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All Journal AQUATIC SCIENCE & MANAGEMENT Media Teknologi Hasil Perikanan JURNAL PESISIR DAN LAUT TROPIS JURNAL ILMIAH PLATAX Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati JURNAL LPPM BIDANG SAINS DAN TEKNOLOGI Journal of Asean Studies on Maritime Issues Jurnal Akuatika Indonesia Briliant: Jurnal Riset dan Konseptual Media Akuakultur Jurnal Ners
Deiske Adeliene Sumilat, Deiske Adeliene
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Medicine & Pharmacology Nursing

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Adaptation Strategies of Traditional Handline Fishermen to Coastal Reclamation in Sario District Makaluas, Marselino M.; Manoppo, Victoria; Mamangkey, Noldy G. F.; Luasunaung, Alfret; Mandagi, Ixchel F.; Malalantang, Sjenny S.; Sumilat, Deiske A.
Jurnal Ilmiah PLATAX Vol. 13 No. 2 (2025): ISSUE JULY-DECEMBER 2025
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v13i2.65929

Abstract

Coastal reclamation in Sario District since 1995 has affected the socioeconomic conditions of coastal communities, particularly handline fishermen. This study aims to identify the socioeconomic conditions of fishermen, analyze internal and external factors using PESTEL and SWOT analyses, and determine appropriate adaptation strategies. The research was conducted from August to November 2025 in three villages within Sario District using a descriptive qualitative and quantitative approach. Results show that fishermen are mostly of productive age with low education levels. Declining income due to distant fishing grounds has driven diversification into side jobs. The PESTEL analysis revealed impacts of reclamation, rising costs, and weak marketing, while SWOT placed fishermen in an aggressive strategy position with strong internal capacity but serious external threats. Adaptive strategies involve pursuing side jobs while preserving traditional fishing livelihoods. Keywords: adaptation strategy; traditional fishermen; coastal reclamation; handline fishing; PESTEL analysis; SWOT analysis Abstrak Reklamasi pantai di Kecamatan Sario sejak 1995 berdampak pada kondisi sosial ekonomi masyarakat pesisir, terutama nelayan pancing ulur. Penelitian ini bertujuan mengidentifikasi kondisi sosial ekonomi nelayan, menganalisis faktor internal dan eksternal menggunakan PESTEL dan SWOT, serta menentukan strategi adaptasi yang tepat. Penelitian dilakukan selama Agustus–November 2025 di tiga kelurahan di Kecamatan Sario dengan pendekatan deskriptif kualitatif dan kuantitatif. Hasil menunjukkan nelayan didominasi usia produktif dan berpendidikan rendah. Penurunan pendapatan akibat jauhnya area tangkap mendorong diversifikasi pekerjaan. Analisis PESTEL mengungkap dampak reklamasi, biaya tinggi, dan lemahnya pemasaran, sementara SWOT menempatkan nelayan pada strategi agresif dengan kekuatan internal baik namun menghadapi ancaman eksternal. Strategi adaptasi dilakukan melalui pekerjaan sampingan tanpa meninggalkan profesi tradisional. Kata kunci: strategi adaptasi; nelayan tradisional; reklamasi pantai; pancing ulur; analisis PESTEL; analisis SWOT
The Effectiveness of Apu Wood Plants (Pistia stratiotes) in Reducing Detergents in Water Suwardy, Moch; Sambali, Hariyani; Rumampuk, Natalie Detty C.; Pangemanan, Novie Pankie Lukas; Sumilat, Deiske A.; Singkoh, Marina Flora Oktavine
Jurnal Ilmiah PLATAX Vol. 13 No. 2 (2025): ISSUE JULY-DECEMBER 2025
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v13i2.65931

