Edwin L.A. Ngangi
Sam Ratulangi University

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Kesesuaian areal budidaya rumput laut berdasarkan kapasitas perairan Desa Arakan Kabupeten Minahasa Selatan Burase, Handy; Rompas, Robert; Ngangi, Edwin L.A.
e-Journal BUDIDAYA PERAIRAN Vol 1, No 1 (2013): Vol.1 No. 1 Januari 2013
Publisher : e-Journal BUDIDAYA PERAIRAN

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Abstract

The purpose of this research was to provide data on waters physical and chemical parameters, proper areal map, carrying capacity, and potential production of seaweed. Research method used was spacial approach through direct measurement in the field and through laboratory analysis. Ten observation stations were established purposively at Desa Arakan waters. Samples were collected four times at two weeks interval. It was found that water temperature was 31–31,25 ºC, flow rate 5,97–11,09 cm/det., dissolved oxygen 5,34–6,45 mg/l, pH 7,7–8,1, salinity 32,5-33 ppt, nitrate 5,02–5,25 mg/l, phosphate 0,01–0,14 mg/l, water depth 1,3–16,5 m, velocity 1,3–4,5 m, tide 0–283 cm with Mean Sea Level 75,6 cm. bottom substrate consisted of coral sand and muddy sand. Proper culture area based on SIG analysis was 134.64 ha in which very proper areal was 68.40 ha, proper 66.23%. while proper areal was 66.23 ha. Based on carrying capacity analysis, proper sustainable site was 126.57 ha. This area could support 1.054 long line measuring 20x60 cm each. Seaweed potential was 3363,7 ton per ha or 4.4 ton/ha/year or 4.4 ton/ha/planting season. Keywords: marine seaweed, water quality, SIG, sea water, SIG, carrying capacity, production
In Vitro Culture of Seaweed Kappaphycus alvarezii under Different Formulation of Growth Stimulating Substances and Culture Media Dalero, Mega D.; Gerung, Grevo S.; Ngangi, Edwin L.A.; Lumingas, Lawrence J.L.; Lasut, Markus T.
JURNAL ILMIAH PLATAX Vol 7, No 1 (2019): EDISI JANUARI-JUNI 2019
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.7.1.2019.23375

Abstract

This study aims at obtaining a sustainably superior seed stock following the characteristics of the parent plant, determining the best formulation of the growth stimulating substance. In general, cytokinin and auxin combination was used, but this study also added with the combination of cytokinin and giberelin and cytokinin and abscisic acid (AA).Parameters measured were bud length, number of buds, and survival rate. Bacterial Vibrio sp test was also done as a cause of the explant mortality. Results showed that the longest bud was recorded in treatment C (S+A 1:2.5) cultured in a jar, 1.343 mm long, 38% of survival, while the highest number of buds was found in treatment B (S+A 1 : 2) 8.86. The shortest bud was recorded in treatment J (S + AA 1:2.5) cultured in a jar, 0.093 mm long, 2.64 buds, 10% of survival, while the explant cultured in the bottle had a length of 0.051 mm long, 1.50 buds, 4% of survival. As conclusion, the best growth stimulating substance was found in the treatment C for the bud length and the survival rate, while the best number of bud was recorded in the treatment B. The best culture tank was topless bottle (aerated). In vitro culture could also use S + G formulation. The explant mortality was caused by Vibrio charchariae. The use of S + AA formulation had lower growth than that of control treatment.Keywords :in vitro, growth stimulating substance, culture media, Kappaphycus alvarezii, Vibrio charchariae ABSTRAKPenelitian ini bertujuan untuk memperoleh benih unggul secara berkelanjutan yang mengikuti karakteristik dari tanaman induk, menentukan formulasi terbaik dari substansi pertumbuhan merangsang. Secara umum, kombinasi sitokinin dan auksin digunakan, tetapi penelitian ini juga menambahkankombinasi sitokinin, giberelin, sitokinin dan asam absisat (AA). Parameter yang diukur adalah panjang tunas, jumlah tunas, dan tingkat kelangsungan hidup. Bakteri Vibrio Uji sp juga dilakukan sebagai penyebab kematian eksplan . Hasil penelitian menunjukkan bahwa tunas terpanjang terdapat pada perlakuan C (S + A 1: 2,5)  kultur dalam toples, 1,343 mm, 38% hidup, sementara jumlah tertinggi tunas ditemukan pada perlakuan B (S + A 1: 2) 8.86 . Jumlah tunas paling sedikit terdapat pada perlakuan J (S + AA 1: 2,5) yang dikultur dalam toples, 0,093 mm, 2,64 tunas, 10% hidup, sedangkan eksplan yang dikultur dalam botol memiliki panjang 0.051 mm, 1. 50 tunas , 4% bertahan hidup. Sebagai kesimpulan, pertumbuhan terbaik merangsang zat ditemukan dalam perlakuan C untuk panjang tunas dan tingkat kelangsungan hidup, sementara jumlah tunas terbanyak ditemukan pada perlakuan B. Penggunaan wadah budaya terbaik adalah topless yang diaerasi. Kultur in vitro juga dapat menggunakan formulasi S + G. Kematian eksplan disebabkan oleh Vibrio charchariae . Penggunaan formulasi S + AA memiliki pertumbuhan yang lebih rendah dari pada pengobatan kontrol .Kata kunci : in vitro, zat perangsang tumbuh, media kultur, Kappaphycus alvarezii, Vibrio charchariae
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 (Jurnal Ilmu dan Manajemen Perairan) Vol 2, No 1 (2014): April
Publisher : Master Program of Aquatic Sciences

