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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Jurnal Kesehatan Lingkungan indonesia Jurnal Ilmu Lingkungan Torani Journal of Fisheries and Marine Science Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Journal of Innovation and Applied Technology Research Journal of Life Science Journal of Environmental Engineering and Sustainable Technology Jurnal Kelautan Tropis JFMR (Journal of Fisheries and Marine Research) Omni-Akuatika JRST (Jurnal Riset Sains dan Teknologi) Indonesian Journal of Chemistry OLDI (Oseanologi dan Limnologi di Indonesia) Jurnal Perikanan Universitas Gadjah Mada Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Indonesian Journal of Natural Pigments PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Musamus Fisheries and Marine Journal Jurnal Laot Ilmu Kelautan International Journal of Marine Engineering Innovation and Research Journal of Marine and Coastal Science Jurnal Pengabdian Masyarakat (ABDIRA) Jurnal Puruhita Environmental Pollution Journal Abdi Geomedisains Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Journal of Fisheries & Marine Jurnal Pengabdian Perikanan dan Kelautan: Piskarias Ministerium Water and Marine Pollution Journal: PoluSea
Defri Yona
Universitas Brawijaya
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Analisis Senyawa Organik Volatil di Perairan Sedati, Sidoarjo, Jawa Timur Yamindago, Ade; Yona, Defri; Farhaninur, Amalia Izzy
Buletin Oseanografi Marina Vol 13, No 2 (2024): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v13i2.53109

Abstract

Senyawa organik volatil atau volatile organic compounds (VOC) adalah kelompok senyawa yang sering ditemukan di lingkungan perairan yang memiliki dampak negatif pada ekosistem dan kesehatan manusia. Keberadaan VOC di perairan dapat disebabkan oleh produksi dan penggunaan senyawa ini secara berkepanjangan. Sungai Sedati terletak di daerah perkotaan telah menerima masukan senyawa ini dari kegiatan rumah tangga, bahan baku industri, pertanian dan budidaya perikanan. Pendeteksian VOC di badan dan muara Sungai Sedati dilakukan menggunakan Solid Phase Microextraction (SPME) dan Gas Cromatography-Mass Spectrometry (GCMS). Selain itu, penelitian ini juga mengevaluasi kualitas perairan berupa pH, DO, salinitas, suhu, dan arus. Total 39 senyawa diperoleh dari Perairan Sedati, dimana senyawa-senyawa tersebut digunakan sebagai bahan kimia industri, bahan kimia farmasi, produk pembersih, produk perawatan pribadi, plasticizer, dan pestisida. Penggunaan tertinggi sebanyak 17 senyawa digunakan sebagai bahan kimia industri dan tujuh senyawa sebagai pestisida. Cemaran VOC didominasi oleh fenol (2,4-di-tert-butilfenol; 3,5-di-tert-butilfenol). Analisis kualitas air menunjukkan bahwa kualitas Perairan Sedati masih dalam ambang batas baku mutu air sungai kelas III dan baku mutu air laut. Penelitian ini memberikan informasi mengenai potensi dampak VOC, dan pentingnya pengelolaan limbah perkotaan yang lebih berkualitas untuk ekosistem perairan dan kesehatan manusia.  Volatile organic compounds (VOCs) are a group of chemicals that are frequently detected in aquatic environments, and show negative impacts on ecosystem and human health. The existence of VOCs in the waters may be obtained from their massive production and application. The Sedati River is located in an urban area that has received impacts from household activities, industrial raw materials, agriculture, and aquaculture. The detection of VOCs in the body and the river mouth of Sedati River was determined by Solid Phase Microextraction (SPME) and Gas Chromatography-Mass Spectrometry (GCMS). Water quality of the Sedati River was evaluated, namely pH, DO, salinity, temperature, and water current. A total of 39 compounds were detected in the Sedati River. Most of them were used in industrial chemicals, pharmaceutical chemicals, cleaning products, personal care products, plasticizers, and pesticides. 17 compounds were highly used as industrial chemicals, whereas seven compounds were lowly used as pesticides. The phenol (2,4-Di-tert-butylphenol; 3,5-Di-tert-butylphenol) was a dominant compound in the Sedati River. The water quality was in agreement with the water quality standards. This study provides information about the impacts of VOC in the water and the importance of water quality treatments for healthy ecosystems and humans.    
ANALISIS MIKROPLASTIK DI INSANG DAN SALURAN PENCERNAAN IKAN KARANG DI TIGA PULAU KECIL DAN TERLUAR PAPUA, INDONESIA: KAJIAN AWAL Maharani, Mela Dita; Cordova, M. Reza; Elvania, Yuyun; Dharmawan, I Wayan Eka; Yona, Defri
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 12 No. 2 (2020): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v12i2.25971

