemical parameters of waters which is a prerequisite eligibility seaweed cultivation. Spatial observations by using a Geographic Information System (GIS) for the weights and scores in determining the suitability of land. Process is done through the preparation of spatial database and
Effect of NPK ferlilizer (nitrogen, phosphorus, potassium) on seaweed, Kappaphycus alvarezii, growth and white spot desease prevention Ismail, Ramli A.; Ngangi, Edwin L.A.; Lasut, Markus T.
AQUATIC SCIENCE & MANAGEMENT Vol 2, No 1 (2014): April
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jasm.2.1.2014.12389

Abstract

Title (Bahasa Indonesia): Pengaruh pupuk NPK [nitrogen, fosfor, kalium] terhadap pertumbuhan dan penanggulangan penyakit ‘white spot’ pada rumput laut Kappaphycus alvarezii This study aimed to analyze the effect of NPK fertilizer absorption on the growth of seaweed, Kappaphycus alvarezii, and the white spot disease prevention. This study could become a source of information for seaweed farmers to increase seaweed production through the use of NPK fertilizers. This study was conducted from January until March, 2014 in the waters of Toropot Village, the District of Bokan Islands, Banggai Laut. To know whether the different doses affect the white spot infection, ANOVA with Tukey's test was used. Results showed that all doses had the same potential to recover from white spot disease and heal faster than the control (no dose). The addition of nutrients N, P, and K at high dose could accelerate the recovery of the algae from white spot desease and increase the growth rate. Penelitian ini bertujuan untuk menganalisis pengaruh penyerapan pupuk NPK terhadap pertumbuhan dan penanggulangan penyakit white spot pada rumput laut Kappaphycus alvarezii. Penelitian ini dapat sebagai sumber informasi bagi pembudidaya rumput laut untuk meningkatkan produksi rumput laut melalui penggunaan pupuk NPK. Penelitian ini dilaksanakan mulai Januari sampai Maret 2014 di perairan Desa Toropot, Kecamatan Bokan Kepulauan, Kabupaten Banggai Laut. Untuk mengetahui apakah perbedaan dosis memberikan pengaruh terhadap serangan white spot, maka dilakukan pengujian ANOVA dengan uji Tukey. Hasil menunjukkan bahwa bahwa semua dosis memiliki potensi yang sama untuk memulihkan penyakit white spot dan lebih cepat penyembuhannya dari kontrol (tanpa dosis). Penambahan nutrien N, P dan K pada dosis tinggi dapat mempercepat pemulihan alga dari penyakit white spot dan dapat meningkatkan laju pertumbuhannya.
MANFAAT LANGSUNG TERUMBU KARANG DI DESA TUMBAK KABUPATEN MINAHASA TENGGARA Sembiring, Ingrid; Wantasen, Adnan Sj; Ngangi, Edwin LA
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 8, No 2 (2012)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (373.669 KB) | DOI: 10.35800/jpkt.8.2.2012.409

