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TEST OF EFFECTIVENESS OF RUBBER CASSAVA ROOT BARK (Manihot glaziovii) AS A SUBSTITUTE FOR SAPONINS IN AQUACULTURE Aulia, Deni; Putra, Angkasa; Aini, Sarifah; Sabariyah, Nunung; Harahap, Kurnia Sada
Aurelia Journal Vol 5, No 2 (2023): Oktober
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v5i2.12655

Rubber cassava root (Manihot glaziovii) bark contains an active substance known as Hydrogen Cyanide (HCN), which is toxic to red-blooded animals. This bark is abundant and readily available in the community’s surroundings. Therefore, this research aims to investigate the effect of using rubber cassava root bark at specific doses in eradicating red-blooded fish. The test animals used are Nile tilapia (Oreochromis niloticus). Each treatment is repeated three times and assigned specific codes: code A as a control with the application of 20 ppm saponin, and codes B, C, and D with the application of rubber cassava root bark liquid at 20 ppm, 40 ppm, and 100 ppm, respectively. The parameter used as the observation criterion is the mortality rate of the test animals over 6 hours with varying doses of rubber cassava root bark liquid. Based on the research results, it can be concluded that rubber cassava root bark liquid can be used as an alternative to replace saponin at 100 ppm. Further research is required to determine the most effective dose of rubber cassava root bark as a substitute for saponin in aquaculture.

Study of Coral Reefs in the Tourism Zone of Hoga Island, Wakatobi National Park, Southeast Sulawesi, Indonesia Hawati, Hawati; Mustafa, Mustafa; Yusuf, Yusuf; Putra, Angkasa; Suriadin, Herianto
Journal La Lifesci Vol. 5 No. 1 (2024): Journal La Lifesci
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallalifesci.v5i1.905

One of the ecosystems in tropical waters is the coral reef. Coral reefs serve multiple functions, both ecologically and economically. The marine waters in Wakatobi Regency boast diverse coral reefs, and this study aims to assess the coral reefs in one of its regions, specifically in the waters around Hoga Island, part of Wakatobi National Park. The research was conducted from March to May 2023, involving direct observations at the research site. The collected data were then analyzed and presented descriptively concerning the percentage of coral reefs in the study area. The percentage of coral cover in the growth forms (lifeform) of the Wakatobi National Park tourism zone, region II, revealed that, at the first station, coral cover was 46.33%, dominated by Coral Branching (CB) at 22.36%, and Biotic, primarily Soft Coral (SC), at 14.95%. At the second station, coral cover was 36.13%, with Coral Branching (CB) accounting for 11.53%, and Soft Coral (SC) at 25.33%. The third station exhibited a coral cover percentage of 60.37%.

OBSERVASI DAERAH PENANGKAPAN IKAN DI PERAIRAN LAUT JAWA DAN SELAT MAKASSAR Larasati, Rakhma Fitria; Jaya, Made Mahendra; Mahardi, I Gusti Ngurah Kadek Hary; Putra, Angkasa; Bramana, Aditya; Aini, Sarifah; Hamdani, Hamdani; Ariana, Made
Jurnal Teknologi Perikanan dan Kelautan Vol 15 No 2 (2024): JUNI 2024
Publisher : Fakultas Perikanan dan Ilmu Kelautan, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24319/jtpk.15.203-210

Daerah penangkapan ikan di perairan Laut Jawa dan Selat Makassar merupakan daerah tangkapan yang penting bagi nelayan. Tujuan dari penelitian ini adalah untuk menganalisis proses penentuan Daerah Penangkapan Ikan (DPI), menjelaskan hasil observasi suhu dan salinitas perairan di setiap DPI yang telah ditentukan, serta mengidentifikasi jenis hasil tangkapan, dengan menggunakan Kapal Motor (KM) Tirta Putra Kencana I (alat tangkap purse seine). Penelitian ini dilakukan di perairan Laut Jawa dan di Selat Makasar, mulai dari bulan Desember tahun 2022 hingga bulan April 2023. Metode penelitian yang digunakan adalah observasi langsung dan dianalisis menggunakan analisis deskriptif. Data primer diperoleh melalui observasi langsung di lapangan, termasuk kegiatan penentuan DPI dan pengukuran suhu, serta salinitas di setiap lokasi DPI. Penentuan DPI dilakukan dengan mempertimbangkan beberapa syarat, seperti wilayah perizinan penangkapan ikan, ketidakgangguan terhadap pelayaran niaga, kondisi perairan yang aman, dan minim pengaruh cuaca buruk pada daerah tersebut. Hasil pengukuran suhu dan salinitas menunjukkan bahwa rata-rata perairan Laut Jawa dan Selat Makassar memiliki karakteristik yang serupa. Namun, DPI yang berdekatan dengan daratan menunjukkan suhu yang lebih rendah dan kadar salinitas yang lebih tinggi. Jenis hasil tangkapan didominasi oleh ikan layang (Decapterus macrosoma dan Decapterus russelli) yang mendiami perairan laut lepas, diikuti oleh ikan siro (Sardinella sp.) yang ditemui di wilayah pantai. Komoditas ikan pelagis besar lebih cenderung tertangkap di wilayah penangkapan di sebelah barat.