Abstract

Microplastics have been found widely in marine environments, including the remote areas far from human activities, and can be ingested by fish. This study aimed to investigate microplastics from 12 coral reef fishes of three small outer islands of Papua (Liki, Befondi, and Miossu) and to analyze the difference of microplastic concentrations in gill and gastrointestinal tract. Fish samples were obtained using a hand line and dissected to separate the gills and gastrointestinal tracts. The destruction method using H2O2 30 % was conducted to separate organic matter, and the microscope was used to identify microplastic types. Fibers were found in all fish species in the range of 1.60-28.30 particle/g dry weight. Microplastics in fishes from Liki Island were higher compared to the ones from Befondi and Miossu Islands. The results of this study observed that there is no relationship between fish size and microplastic concentration since the size of fishes from Liki Island were smaller than the ones from the two islands. Most fishes were observed to contain fiber in both the gill and gastrointestinal tract, with the dominant size of microplastic was > 1000 µm. This study found that microplastics in the gills were higher than in the gastrointestinal tracts, and it is related to the difference in the organ functionality and the process of microplastic entering the organs from the surrounding water.
Kesesuaian Habitat Bayi Hiu Karang Sirip Hitam di Taman Nasional Taka Bonerate Sudono, Chynta Veyra Aulia; Iranawati, Feni; Asri, Asri; Yona, Defri
Jurnal Kelautan Tropis Vol 28, No 3 (2025): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v28i3.29200

Abstract

Blacktip Reef Sharks (Carcharinus melanopterus) is one of many sharks that are found in Indo-pasific waters and currently listed as vulnerable in IUCN Redlist due to a decrease in population. Habitat suitability and environmental parameters are one of the factors that influence the presence of populations. This research focuses on habitat suitability of Blacktip Reef Sharks pups nursery grounds on the coast of Jinato and Tinabo Besar island, Taka Bonerate National Park with differences in environmental conditions and zone types. Therefore, this research was conducted to analyze the state of environmental parameters at both study site and analyze the influence of parameters and compare the habitat suitability of Blacktip Reef Shark babies at both study site. Data collection was conducted primarily and secondarily in both islands In July and August 2024 and processed using Spearman correlagtion and venn diagram. The number of Blacktip Reef Shark pups on Jinato Island was found to be 3 while on Tinabo Besar Island it was found to be 207, so it is assumed that there is an influence of environmental conditions on the presence of shark pups. There are significant differences and influences on chlorophyll-a, current speed, and salinity parameters, with current being the most influential parameter in the habitat suitability of blacktip reef shark pups on both islands. Tinabo Besar Island has slower current speed conditions, indicating a higher level of habitat suitability.  Hiu Karang Sirip Hitam (Carcharinus melanopterus) merupakan salah satu hiu pada area Indo-pasifik yang termasuk kedalam Redlist IUCN dengan kategori vulnerable karena adanya penurunan populasi. Kesesuaian habitat dan parameter lingkungan merupakan salah satu faktor yang memengaruhi keberadaan populasi hiu. Penelitian ini berfokus terhadap kesesuaian habitat bayi Hiu Karang Sirip Hitam di pesisir Pulau Jinato dan Tinabo Besar, Taman Nasional Taka Bonerate dengan perbedaan kondisi lingkungan dan tipe zona yang berbeda. Oleh karena itu, penelitian ini dilakukan untuk menganalisis perbedaan parameter pada kedua pulau, menganalisis pengaruh parameter serta membandingkan kesesuaian habitat bayi Hiu Karang Sirip Hitam pada lokasi kajian. Pengambilan data dilakukan baik secara primer dan sekunder pada kedua pulau di bulan Juli dan Agustus 2024 dan diolah menggunakan uji korelasi Speaman dan diagram venn. Jumlah bayi Hiu Karang Sirip Hitam pada pulau Jinato ditemukan 3 ekor sedangkan pada Pulau Tinabo Besar ditemukan 207 ekor sehingga diasumsikan adanya pengaruh kondisi lingkungan terhadap keberadaan bayi hiu. Terdapat perbedaan dan pengaruh signifikan pada parameter klorofil-a, arus, dan salinitas dengan paremter arus sebagai paremter yang paling berpegaruh dalam kesesuaian habitat bayi Hiu Karang Sirip Hitam di kedua pulau. Pulau Tinabo Besar memiliki kondisi arus yang lebih rendah sehingga menujukkan tingkat kesesuaian habitat yang lebih tinggi. 
Analysis of Microplastic Contamination in Vaname Shrimp (Litopenaeus Vannamei) with Different Cultivation Methods Puji Hastuti; Asih Fitriana Dewi; Defri Yona; Muhammad Mahmudi
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 2 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.6459