Abstract

Penangkapan ikan yang destruktif (menggunakan bom dan racun) dan pengambilan karang un­tuk dijadikan fondasi rumah menjadi isu dalam pengelolaan pesisir di Desa Tumbak. Tujuan penelitian ini adalah (1) Mengetahui nilai manfaat langsung terumbu karang sebagai tempat penangkapan ikan oleh masyarakat di Desa Tumbak; (2) Mengetahui nilai manfaat langsung terumbu karang sebagai bahan ba­ngunan oleh masyarakat di Desa Tumbak; (3) Mengetahui total nilai pemanfaatan terumbu karang seba­gai tempat penangkapan ikan dan sebagai bahan bangunan oleh masyarakat di Desa Tumbak. Nilai man­faat langsung terumbu karang untuk fondasi rumah diperoleh Rp6.177.600 per tahun dan nilai manfaat langsung terumbu karang untuk penangkapan ikan karang Rp4.860.000.000. Total nilai manfaat langsung dari kedua pemanfaatan ini yaitu: Rp4.866.177.600. Total nilai ini belum termasuk pemanfaatan dalam bentuk lain terhadap ekosistem terumbu karang. Pemanfaatan terumbu karang sebagai bahan bangunan terutama disebabkan oleh faktor biaya yang murah dan jarak yang dekat dengan pemukiman. Praktik pe­manfaatan yang tidak berkelanjutan ini menyebabkan degradasi kondisi terumbu karang sehingga tutupan karang hidup berada dalam kategori rusak (sedang). Jika terjadi terus-menerus, hal ini dapat menghilang­kan fungsi ekologis sebagai peredam ombak dan fungsi ekonomis sebagai sumber pangan. Kata kunci: Tumbak; nilai manfaat langsung; terumbu karang; ekosistem   The issues of destructive fishing practices (using of bombs and poisons) and the use of corals as construction building materials have become issues in coastal management in Tumbak Village. The aims of this study are (1) to find out the value of the direct benefits of coral reefs as fishing ground to the com­munities in Tumbak village, (2) to find out the value of the direct benefits of coral reefs as building mate­rials to the communities in Tumbak village; (3) to find out the total value of the use of coral reefs as a fishing ground and as a construction materials for to the communities in Tumbak village. The value of direct benefit of the coral reef for building foundation was Rp 6,177,600 per year and the value of direct benefits for fishing was Rp 4,860,000,000. Total value of direct benefits from both of these uses was Rp 4,866,177,600. Total value did not include the use of other forms of coral reef ecosystems. In conclusi­ons, the use of coral reefs as a building materials were mainly due to the low cost and the proximity to residential areas. Such category unsustainable practice has led to the degradation of coral reefs down to damaged category (medium category). If this happened continuously, the ecological function as wave protectors and economic functions as a source of food could be eliminated. Keywords: Tumbak; direct benefit value; coral reefs; ecosystem.
Environmental condition to fish culture using floating cage in Manalu Cluster, Sangihe Islands Regency Lano, Inayati H.G.M; Ngangi, Edwin L.A; Lasut, Markus T
AQUATIC SCIENCE & MANAGEMENT Vol 6, No 2 (2018): October
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jasm.6.2.2018.24839

Abstract

Title (Bahasa Indonesia): Kondisi lingkungan perairan untuk budi daya ikan dengan sistem karamba jaring apung di Perairan Klaster Manalu, Kabupaten Kepulauan Sangihe Manalu and it surroundings cluster is a zone which is designatedas a development center for agropolitan and minapolitan region and as a marine and coastal aquaculture center which include Manalu Bay, South Tabukan sub-district, South East Tabukan sub-district, and Center Tabukan sub-district. Hangke,Sensahang/Ensahange, Talawe, Kalagheng, Mutung and Bembiha areasareincluded inthis cluster, although noresearch has been conducted to studythis area. Datacollected includewater quality parameters, data about convenience and risk factor. Data about convenience and risk factorwas collected by interview with persons who consider as those who know best about the site and do marine culture for living. Water quality parameters was collected by doing measurementonsalinity, temperature, disolved oxygen, visibility, pH, water depth and current velocity  in 4 representative areas.The collected data showthat convenience factor was high and risk factor waslow. Due to lowwater depth and lowvisibility, area 1and 2 was not recomended for futher development for marine culture with floating cage construction. Area 3 and 4 can be recomended for futher development because data result show good value.Klaster Manalu dan sekitarnya merupakan zona yang diperuntukkan untuk pusat pengembangan kawasan agropolitan dan minapolitan, dan pusat budi daya pantai dan laut di mana meliputi Teluk Manalu, Kecamatan Tabukan Selatan, Kecamatan Tabukan Timur, dan Kecamatan Tabukan Tengah. Perairan Hangke, Sensahang/Ensahange, Talawe, Kalagheng, Mutung, dan Bembiha masuk dalam klaster ini, meskipun belum ada penelitian dilakukan untuk mengkaji hal tersebut. Data yang dikumpulkan meliputi parameter kualitas air, faktor kenyamanan, dan faktor risiko. Data faktor kenyamanan dan risiko dikumpulkan menggunakan teknik wawancara kepada masyarakat, yang mengetahui tentang keberadaan daerah tersebut. Parameter kualitas air dikumpulkan dengan cara melakukan pengukuran terhadap salinitas, suhu, oksigen terlarut, kecerahan, pH, kedalaman, dan kecepatan arus pada 4 lokasi yang dipilih. Hasil analisis menunjukkan, bahwa faktor kenyamanan berada pada tingkatan tinggi dan faktor risiko berapa pada tingkatan rendah. Dalam hal kondisi perairan, karena kedalaman dan kecerahan rendah pada Lokasi 1 dan 2, maka lokasi tersebut tidak dianjurkan untuk dilakukan pengembangan budi daya laut menggunakan kurungan jaring apung (KJA). Lokasi 3 dan 4 dapat dianjurkan untuk dilakukan pengembangan karena hasil pengamatan menunjukkan nilai yang “baik”.
Pertumbuhan rumput laut Kappaphycus alvarezii (Doty) yang direndam dalam ekstrak daun ketapang Terminalia catappa L. dengan frekuensi berbeda Kurniawan, Putra M.; Kreckhoff, Reni L.; Ngangi, Edwin L. A.; Wagey, Billy T.
e-Journal BUDIDAYA PERAIRAN Vol 8, No 2 (2020)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.8.2.2020.28728

