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All Journal AQUATIC SCIENCE & MANAGEMENT e-Journal BUDIDAYA PERAIRAN JURNAL ILMIAH PLATAX Jurnal Bios Logos EUGENIA JURNAL PERIKANAN DAN KELAUTAN TROPIS Journal of Fisheries & Marine
Cyska Lumenta
Fakultas Perikanan dan Ilmu Kelautan, Universitas Sam Ratulangi. Jl. Kampus Unsrat Bahu, Manado 95115, Sulawesi Utara, Indonesia.
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Environmental Science Immunology & microbiology Medicine & Pharmacology

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Peningkatan kepadatan Alona sp. pada jerami padi yang difermentasi Utami, Tiara; Pangkey, Henneke; Lantu, Sartje; Lumenta, Cyska; Salindeho, Indra R. N.; Kemer, Kurniati
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.10.1.2022.35499

Abstract

The objective of this study was to determine the difference in density of Alona sp in fermented rice straw and unfermented rice straw media. This research was conducted at the Aquaculture Technology Laboratory and the Fish Health, Environment and Toxicology Laboratory, Faculty of Fisheries and Marine Sciences, Sam Ratulangi University, Manado, from March to June 2021.The experiment was based on four treatments, namely fermented rice straw media with Effective Microorganisms-4 (EM-4) solution, unfermented rice straw media, horse manure media and water media. The experimental design used was a completely randomized design (CRD) with 4 treatments, each treatment was repeated 3 times, so there were 12 experimental units. The results obtained are the density of Alona sp. cultured on fermented rice straw media were not significantly different from those cultured on unfermented rice straw media but significantly different from horse manure and water media. There was no significant difference between fermented straw media and unfermented straw media on the increase in density of Alona sp., apparently caused by the fermentation time of EM-4 solution of rice straw which was not long enough.
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.
Kajian perubahan warna gonad kerang mutiara hitam Pinctada margaritifera berdasarkan ukuran cangkang di perairan Teluk Talengen, Kepulauan Sangihe Bawekes, Frisley Rici; Kalesaran, Ockstan J.; Lumenta, Cyska; Mingkid, Winda M.; Kusen, Diane J.; 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

Abstract

The black pearl oyster Pinctada margaritifera (Linnaeus, 1758) or black lip pearl oyster is a marine bivalve with important economic value. P. margaritifera is a protandrous hermaphroditic species. Externally it is difficult to differentiate between male and female gonads. This research aimed to determine differences in gonad color and determine the sex of P. margaritifera based on shell size. The test animals used in this research were black pearl mussels P. margaritifera totaling 33 samples taken from Talengen Bay, Sangihe Islands Regency, North Sulawesi. The results of morphometric measurements showed the average shell length was 103.16 mm, where the maximum shell length was 131.61 mm and the minimum was 81.29 mm. The average shell width was 105.65 (max 141.17 mm-min 83.21mm), the average shell thickness was 32.46 mm (max 44.36, min 20.11mm). The gonads were white and slightly yellow in 24 males and yellow in 9 females. P. margaritifera with a shell length of 90-130 mm was found to be female, and most were 110-120 mm in size. Meanwhile, shell lengths <80 mm and 110-130 mm male pearl oysters were still found. Keywords: marine bivalve, growth rate, morphometric, shell length
Rekruitment Tropical Box Mussels, Septifer Bilocularis In Tiwoho Coastal Area Palit, Deyti A.; Boneka, Farnis B.; Kaligis, Early Y.; Rimper, Joice R. T. S. L; Lumenta, Cyska; Ompi, Medy
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.v9i2.35726

