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INDONESIA
JURNAL ILMIAH PLATAX
Published by Universitas Sam Ratulangi
ISSN : 23023589     EISSN : -     DOI : -
Core Subject : Social,
Environmental Science
Mencakup Penulisan yang berhubungan dengan pelaksanaan penelitian yang dilakukan secara mandiri, atau kelompok, dan berdasarkan Ruang Lingkup Pengelolaan Wilayah Pesisir, Konservasi, Ekowisata, dan Keanekaragaman Hayati Perairan.
Arjuna Subject : -
Articles 488 Documents
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Mollusks attached to natural mangrove roots and silvofisheries in Nabire Papua: to what extent are they different Maitindom, Frits A; Mamangkey, Gustaf; Boneka, Farnis B. Boneka; Lasut, Markus T.; Mantiri, Rose O. S. E.; Bara, Robert. A.
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.57758

Abstract

The research aim on natural mangrove forests and silvofishery is to determine the community structure of attached invertebrates to silvofishery and natural mangrove ecosystems. I was comparing the community structure of attached invertebrates in mangrove silvofishery and natural mangrove ecosystems. Sampling was done by dredging the mangrove root skin, the collected samples were then sieved using a sieve with a mesh size of 1.0 mm using salted water and then put into sample bottles and preserved using 70% alcohol solution, then the samples were identified in the laboratory. The chemical physical parameters at both locations are within the normal range in the development of mangrove-attaching invertebrates. The two study sites contained 4 families (Potamididae, Littorinidae, and Muricidae) 7 species of which 3 species were in natural mangroves Littoraria scabra (Linnaeus, 1758), Nerita planospira (Anton, 1838), and Terebralia palustris (Linnaeus, 1767) compared to mangroves In Silvofishery there are 4 species of Chicoreus capicinus (Lamarck, 1822), Cerithidea quadrata (G. B. Sowerby II, 1866), Nerita picea (Recluz, 1841), and Cerithidea obtuse (Lamarck, 1822). The density of the mangrove-attaching anvertebtata in the mangrove forest of Sylvofishery was the highest, namely L. scabra (0.14 ind/m2 ) and the lowest was T. palustris (0.01 ind/m 2 ) Attachment invertebrate diversity at both study sites was in a low condition, and high dominance and uniformity. Keywords: Biofouling, artificial and Silvofishery, Nabire Abstrak Tujuan dari penelitian yang dilakukan pada hutan mangrove alami dan Silvofishery adalah Mengetahui struktur komunitas moluska pada ekosistem mangrove silvofishery dan mangrove alami. Membandingkan struktur komunitas moluska pada ekosistem mangrove silvofishery dan mangrove alami. Pengambilan sampel dengan mengkeruk kulit akar mangrove, sampel yang telah terkumpul kemudian dimasukan kedalam botol sampel dan diawetkan menggunakan larutan alkohol 70%, kemudian sampel diidentifikasi di Laboratorium. Parameter fisik kimia pada kedua lokasi dapat dikatakan dalam range yang normal dalam perkembangan moluska mangrove. Kedua lokasi penelitian terdapat 4 family (Potamididae, Littorinidae, dan Muricidae) 7 spesies dimana 3 spesies pada mangrove alami (Littoraria scabra (Linnaeus, 1758), Nerita planospira (Anton, 1838), dan Terebralia palustris (Linnaeus, 1767) sedangkan pada mangrove Silvofishery terdapat 4 spesies Chicoreus capicinus (Lamarck, 1822), Cerithidea quadrata (G. B. Sowerby II, 1866), Nerita picea (Recluz, 1841), dan Cerithidea obtuse (Lamarck, 1822). Kepadatan moluska mangrove pada hutan mangrove Sylvofishery tertinggi yaitu L. scabra (0,14 ind/m2 ) dan terendah yaitu T. palustris (0,01 ind/m 2 ) Keanekaragaman moluska pada kedua lokasi penelitian barada pada kondisi rendah, dan dominansi tinggi dan seragaman. Kata kunci: Moluska, Mangrove Alami dan Silvofishery, Nabire
Land Suitability and Carrying Capacity Analysis Of The Mangrove Ecotourism At Sarawet Village, East Likupang District, North Minahasa Regency Tangkudung, Maureen J. N. N.; Schaduw, Joshian N. W.; Sondak, Calvyn F.A.; Wantasen, Adnan S.; Sumilat, Deiske A.; Rondonuwu, Arie B.; Luasunaung, Alfrets
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.57781