Abstract

This study aimed to evaluate the benefits of Terminalia catappa L. leaf extract on the growth of Kappaphycus alvarezii seaweed. Treatment A (control /without soaking into ketapang leaf extract), treatment B (soaking into ketapang leaf extract at the beginning of maintenance), C (soaking ketapang leaf extract every 1 week) and D (soaking into ketapang leaf extract every 2 weeks). Differences in growth of K. alvarezii seaweed for 42 days were not significantly affected by differences in the frequency of immersion of ketapang leaf extract. Absolute growth of Fcount (3.9521977 tn) <Ftable value of 5% (4.06), relative growth of Fcount (2.957545 tn) <Ftable value of 5% (4.06) and daily growth rate of Fcount (3.237068tn) <Ftable value of 5% (4.06). Even so the results of absolute growth measurements, relative growth and the best daily growth rate on soaking ketapang leaf extract every two weeks, followed by soaking ketapang leaf extract at the beginning of cultivation, soaking ketapang leaf extract every one week and without soaking into leaf extract.
Kondisi Lingkungan Perairan Budi Daya Rumput Laut di Desa Arakan, Kabupaten Minahasa Selatan Burdames, Yanis; Ngangi, Edwin L.A. Ngangi2 L.A
e-Journal BUDIDAYA PERAIRAN Vol 2, No 3 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.2.3.2014.5706

Abstract

The purpose of the study was to evaluate the present feasibility of seaweed cultivation area at the waters of Arakan village. Research method used was observation. Observation  station consisted of 1) near residential area, 2) at seaweed culture area, 3) around mangrove ecosystem.  Data collected included area sheltering, bottom substrate, pH, salinity, flow rate, water depth.  Measurement of water quality was conducted in the morning and afternoon. Data was analyzed descriptively and then compared with the water quality tables eligibility for seaweed cultivation by Bakosurtanal 1996. Research results illustrated that cultivation areas at all station were feasible, water quality at station 1 was very feasible and station 3 was less feasible. pH and salinity at all station were very feasible, flow rates at station 1 and 3 were less feasible while at station 2 was very feasible, water depth was very feasible, and water temperature was categorized as feasible to very feasible.  It was concluded that  the present condition of the waters at Arakan Village is still suitable for seaweed aquaculture.   Keywords: Desa Arakan, seaweeds, water quality, area feasibility
Identifikasi lingkungan perairan untuk budi daya karang hias di desa Arakan Kabupaten Minahasa Selatan Manembu, Indri S; Ngangi, Edwin L.A
e-Journal BUDIDAYA PERAIRAN Vol 4, No 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.4.2.2016.13088

Abstract

This research aimed to gather data and information as well as to evaluate the waters condition and water quality suitable for ornamental coral aquaculture, so the characteristic of Arakan waters for ornamental coral aquaculture could be examined.  The research applied Explorative Descriptive method with Purposive Sampling.  Research stations were established at 20 points representing the overall ecosystem of Arakan waters.  Data collected  consisted of physical conditions (bottom substrate, flow rate, turbidity, water depth, salinity, temperature, TSS) and  chemical conditions (pH, DO, nitrate, phosphate). Data were analyzed using Matching Method by matching the data obtained from sea water standard quality table for marine biota in accordance to Kep.Men. LH No. 51/2004 and data from Hutabarat and Evans (1984).  Based on physical and chemical conditions, Arakan waters was suitable for ornamental coral aquaculture or categorized as suitable. However, water temperature at the time of measurement was not proper,  thus monitoring of this parameter for longer period was required. Keywords: Arakan Village, ornamental coral, water quality, waters condition,  matching                      method
Seleksi probiotik Lactobacillus sp. dari usus ikan mas (Cyprinus carpio) potensial untuk akuakultur Bella, Sintia S.; Manoppo, Henky; Undap, Suzanne L.; Tumbol, Reiny A.; Ngangi, Edwin L. A.
e-Journal BUDIDAYA PERAIRAN Vol 8, No 2 (2020)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.8.2.2020.29902