Abstract

Vaname shrimp cultivation is inseparable from the use of plastic. Plastic will fragment into microplastics and pollute the environment. Water sources and cultivation methods are often the source of microplastics entering the cultivation environment. This study aims to determine microplastic pollution in three different cultivation methods, seen from the presence of microplastics in water, sediment, commercial feed, and whiteleg shrimp. Sampling was carried out for three months of December 2024 - February 2025 by testing microplastics in water, sediment, feed, gill organs, and the digestive tract of whiteleg shrimp during one cultivation cycle. The microplastics found amounted to 1,593 particles, 877 particles in water, 561 particles in sediment, 53 particles in feed, and 102 particles in shrimp samples. The microplastics found were in the form of films, fragments, fibers, and pellets with sizes between 10-600 micrometer. The average abundance of microplastics in water and sediment fluctuates depending on geographical and weather conditions. Microplastics in feed indicate the presence of microplastic sources from the monthly feeding process. Meanwhile, the abundance of microplastics in shrimp accumulates every month. The differences in microplastic abundance in the three methods indicate the presence of microplastic pollution originating from cultivation equipment, commercial feed, and water sources that have been contaminated with microplastics.
Plastic debris characteristics and the effect of wind on Bawean Island Beaches, East Java, Indonesia Nurhafizh Sri Albarra; Defri Yona; Muhammad Arif Asadi; Syarifah Hikmah Julinda Sari; Riski Agung Lestariadi; Akhmad Amirudin
Depik Vol 13, No 3 (2024): DECEMBER 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.3.36620

Abstract

Characteristics of plastic debris were assessed among two types of beaches on Bawean Island (windward and leeward) to analyze its sources and long-term effects. Plastic debris was collected inside a 5 x 5 meter transect with five transect plots on each beach per 20 meters. Samplings were carried out three times at intervals of seven days from six different beaches. The average abundances of plastic debris were almost similar between leeward (0.1690.123 pcs m-2) and windward beaches (0.8410.577 pcs m-2). On the other hand, in terms of weight, leeward beaches contained a very low value of debris (0.9270.746 g m-2) compared to windward beaches (4.4793.551 g m-2). Sheets on the windward beaches and wholes on the leeward beaches dominate the shape of plastic debris with the average size was 1520 cm. The color on both type of beaches was dominated by white (38%) and blue (12%). The weathering intensity is 48% on the leeward beach and 52% on the windward beach. The absence of significant differences in size, color, and weathering intensity implies that the debris found came from the same source. The large size and low weathering intensity of the plastic debris means that the debris has not been exposed to hydro-oceanographic factors for an extended period and they came from a local source. The difference in abundance and shape of plastic debris suggests that wind still plays a vital role in shaping the characteristics of plastic debris on Bawean Island.Keywords:Marine DebrisPlastic WeatheringWind DirectionMarine PollutionMacroplastic
OPTIMALISASI POTENSI WISATA BAHARI DAN KONSERVASI ALAM UNTUK PENGEMBANGAN EKOWISATA DI DESA SIDOASRI, MALANG SELATAN: ENHANCING MARINE TOURISM AND NATURE CONSERVATION FOR SUSTAINABLE ECOTOURISM DEVELOPMENT IN SIDOASRI VILLAGE, MALANG Hidayati, Nurin; Rudianto; Sartimbul, Aida; Semedi, Bambang; Iranawati, Feni; Yona, Defri; Sari, Syarifah Hikmah Julinda; Setyawan, Fahreza Okta; Setyoningrum, Desy; Hidayat, Esa Fajar
Jurnal Pengabdian Perikanan dan Kelautan: Piskarias Ministerium Vol. 4 No. 1 (2026): Jurnal Pengabdian Perikanan dan Kelautan: Piskarias Ministerium pada Bulan Juni
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.piskarias.2026.004.01.2