Abstract

The coastal area of Sarawet Village, East Likupang District, North Minahasa Regency, North Sulawesi Province has a mangrove forest covering an area of 379 hectares. Apart from being a living habitat for marine biota, this large area of mangrove is also an ecotourism destination. The purpose of this research is to determine the suitability of mangrove lands as ecotourism areas; Determine the ecological carrying capacity of the area for mangrove ecotourism activities; Assess public perceptions regarding the benefits of mangrove ecosystems and their potential to be developed as ecotourism destinations. The research method is a survey describing ecological, socioeconomic, institutional, and infrastructure conditions. Data collection is grouped into primary data and secondary data. Primary data collection was carried out through direct observation in the field by measuring the ecological potential of mangroves, visual observation of biota, and information from the community obtained directly at the research location through structured interviews with respondents. Based on the results of the study, the Tourism Suitability Index (IKW) value for the Sarawet Village mangroves was 2.73, which indicates the Very Suitable category for being developed as a mangrove river ecotourism area, as well as the public's perception of the benefits of the mangrove ecosystem and its potential to be developed as an ecotourism destination is very good. so it is hoped that this can improve the welfare of the existing community. Keywords: Mangroves, Ecotourism, Sarawet Abstrak Kawasan pesisir Desa Sarawet Kecamatan Likupang Timur Kabupaten Minahasa Utara Provinsi Sulawesi Utara memiliki hutan mangrove seluas 379 hektar, keberadaan mangrove yang luas ini selain menjadi habitat hidup bagi biota laut juga sebagai tujuan ekowisata. Tujuan dan manfaat penelitian ini adalah menentukan kesesuaian lahan mangrove sebagai kawasan ekowisata; Menentukan daya dukung ekologis kawasan untuk kegiatan wisata mangrove ekowisata; Mengkaji persepsi masyarakat tentang manfaat ekosistem mangrove dan potensinya untuk dikembangkan sebagai tujuan ekowisata. Metode penelitian yang digunakan yaitu melakukan survei untuk mendeskripsikan kondisi ekologi, sosial ekonomi, kelembagaan dan infrastruktur. Pengumpulan data dikelompokkan menjadi data primer dan data sekunder. Pengumpulan data primer dilaksanakan melalui pengamatan langsung di lapangan dengan melakukan pengukuran potensi ekologi mangrove, pengamatan biota secara visual dan informasi dari masyarakat diperoleh langsung di lokasi penelitian melalui wawancara secara terstruktur dengan responden. Berdasarkan hasil kajian diperoleh nilai Indeks Kesesuaian Wisata (IKW) mangrove Desa Sarawet yakni sebesar 2,73 yang menunjukkan kategori Sangat Sesuai untuk dapat dikembangkan sebagai Kawasan ekowisata sungai mangrove, serta persepsi masyarakat tentang manfaat ekosistem mangrove dan potensinya untuk dikembangkan sebagai tujuan ekowisata adalah sangat baik sehingga diharapkan hal tersebut dapat meningkatkan kesejahteraan masyarakat yang ada. Kata Kunci : Mangrove, Ekowisata, Sarawet
Study of the Potential and Development of a Mangrove Ecosystem Based on Ecotourism in Pinasungkulan Village, Minahasa Regency Bonde, Alis Febri; Boneka, Farnis B. Boneka; Schaduw, Joshian N. W.; Makapedua, Daisy Monica; Rumengan, Antonius Petrus; Manoppo, Victoria E. N.
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.57782