Abstract

This study aims to (1) evaluate the concentration of detergents in the water of the Dayanan River, (2) analyze the ability of Pistia stratiotes to reduce detergents, and (3) evaluate the effect of phytoremediation media on the physiological response of carp (Cyprinus carpio). The study used a Complete Random Design (RAL) with a plant contact time treatment of 3 and 6 days on two types of media (river water and well water + 10 mg/L detergent), as well as three replicas. Detergent analysis was carried out using the SNI 06-6989.51-2005 spectrophotometry method. The results showed that the highest concentration of detergent in the Dayanan River was found in the middle (0.0497 mg/L). Pistia stratiotes effectively reduced detergent significantly (p = 0.025) with optimal time on the third day. The fish response showed an increase in the frequency of operculum opening on the third day (p = 0.004) and no mortality was found for 48 hours. These results prove that Pistia stratiotes is effectively used as a natural biofilter to reduce the detergent content in waters. Keywords: detergent, Pistia stratiotes, phytoremediation, common carp (Cyprinus carpio), Dayanan River Abstrak Penelitian ini bertujuan untuk (1) mengevaluasi konsentrasi detergen dalam air Sungai Dayanan, (2) menganalisis kemampuan Pistia stratiotes dalam mereduksi detergen, dan (3) mengevaluasi efek media hasil fitoremediasi terhadap respon fisiologis ikan mas (Cyprinus carpio). Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan perlakuan waktu kontak tanaman 3 dan 6 hari pada dua jenis media (air sungai dan air sumur + detergen 10 mg/L), serta tiga ulangan. Analisis detergen dilakukan menggunakan metode spektrofotometri SNI 06-6989.51-2005. Hasil penelitian menunjukkan bahwa konsentrasi detergen tertinggi di Sungai Dayanan terdapat pada bagian tengah (0,0497 mg/L). Pistia stratiotes efektif mereduksi detergen secara signifikan (p = 0,025) dengan waktu optimal pada hari ketiga. Respon ikan menunjukkan peningkatan frekuensi bukaan operkulum pada hari ketiga (p = 0,004) dan tidak ditemukan mortalitas selama 48 jam. Hasil ini membuktikan bahwa Pistia stratiotes efektif digunakan sebagai biofilter alami untuk menurunkan kandungan detergen di perairan. Kata kunci: detergen, Pistia stratiotes, fitoremediasi, ikan mas (Cyprinus carpio), Sungai Dayanan
Proximate composition of tilapia feed formulated with varying levels of moringa (Moringa oleifera) leaf flour Talunga, Junianto; Kreckhoff, Reni Lucia; Lintang, Rosita A. J.; Sambali, Hariyani; Pangemanan, Novie Pankie Lukas; Salaki, Christina Leta; Sumilat, Deiske Adeliene
AQUATIC SCIENCE & MANAGEMENT Vol. 13 No. 2 (2025): OCTOBER
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jasm.v13i2.64291

Abstract

This study evaluated the effect of incorporating moringa leaf flour (Moringa oleifera) at varying concentrations into feed formulations on the proximate composition of tilapia (Oreochromis niloticus) feed. Five experimental treatments were tested, with moringa leaf flour inclusion levels of 0% (control), 10%, 20%, 30%, and 40%. A proximate analysis was conducted to determine moisture, ash, fat, protein, and crude fiber content. The results indicated that only the control feed (0%) and the feed containing 10% moringa leaf flour met the required protein standards for formulated feed, at 30% and 25%, respectively. Feeds with higher inclusion levels had protein content below the minimum threshold. The lowest crude fiber content (14.98%) was recorded in the 10% treatment, which was lower than that of the control. Ash, fat, and moisture contents remained relatively stable across all treatments and within acceptable ranges for fish feed. The formulation with 10% moringa leaf flour provided the optimal nutritional profile, delivering adequate protein (25%) and the lowest crude fiber (14.98%), thereby meeting nutritional requirements without compromising digestibility. Based on proximate analysis, moringa leaf flour shows potential as an efficient alternative feed ingredient for tilapia aquaculture.
Pengaruh Waktu Penyimpanan terhadap Mutu Ikan Cakalang (Katsuwonus pelamis L.) Asap yang Diberi Pigmen Fikoeritrin dari Alga Halymenia durvillei: Effect of the addition of phycoerythrin pigment from the algae Halymenia durvillei on the quality of smoked skipjack (Katsuwonus pelamis L.) at cold temperatures Gerung, Marselino Stevano; Mantiri, Desy Maria Helena; Taher, Nurmeilita; Salindeho, Netty; Kemer, Kurniati; Sumilat, Deiske Adeliene; Kadang, Nurfadillah
Media Teknologi Hasil Perikanan Vol. 13 No. 2 (2025)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/mthp.13.2.2025.65464