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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 Tukeys 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.
Penggunaan Tepung Buah Pepaya Carica papaya L Dalam Pelet Terhadap Efek Pertumbuhan Benih Ikan Nila Oreochromis niloticus Tulung, Herol A.; Lumenta, Cyska; Ngangi, Edwin L.A.
e-Journal BUDIDAYA PERAIRAN Vol 6, No 1 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.6.1.2018.19540

Abstract

This study aimed to determine the effect of papaya flour at different doses on absolute  growth, daily growth, relative growth, feed efficiency, and food conversion. The treatments consisted of 0,  2.5%, 7.5%, 10% of papaya flour respectively, each with three replcations. The weight of fish were  about 18-23.58 g.  The fish were placed in aquaria with a density of  10 individual per aquarium. The experiment design is a complete randomized design. The results of analysis show that the treatments had no significant effect on growth, daily growth, relative growth, feed  efficient, and food conversion ratio. However, treatment C (7.5% papaya flour) gave the best on growth of fish, feed efficiency and food conversion ratio.
Pertumbuhan fragmen bibit ukuran berbeda dalam pembudidayaan karang hias Acropora formosa Sinipirang, Frischa A.; Ngangi, Edwin L.A.; Mudeng, Joppy D.
e-Journal BUDIDAYA PERAIRAN Vol 4, No 3 (2016)
Publisher : e-Journal BUDIDAYA PERAIRAN