Abstract

This research aims to describe the ecological, socio-economic, institutional, and infrastructural conditions. Primary data collection was carried out through direct observation in the field, measuring the potential of mangrove forests, observing biota, and conducting direct interviews with local communities and relevant stakeholders. Secondary data collection was conducted by gathering documents from previous studies/research, legislation, and other supporting data. Four types of mangroves were found: Rhizophora apiculata, Rhizophora mucronata, Sonneratia alba, and Avicennia marina. The highest species density was Rhizophora apiculata with 6.56 individuals/m², the highest species frequency was 1 for Rhizophora apiculata, the highest species coverage value was Sonneratia alba at 34.02, and the highest Importance Value Index (IVI) was Rhizophora apiculata at point 3 with a value of 226.98. The mangrove diversity index (H') was 2.66, indicating a moderate category and the highest evenness index was at point 2, with a value of 0.92. The Mangrove Tourism Suitability Index (IKW) value was 2.36, indicating a Suitable category. The mangrove area in Pinasungkulan Village can accommodate a 350 square meter mangrove tracking area. The Area Carrying Capacity (DDK) is 56 people per day, with an operational time of 8 working hours per day. The study on community perceptions regarding the benefits of the mangrove ecosystem and its potential to be developed as an ecotourism destination is very positive, and it is expected that this can improve the community's welfare in Pinasungkulan Village. Keywords: ecotourism, mangroves, carrying capacity, suitability, Pinasungkulan Abstrak Penelitian ini bertujuan mendeskripsikan kondisi ekologi, sosial ekonomi, kelembagaan dan infrastruktur. Pengumpulan data primer dilakukan melalui pengamatan langsung (observasi) di lapangan, melalui pengukuran potensi hutan mangrove, pengamatan biota dan wawancara langsung dengan masyarakat lokal dan pihak terkait. Pengumpulan data sekunder dilakukan dengan cara mengumpulkan dokumen hasil studi/penelitian, peraturan perundang-undangan dan data pendukung lainnya. Terdapat 4 jenis mangrove yang ditemukan yaitu Rhizophora apiculata, Rhizophora mucronata, Sonneratia alba dan Avicennia marina. Nilai kerapatan jenis tertinggi adalah Rhizophora apiculata yaitu 6,56 individu/m², frekuensi jenis tertinggi adalah 1 pada jenis Rhizophora apiculata, nilai penutupan jenis tertinggi Sonneratia alba yaitu 34,02, Indeks Nilai Penting (INP) tertinggi jenis Rhizophora apiculata di titik 3 dengan nilai 226,98, indeks keanekaragaman mangrove H’= 2,66 dengan kategori sedang, indeks kemerataan tertinggi pada titik 2 yaitu 0,92. Nilai Indeks Kesesuaian Wisata (IKW) mangrove 2,36, menunjukkan kategori Sesuai. Kawasan mangrove Desa Pinasungkulan dapat dibangun tracking mangrove seluas 350 meter². Daya Dukung Kawasan (DDK) adalah 56 orang/hari dengan waktu operasional 8 jam kerja per hari. Kajian persepsi masyarakat tentang manfaat ekosistem mangrove dan potensinya untuk dikembangkan sebagai tujuan ekowisata sangat baik sehingga diharapkan hal tersebut dapat meningkatkan kesejahteraan masyarakat di Desa Pinasungkulan. Kata kunci: ekowisata, mangrove, daya dukung, kesesuaian, pinasungkulan
The role of diversity structure, dominance, and diameter of mangrove trees and mitigation of coastal abrasion at Darunu Village Mandagi, Conny M.; Lepar, Meita J. W.; Timpal, Tartius; Rompas, Vonny O.; Talimpong, Apriando; Gumolili, Youdi; Mait, Nicolaas H.
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.58232