Abstract

Smoked skipjack tuna (cakalang fufu) is a traditional fishery product from North Sulawesi with strong cultural and economic value. Typically, its natural color ranges from reddish to brownish. However, to enhance visual appeal, some producers add synthetic dyes, including Rhodamine-B, which poses potential health risks to consumers. This study aims to evaluate the potential of phycoerythrin pigment derived from the red alga Halymenia durvillei as a safe and functional natural colorant for smoked skipjack tuna, assessed through physicochemical, microbiological, and organoleptic characteristics during cold storage. The research employed a completely randomized design (CRD) with four treatment factors: phycoerythrin concentration, soaking duration, smoking temperature, and smoking duration. Parameters analyzed included moisture content, pH, Total Plate Count (TPC), and organoleptic attributes. Analyses were conducted on day 0 and day 7 of cold storage in vacuum packs. Results showed that moisture content decreased during storage. pH values also declined but did not differ significantly among treatments. TPC tended to increase over storage time but remained far below the maximum allowable microbial limits. Organoleptic evaluation indicated that phycoerythrin addition significantly improved product appearance without reducing acceptance of aroma, taste, or texture. The best overall sensory performance was observed in treatments incorporating phycoerythrin pigment. This study demonstrates that phycoerythrin has strong potential as a safe and effective natural colorant for smoked skipjack tuna, enhancing visual quality while maintaining product stability during storage.Kata kunci: moisture content, pH, phycoerythrin, smoked skipjack tuna, Total Plate Count (TPC)Cakalang asap (cakalang fufu) merupakan produk perikanan tradisional khas Sulawesi Utara yang memiliki nilai budaya dan ekonomi tinggi. Pada umumnya warna yang dihasilkan dari produk cafu merah kecoklatan, untuk meningkatkan minat pembeli para pelaku usaha menggunakan pewarna sintetis. Salah satu pewarna sintetis yang digunakan yaitu Rhodamin-B. Namun, praktik penambahan pewarna sintetis seperti Rhodamin-B untuk memperkuat warna produk berpotensi membahayakan kesehatan konsumen. Penelitian ini bertujuan untuk mengevaluasi potensi pigmen fikoeritrin dari alga merah Halymenia durvillei sebagai pewarna alami fungsional pada cakalang asap ditinjau dari karakteristik fisikokimia, mikrobiologis, dan organoleptik selama penyimpanan dingin. Metode penelitian menggunakan rancangan acak lengkap (RAL) dengan 4 perlakuan yaitu konsentrasi pigmen fikoeritrin, lama perendaman, suhu pengasapan, dan lama pengasapan. Parameter yang dianalisis meliputi kadar air, derajat keasaman (pH), Angka Lempeng Total (ALT), serta uji organoleptik. Pengujian dilakukan pada hari ke-0 dan hari ke-7 penyimpanan suhu dingin dalam kemasan vakum. Hasil penelitian menunjukkan bahwa kadar air mengalami penurunan selama penyimpanan. Nilai pH mengalami penurunan namun tidak menunjukkan perbedaan nyata antar perlakuan. ALT menunjukkan kecenderungan meningkat selama penyimpanan, tetapi masih berada jauh di bawah batas maksimum cemaran mikroba yang ditetapkan. Uji organoleptik menunjukkan bahwa penambahan pigmen fikoeritrin meningkatkan kenampakan produk secara signifikan tanpa menurunkan tingkat penerimaan terhadap aroma, rasa, dan tekstur. Kombinasi penambahan pigmen fikoeritrin terhadap cakalang asap menunjukkan hasil terbaik berdasarkan penilaian sensori baik. Penelitian ini, penambahan pigmen fikoeritrin berpotensi digunakan sebagai pewarna alami yang aman dan efektif pada cakalang asap serta mampu meningkatkan mutu visual dan mempertahankan stabilitas kualitas selama penyimpanan.Kata kunci: angka lempeng total (ALT), cakalang asap, derajat kesamaan (pH), fikoeritrin, kadar air
The Potential of Moringa oleifera Leaves as a Natural Anti-Stress Ingredient in Fish Feed Based on Qualitative Phytochemical Screening Talunga, Junianto; Kreckhoff, Reni Lucia; Lintang, Rosita A. J.; Sambali, Hariyani; Pangemanan, Novie Pankie Lukas; Sumilat, Deiske Adeliene; Salaki, Christina Leta
JURNAL PESISIR DAN LAUT TROPIS Vol. 13 No. 3 (2025): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.13.3b.2025.65055

