JFMR (Journal of Fisheries and Marine Research) https://jfmr.ub.ac.id/index.php/jfmr <p><strong>JFMR (Journal of Fisheries and Marine Research)</strong> is dedicated to published highest quality of research papers on all aspects of : <strong>Aquatic Resources</strong>, <strong>Aquaculture</strong>, <strong>Fisheries Resources </strong><strong>Technology and Management</strong>, <strong>Fish Technology and Processing</strong>, <strong>Fisheries and Marine Social Economic</strong> and <strong>Marine Science</strong>. This journal is jointly published by <strong>Faculty of Fisheries and Marine Science</strong><strong>,</strong> Brawijaya University, Malang, Indonesia.</p> en-US <p>Submission of a manuscript implies: that the work described has not been published before (except in the form of an abstract or as part of a published lecture, or thesis) that it is not under consideration for publication elsewhere; that if and when the manuscript is accepted for publication, the authors agree to automatic transfer of the copyright to the publisher.</p><p><img src="https://i.creativecommons.org/l/by-nc/4.0/88x31.png" alt="Creative Commons License" /></p> jfmr@ub.ac.id (Syarifah Hikmah Julinda Sari) gandaru@ub.ac.id (Gandaru Putranda) Sat, 30 Mar 2024 04:15:18 +0000 OJS 3.3.0.13 http://blogs.law.harvard.edu/tech/rss 60 Analysis of Heavy Metal Content of Mercury (Hg) and Cadmium (Cd) in Frozen Tuna (Thunnus sp.) https://jfmr.ub.ac.id/index.php/jfmr/article/view/1012 <p>Tuna fish is one of the fishery resources that has high potential. The fish is very active and vulnerable to chemical contamination because marine waters include areas that have a lot of contact with humans such as accretion, fish processing industries, and metal smelting. This study aims to: (1) analyze the content mercury and cadmium in frozen tuna; (2) analyze the effect of fish sample weight on Hg and Cd content. Destructive principle method with Atomic Absorption Spectrophotometer (AAS) used for analyzing the Hg and Cd content. Heavy metal analysis used 5 samples of frozen tuna fish. The samples were taken from a Tuna fish freezing company from the Denpasar area, Bali. Linear regression analysis was used to determine the sample weight effect on heavy metal content in tuna fish. The heavy metal test results showed that all samples contained less than 1.0 ppm of Hg and less than 0.5 ppm of Cd. It shows that heavy metal which contains in all the samples still under the threshold by SNI 7387:2009. Data analysis showed that there was no significant effect of sample weight on Hg content (p&gt;0.05), while weight of sample had a significant effect on Cd metal (p&lt;0.05).</p> Iftachul Farida, Anis Khairunnisa, Gusti Ngurah Putu Paksi Kencana Copyright (c) 2024 http://creativecommons.org/licenses/by-nc/4.0 https://jfmr.ub.ac.id/index.php/jfmr/article/view/1012 Sat, 30 Mar 2024 00:00:00 +0000 Konsep Community-Based Tourism dalam Pengelolaan Ekowisata Bahari (Studi Kasus di Clungup Mangrove Conservation, Kabupaten Malang) https://jfmr.ub.ac.id/index.php/jfmr/article/view/1035 <p>Pengelolaan ekowisata yang baik adalah ketika ekowisata dapat memberikan manfaat bagi seluruh masyarakat. Salah satu konsep yang menjelaskan peranan masyarakat tersebut dalam pembangunan pariwisata adalah <em>Community-Based Tourism</em> (CBT). Tujuan penelitian yaitu mendeskripsikan konsep pengelolaan ekowisata bahari berbasis masyarakat. Lokasi penelitian di Desa Sitiarjo, Sumbermanjing Wetan, Kabupaten Malang, Provinsi Jawa Timur pada bulan April 2021. Teknik pengumpulan data dilakukan dengan cara observasi, wawancara dan diskusi dengan responden yang ada di daerah penelitian. Informan awal penelitian ini dipilih