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The objective of research was to evaluate the length and diameter of coral Acropora  formosa cultivated with different seed size in Talengen Bay, Tabukan District, Sangihe Island Regency.  Data were collected from May to June 2016.  Experimental design used was Complete Randomized Design with three treatments, each with three replications.  Size of seed as treatment consisted of  A: 5 cm, B: 7 cm and C: 10 cm. The experiment was conducted using bench  system measuring 60 x 60 cm2, while coral seed was A.  formosa.  The seed was gathered from the nature around research location. Growth data and water quality parameters were measured every two weeks .  Research results showed that the highest absolute length growth was achieved in treatment A (average: 0.70 cm), followed by treatment C (average 0.46 cm) and the lowest was in treatment B (average 0.45 cm).  The highest growth of coral diameter was observed in treatment A (average 0.05 cm) and followed by treatment C (average 0.03 cm) and treatment B (0.03 cm). Statistical analysis showed that absolute length growth and coral diameter   were not significant.  A. formosa cultured with different seed length in Talengen Bay had good growth in which the growth in length was faster than the growth in diameter. Keywords : Acropora Formosa. Absolute growth, Talengen Bay
In Vitro Culture of Seaweed Kappaphycus alvarezii under Different Formulation of Growth Stimulating Substances and Culture Media Dalero, Mega D.; Gerung, Grevo S.; Ngangi, Edwin L.A.; Lumingas, Lawrence J.L.; Lasut, Markus T.
JURNAL ILMIAH PLATAX Vol 7, No 1 (2019): EDISI JANUARI-JUNI 2019
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims at obtaining a sustainably superior seed stock following the characteristics of the parent plant, determining the best formulation of the growth stimulating substance. In general, cytokinin and auxin combination was used, but this study also added with the combination of cytokinin and giberelin and cytokinin and abscisic acid (AA).Parameters measured were bud length, number of buds, and survival rate. Bacterial Vibrio sp test was also done as a cause of the explant mortality. Results showed that the longest bud was recorded in treatment C (S+A 1:2.5) cultured in a jar, 1.343 mm long, 38% of survival, while the highest number of buds was found in treatment B (S+A 1 : 2) 8.86. The shortest bud was recorded in treatment J (S + AA 1:2.5) cultured in a jar, 0.093 mm long, 2.64 buds, 10% of survival, while the explant cultured in the bottle had a length of 0.051 mm long, 1.50 buds, 4% of survival. As conclusion, the best growth stimulating substance was found in the treatment C for the bud length and the survival rate, while the best number of bud was recorded in the treatment B. The best culture tank was topless bottle (aerated). In vitro culture could also use S + G formulation. The explant mortality was caused by Vibrio charchariae. The use of S + AA formulation had lower growth than that of control treatment.Keywords :in vitro, growth stimulating substance, culture media, Kappaphycus alvarezii, Vibrio charchariae ABSTRAKPenelitian ini bertujuan untuk memperoleh benih unggul secara berkelanjutan yang mengikuti karakteristik dari tanaman induk, menentukan formulasi terbaik dari substansi pertumbuhan merangsang. Secara umum, kombinasi sitokinin dan auksin digunakan, tetapi penelitian ini juga menambahkankombinasi sitokinin, giberelin, sitokinin dan asam absisat (AA). Parameter yang diukur adalah panjang tunas, jumlah tunas, dan tingkat kelangsungan hidup. Bakteri Vibrio Uji sp juga dilakukan sebagai penyebab kematian eksplan . Hasil penelitian menunjukkan bahwa tunas terpanjang terdapat pada perlakuan C (S + A 1: 2,5)  kultur dalam toples, 1,343 mm, 38% hidup, sementara jumlah tertinggi tunas ditemukan pada perlakuan B (S + A 1: 2) 8.86 . Jumlah tunas paling sedikit terdapat pada perlakuan J (S + AA 1: 2,5) yang dikultur dalam toples, 0,093 mm, 2,64 tunas, 10% hidup, sedangkan eksplan yang dikultur dalam botol memiliki panjang 0.051 mm, 1. 50 tunas , 4% bertahan hidup. Sebagai kesimpulan, pertumbuhan terbaik merangsang zat ditemukan dalam perlakuan C untuk panjang tunas dan tingkat kelangsungan hidup, sementara jumlah tunas terbanyak ditemukan pada perlakuan B. Penggunaan wadah budaya terbaik adalah topless yang diaerasi. Kultur in vitro juga dapat menggunakan formulasi S + G. Kematian eksplan disebabkan oleh Vibrio charchariae . Penggunaan formulasi S + AA memiliki pertumbuhan yang lebih rendah dari pada pengobatan kontrol .Kata kunci : in vitro, zat perangsang tumbuh, media kultur, Kappaphycus alvarezii, Vibrio charchariae