Abstract

This study aims to evaluate the potential of Moringa oleifera leaves as a natural anti-stress ingredient in fish feed through qualitative phytochemical screening. The extraction was conducted using maceration with 96% ethanol, followed by solvent evaporation using a rotary evaporator and phytochemical assays employing Dragendorff, Wagner, Mayer, AlCl₃, FeCl₃, concentrated H₂SO₄, and froth tests to identify major groups of bioactive metabolites. The results confirmed a very strong presence of alkaloids, along with positive reactions for flavonoids, tannins, saponins, phenolics, and triterpenoids, while steroids were not detected. This metabolite profile indicates antioxidant, immunomodulatory, antimicrobial, and anti-inflammatory activities that are relevant for reducing physiological stress in fish. These findings demonstrate that ethanol extracts of M. oleifera leaves possess practical potential as an anti-stress feed additive capable of enhancing fish resilience to biotic and abiotic stressors in intensive aquaculture. Practically, the use of M. oleifera leaves offers an accessible and economical natural ingredient for the development of functional aquafeed formulations. Keywords: antistress, aquaculture, moringa leaves, phytochemistry, bioactive compounds   Abstrak Penelitian ini bertujuan menilai potensi daun kelor (Moringa oleifera) sebagai bahan anti-stres alami dalam pakan ikan melalui skrining fitokimia kualitatif. Ekstraksi dilakukan menggunakan metode maserasi dengan pelarut etanol 96%, diikuti penguapan menggunakan rotary evaporator dan pengujian fitokimia menggunakan pereaksi Dragendorff, Wagner, Mayer, AlCl₃, FeCl₃, H₂SO₄ pekat, serta uji busa untuk mengidentifikasi golongan metabolit bioaktif. Hasil menunjukkan keberadaan alkaloid sangat kuat, serta flavonoid, tanin, saponin, fenolik, dan triterpenoid dengan reaksi positif, sementara steroid tidak terdeteksi. Profil metabolit tersebut mengindikasikan aktivitas antioksidan, imunomodulator, antimikroba, dan antiinflamasi yang relevan untuk menurunkan stres fisiologis pada ikan. Temuan ini menegaskan bahwa ekstrak etanol daun kelor memiliki potensi aplikatif sebagai aditif pakan antistres yang dapat meningkatkan ketahanan ikan terhadap stres biotik dan abiotik dalam budidaya intensif. Secara praktis, pemanfaatan daun kelor berpeluang mendukung formulasi pakan fungsional berbahan alami yang mudah diperoleh dan ekonomis bagi industri akuakultur.   Kata kunci: antistres, budidaya, daun kelor, fitokimia, senyawa bioaktif
