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All Journal e-Journal BUDIDAYA PERAIRAN JURNAL ILMIAH PLATAX
Mokolensang, Jeffrie F.
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Environmental Science

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Pertumbuhan Ikan Nila (Oreochromis niloticus) yang diberikan pakan kombinasi pelet dan maggot (Hermetia illucens) kering dengan presentasi berbeda Sepang, Daniella A.; Mudeng, Joppy D.; Monijung, Revol D.; Sambali, Hariyani; Mokolensang, Jeffrie F.
e-Journal BUDIDAYA PERAIRAN Vol 9, No 1 (2021)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.9.1.2021.31090

Abstract

This study aimed to determine the effect of providing a combination of natural feed maggots and pellets on the growth performance of Nile Tilapia and to ratio between maggots and pellets that promote growth of Nile Tilapia. The research was conducted from June to August 2020. The research method was using a completely randomized design (CRD) with 5 treatments and 3 replications with the following treatments: treatment A = 100% pellets, treatment B = 75% pellets and 25% maggots, treatment C = 50% pellets and 50% maggot, treatment D = 25% pellets and 75% maggot, treatment E = 100% maggot. The test fish used Nile Tilapia fingerling with average weighing 4 g / fish with density of 5 fish / container and maintained for 21 days. The containers used in this study were 15 plastic trays with a diameter of 40 cm and a height of 20 cm each with a water capacity of 15 liters. Growth performance data were Weight gain (WG), Specific growth rate (SGR), relative growth rate (SGR), feed convertion rate (FCR) and feed intake (FI). Based on the results of this study, it shows that the use of a combination of pellet and maggot feed as Nile tilapia juvenile has an effect on the growth performance of Nile tilapia so that maggot can be used as an alternative feed that has high nutritional content for tilapia fish cultivation. The treatment that gave the best growth effect on tilapia seeds was found at the dose of a combination of 50% pellet feed + 50% maggot, with Weight gain (5.5±1.1g), SGR (3.7±0.5%), RGR (139.4±53.4) and FCR (1.2±0.2)
Efektivitas ekstrak daun akar kucing (Acalypha indica) dalam meningkatkan pertumbuhan ikan Nila, Oreochromis niloticus Ratusmanga, Jihan; Hutagaol, Anggun F.; Manoppo, Henky; Lantu, Sartje; Tumbol, Reiny A.; Mokolensang, Jeffrie F.; Kaligis, Erly Y.
e-Journal BUDIDAYA PERAIRAN Vol 10, No 1 (2022)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.10.1.2022.35531

Abstract

The purposes of research were to examine the effect of extract of Acalypha indica leaf on the growth of Nile tilapia and determine the dose of leaf extract that could enhance the growth of tilapia optimally. The fish used were Nile tilapia taken from the Tatelu Center for Freshwater Aquaculture with an average weight of 3.79±0.50 g. The medicinal plant A. indica was collected from around the Faculty of Fisheries and Marine Science complex and from the North Bolaang Mongondow area. After being washed, the leaves were dried and then ground to obtain leaf powder. Leaf flour was then extracted by maceration method with 95% alcohol solvent. After being concentrated, the extract was then used as a treatment with different concentrations, including A: 0 g extract/kg feed, B:10 g extract/kg feed, C:20 g extract/kg feed, D:30 g extract/kg feed and E: 40g extract/kg feed. The data collected consisted of absolute growth, daily growth and relative growth. The results showed that the extract of A. indica leaf added to the feed had a significantly effect on the growth of tilapia indicated by an increase in absolute growth, daily growth, and relative growth (p<0.05). The best fish growth was achieved in fish fed with feed with the addition of 20 g extract/kg feed. In conclusion, leaf extract of A. indica can increase the growth of Nile tilapia
Pengaruh tingkat yang berbeda dari substitusi tepung ikan dengan tepung darah pada pakan ikan mas Cyprinus carpio L. dalam wadah terkontrol Wungkana, Vike V.; Mokolensang, Jeffrie F.; Watung, Juliaan Ch.; Lumenta, Cyska; Salindeho, Indra R. N.; Wantasen, Adnan S.; Manu, Lusia
e-Journal BUDIDAYA PERAIRAN Vol 10, No 1 (2022)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.10.1.2022.35249

Abstract

The purpose of this study was to determine the feasibility using of blood meal on the growth rate and nutrient utilization of C. carpio L., as well as feeding with various levels of blood meal inclusion. The results showed that the absolute growth of common carp in treatment 1 with a combination was 10% higher than the other treatments. The daily growth rate of common carp in treatment 1 (1,8% / day) was higher than other treatments. Likewise, with the feed change value, treatment 1 showed significantly different from other treatments. The combination of fish meal and blood meal showed significantly different results from the results of statistical tests
Kultur pakan alami Alona sp. dalam media daun eceng gondok yang difermentasi dengan larutan Effective Microorganisme-4 Sumah, Maria; Solang, Jhonly; Pangkey, Henneke; Mokolensang, Jeffrie F.; Lumenta, Cyska; Sinjal, Hengky Sinjal; Rumampuk, Natalie D. C.
e-Journal BUDIDAYA PERAIRAN Vol 9, No 2 (2021)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.9.2.2021.34826

