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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 Jurnal Penelitian Pendidikan IPA (JPPIPA) Media Akuakultur
Deiske Adeliene Sumilat, Deiske Adeliene
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry 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 Materials Science & Nanotechnology Physics

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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
Coral and Reef Fish Biodiversity in the Waters of Bangka Island, North Sulawesi Mantiri, Rose O. S. E.; Septianto, Andarum; Ridwan, Moh.; Suputri, Putu Ayu; Podung, Thania Theresia; Kalmareuro, Vennda Uno; Sumilat, Deiske A.
Jurnal Ilmiah PLATAX Vol. 14 No. 1 (2026): ISSUE JANUARY-JUNE 2026
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v14i1.66620

Abstract

This study documents and identifies the diversity of coral reefs and reef fish species in the waters of Bangka Island, North Sulawesi, a coastal area rich in marine biodiversity and ecologically and economically important to the local community. The Underwater Visual Census (UVC) method was used through snorkeling and diving at depths of less than 18 meters at three locations (Coral Eye house reef, Tanjung Husi, and Linggua) from March 14 to April 4, 2025. Visual data were collected and identified in the Coral Eye Library. The results indicate that the coral reef ecosystem around Coral Eye is dominated by branching corals (Acropora) and stony corals (massive), which are important habitats for reef fish. The reef fish community is dominated by the families Pomacentridae and Chaetodontidae at depths of less than 20 meters. Fish were grouped into indicator fish (family Chaetodontidae with 6 species), target fish (5 families with 10 species, including Serranidae, Mullidae, Siganidae, Labridae, and Scaridae), and major groups (14 families with 34 species). This study provides strategic recommendations for maintaining and preserving coral reef ecosystems and reef fish diversity on Bangka Island. Keywords: Coral reefs; Reef fish; Bangka Island Abstrak.  Penelitian ini mendokumentasikan dan mengidentifikasi keanekaragaman terumbu karang dan spesies ikan karang di perairan Pulau Bangka, Sulawesi Utara, sebuah kawasan pesisir yang kaya akan keanekaragaman hayati laut dan penting secara ekologis serta ekonomis bagi masyarakat setempat. Menggunakan metode Underwater Visual Census (UVC) melalui snorkeling dan penyelaman pada kedalaman kurang dari 18 meter di tiga lokasi (Coral Eye house reef, Tanjung Husi, dan Linggua) dari 14 Maret hingga 4 April 2025. Data visual dikumpulkan dan diidentifikasi di Perpustakaan Coral Eye. Hasil penelitian menunjukkan bahwa ekosistem terumbu karang di sekitar Coral Eye didominasi oleh terumbu karang bercabang (Acropora) dan terumbu karang batu (massive), yang merupakan habitat penting bagi ikan karang. Komunitas ikan karang didominasi oleh famili Pomacentridae dan Chaetodontidae pada kedalaman kurang dari 20 meter. Ikan dikelompokkan menjadi ikan indikator (famili Chaetodontidae dengan 6 spesies), ikan target (5 famili dengan 10 spesies seperti Serranidae, Mullidae, Siganidae, Labridae, dan Scaridae), dan kelompok major group (14 famili dengan 34 spesies). Penelitian ini memberikan rekomendasi strategis untuk menjaga dan melestarikan ekosistem terumbu karang dan keanekaragaman ikan karang di Pulau Bangka. Kata kunci: Terumbu karang; Ikan karang; Pulau Bangka
Species and Density of Limpets (Patellogastropoda) in The Intertidal Rocky Shore Akaiwa Poluan, Irene; Rumengan, Inneke F.M.; Paruntu, Carolus P.; Bara, Robert A.; Sumilat, Deiske A.; Boneka, Farnis B.
JURNAL PESISIR DAN LAUT TROPIS Vol. 14 No. 1 (2026): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.14.1.2026.66339