Abstract

Mangrove forests are vital for protecting coastal abrasion. This study investigates the diversity, dominance, and diameter distribution of Darunu Village mangroves and their potential to reduce coastal abrasion. Transect sampling was used and conducted at 2 stations with 3 observation sites. Three mangrove genera were found in Darunu Village, Rhizophora with 803 trees or 1.72%, Sonneratia with 95 individuals or 0.92%, and Avicennia with 33 individuals or 0.07%.  The Diversity Index (H') value at both stations was H’ = 0.27. or they were classified as a low category. According to those 3 mangrove genera at Darunu Village, the Rhizophora mangrove was dominant with a total of 1,881 individuals (D = 0,87). The diameter of all mangrove trees was ca. > 20 cm indicating potentially reduced wave energy. The suggestion needs to be special attention from the North Minahasa Government by providing mangrove cultivation and care for existing mangroves. The diversity of mangroves in Darunu Village was still low, can be overcome by planting other mangrove species that potentially the natural properties of mangroves in Darunu Village and other environmental factors. Field observations suggested the mangrove forest effectively mitigates coastal abrasion, This study underscores the importance of maintaining mangrove diversity for effective coastal protection. Keywords: Mangrove, Diversity, Dominance, Diameter Distribution,  Coastal Abrasion, Coastal Protection. Abstrak Hutan mangrove penting untuk perlindungan abrasi pantai. Penelitian ini meneliti keanekaragaman, dominasi, dan distribusi diameter mangrove di Desa Darunu, serta potensinya untuk mengurangi abrasi pantai. Transek sampling digunakan dan dilakukan di 2 stasiun dengan 3 lokasi observasi. Tiga genus mangrove ditemukan di Desa Darunu, yaitu Rhizophora sebanyak 803 pohon atau 1,72%, Sonneratia sebanyak 95 individu atau 0,92% dan Avicennia sebanyak 33 individu atau 0,07%.  Nilai Diversity Index (H') di kedua stasiun adalah H' = 0,27. atau diklasifikasikan sebagai kategori rendah. Menurut 3 genus mangrove di Desa Darunu tersebut,  mangrove Rhizophora mendominasi dengan jumlah 1.881 individu (D = 0,87). Diameter semua pohon mangrove sekitar > 20 cm terindikasi berpotensi mengurangi energi gelombang. Saran perlu mendapat perhatian khusus dari Pemerintah Minahasa Utara dengan menyediakan budidaya mangrove dan perawatan mangrove yang ada. Keanekaragaman mangrove di Desa Darunu masih rendah, dapat diatasi dengan penanaman spesies mangrove lain yang berpotensi menjadi sifat alami mangrove di Desa Darunu dan faktor lingkungan lainnya. Pengamatan lapangan menunjukkan bahwa hutan mangrove secara efektif mengurangi abrasi pantai, Studi ini menggarisbawahi pentingnya menjaga keanekaragaman mangrove untuk perlindungan pantai yang efektif. Kata kunci : Mangrove, Keanekaragaman, Dominance, Distribusi diameter,  Abrasi Pantai, Perlindungan pantai.
Study On Nematocysts Of Scleractinia Coral, Stylophora subseriata From Coral Reef Area In The Coast Of Bulutui, North Minahasa Kamuntuan, Reffando Alfaro Fabio Fabien; Paruntu, Carolus Paulus; Roeroe, Kakaskasen Andreas; Lintang, Rosita Anggreiny J; Manembu, Indri Shelovita; Schaduw, Joshian Nicolas William
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.58486