Abstract

Desa Sidoasri merupakan desa pesisir di Kabupaten Malang dengan potensi wisata bahari yang besar, didukung oleh keberadaan Pantai Perawan, Teluk Klatakan, ekosistem terumbu karang, hutan mangrove, serta keanekaragaman biota laut. Namun, potensi tersebut belum dimanfaatkan secara optimal akibat terbatasnya promosi, rendahnya keterlibatan masyarakat, serta belum tersedianya media edukasi dan perencanaan pengembangan berbasis konservasi. Kegiatan Pengabdian kepada Masyarakat Dosen FPIK Universitas Brawijaya Tahun 2025 bertujuan mengoptimalkan potensi wisata bahari dan konservasi alam sebagai dasar pengembangan ekowisata berkelanjutan di Desa Sidoasri. Metode pelaksanaan meliputi identifikasi dan pemetaan potensi melalui observasi lapangan, dokumentasi, dan kajian aspek alam, budaya, serta daya tarik lokal. Kegiatan dilanjutkan dengan pelatihan ekowisata bahari, Focus Group Discussion (FGD), hibah buku karya dosen kepada Pemerintah Desa Sidoasri serta penyusunan buku Eksplorasi Wisata Bahari dan Konservasi Alam di Desa Sidoasri sebagai media edukasi dan promosi. Hasil kegiatan menunjukkan bahwa Desa Sidoasri memiliki potensi ekowisata yang beragam dan layak dikembangkan melalui pendekatan konservasi. Pelaksanaan pelatihan dan FGD meningkatkan pemahaman masyarakat mengenai pengelolaan wisata berbasis konservasi sekaligus menghasilkan rekomendasi pengembangan desa wisata yang lebih partisipatif. Selain itu, tersusunnya buku eksplorasi wisata dan hibah buku dosen menjadi luaran yang mendukung penyebarluasan informasi, edukasi lingkungan, dan promosi destinasi wisata. Secara keseluruhan, program pengabdian ini menghasilkan identifikasi potensi wisata, peningkatan kapasitas masyarakat, media edukasi, serta rekomendasi pengembangan sebagai landasan mewujudkan Desa Sidoasri sebagai desa ekowisata bahari berbasis konservasi alam yang berkelanjutan.   Sidoasri Village is a coastal village in Malang Regency with great marine tourism potential, supported by the presence of Perawan Beach, Klatakan Bay, coral reef ecosystems, mangrove forests, and diverse marine biota. However, this potential has not been optimally utilized due to limited promotion, low community involvement, and the unavailability of educational media and conservation-based development planning. The 2025 Community Service Program conducted by the Faculty of Fisheries and Marine Sciences, Universitas Brawijaya, aimed to optimize the potential of marine tourism and nature conservation as a basis for developing sustainable ecotourism in Sidoasri Village. The program was implemented through the identification and mapping of tourism potential using field observations, documentation, and assessments of natural, cultural, and local tourism attractions. The activities also included marine ecotourism training, Focus Group Discussions (FGDs), a grant of faculty-authored books to the Sidoasri Village Government, and the compilation of the book Exploration of Marine Tourism and Nature Conservation in Sidoasri Village as an educational and promotional resource. The results indicated that Sidoasri Village has diverse ecotourism potential that is feasible for development through a conservation approach. The training sessions and FGDs enhanced community understanding of conservation-based tourism management and generated recommendations for more participatory tourism village development. Furthermore, the publication of the tourism exploration book and the grant of faculty-authored books contributed to information dissemination, environmental education, and tourism promotion. Overall, the community service program successfully identified tourism potential, strengthened community capacity, developed educational resources, and produced strategic recommendations as the foundation for establishing Sidoasri Village as a sustainable conservation-based marine ecotourism destination.
Analisis Mikroplastik Pada Saluran Pencernaan Ikan Kembung (Rastrelliger Sp.) di Pelabuhan Perikanan Samudera Belawan, Sumatera Utara : Analysis of Microplastic in Mackerel (Rastrelliger sp.) Digestive Tract at Belawan Ocean Fishing Port, North Sumatra Arisanti, Gitri; Yona, Defri; Kasitowati, Rarasrum Dyah
Water and Marine Pollution Journal: PoluSea Vol. 1 No. 1 (2023): Water and Marine Pollution Journal: PoluSea May 2023
Publisher : Faculty of Fisheries and Marine Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.polusea.2023.001.01.4