Abstract

Rocky intertidal shores are dynamic coastal ecosystems characterized by strong environmental gradients that generate distinct patterns of organism zonation. Limpets (Patellogastropoda) play a crucial role as primary herbivores and ecological indicators in these habitats. This study aimed to examine species composition and density of limpets in the upper and lower intertidal zones of the rocky intertidal shore of Akaiwa, Tomioka, Amakusa, Japan. The research was conducted from February to March 2025. Sampling was conducted using a quadrat sampling method with quadrats measuring 25 cm × 25 cm, randomly placed within a 10 m × 15 m study area across the upper and lower intertidal zones. Limpet specimens were identified based on shell morphological characteristics, and species density was calculated and statistically compared between zones using a t-student test. The results recorded eight limpet species belonging to the families Lottidae and Nacellidae, with seven species occurring in the upper zone and six species in the lower zone. Limpet density in the upper intertidal zone ranged from 1.60 to 20.80 ind/m² and was dominated by Lottia tenuisculpta, whereas the lower zone exhibited higher densities ranging from 1.60 to 28.80 ind/m², with a significant dominance of Cellana toreuma. The study concludes that limpet community structure is strongly influenced by vertical intertidal zonation. Further long-term studies are recommended to elucidate temporal dynamics of limpet communities in relation to seasonal variation and environmental change. Keywords: Amakusa, density, limpet, Akaiwa rocky shore, intertidal zonation   Abstrak Pantai intertidal berbatu merupakan ekosistem pesisir yang dinamis dengan gradien lingkungan yang kuat, sehingga membentuk pola zonasi organisme yang khas. Limpet (Patellogastropoda) berperan penting sebagai herbivora utama dan indikator ekologis pada ekosistem ini. Penelitian ini bertujuan untuk mengkaji komposisi jenis dan kepadatan limpet pada zona atas dan zona bawah pantai rocky intertidal Akaiwa, Tomioka, Amakusa, Jepang. Penelitian ini dilaksanakan pada Februari-Maret 2025. Pengambilan sampel dilakukan dengan metode quadrat sampling menggunakan kuadrat berukuran 25 cm × 25 cm yang ditempatkan secara acak di area 10 m × 15 m pada zonasi intertidal bagian atas dan bawah. Spesimen limpet diidentifikasi berdasarkan karakter morfologi cangkang, kemudian dianalisis kepadatan jenis dan diuji perbedaannya antar zona menggunakan uji t-student. Hasil penelitian menunjukkan bahwa delapan spesies limpet dari famili Lottidae dan Nacellidae teridentifikasi, dengan tujuh spesies pada zona atas dan enam spesies pada zona bawah. Kepadatan limpet di zona atas berkisar antara 1,60-20,80 ind/m² dan didominasi oleh Lottia tenuisculpta, sedangkan zona bawah memiliki kepadatan lebih tinggi, yaitu 1,60-28,80 ind/m², dengan dominasi Cellana toreuma yang berbeda nyata secara statistik. Kesimpulan penelitian menunjukkan bahwa struktur komunitas limpet dipengaruhi kuat oleh zonasi vertikal intertidal. Disarankan penelitian lanjutan dilakukan secara temporal untuk memahami dinamika komunitas limpet terhadap variasi musim dan perubahan lingkungan. Kata kunci: Amakusa, kepadatan, limpet, pantai berbatu Akaiwa, zonasi intertidal
Mapping Plankton Community Structure in North Sulawesi Waters Using Ecological Diversity Indices as Indicators of Marine Ecosystem Health Mantiri, Rose O.S.E.; Sumilat, Deiske A.; Undap, Suzanne L.; Bonaventura, Rowen; Rabuka, Haryati; Koloay, Tesalonika S.
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.14387

Abstract

Plankton communities play a crucial role in marine ecosystems and are widely used as bioindicators of environmental quality. This study aimed to map plankton community structure in several coastal waters of North Sulawesi and evaluate their potential as indicators of marine ecosystem health. Plankton samples were collected from Bunaken, Lembeh Strait, Amurang, Belang, and Likupang using standard plankton net tows. Community structure was analyzed using species composition, abundance, Shannon–Wiener diversity index (H′), evenness (E), and dominance (D). The results showed clear spatial variation in plankton community structure among study sites. Higher diversity values were recorded in Bunaken (H′ = 2.78; E = 0.81; D = 0.18) and Lembeh Strait (H′ = 2.65; E = 0.79; D = 0.21), indicating relatively stable marine conditions. In contrast, Likupang exhibited lower diversity and higher dominance (H′ = 1.43; E = 0.52; D = 0.39), suggesting greater environmental stress. These patterns demonstrate that plankton community indices are sensitive indicators of ecosystem condition in tropical coastal waters. The findings also highlight the potential use of plankton ecological data as contextual learning resources in science education, particularly for teaching marine ecosystem dynamics, biodiversity, and environmental monitoring using real environmental datasets from local coastal ecosystems
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 Bonaventura, Rowen Buana, Muhammad Candra Budiman, Johnny - Calvyn F. A. Sondak, Calvyn F. A. Carolus Paulus Paruntu Damongilala, Lena J. Darmono, Oktaviano P. Darwasito, Suria Dedy Octavian Siahaan, Dedy Octavian Defny Silvia Wewengkang 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 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 Kalmareuro, Vennda Uno Kaparang , Frangky Erens Kaparang, Frangky Erens Kepel, Rene Ch. Khristin I. F. Kondoy, Khristin I. F. Koloay, Tesalonika S. 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 Moh. Ridwan, Moh. Mokolensang, Jeffrie Fredrik Molle, Ben Arther Mopay, Maratade Musak, Putra Natalie D Rumampuk Nego E. Bataragoa, Nego E. Ngangi, Edwin Leonardo Apolonio Nistiarni Zebua Nity, Elroi Nowin, Edgar Nurmeilita Taher Opa, Samuel Pamikiran, Revols Dolfi Ch Pangemanan, Novie Pankie Lukas Pasodung, Aditya Patra, Frian Paulus, James Pesoth, Christianto Podung, Thania Theresia Poluan, Irene Purba, Dhebby Putra, Debriga Rabuka, Haryati 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 Septianto, Andarum Simangunsong, Martua Pinondang Singkoh, Marina Flora Oktavine Sinjal, Annita Ch. Sipriana S. Tumembouw Stenly Wullur Suputri, Putu Ayu Suria Darwisito, Suria Suwardy, Moch Suzanne L Undap 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