Enhancing Catfish (Clarias sp.) Farming Production and Economic Viability through Molasses Application in Biofloc System Aulia, Deni; Suprakto, Bambang; Budimawan, Budimawan; Putra, Angkasa; Aini, Sarifah; Asaf, Ruzkiah; Wartini, Sri; Sabariyah, Nunung
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 1 (2024): APRIL 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.1.36892

In addition to having high economic value, catfish (Clarias sp.) can also be cultivated quickly and they can adapt well. The demand of catfish is in line with the increase in production which is expected to remain efficient and environmentally sound. Biofloc technology has also been implemented in catfish for increasing productivity. Biofloc utilizes the activity of heterotrophic microorganisms and autotrophs for the conversion of organic waste into floc and is used as fish feed. This study aims to examine the effect of the use of molasses with different doses (C/N ratio) on the growth and survival rate of catfish. This study was conducted with as many as 3 treatments with 3 repetitions each except for the control. The treatment with the ratio of molasses in each of them: A: C/N of 10:1; B: C/N of 15:1; C: C/N of 20:1, and D without molasses given as control. The study using 240 catfish measuring 10-12 cm was carried out for 30 days with sampling every 10 days. It aims to determine the average growth, daily growth, and survival rate of test biota during the study. Based on the results of this study, it can be concluded that the use of different doses of molasses in catfish farming, and biofloc technology will affect the growth and survival rate of farmed catfish. Catfish farmed with biofloc technology at a C/N ratio of 15:1 show the best results on their growth and survival rate. In addition, catfish farming with a biofloc C/N ratio of 15:1 has a better economic analysis when compared to conventional catfish farming. In summary, the use of biofloc based on research results can be a recommendation to be applied in the community, especially among catfish farmers.

Enhancing Catfish (Clarias sp.) Farming Production and Economic Viability through Molasses Application in Biofloc System Aulia, Deni; Suprakto, Bambang; Budimawan, Budimawan; Putra, Angkasa; Aini, Sarifah; Asaf, Ruzkiah; Wartini, Sri; Sabariyah, Nunung
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 1 (2024): APRIL 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.1.36892

In addition to having high economic value, catfish (Clarias sp.) can also be cultivated quickly and they can adapt well. The demand of catfish is in line with the increase in production which is expected to remain efficient and environmentally sound. Biofloc technology has also been implemented in catfish for increasing productivity. Biofloc utilizes the activity of heterotrophic microorganisms and autotrophs for the conversion of organic waste into floc and is used as fish feed. This study aims to examine the effect of the use of molasses with different doses (C/N ratio) on the growth and survival rate of catfish. This study was conducted with as many as 3 treatments with 3 repetitions each except for the control. The treatment with the ratio of molasses in each of them: A: C/N of 10:1; B: C/N of 15:1; C: C/N of 20:1, and D without molasses given as control. The study using 240 catfish measuring 10-12 cm was carried out for 30 days with sampling every 10 days. It aims to determine the average growth, daily growth, and survival rate of test biota during the study. Based on the results of this study, it can be concluded that the use of different doses of molasses in catfish farming, and biofloc technology will affect the growth and survival rate of farmed catfish. Catfish farmed with biofloc technology at a C/N ratio of 15:1 show the best results on their growth and survival rate. In addition, catfish farming with a biofloc C/N ratio of 15:1 has a better economic analysis when compared to conventional catfish farming. In summary, the use of biofloc based on research results can be a recommendation to be applied in the community, especially among catfish farmers.