Co-Authors Adnan Wantasen Alfret Luasunaung Angela, Gabriella Caristy Angeline Ngantung, Angeline Angkouw , Esther Dellayani Angkouw, Esther Angmalisang, Ping Astony Annisaqois, Manikmayang Ansar, Azhar Ariansyah Ari Berty Rondonuwu Asthisa, Dias Billy Theodorus Wagey Buana, Muhammad Candra Budiman, Johnny - Calvyn F. A. Sondak, Calvyn F. A. Carolus Paulus Paruntu Dalle, Andi Nuraeni Petta Damongilala, Lena J. Darmono, Oktaviano P. Darwasito, Suria Dedy Octavian Siahaan, Dedy Octavian Defny S. Wewengkang, Defny S. Deysy M. Puansalaing dumas, Davis Wijaksana Extrada Durand, Swenekhe S. Edwin D Ngangi Farnis B. Boneka Fintarji, Rian Fitje Losung Frangky E. Kaparang Gerung, Marselino Stevano Ginting, Elvy Like Grace Debbie Kandou Grace Sanger, Grace Grevo S Gerung Henki Rotinsulu, Henki Henneke Pangkey Henny A Dien Hens Onibala Hidayat, Andre Alfian Ilham Syah, Bahrul Yusuf Nasruddin Indra R. N. Salindeho Indra R.N. Salindeho Indri Manembu Inneke F. M Rumengan Ixchel F Mandagi Janny D. Kusen Johnny Budiman Joice R.T.S.L Rimper Joshian N.W. Schaduw Joula Kusen, Diane Junianto Talunga, Junianto Kadang, Nurfadillah Kalesaran, Ockstan Jurike Kaparang , Frangky Erens Kaparang, Frangky Erens Kaunang, Theresia Margaretha D. Kepel, Rene Ch. Khristin I. F. Kondoy, Khristin I. F. Kreckhoff, Reni L. Kreckhoff, Reni Lucia Kudato, Vania Kurniati Kemer Kusen, Diane Joula Kusuma, Ni Putu Dian Kusumaningrum, Arianda Lasut, Astrid Y. Lawrence J. L Lumingas Lawrence J.L. Lumingas, Lawrence J.L. Lefrand Manoppo Lintang, Rosita AJ Lintang, Rosita Anggreiny Luasunaung, Alfrets Lumingas, Lawrence L.J. Luringunusa, Ekklesia Makaluas, Marselino M. Makapedua, Daisy M Makapedua, Daisy M. Malalantang, Sjenny S. Mamangkey, Noldy G.F Mandagi, Stephanus Mandagi, Stephanus V. Mandagi, Stephanus Vianny Manoppo, Lefran Manoppo, Lefrand - Mantiri, Desy M. H Mantiri, Rose Mantiri, Rose O.S.E. Markus T. Lasut Maryen, Yakob Oskar Masengi, Akira W. R. Masengi, E. I. K.G. Masengi, K.W.A Menajang, Febry I. S. Mentang, Fenny Mewengkang, Theresia Tessa Modaso, Vivanda O.J Mokolensang, Jeffrie Fredrik Molle, Ben Arther Mopay, Maratade Musak, Putra Natalie D Rumampuk Nego E. Bataragoa, Nego E. Ngangi, Edwin Leonardo Apolonio Nity, Elroi Nowin, Edgar Nurmeilita Taher Opa, Samuel Pamikiran, Revols Dolfi Ch Pangemanan, Novie Pankie Lukas Pasodung, Aditya Patra, Frian Paulus, James Pesoth, Christianto Pinontoan, Odie R. Purba, Dhebby Putra, Debriga Rangan, Jety K. Ridwan Lasabuda Robert A. Bara Roeroe, Kakaskasen Andreas Roike Iwan Montolalu Rompas, Rizal M. Rompas, Rizald Rondonuwu, Arie B. Rose O. S. E. Mantiri, Rose O. S. E. Rumampuk, N.D. Rumampuk, Natalie Detty C. Rumengan, Antonius Petrus Salaki, Christina Leta Salindeho, Netty Sambali, Hariyani Sambali, Haryani Sambali, M.Sc, Hariyani Sandra Tilaar Saragih, Debby Dyanessa Sarif Hidayat, Sarif Simangunsong, Martua Pinondang Singkoh, Marina Flora Oktavine Sinjal, Annita Ch. Sipriana S. Tumembouw Stenly Wullur Suria Darwisito, Suria Suwardy, Moch Suzanne L Undap Tahulending, Jane Maria Fransiska Tangkudung, Maureen J. N. N. Tuyu, Adel M. Ulus, Frangky Octavian Undap , Suzanne Lydia Undap, Nani I.J Veibe Warouw Verly Dotulong, Verly Victoria E. N. Manoppo Wenseslaus Fransiscus Makawaehe, Wenseslaus Fransiscus Wilhelmina Patty Wulur, Stenly Zebua, Nistiarni