Abstract

The aimed of the study was to isolate and select the probiotic Lactobacillus from carp intestine potential for use in aquaculture. Carp as a source of probiotics with a size of about 200 g was  taken from the Center for Fish Hatchery and Disease Control (BP3I), Tateli. After aseptic surgery, the intestine was separated and cleaned, weighed as much as 1 g, put in a mortar and crushed until smooth. The scoured results were put into a tube and added 9 ml NaCl to get a ratio of 1:10. The tube that already contains intestinal scouring was then centrifuged at a speed of 1000 RPM for 10 minutes. The centrifugation process was carried out 2 times to get the supernatant that has been cleared of debris. The supernatant was removed and diluted to obtain a concentration of 10-2  to 10-3. The solution was then spread on MRS (De Man Rogosa and Sharpe Agar) media and incubated at 28oC in the Incubator for 24-48 hours. The bacteria that grew in culture fmedia was reisolated several times to get a single pure colony.. The pure colonies were propagated in the same media to be further identified through gram staining, biochemical, proteolytic, amylolytic, cellulolytic, antibiotic resistance, antagonistic, pathogenicity tests. The results of the isolation obtained the characteristics of a colony of milky white color, round and convex with long cells, gram-positive and confirmed based on biochemical tests as Lactobaccilus sp. The bacterium also had proteolytic, amylolytic, cellulolytic, antagonistic, antibiotic-sensitive activity that were characterized by the formation of clear zones in the area around probiotic discs, and did not cause death either as a disease or as a result of poisoning. Thus it can be concluded that Lactobaccilus sp. isolated from carp intestines can be used as probiotics for cultivation.
Co-Authors Achmad, Febrio V. Adnan Wantasen Agus Gaghaube Ali Djamhuri Baring, Vira Bella, Sintia S. Billy Theodorus Wagey Carolus Paulus Paruntu Cyska Lumenta Dahlia Malau Darmono, Oktaviano P. Darwasito, Suria Dawaso, Agri Deiske Adeliene Sumilat, Deiske Adeliene Deysy M. Puansalaing Diany R.A Silalahi Edy, Selvanus Farnis B. Boneka Fauzanabri, Renno Ferdinand Frans Tilaar Gompi, Wiranto Grace O. Tambani Grevo S Gerung Handy Burase Hengky J. Sinjal, Hengky J. Henky Manoppo Henneke Pangkey Indra R. N. Salindeho Indra R.N. Salindeho Indri Manembu Ingrid Sembiring John L. Tombokan Johnny Budiman Joice R.T.S.L Rimper Joppy Mudeng Joshian N.W. Schaduw Karisoh, Yuriani S. Kaseger, Cindy Kepel, Rene Ch. Kreckhoff, Reni L. Kudato, Vania E. Kurniawan, Putra M. Kusen, Diane J. Kusen, Diane Joula Lalita, Jans Djoike Lano, Inayati H.G.M Lukas L.J.J Mondoringin Makapedua, Daisy M. Mamesah, Jeivana F.T Mandagi, Stephanus V. Mandagi, Stephanus Vianny Manengkey, Hermanto W. K Manoppo, Victoria E.N Markus T. Lasut Maryen, Yakob Oskar Mokolensang, Jeffrie F. Monijung, Revol D. Niti, Eukharistian Nurdin Jusuf, Nurdin Ockstan J. Kalesaran Pratasik, Gerald A. Rachim, M. Hatta Ramli A. Ismail, Ramli A. Reiny A. Tumbol Reiny A. Tumbol Robert J Rompas Robert Rompas Roeroe, Kakaskasen Andreas Rompas, Rizald M. Salindeho, Indra R. Sambali, Hariyani Sammy N. J. Longdong Sammy N. J. Longdong Sammy N.J. Longdong Saragih, Debby Dyanessa Silalahi, Torang J. P. Sinaga, Chintya R. Sinipirang, Frischa A. Sinjal, Chatrien A. L Sipriana S. Tumembouw Sondakh, Srie J. Suzanne L Undap Tarimakase, Yulianus Tilaar, Ferdinand F. Tindage, Tantri W. Tulung, Herol A. Usoh, Yosua Wihelmina Dimara Wilhelmina Patty Winda M. Mingkid Winda M. Mingkid, Winda M. Yanis Burdames