Abstract

Mikroplastik di perairan berpotensi masuk ke tubuh biota laut seperti ikan melalui sistem rantai makanan. Penelitian ini bertujuan untuk mengidentifikasi karakteristik mikroplastik dan menganalisis hubungan antara ukuran ikan dengan kelimpahan mikroplastik pada saluran pencernaan (usus dan lambung) ikan kembung (Rastrelliger sp.) yang didaratkan di PPS Belawan. Pengumpulan sampel ikan dilakukan pada Bulan April 2022 dengan membeli 30 ekor ikan hasil tangkapan nelayan. Analisis laboratorium diawali dengan mengukur panjang (cm) dan berat (gr) ikan, melakukan pembedahan saluran pencernaan, destruksi bahan organik dan identifikasi mikroplastik menggunakan mikroskop. Destruksi bahan organik dilakukan dengan menambahkan larutan H2O2 30% pada saluran pencernaan yang sebelumnya telah ditimbang berat keringnya dengan perbandingan 1:20, kemudian diinkubasi selama 24 jam. Tiga jenis mikroplastik ditemukan di seluruh sampel saluran pencernaan dengan dominansi jenis film (54 %), diikuti oleh fragmen (33 %) dan fiber (13 %). Diantara jenis mikroplastik, film merupakan jenis mikroplastik yang memiliki kelimpahan tertinggi yaitu 2,30±1,30 partikel/gr. Penelitian ini menemukan bahwa ukuran ikan memiliki hubungan yang rendah dengan kelimpahan mikroplastik pada saluran pencernaan ikan. Hal ini dapat dikaitkan dengan kebiasaan makan ikan, makanan ikan, ukuran mulut dan tingkat pencemaran perairan yang berbeda.   Microplastic in the waters has the potential to enter the bodies of marine biota such as fish through the food chain system, either directly or indirectly. This study aims to identify the characteristics of microplastics and to analyse the relationship between fish size and the abundance of microplastics in the digestive tract of mackerel (Rastrelliger sp.) landed at Belawan Ocean Fishery Port. The collection of fish samples was carried out in April 2022 by purchasing 30 fish caught by fishermen. Laboratory analysis begins with measuring the length (cm) and weight (g) of the fish, performing digestive tract dissection, destroying organic matter and identifying microplastics using a microscope. Destruction of organic matter was carried out by adding a 30% H2O2 solution to the digestive tract which had previously been weighed dry weight with a ratio of 1:20, then incubated for 24 hours. Three types of microplastics were found in all samples of the digestive tract with the dominance of films (54%), followed by fragments (33%) and fiber (13%). Among the types of microplastics, film is the type of microplastic which has the highest abundance (2.30 ± 1.30 particles/gr). This study found that fish size has a low relationship with the abundance of microplastics in the digestive tract of fish. This can be attributed to the eating habits of fish, fish food, mouth size and different levels of water pollution.
Analisis Komposisi Mikroplastik Pada Tiga Ikan Laut Ekonomis Penting dari Pelabuhan Perikanan di Jawa Timur, Indonesia: Microplastic Composition Analysis in Three Economically Important Marine Fish from Fishing Ports in East Java, Indonesia Idris, Arief; Rahmawati, Andira; Sari, Syarifah Hikmah Julinda; Fuad, Mochamad Arif Zainul; Harlyan, Ledhyane Ika; Yona, Defri
Water and Marine Pollution Journal: PoluSea Vol. 2 No. 2 (2024): Water and Marine Pollution Journal: PoluSea October 2024
Publisher : Faculty of Fisheries and Marine Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.polusea.2024.002.02.1