Abstract

This study aims to identify the type, size dimension, and composition of nematocysts from the Scleractinia coral, Stylophora subseriata. This study was carried out from March to May 2023. Observations and measurements of nematocyst cells were conducted using an Optika 4083 B3 microscope connected to a computer equipped with Optika View 7 software. S. subseriata has three main types of nematocyst, i.e., type I micro basic p-mastigophore (MpM- I), type II micro basic p-mastigophore (MpM-II) and micro basic b-mastigophore (MbM).  Type MpM-I has an average capsule length of 182.10 µm, capsule width of 38.98 µm, and shaft length of 76.45 µm;  MpM-II has an average capsule length of 166.72 µm, capsule width of 41.60 µm, and shaft length of 108.48 µm; and MbM has an average capsule length of 154.84 µm and capsule width of 30.96 µm. The nematocysts composition consists of MpM-I 26.67 %, MpM-II 23.33 %, and MbM 50.00 %.  The MbM type is nematocyst dominant in this coral species.  Future study is recommended to examine the comparative characteristics of nematocysts from S. subseriata with other species of corals in the same genus to determine the specific nematocyst of each type of coral with the role of their particular types of nematocyst. Keywords: Bulutui coast, nematocyst, North Minahasa, Scleractinia, Stylophora subseriata Abstrak Penelitian ini bertujuan untuk mengidentifikasi tipe, dimensi ukuran dan komposisi nematosit dari karang Scleractinia, Stylophora subseriata. Studi ini dilakukan dari Maret - Mei 2023. Pengamatan dan pengukuran sel nematosit dilakukan menggunakan mikroskop Optika 4083 B3 yang terhubung dengan komputer yang dilengkapi software Optika View 7. S. subseriata memiliki tiga tipe nematosit utama, yaitu microbasic p-mastigophore tipe I (MpM-I), microbasic p-mastigophore tipe II (MpM-II) dan microbasic b-mastigopore (MbM).  Tipe MpM-I memiliki rata-rata panjang kapsul 182,10 µm, lebar kapsul 38,98 µm, dan panjang tangkai 76,45 µm;  MpM-II memiliki rata-rata panjang kapsul 166,72 µm, lebar kapsul 41,60 µm, dan panjang tangkai 108,48 µm; serta MbM dengan panjang kapsul 154,84 µm dan lebar kapsul 30,96 µm. Komposisi nematositnya terdiri dari MpM-I 26,67 %, MpM-II 23,33 % dan MbM 50.00 %.  Tipe MbM adalah nematosit yang dominan dalam spesies ini.  Penelitian selanjutnya disarankan untuk meneliti perbandingan antara karakteristik nematosit dari S. subseriata dengan jenis karang lainnya dalam satu genus untuk mengetahui nematosit spesifik dari masing-masing jenis karang tersebut sehubungan dengan peran dari tipe-tipe nematosit spesifiknya.       Kata kunci: Minahasa Utara, nematosit, Pesisir Bulutui, Scleractinia, Stylophora subseriata
Study Of The Maintenance, Certification And Operation System Of The Tug Boat Anugerah Lautan 5 On Sailing Safety Ansar, Azhar Ariansyah; Rusman, Rusman; Irawan, Santun; Rakka, Stevian G. A.
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.58619

Abstract

The implementation of the ship maintenance management system, certification, and ship operation on the ship Tug Boat Anugerah Lautan 5 did not run optimally, which impacted the less-than-optimal condition of various training ship equipment because the crew did not carry out the ship maintenance system according to the procedure, resulting in the incident that the ship's anchor left winch operation did not function optimally when the ship was anchored in Belang Port, Southeast Minahasa. This study aims to identify and analyze the positive and significant effect of the planned maintenance system on shipping safety. The primary data collection methods used in this study were questionnaires and interviews. In this study, data processing and presentation were in the form of diagrams and path analysis with structural equation modeling (SEM-PLS) using SmartPLS. From the results of the data analysis, the R-square value of shipping safety (Y) is 0.433, which means that the maintenance system (X1) and ship maintenance (X2) can affect shipping safety (Y) by 43.30%. Ship maintenance (X1) has a significant effect on safe sailing (Y), with P-values = 0.033 > 0.05 (hypothesis accepted). Certification (X2) has a considerable impact on safe sailing (Y), with P-values = 0.036 > 0.05 (hypothesis accepted). The operation of ship (X3) has a significant effect on safe sailing (Y), with a P-value of 0.000 > 0.05 (hypothesis accepted). As a result of the analysis, it was found that the planned maintenance system has a significant effect on shipping safety. Keywords: Maintenance System; Sertification; Safe Sailing, ship.
Vibriosis In Asian Seabass Lates calcarifer (Bloch, 1790): Arif Maulana Abduh; Moh Kelvin Makus; Rizki Djudin; Nuriman A Anwar; Taufiq Abdullah
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.58876