Abstract

The purpose of this study was to determine 1) the types of substrates on which Septiver attached, and 2) the number of tropical boxes mussel recruits at different size aggregation. The meter was placed on one side of the mussel aggregation, and it was pulled up to the other side through the middle of the mussel aggregation.  There were two different sizes of aggregation, namely small aggregation with a diameter of 5-25 cm, and large aggregation with a diameter > 1 meter. Aggregation samples were carried out by placing a core with a diameter of 10 cm in the center of the small mussel aggregation, then at the edge and the middle position of the large aggregation. All aggregation in the core was removed and inserted into the labeled sample plastic. The sampling was applied 4 times on different mussel aggregations, as replication. The results show that young mussels (recruiters) are attached to algae stems, mussel byssus, and dead hard coral. The number of mussel recruits was square-root transformed to obtain homogeneity data, before being tested using One-Way Analysis of Variance.  The results showed that the recruitment of Septifer was influenced by the size of the aggregation (P<0.05, 1-way ANOVA). The average recruitment of Septiver in the middle position has a higher number of recruits than to the edge position (SNK test, P < 0.05), as well as the average recruitment in the middle position was higher than to the small aggregations (SNK-Test, P < 0.05). However, no recruits differ among edge position of large aggregation and small aggregation occurs (SNK test, P > 0.05).  Discussion of different factors affecting attachment occurs.Keywords: box mussel; Septifer; recruit; aggregation; larva; TiwohoAbstrakTujuan penelitian ini adalah untuk mengetahui 1) jenis-jenis substrat yang menjadi tempat menempel kerang mudah Septiver, dan 2) jumlah rekruit kerang kotak tropis pada ukuran aggregasi kerang yang berbeda. Pengukuran ukuran aggregasi kerang dilakukan dengan meletakkan meteran pada salah satu sisi aggregasi kerang, selanjutnya meteran ditarik sampai ke sisi yang lain melewati bagian tengah aggregasi kerang.  Ada 2 jenis ukuran aggregasi, yaitu aggregasi kecil dengan ukuran diameter aggregasi 5 – 25 cm, dan aggregasi besar, yaitu dengan ukuran diameter aggregasi kerang > 1 meter.   Pengukuran diameter aggregasi dilakukan  4 kali, masing-masing dengan aggregasi berbeda, sebagai ulangan.  Sampel aggregasi kerang dilakukan dengan meletakkan kor (‘cor’) dengan diameter 10 cm di bagian tengah pada aggregasi kerang kecil, posisi pinggir dan tengah aggregasi besar.  Sampel diambil juga sebanyak 4 kali (ulangan) pada masing aggregasi yang berbeda, sebagai ulangan. Kerang disortir dengan bantuan mikroskop, di mana kerang dengan ukuran < 3 mm adalah yang disebut sebagai rekruitmen, dipisahkan dari substrat yang menjadi tempat menempel, selanjutnya kerang diukur panjangnya dengan menggunakan mistar, dengan ketelitian 1 mm. Hasil penelitian teridentifikasi bahwa kerang muda menempel pada  substrat alga, rambut (byssus), dan substrat keras karang mati. Data jumlah rerkuit telah ditransform dengan menggunakan akar, sebelum diuji dengan Analisa Varians 1 Arah (One-Way ANOVA).  Hasil menunjukkan bahwa rekruit kerang Septifer adalah dipengaruhi oleh ukuran aggregasi (P<0.05, 1 Arah ANOVA).  Rata-rata rekruit kerang yang berada di posisi tengah memiliki jumlah rekruit yang lebih besar dibandingkan dengan rata-rata rekruit yang menempel pada posisi pinggir (Uji SNK, P < 0.05). Sama halnya dengan rata rekruit yang ada di posisi tengah aggregasi besar adalah lebih besar dibandingkan dengan jumlah rekruit dari aggregasi kecil (Uji-SNK, P < 0.05).  Hal yang berbeda, di mana tidak ada perbedaan rata-rata rekruit yang ada di posisi pinggir aggregasi besar dibandingkan dengan yang ada di aggregasi kecil (uji SNK, P>0.05). Faktor yang mempengaruhi penempelan dan rekruit dari agrregasi dengan ukuran berbeda didiskusikan.Kata kunci: Kerang Kotak; Septifer; recruit; aggregate; larva; Tiwoho
Organochlorine Exposure Influences the Cellular Morphology of Red Algae Eucheuma denticulatum (N.L. Burman) Collins & Hervey, 1917 Tumembouw, Sipriana S; Rompas, Rizald M; Lumenta, Cyska; Paulus, James J H; Lasut, Markus T; Mantiri, Desy M H
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 2 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v17i2.57121