secara <em>purposive</em> (<em>purposive sampling</em>) selanjutnya penentuan informan yang lainnya dilakukan secara <em>snowball</em> berdasarkan petunjuk dari informan kunci terdiri 20 responden yang memahami bidang ekowisata. Pendekatan dalam penelitian ini adalah bersifat kualitatif dengan maksud untuk memahami fenomena tentang pengelolaan ekowisata bahari berbasis masyarakat. Metode analisis dalam penelitian ini menggunakan model interaktif. Hasil penelitian menunjukkan bahwa konsep pengelolaan ekowisata bahari melibatkan dan menempatkan masyarakat lokal sebagai pengendali penuh dalam pengelolaannya. Pemerintah sebagai regulator dan fasilitator berperan strategis dalam pengelolaan ekowisata, begitu juga pihak swasta, peneliti, dan media juga sangat diperlukan sebagai katalisator.<br /><br />Good ecotourism management is when ecotourism can provide benefits to the whole community. One concept that explains the role of the community in tourism development is Community-Based Tourism (CBT). The research objective is to describe the idea of community-based marine ecotourism management. The research location is in Sitiarjo Village, Sumbermanjing Wetan, Malang Regency, East Java Province, April 2021. Data collection techniques are carried out using observation, interviews and discussions with respondents in the research area. The initial informants of this study were selected by purposive sampling (purposive sampling) and then the determination of other informants was carried out by snowball based on instructions from key informants consisting of 20 respondents as experts in ecotourism. The approach in this study is qualitative with the aim of intending to understand the phenomenon of community-based marine ecotourism management. The analytical method in this study uses an interactive model. The results showed that the concept of marine ecotourism management involves and places the local community as the whole controller in its management. The government, as a regulator and facilitator, plays a strategic role in ecotourism management, as well as the private sector, researchers, and the media are also needed as catalyst.</p> Nuddin Harahab, Dhiana Puspitawati, Adi Kusumaningrum, Supriyadi Supriyadi, Mentari Puspa Wardani, Asyifa Anandya Copyright (c) 2024 http://creativecommons.org/licenses/by-nc/4.0 https://jfmr.ub.ac.id/index.php/jfmr/article/view/1035 Sat, 30 Mar 2024 00:00:00 +0000 Persepsi Nelayan Mengenai Penangkapan Ikan dengan Dampak Rendah dan Hemat Bahan Bakar di PPN Brondong Lamongan Jawa Timur https://jfmr.ub.ac.id/index.php/jfmr/article/view/994 <p>Pengelolaan perikanan merupakan komponen penting dari pengelolaan sumber daya perairan (stok spesies, dan lingkungannya). Sumber daya perikanan memiliki definisi yang komprehensif dan, secara umum, merujuk pada semua hewan yang sebagian besar menghuni habitat perairan dan ditangkap oleh manusia. Berkurangnya stok disebabkan tingginya produktifitas penangkapan, yang dipenggaruhi penggunaan armada alat tangkap. Armada alat tangkap harus dapat memperhitungkan setidaknya tiga dampak utama, yaitu: (1) dampak lingkungan, (2) dampak terhadap kelimpahan sumber daya dan (3) dampak pada target stok sumberdaya ikan. Penelitian ini dilakukan bulan Maret – Juni 2023 di Pelabuhan Brondrong. Metode yang digunakan pada penelitian ini adalah metode deskriptif dengan cara wawancara, observasi, dokumentasi Tujuan Penelitian ini mengetahu informasi nelayan sebagai pengguna langsung terhadap keberadaan sumberadaya ikan tentang Penangkapan ikan dengan dampak rendah dan hemat bahan bakar (LIFE (Low impact and Fuel Efficient) FISHING. Berdasarkan hasil penelitian Low Impact (Dampak Rendah), alat tangkap yang