Abstract

Aquaculture production activities have been experiencing a significant increase. Various economically valuable fish commodities have been developed, including Asian seabass, barramundi, and giant seaperch. Asian seabass farming offers advantages such as relatively fast growth, ease of maintenance, and high tolerance to environmental changes. However, the sustainability of Asian seabass farming faces challenges, including vibriosis infection. This disease can lead to economic losses due to mortality and has been reported in several Asian seabass-producing countries. This review discusses information on the causative agents of vibriosis, clinical symptoms, vibriosis control, and prevention through immunostimulants, prebiotics, and vaccination in Asian seabass. The primary causative agents of vibriosis in Asian seabass include Vibrio anguillarum, V. harveyi, and V. alginolyticus. Clinical symptoms include anorexia, darkening of body coloration, lesions around the anus and fin bases, scale loss and muscle degradation, hemorrhaging throughout the body, particularly at fin bases, ulcers on the operculum, kidney congestion, and liver necrosis. Infections caused by V. anguillarum, V. harveyi, and V. alginolyticus can be effectively managed using medicinal plants, probiotics, and vaccination, which have shown promising results in Asian seabass. Keywords: Lates calcarifer; Vibriosis; Vibrio alginolyticus; Vibrio anguillarum; Vibrio harveyi.   Abstrak Produksi kegiatan akuakultur terus mengalami peningkatan yang signifikan. Berbagai komoditas ikan bernilai ekonomi telah dikembangkan salah satunya ikan kakap putih yang juga dikenal sebagai Barramundi, Asian seabass dan Giant seaperch. Budidaya kakap putih memiliki keunggulan, yaitu pertumbuhannya yang relatif cepat, mudah dipelihara dan mempunyai toleransi yang tinggi terhadap perubahan lingkungan. Namun, keberlanjutan budidaya kakap putih tidak terlepas dari berbagai kendala, salah satunya serangan penyakit vibriosis. Penyakit ini dapat mengakibatkan kerugian ekonomi akibat kematian dan telah dilaporkan pada pada beberapa negara produsen kakap putih. Ulasan ini membahas informasi mengenai agen penyebab vibriosis, gejala klinis, pengendalian vibriosis, serta pencegahan melalui pemanfaatan imunostimulan, prebiotik dan vaksinasi pada kakap putih. Agen utama penyebab vibriosis pada kakap putih adalah Vibrio anguillarum, V. harveyi, dan V. alginolyticus. Gejala klinis yang ditimbulkan adalah anoreksia, perubahan warna tubuh menjadi lebih gelap, lesi di sekitar anus dan pangkal sirip, kerontokan pada sisik dan degradasi otot, hemoragi di seluruh tubuh terutama di pangkal sirip, dan ulserasi di bagian operkulum, serta kongesti pada ginjal dan nekrosis pada hati. Infeksi V. anguillarum, V. harveyi, dan V. alginolyticus dapat dikendalikan dengan pemanfaatan tanaman obat, probiotik dan vaksinasi yang telah terbukti pada ikan kakap putih. Kata kunci: Lates calcarifer; Vibriosis; Vibrio alginolyticus; Vibrio anguillarum; Vibrio harveyi.
Description of Yellowfin Tuna Processing Akerina, Febrina Olivia; Kour, Femsy; Radja, Christiani Melitia; Pesondolang, Loisa Vebiola
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.59677