Abstract

The purpose of this study was to examine the density of life feed Alona sp. on the media of water hyacinth leaf fermented with effective microorganism-4 (EM-4) solution. The method used was an experimental, using one-way ANOVA, with four treatments, namely fermented water hyacinth leaf media, unfermented water hyacinth leaf media, horse manure media, and water, each with three replications. The parameter observed was the density of Alona sp. The result showed that the density of Alona sp. cultured using fermented water hyacinth leaf media was significantly different from those cultured on unfermented water hyacinth leaf media.  It had also been found that the density of Alona sp. high in horse manure media. However, it is recommended to use fermented water hyacinth leaf media, because it is more hygienic. In addition, the availability of horse manure is increasingly rare
Penggunaan tepung daun kelor (Moringa oleifera) berbeda komposisi dalam formulasi pakan bagi pertumbuhan ikan nila (Oreochromis niloticus) Pamula, Doni F.; Lumenta, Cyska; Monijung, Revol D.; Mokolensang, Jeffrie F.; Pangkey, Henneke; Sambali, Hariyani
e-Journal BUDIDAYA PERAIRAN Vol. 12 No. 2 (2024): Juli - Desember
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.v12i2.57387

Abstract

Several previous studies regarding the use of Moringa leaf flour on fish had been carried out fish consumption including catfish, tilapia, and gourami. The objectives of this research were to determine the effect of substitution of Moringa leaf flour at different doses in feed formulation on the relative growth of tilapia and determine which treatment had the highest feed efficiency value. The results showed relative weight growth value for tilapia were obtained in treatment C (83.82%),  daily growth (C) 2.03%, food conversion ratio (FCR) 1.29, and Feed Efficiency 77.01%. Keywords: relative growth, daily growth, feed conversion ratio, feed efficiency value.
Phytoplankton Community Structure in Seagrass Beds of Nain Island Waters Mokosuli, Febrianty Dhea; Rimper, Joice R.T.S.L; Warouw, Veibe; Wullur, Stenly; Losung, Fitje; Mokolensang, Jeffrie F.
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.v12i1.52339

Abstract

This study aims to identify phytoplankton species, calculate phytoplankton abundance, diversity index, uniformity index, phytoplankton dominance index, and determine environmental conditions such as temperature, pH, salinity, nitrate, and phosphate in the seagrass ecosystem of Nain Island Waters. Sampling includes seawater for the needs of phytoplankton identification measurement of nitrate and phosphate levels and measurement of water parameters in situ. Phytoplankton sampling is done horizontally using a plankton net. Phytoplankton identification found in the seagrass ecosystem of Nain Island Waters consisted of four classes, namely Bacillariophyceae (Rhizosolenia sp.; Nitzschia sp.; Chaetoceros sp.; Navicula sp.; Eucampi sp.; Pleurosigma sp.; Thalassionema sp.; Melosira sp.), Dinophyceae (Ceratium sp.; Protoperidinium sp.), Chlorophyceae (Spirogyra sp.), and Euglenophyceae (Euglena sp.). The calculation of phytoplankton abundance is in the range of 9 - 51 cells/l. The highest abundance was found at station one which was 51 cells/l, then station three which was 21 cells/l, and station two which was 9 cells//I. The diversity index is in the range of 0.8749 - 1.8668 which means there is community instability. The uniformity index is in the range of 0.2226 - 0.8460, while the dominance index is in the range of 0.2060 - 0.6093, this indicates that the water conditions are stable. Environmental conditions (temperature, salinity, pH, nitrate, and phosphate) in the seagrass ecosystem of Nain Island Waters are still quite good for phytoplankton growth. Keywords: Phytoplankton, Seagrass, Nain Island, Abundance, Biological Index Abstrak Penelitian ini bertujuan untuk identifikasi jenis-jenis fitoplankton, menghitung kelimpahan fitoplankton, indeks keanekaragaman, indeks keseragaman, indeks dominasi fitoplankton dan mengetahui kondisi lingkungan seperti suhu, pH, salinitas, nitrat, dan fosfat di ekosistem padang lamun Perairan Pulau Nain. Pengambilan sampel meliputi air laut untuk kebutuhan identifikasi fitoplankton dan pengukuran kadar nitrat dan fosfat perairan serta pengukuran parameter perairan secara In situ. Pengambilan sampel fitoplankton dilakukan secara horizontal dengan menggunakan plankton net. Fitoplankton yang ditemukan terdiri dari empat kelas yaitu Bacillariophyceae (Rhizosolenia sp. Nitzschia sp. Chaetoceros sp. Navicula sp. Eucampi sp. Pleurosigma sp. Thalassionema sp. Thalassionema sp. Melosira sp.), Dinophyceae (Ceratium sp. Protoperidinium sp.), Chlorophyceae (Spirogyra sp), dan Euglenophyceae (Euglena sp). Hasil perhitungan kelimpahan fitoplankton berada di kisaran 9 - 51 sel/l. Kelimpahan tertinggi ditemukan pada stasiun satu yaitu 51 sel/l, kemudian stasiun tiga yaitu 21 sel/l dan stasiun dua yaitu 9 sel/I. Indeks keanekaragaman berada pada kisaran 0,8749 - 1,8668 yang berarti adanya ketidakstabilan komunitas. Indeks keseragaman yaitu pada kisaran 0,2226 - 0,8460, sedangkan indeks dominasi berada pada kisaran 0,2060 - 0,6093, hal ini menunjukkan kondisi perairan dalam keadaan stabil. Kondisi lingkungan (suhu, salinitas, pH, nitrat dan fosfat) di ekosistem padang lamun Perairan Pulau Nain masih cukup baik untuk pertumbuhan fitoplankton. Kata kunci: Fitoplankton, Padang Lamun, Pulau Nain, Kelimpahan, Indeks Biologi
Kultivasi rumput laut Caulerpa lentillifera menggunakan berat awal berbeda dengan metode rawai permukaan Mamesah, Jeivana F.T; Mudeng, Joppy D.; Ngangi, Edwin L. A.; Kreckhoff, Reni L.; Salindeho, Indra R.N.; Sambali, Hariyani; Mokolensang, Jeffrie F.
e-Journal BUDIDAYA PERAIRAN Vol. 13 No. 1 (2025): Jan - Juni
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.v13i1.60331