memiliki kontribusi paling besar terhadap lingkungan perairan yaitu cantrang dengan nilai 34%, alat tangkap payang sebesar 41%, pancing ulur 65%, dan rawai sebesar 64%. Jadi, alat tangkap yang memiliki kontribusi paling rendah adalah rawai dan pancing ulur, kemudian payang dan cantrang. Berdasarkan fuel efficient (efisiensi bahan bakar), alat tangkap yang memiliki tingkat efesiensi bahan bakar paling baik yaitu alat tangkap rawai dan pancing ulur dengan nilai 67%, kemudian payang dengan nilai 59%, dan cantrang dengan nilai 42%. Hal tersebut dikarenakan pengaruh ukuran kapal, jarak trip, dan lama trip kapal rawai dan pancing ulur dan rawai lebih sedikit dari alat tangkap payang dan cantrang . Hasil penelitian ini merekomidasi penggunaan alat tangkap rawai dan pancing dikarenakan ramah lingkungan dan efeisiensi bahan bahar.<br /><br />Fisheries management is essential to aquatic resource management (species stocks and their environment). Fisheries resources have a comprehensive definition and generally refer to all animals that predominantly inhabit aquatic habitats and are caught by humans. Stock depletion is caused by high fishing productivity, which is influenced by the use of fishing gear fleets. Fishing gear fleets must be able to take into account at least three main impacts, namely: (1) environmental impacts, (2) impacts on resource abundance, and (3) impacts on target stocks of fish resources. This research was conducted from March to June 2023 at Brondrong Harbor. The research methodology employed in this study is descriptive, utilizing interviews, observations, and documentation. The purpose of this study is to determine the information of fishermen as direct users of the existence of fish resources about Fishing with low impact and fuel-efficient LIFE (Low impact and Fuel Efficient) FISHING. Based on the Low Impact study results, the fishing gear with the most significant contribution to the aquatic environment is cantrang with a value of 34%, payang gear with 41%, handline with 65%, and longline with 64%. So, the fishing gear with the lowest contribution is longline and handline, then payang and cantrang. Based on fuel efficiency, the fishing gear with the best fuel efficiency is longline and hand line fishing gear with a value of 67%, then payang with a value of 59%, and cantrang with a value of 42%. This refers to the influence of vessel size, trip distance, and trip length of longline and handline and longline vessels which are less than payang and cantrang fishing gear. The study suggests using longline and fishing gear due to their environmental friendliness and material efficiency.</p> Tri Djoko Lelono, Fuad Fuad, Gatut Bintoro, Destiana Hermanita, Mihrobi Khalwatu Rihmi, Anung Widodo, Mahiswara Mahiswara Copyright (c) 2024 http://creativecommons.org/licenses/by-nc/4.0 https://jfmr.ub.ac.id/index.php/jfmr/article/view/994 Sat, 30 Mar 2024 00:00:00 +0000 Uji Ekstrak Air, Etanol dan Metanol Caulerpa lentillifera Terhadap Bakteri Vibrio sp. (Vibrio parahaemolyticus, Vibrio harveyi dan Vibrio alginolyticus) https://jfmr.ub.ac.id/index.php/jfmr/article/view/1011 <p>Masalah yang sering muncul dalam kultivasi vanamei adalah serangan penyakit. Salah satu penyakit semangka yang sering menyebabkan kegagalan tanaman untuk kematian massal adalah <em>Vibrio</em>sis. <em>Vibrio</em>sis adalah infeksi pada kerang yang disebabkan oleh bakteri <em>Vibrio</em> (<em>Vibrio alginolyticus, Vibrio harveyi, </em>dan <em>Vibrio parahaemolyticus</em>). Caulerpa ini diketahui memiliki aktivitas biologis, seperti anti-hipertensi, antioksidan, anti-kanker, dan aktivitas anti-mikroba. Tujuan dari penelitian ini adalah untuk mengetahui potensi antibakteri