Abstract

Morotai Island Regency has very abundant potential, namely tuna. The abundance of tuna fishermen's catches has become an opportunity to develop tuna loin processing, one of which is at PT. Harta Samudra Morotai. This research aims to describe the processing process carried out at PT. Harta Samudra. PT. Harta Samudra has 90 employees, 84 of whom are residents. Of the total employees, 11 are permanent employees and the other 79 are daily employees. The tuna loin processing process refers to SNI 01-4104.3-2006: receiving, beheading, butchering, trimming, gas room, chiller, retouching, packing, stuffing, and laboratory analysis. Keywords: Yellowfin Tuna; Frozen Loin Tuna; PT. Harta Samudra Abstrak Kabupaten Pulau Morotai, memiliki potensi yang sangat melimpah, yakni tuna. Melimpahnya hasil tangkapan nelayan tuna, menjadi peluang dikembangkannya pengolahan Tuna loin salah satunya di PT. Harta Samudra Morotai. Penelitian ini bertujuan untuk mendeskripsikan proses pengolahan yang dilakukan di PT. Harta Samudra. PT. Harta samudra memiliki 90 karyawan, 84 diantaranya merupakan penduduk lokal. Dari total keseluruhan karyawan 11 diantaranya merupakan karyawan tetap dan 79 lainnya merupakan karyawan harian. Proses pengolahan tuna loin mengacu pada SNI 01-4104.3-2006 yakni receiving, deheading, butchering, trimming, gas room, chiller, retouching, packing, stuffing dan analisis laboratorium. Kata Kunci : Tuna Ekor Kuning; Tuna Loin Beku; PT. Harta Samudra
Morphometry of Limpet, Patelloida heroldi (Dunker, 1861) on Exposed and Sheltered Intertidal Stony Shores at Magarizaki Beach, Amakusa, Japan Roring, Jordan Iglesias; Paruntu, Carolus Paulus; Rumengan, Inneke Fenny Melke
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.58533

Abstract

This study aims to determine the differences in shell dimensions (length, width, and height) of Patelloida heroldi between two locations: an exposed intertidal stony shore and a sheltered intertidal stony shore. The research was conducted at Magarizaki Beach, Tomioka Peninsula, Amakusa, Japan, over two months from March to April 2024. Sampling was conducted using 25 x 25 cm quadrats along a line transect. The results showed that the average shell size of P. herolda at the exposed shore was 7.52 mm in length, 5.57 mm in width, and 2.23 mm in height, while, at the sheltered shore was 5.34 mm in length, 4.10 mm in width, and 1.81 mm in height. The shell size of limpets living on the exposed shore was significantly larger than those on the sheltered shore (t-student, P < 0.05). This study suggests that the difference in limpet shell sizes between the two locations was not influenced by population density, but was likely affected by differences in food supply and sedimentation levels in the areas. The impacts of environmental factors and food supply on the growth of limpets at the two locations are necessary to study in the future. Keywords: Exposed intertidal stony shore, morphometry, Patelloida heroldi, shell, sheltered intertidal stony shore Abstrak Tujuan penelitian ini adalah untuk menentukan perbedaan dimensi cangkang P. heroldi (panjang, lebar, dan tinggi) di antara dua lokasi berbeda, yaitu pantai berbatu intertidal terbuka dan pantai berbatu intertidal terlindung. Penelitian ini dilaksanakan di Pantai Magarizaki, Semenanjung Tomioka, Amakusa, Jepang selama 2 bulan, Maret-April 2024. Metode yang digunakan yaitu metode sampling kuadrat dengan menggunakan transek garis dan kuadrat yang berukuran 25 x 25 cm. Hasil penelitian menunjukkan bahwa rata-rata ukuran cangkang Patelloida heroldi di pantai berbatu terbuka, yaitu masing-masing panjang, lebar, dan tinggi cangkang sebesar 7,52 mm, 5,57 mm, dan 2,23 mm, sedangkan yang di pantai berbatu terlindung, yaitu masing-masing panjang, lebar, dan tinggi cangkang sebesar 5,34 mm, 4,10 mm, dan 1,81 mm. Ukuran cangkang limpet yang hidup di pantai berbatu terbuka lebih besar dibandingkan dengan yang hidup di pantai terlindung (t-student, P < 0,05). Penelitian ini memperlihatkan bahwa perbedaan ukuran cangkang limpet di kedua lokasi tidak dipengaruhi oleh faktor kepadatan, melainkan diduga dipengaruhi oleh perbedaan suplai makanan dan tingkat sedimentasi pada kedua area pantai intertidal berbatu yang terbuka dan terlindung. Pengaruh faktor-faktor lingkungan dan suplai makanan terhadap pertumbuhan limpet pada kedua lokasi perlu diteliti lebih lanjut. Kata kunci: Cangkang, morfometri, pantai berbatu intertidal terbuka, pantai berbatu intertidal terlindung, Patelloida heroldi
Developing of seaweed juice Halymenia durvilae Industry as a source antioxidant in Winuri VIlage, Likupang Subdistrict, North Minahasa Regency Sanger, Grace; Damongilala, Lena; Salindeho, Netty
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.58818