CALLUS INDUCTION IN Kappaphycus alvarezii USING INDOLE-3-ACETIC ACID (IAA) and 6-BENZYLAMINOPURINE (BAP) FOR SEEDSTOCK DEVELOPMENT Mulyono, Mugi; Salsabila, Mutia Safa; Rasnijal, Muhammad; Fadilah, Siti; Putra, Angkasa
Indonesian Aquaculture Journal Vol 20, No 1 (2025): (June, 2025)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.20.1.2025.1-10

The commercially important red seaweed Kappaphycus alvarezii is extensively cultivated for carrageenan production. Despite its economic value, large-scale reproduction and genetic enhancement remain limited due to its low regeneration potential. This study aimed to optimize plant growth regulator (PGR) concentrations for efficient callus induction in K. alvarezii. A completely randomized design was employed, comprising five treatments with varying concentrations of indole-3-acetic acid (IAA) and 6-benzylaminopurine (BAP), along with a control lacking PGRs. A total of 180 explants from meristematic tissues of acclimatized thalli were cultured (30 explants per treatment). The highest callus induction rate (88%) was achieved with 1.50 mg/L IAA and 5 mg/L BAP (Treatment F), with visible callus formation beginning around day 38. A progressive color change from brown to white was observed, indicating active cellular proliferation. Other treatments exhibited lower induction rates, ranging from 0% (control) to 61% (Treatment D). These findings underscore the critical influence of auxin–cytokinin interactions on callogenesis and offer an optimized hormonal regime for improving in vitro culture efficiency. The established protocol provides a valuable platform for future large-scale propagation and genetic improvement strategies in K. alvarezii, contributing to the advancement of seaweed biotechnology.

KAJIAN TEKNIS DAN ANALISIS FINANSIAL PEMBENIHAN UDANG VANAME (Litopenaeus vannamei) DI PT. ESAPUTLII PRAKARSA UTAMA (BENUR KITA) KAB. BARRU, SULAWESI SELATAN Fauzi, Moh.; Kristiani, Maria Goreti Eny; Hapsari, Fitriska; Putra, Angkasa
MARLIN Vol 3, No 2 (2022): (Agustus 2022)
Publisher : Politeknik Kelautan dan Perikanan Pangandaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/marlin.V3.I2.2022.67-76

Salah satu jenis udang yang saat ini gencar dibudidayakan adalah udang vaname (Litopenaeus vannamei). Segmentasi usaha pembenihan mempunyai peranan penting pada sektor budidaya perikanan yang disertai dengan perkembangan unit hatchery yang cenderung semakin meningkat. Kualitas benur merupakan faktor yang sangat berpengaruh terhadap keberhasilan budidaya pada segmentasi pembesaran udang vaname sehingga perlu dilakukan suatu upaya dalam rangka mengatur kegiatan produksi benih udang vaname agar terciptanya benih yang berkualitas dengan keuntungan yang sepadan. Penelitian ini dilakukan untuk mengetahui performansi kinerja budidaya dan mengkaji analisis finansial tentang pembenihan udang vaname. Kajian dilakukan dengan metode observatif dan wawancara di PT. Esaputlii Prakarsa Utama selama 59 hari dan dilakukan studi literatur sebagai data sekunder pada isi kajian. Hasil kajian menunjukan bahwa rata-rata produktivitas larva udang vaname 23.160.000 ekor/siklus, FR 95%, HR 94%, dan SR 42%. Dengan hasil analisis finansial biaya investasi Rp 3.022.383.000, biaya penyusutan 232.203.000/tahun, biaya tetap 1.327.203.000/tahun, biaya tidak tetap 563,217,000/tahun, keuntungan 2.231.755.830/tahun, BEP Harga 1.397.055.789 /tahun, BEP unit 28.238.337 ekor/tahun, PP 1,22 Tahun, dan R/C Ratio 6,9.One type of shrimp that is currently intensively cultivated is vaname shrimp (Litopenaeus vannamei). Hatchery business segmentation has an important role in the aquaculture sector accompanied by the development of hatchery units that tend to increase. The quality of Fry is a factor that greatly influences the success of cultivation in the segmentation of vaname shrimp enlargement so it is necessary to make an effort in order to regulate vaname shrimp seed production activities in order to create quality seeds with commensurate profits. This study was conducted to determine the performance of aquaculture performance, and assess the financial analysis of vaname shrimp hatchery. The study was conducted by observative method and interviews at PT. Esaputlii main initiative for 59 days and conducted a literature study as secondary data on the contents of the study. The results showed that the average productivity of vaname shrimp larvae was 23,160,000 head / cycle, FR 95%, HR 94% and SR 42%. With the results of financial analysis of investment costs Rp 3,022,383,000, depreciation costs 232,203,000 /year, fixed costs 1,327,203,000 /year, non-fixed costs 563,217,000 /year, profit 2,231,755,830 /year, BEP price 1,397,055,789 /year, BEP unit 28,238,337 tail/year, PP 1.22 years and R/C ratio 6.9.

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