Abstract

The research purposes were to determine the best initial weight of Caulerpa lentillifera algae, determine the appropriate cultural operational depth for the best growth of C.lentillifera algae, and determine the interaction between the initial weight factor of C.lentillifera algae and the depth factor of growth. This research was carried out from May to July 2023. The C. lentillifera algae in this research were obtained from nature. C.lentillifera algae culture is carried out using the verticulture method, namely tying the algae to strings arranged in a row. This research was designed using a 3x3 factorial in a Completely Randomized Design (RAL). There are 2 factors tested in this experiment, each of which has 3 levels, namely: the weight factor of C. lentillifera algae which consists of: A1 = 50 grams, A2 = 100 grams and A3 = 150 grams, and the depth factor which consists of: B1 = 20 cm, B2 = 70 cm and B3 = 120 cm. The results obtained from this research are that differences in the growth of C. lentillifera algae are very significantly influenced by differences in the initial weight of different. The best absolute growth, relative growth, and daily growth rate were initial C. lentillifera algae weights of 50 grams, which respectively had the highest average values of 24.3 grams, 16.2%, and 1.4%. Differences in depth had no significant influence on differences in absolute growth, relative growth, and daily growth rate of the algae C. lentillifera. The results of variance analysis showed that the influence of the weight factor of C. lentillifera on absolute growth, relative growth, and daily growth rate did not change significantly when the depth factor level was changed. Keywords: verticulture; growth; initial weight; depth
Co-Authors Adnan Wantasen Calvyn F. A. Sondak, Calvyn F. A. Cyska Lumenta Edwin D Ngangi Erly Y. Kaligis, Erly Y. Fitje Losung Hariawan, Mutiara G. V. Henky Manoppo Henneke Pangkey Hutagaol, Anggun F. Indra R. N. Salindeho Indra R.N. Salindeho Iroth, Revelino A. Jhonly Solang Joice R.T.S.L Rimper Joppy Mudeng Juliaan Ch. Watung Kreckhoff, Reni L. Mamesah, Jeivana F.T Mangkapa, Arliani Manu, Lusia Mingkit, Winda M. Mokosuli, Febrianty Dhea Monijung, Revol D. Mudeng, Nico E.G. Natalie D Rumampuk Ngatung, Jefrikardus E. E. Ockstan J. Kalesaran Pamula, Doni F. Pangandaheng, Agreystin Pangemanan, Novie P.L. Pangkey, Hanneke Rajagukguk, Bulfrit B. Ratusmanga, Jihan Reiny A. Tumbol Sambali, Hariyani Sammy N.J. Longdong Sartje Lantu Sepang, Daniella A. Sinjal, Hengky Sinjal Stenly Wullur Sumah, Maria Suzanne L Undap Takou, Putri D. Tamba, Ermaulina Veibe Warouw Wulur, Stenly Wungkana, Vike V.