Abstract

Mikroplastik memiliki potensi tinggi untuk tersebar merata di perairan dan terakumulasi pada organisme perairan termasuk ikan. Saluran pencernaan dan organ insang merupakan bagian ikan yang seringkali terkontaminasi oleh mikroplastik. Penelitian ini bertujuan untuk menganalisis komposisi mikroplastik pada ikan Clupea harengus, Euthynnus affinis, dan Restrelliger brachysoma dengan lokasi yang berbeda diantaranya Pondok Dadap Sendang Biru, Pacitan, dan Mayangan Probolinggo. Analisis dilakukan dengan identifikasi organ dan saluran pencernaan pada ketiga spesies ikan. Komposisi mikroplastik pada sampel organ ikan dianalisis dengan menghancurkan bahan organik melalui perendaman sampel pada laruta H2O2 30% dan larutan Fe (II) 0,05 M selama 24 Jam. Analisis dilanjutkan dengan penyaringan sampel menggunakan kertas Whatman dan identifikasi menggunakan mikroskop (Olympus CX33). Diantara jenis mikroplastik, fiber dan fragmen merupakan jenis mikroplastik yang paling banyak ditemukan pada ikan Clupea harengus, Euthynnus affinis, dan Restrelliger brachysoma dibandingkan dengan jenis film.  Kelimpahan total mikroplastik ditemukan lebih tinggi pada organ dibandingkan pada saluran pencernaan.  Terdapat perbedaan jumlah kelimpahan mikroplastik pada ketiga spesies. Spesies Clupea harengus memiliki kelimpahan mikroplastik tertinggi dibandingkan dengan spesies lainnya. Hal ini dipengaruhi oleh kondisi ikan yang tidak dapat membedakan antara mikroplastik dan plankton sebagai mangsanya. Kebiasaan makan ikan dengan menyaring air di sekitarnya membuat ikan rentan mendapatkan plankton yang terkontaminasi mikroplastik.   Microplastics have a high potential to be evenly distributed in waters and accumulate in aquatic organisms including fish. The digestive tract and gill organs are parts of fish that are often contaminated by microplastics. This study aims to analyze the composition of microplastics in fish Clupea harengus, Euthynnus affinis, and Restrelliger brachysoma with different locations including Pondok Dadap Sendang Biru, Pacitan, and Mayangan Probolinggo. The analysis was conducted by organ identification in the three fish species. The composition of microplastics in fish organ samples was analyzed by destroying organic matter through immersion of samples in 30% H2O2 solution and 0.05 M Fe (II) solution for 24 hours. The analysis was continued by filtering the samples with Whatman paper and identifying them with a microscope (Olympus CX33). Among the types of microplastics, fibers and fragments were the most common types of microplastics found in Clupea harengus, Euthynnus affinis, and Restrelliger brachysoma compared to film types.  The total abundance of microplastics was found to be higher in organs than in the digestive tract.  There were differences in the abundance of microplastics among the three species. Clupea harengus species had the highest abundance of microplastics compared to other species. This is influenced by the condition of the fish, which cannot choose between microplastics and plankton as prey. Fish feeding habits by filtering the surrounding water make fish vulnerable to plankton contaminated with microplastics.
Kelimpahan Mikroplastik pada Ikan Lemuru (Sardinella lemuru) dan Ikan Kembung (Rastrelliger kanagurta) Yang Didaratkan di PPP Mayangan, Probolinggo: Microplastic Abundance on Bali Sardinella (Sardinella lemuru) and Indian Mackarel (Rastrelliger kanagurta) Landed at PPP Mayangan, Probolinggo Avisina, Achmadika; Yona, Defri; Winata, Victor Adi; Nor, Hazimah Binte Mohamed; Sartimbul, Aida
Water and Marine Pollution Journal: PoluSea Vol. 2 No. 2 (2024): Water and Marine Pollution Journal: PoluSea October 2024
Publisher : Faculty of Fisheries and Marine Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.polusea.2024.002.02.4