Abstract

The Community Service Program is located in Winuri Village, which is very geographically strategic for developing the industry of processing seaweed juice.   The village is a tourism region, so marketing food and beverage is easy. Generally, juices ready to be consumed in the market are juices from the fruit of the terrestrial plant,  whereas the juice of seaweed is very rare in the market.  This matter caused the community to be unaware of seaweed's benefits for human health, especially for preventing degenerative diseases, such as cancer.  Therefore is necessary to encourage the government or community to develop processed products of seaweed beverages, more will be developed to build an industry,  that has the main purpose of increasing public welfare. The targets of the Community Service Program are: To produce juice of seaweed that fulfills sanitation and hygienic standards; 2. To encourage the development of the seaweed juice industry.  The Implementation methods of the program that are agreed upon with the Partner are: 1. The problem of seaweed juice production, marketing, and finances; 2. The method to solving  the problems with counseling,  training, assistance, and evaluation; Keywords: Hygiene, industry, sanitation, dietary fiber Abstrak Program Pengabdian pada masyarakat (PKM) ini berlokasi di Wiuri yang  secara geografis sangat strategis untuk dikembangkan industri pengolahan minuman rumput laut. Desa  ini merupakan daerah wisata, sehingga pemasaran makanan dan minuman akan mudah. Saat ini kebanyakan minuman siap konsumsi  di pasaran  adalah minuman dari buah, tetapi minuman dari rumput laut jarang ditemui dilingkungan masyarakat. Hal ini disebabkan karena banyak masyarakat belum menyadari manfaat rumput laut untuk kesehatan. Oleh karena itu perlu usaha untuk mendorong pengembangan produk pengolahan pada masyarakat kemudian dapat ditingkatkan menjadi skala industri untuk meningkatkan kesejahteraan masyrarakat. Tujuan PKM ini yaitu 1. Memproduksi minuman rumput laut memenuhi syarat sanitasi dan higienis; 2. Mendorong pengembangkan usaha industri minuman sirup rumput laut. Adapun metode pelaksanaan yang disepakati dengan mitra yaitu: 1. Masalah produksi minuman sirup rumput laut, pemasaran produk dan keuangan; 2. Metode untuk menyelesaikan masalah dengan penyuluhan, pelatihan, pendampingan dan evaluasi; Kata kunci: Higienis, industri, sanitasi, serat.  

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