Abstract

Graphical Abstract   Highlight Research 1. The research demonstrates organochlorine influences the nanoparticle and the thickness of red algae cellulose. 2. SEM analysis with EDS visualization showed an accumulation of Chlorine (Cl) in the thallus of red alga. 3. This research is essential to prevent and reduce the disposal of organochlorines into the environment because they can accumulate in soil, water, and air. 4. The disposal of organochlorines can also remain for years in the environment, which in turn will accumulate in food chains and negatively affect ecosystems and marine animals.     Abstract Organochlorine compounds not only pollute marine waters but also interfere with the survival of marine biota. Organochlorine compounds absorbed by organisms disrupt metabolism and inhibit cellular functions. The implication of this research is to prevent and reduce the disposal of organochlorines into the environment because they can accumulate in soil, water, and air, remaining for years in the environment. This accumulation can affect food chains and negatively affect ecosystems and marine animals.This research aimed to investigate the impact of organochlorine content on the surface morphology and biomineral characteristics of the red alga E. denticulatum cells. Electron Microscope (SEM) analysis was used to observe particle morphology surfaces down to 1 nm, while Energy Dispersive Spectroscopy (EDS) was used to analyze the specimens' element composition and chemical characteristics. Energy Dispersive Spectroscopy (EDS) analysis revealed that red algae had the highest content of Chlorine (Cl) at 57.20%, followed by Sodium (Na) at 34.84%, Oxygen (O) at 5.21%, Calcium (Ca) at 1.64%, and the lowest element being Sulfur (S) at 1.11%. Overall, this research demonstrates the negative impact of organochlorine content on the morphological structure and biomineral composition of E. denticulatum, highlighting the need for effective measures to prevent and reduce organochlorine pollution in marine environments. Further research could focus on specific mechanisms of organochlorine toxicity and potential remediation strategies.  
Co-Authors Adnan Wantasen Albertus A.Y Jeharu, Albertus A.Y Bawekes, Frisley Rici Dairi Y.L Airin, Dairi Y.L Dewi Telleng, Dewi Edwin D Ngangi Erwin Wuniarto, Erwin Faisal Mujiono Farnis B. Boneka Grace F Mansauda Hengky J Sinjal Hengky Manoppo Henky Manoppo Henneke Pangkey Indra R. N. Salindeho Indra R.N. Salindeho Jhonly Solang Juliaan Ch. Watung Julius Sampekalo Kalesaran, Ockstan J. J. Kaligis, Early Y. Kreckhoff, Reni L. Kurniati Kemer Kusen, Diane J. Makasangkil, Lestari Mamuaya, Gybert Mangkapa, Arliani Mantiri, Desy M. H Manu, Lusia Marina F. O. Singkoh Markus T. Lasut Medy Ompi Mokolensang, Jeffrie F. Monijung, Revol D. Monika Padwa Nanariain, Rian M. Natalie D Rumampuk Nurrahmi I Saiful Nurrahmi Iriani Saiful Ockstan J Kalesaran Ockstan J. Kalesaran Ockstan Kalesaran Palit, Deyti A. Pamula, Doni F. Pangalila, Novelia M.A. Pangkey, Hanneke Pasiali, Andris Paulus, James Pieter A Koroh Rajagukguk, Bulfrit B. Reiny A. Tumbol Revol D Monijung2, Revol D Rimper, Joice R. T. S. L Rompas, Rizald Rompas, Rizald M Runtu, Raymond Y.A. Sambali, Hariyani Sartje Lantu Sedu, Aprini L. Silalahi, Torang J. P. Sinjal, Hengky Sinjal Sinjal, Julius H. Sipriana S Tumembouw Sonny H. Marthen Sumah, Maria Sumtaki, Karel Takou, Putri D. Tatuhe, Familia Tulung, Herol A. Utami, Tiara Veibe Warouw Weismann G.F Lucas, Weismann G.F Winda Mercedes Mingkid Wungkana, Vike V. Yulianty Adipu