Abstract

Ikan kembung (Rastrelliger kanagurta) dan ikan lemuru (Sardinella lemuru) merupakan dua spesies ikan yang umum ditangkap di PPP Mayangan Probolinggo dan memiliki peluang yang tinggi untuk terkontaminasi oleh mikroplastik. Sampel ikan diambil secara acak dan diukur morfometrik (panjang dan berat tubuh) sebagai informasi biologis pendukung dan validasi untuk penggunaan uji perbedaan morfometrik dari kedua jenis ikan terhadap data kelimpahan mikroplastiknya. Analisis kelimpahan mikroplastik pada kedua jenis ikan dilakukan dengan mengidentifikasi dan membandingkan kelimpahan partikel antara kedua jenis ikan berdasarkan jaringan/organ ikan, tipe partikel, ukuran partikel, serta warna partikel. Bahan organik dihancurkan menggunakan metode destruksi H2O2 30% dengan perbandingan 1:20. Analisis FTIR digunakan untuk mengetahui jenis polimer dari mikroplastik. Hasil menunjukkan terdapat kelimpahan sebanyak 52,20 ± 22,81 partikel/individu pada ikan kembung dan 61,20 ± 10,48 partikel/individu pada ikan lemuru. Analisis statistik menunjukkan tidak adanya perbedaan kelimpahan partikel yang signifikan berdasarkan asal organ/jaringan maupun tipe, ukuran, dan warna partikel. Dapat disimpulkan bahwa partikel mikroplastik yang dikonsumsi oleh kedua jenis ikan cenderung memiliki karakteristik yang sama: bertipe fragmen atau fiber, berwarna hitam atau biru, dan berukuran berkisar 50-100 µm. Hasil FTIR menunjukkan partikel dengan tipe cotton fibre. Kontrol kualitas data mikroplastik dari sampel (tingkat kontaminasi udara 1,59 %) didapatkan dari blanko (kontrol negatif) dengan mempertimbangkan kelimpahan dan karakteristik mikroplastiknya.   Mackerel (Rastrelliger kanagurta) and the Bali Sardinella (Sardinella lemuru) are two common fish species caught in the Mayangan Probolinggo Fishing Port (PPP) and are highly susceptible to microplastic contamination. Fish samples were picked randomly and their morphometric (body length and weight) were measured as supporting biological information and validation for the usage of difference testing of both species’ morphometrics to their microplastics abundance. Analysis of microplastic abundance in both fish species was conducted by identifying and comparing particle abundance between the two species based on fish tissues/organs, particle type, particle size, and particle colour. Organic material was destroyed using a 30% H2O2 destruction method with a ratio of 1:20. FTIR was performed to determine the polymer of microplastics. The results showed an abundance of 52.20 ± 22.81 particles/individual in mackerel and 61.20 ± 10.48 particles/individual in Bali Sardinella. Statistical analysis indicated no significant differences in particle abundance based on organ/tissue origin or particle type, size, and colour. It can be concluded that the microplastic particles consumed by both fish species tend to have similar characteristics: fragmented or fibrous type, black or blue colour, and a size of 50-100 µm. FTIR results indicated cotton fibre type particle. Quality control of the microplastic data from samples (air contamination level of 1,59%) was obtained from blank samples (negative control) with their abundance and characteristics taken into consideration.
Nutrient Dynamics and Phytoplankton Communities in Coastal Ecosystems of Lamongan, Indonesia A'yun, Qurrota; Nabilah, Mariah; Asadi, Muhammad Arif; Yona, Defri; Aliviyanti, Dian
Water and Marine Pollution Journal: PoluSea Vol. 3 No. 1 (2025): Water and Marine Pollution Journal: PoluSea April 2025
Publisher : Faculty of Fisheries and Marine Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.polusea.2025.003.01.4

Abstract

Coastal waters are critical transition zones sensitive to both natural processes and anthropogenic pressures. Lamongan’s coastal waters, especially around Paciran and Brondong, have undergone increasing nutrient stress due to expanding fisheries and tourism. This study aimed to assess how key water quality parameters (temperature, salinity, dissolved oxygen, nitrate, and phosphate) shape phytoplankton abundance and community structure in Paciran and Brondong, Lamongan Regency, Indonesia. Data were collected from four stations over three sampling campaigns between May and July 2023, with each campaign separated by approximately two weeks. A total of 12 water samples were analyzed for nutrient concentrations and phytoplankton composition, employing standardized water sampling and microscopic identification of phytoplankton genera. Physicochemical parameters were measured in situ, while nutrient analyses were conducted in the laboratory using spectrophotometry. Ecological indices and statistical modeling were then applied to elucidate driving factors. Results show that elevated nitrate and warm temperatures corresponded with higher phytoplankton abundance, predominantly Diatoms. Chaetoceros emerged as the dominant genus, indicating eutrophic tendencies and aligning with observations in similarly impacted coastal areas. Despite moderate overall diversity, the clear correlation between nutrient enrichment and Chaetoceros proliferation underscores the risk of future harmful algal blooms under unchecked anthropogenic inputs. These findings confirm that the interplay of nutrient loading, temperature regimes, and localized hydrodynamics critically influences primary productivity in tropical coastal waters. In summary, this study highlights the vulnerability of Paciran and Brondong waters to eutrophication driven primarily by excessive nitrogen. The implications extend to resource management and conservation, suggesting that multi-nutrient control and proactive monitoring of diatom dominance are essential to sustaining ecological balance. By providing empirical evidence on critical drivers of phytoplankton dynamics, the research supports informed decision-making to mitigate negative impacts on marine ecosystems and local livelihoods.
Co-Authors A'yun, Qurrota Abdullah Hamid Ade Yamindago Adi, M Arif As' Adrian Sakti Gangsar Pinilih Agung Yunanto Agung Yunanto Agung Yunanto Agung Yunanto Aida Sartimbul Aini, Misba Nur Akhmad Amirudin Aliviyanti, Dian Anatasya Alya Ariyanti Andik Isdianto Andira, Andira Anggara, Arik Ardelia Annisa Larasati Ardelia Annisa Larasati, Ardelia Annisa Arifianti, Dwi Nurjanatin Arisanti, Gitri Asih Fitriana Dewi Asri asri Atsuhiko Isobe Atsuhiko Isobe Avisina, Achmadika Ayuingtyas, Wulan Cahya Bambang Semedi Basutikto, Gibran Aji Bernads Daniel Marolop Siagian Billy Arif Mahendra Carina Daisy Samantha Chiara Dewi Nathania El Zam Citra Satrya Utama Dewi Cordova, M. Reza Danu Setia Wardana Dara Sarasita Dara Sarasita David Vernandes Dewi, Citra Satrya Utama Dharmawan, I Wayan Eka Dhira Kurniawan Diana Ningrum, Diana Dwi Candra Pratiwi Dwi Candra Pratiwi Dwi Setijawati Dyah Ajeng Pitaloka Effendy, Citra Ravena Putri Eko Sulkhani Yulianto Elvania, Yuyun Emmanuel Manangkalangi Erfan Rohadi Evitantri, Mangesti Reza Fadhilah Aisyah di Prikah Fahreza Okta Setyawan Farhaninur, Amalia Izzy Feni Iranawati Feni Iranawati, Feni Fikri, Maulana Firdaus, Naufal Firdausi, Muhammad Azka Dzikri Fuad, M. Arif Zainul Fuad, M.Arif Zainul Fuad, Mochamad Arif Zainul Fuad, Muhammad Arif Zainul Gde Raka Angga Kartika Guntur Hendiari, I Gusti Ayu Diah Hidayat, Esa Fajar Hidayati, Nurin Hikmah Farda Awaliyah Hutauruk, Immanuel Valentino I Wayan Arthana Idris, Arief Iis Nur Rodliyah, M.Ed Indriani, . Irfan Naufal Amar Julianinda, Yanida Azhari Junika Chintia Ayu Putri Kartikaningsih, Hartati Kharisma Wisnu Sesanty Khuluq, Muhammaf Lathiful Kretarta, Anedathama Ledhyane Ika Harlyan Luky Sembel Maghfira Shafazamilla Mauludy Maharani, Mela Dita Maheswari, Maretha Dewi Mangesti Reza Evitantri Maulidiyah, Rizqi Aimmatul Mela Dita Maharani Mochamad Arif Zainul Fuad Mochamad Arif Zainul Fuas Mohammad Arif Asadi Muh. Arif Rahman Muhammad Arif Asadi Muhammad Arif Asadi, Muhammad Arif Muhammad Arif As’adi Muhammad Ariq Kautsar Muhammad Fathur Rayyan Muhammad Mahmudi Mulyanto, Febri Dwi Nabila, Risda Ayu Nabilah, Mariah Nevandra, Adinda Prameswari Aisyah Nor, Hazimah Binte Mohamed Nurhafizh Sri Albarra Nurin Hidayati Nurin Hidayati Nurin Hidayati Nurin Hidayati Nurin Hidayati Nurul Muslihah Oktiyas Muzaky Lutfi Park, Mi Ok Philipus Musyeri Priyanka Mondal Puji Hastuti Putri, Anggi Andrianah Putri, Yandini Eka R Rachmawati Rachmawati Rachmawati Rafika Devi Agustin Rahman, M. Arif Rahmawati, Andira Rakhmawan, Hilal ramadhan, firman Rarasrum Dyah Kasitowati Rarasrum Dyah Kasitowati Rarasrum Dyah Kasitowati, Rarasrum Dyah Rayyan, Muhammad Fathur Riski Agung Lestariadi Risqi, Mohammad Aditya Rudianto Rudianto Rudianto Rumantya, Matthew Adi Bekti Safitri Widya Ningtias Samuel, Pratama Diffi Saputra, Dhira Kurniawan Sarasita, Dara Seftiawan Samsu Rijal, Seftiawan Samsu Setyawan, Fahreza Okta Setyoningrum, Desy Siburian, Andreas Steve Jonathan Sisylia Eka Narriyah Putri Siti Nur Khabibah Sudono, Chynta Veyra Aulia Sunardi Sunardi Susanto, Raden Dwi Syahrir, Ahdiya Syamsuddin, Maura Fayza Dwinanda Syananta, Citra Syarifah Hikmah Julinda Sari Tobing, Michael Tosi Lumban Tsania Humairoh Vidayanti, Viky Wahyudi, Aan J. Wahyudi, Angger Dwiky Widodo S Pranowo Winata, Victor Adi Wirdana, Nurmalisa Wulan Cahya Ayuingtyas Yanida Azhari Julianinda Yanuar, Adi Tiya Yenny Risjani Yunanto, Agung Yuniar Ponco Prananto Yusril Zaqi Ubaydillah Yusrina Rizqi Amalia Zefanya Nandaningtyas