masing-masing ekstrak dari <em>Caulerpa lentillifera. </em>Metode penelitian adalah eksperimental, desain yang digunakan adalah RAL dengan Antibakteri Aktivitas Tes, yang mencakup Uji ekstrak air, etanol dan methanol terhadap bakteri <em>Vibrio alginolyticus</em>, <em>Vibrio harveyi, Vibrio parahaemolyticus</em>. Bakteri dalam penelitian ini adalah bakteri <em>Vibrio</em>sis. (<em>Vibrio alginolyticus, Vibrio harveyi, Vibrio parahaemolyticus</em>). Tes ini dilakukan untuk menentukan apakah pelarut telah mempengaruhi pembentukan diameter zona penghalang. Pada piring (media) untuk divaksinasi dengan bakteri uji. Sebuah kertas disk steril 8 mm ditempatkan di atas medium untuk kemudian disegel dengan ekstrak kasar 10 μl dengan konsentrasi ekstrak 25; 50; 100; 200 mg / disk. Petri cangkir dikemas dalam kemasan plastik dan disimpan di inkubator pada suhu 370 C selama 1-3 hari dan diulang 3 kali. Hasil penelitian menunjukkan bahwa diameter zona hambat rata-rata tertinggi ditemukan dalam perlakuan dengan ekstrak Air, Etanol dan Metanol dari Caulerpa pada dosis 100 mg/L sedangkan hasil zona hambat terendah ditemukan pada perlakuan ekstrak Air, Etanol dan Metanol Caulerpa 12,5 mg / L.<br /><br />The frequent issue encountered in the cultivation of vanamei is the occurrence of disease outbreaks. <em>Vibrio</em>sis is one of the diseases that often leads to mass death in watermelon plants. <em>Vibrio</em>sis is an infection in shellfish caused by the <em>Vibrio</em> bacteria. The three species are <em>Vibrio</em><em> alginolyticus, Vibrio harveyi,</em> and <em>Vibrio</em><em> parahaemolyticus</em>. Caulerpa is known to possess biological activities, such as antihypertensive, antioxidant, anticancer, and antimicrobial activities. The research method employed was experimental, utilising a Randomised Complete Block Design (RCBD) with Antibacterial Activity Test. This test encompassed the examination of water, ethanol, and methanol extracts against <em>Vibrio</em><em> alginolyticus, Vibrio harveyi, and Vibrio parahaemolyticus </em>bacteria. The bacteria used in this study are <em>Vibrio</em>sis bacteria. The three species are <em>Vibrio</em> alginolyticus, <em>Vibrio</em> harveyi, and <em>Vibrio</em> parahaemolyticus. This es tis conducted to determine whether the solvent has influenced the formation of the barrier zone diameter. On the plate (medium) for inoculation with test bacteria. A sterile 8 mm disc paper is placed on the medium and then sealed with a crude extract of 10 μl with extract concentrations of 25, 50, 100, and 200 mg/disk. The petri dishes are packaged in plastic packaging and stored in an incubator at a temperature of 370°C for 1-3 days, and this process is repeated 3 times. The research findings indicate that the highest average inhibitory zone diameter was found in the treatment with extracts of Water, Ethanol, and Methanol from Caulerpa at a dosage of 100 mg/L, while the lowest inhibitory zone diameter was found in the treatment with extracts of Water, Ethanol, and Methanol from Caulerpa at a dosage of 12.5 mg/L.</p> Asus Maizar Suryanto Hertika, Febriyani Eka Supriatin, Renanda Baghaz Dzulhamdhani Surya Putra Copyright (c) 2024 http://creativecommons.org/licenses/by-nc/4.0 https://jfmr.ub.ac.id/index.php/jfmr/article/view/1011 Sat, 30 Mar 2024 00:00:00 +0000 Analisis Finansial Ekowisata Mangrove Lantebung https://jfmr.ub.ac.id/index.php/jfmr/article/view/885 <p>Permasalahan Ekonomi khususnya masyarakat pesisir Indonesia saat ini sudah menjadi hal yang yang alamiah kita temukan. Terutama masyarakat pesisir yang terletak di wilayah terpencil atau termarginalkan. Dampak dari permasalahan tersebut adalah terjadinya perubahan atau penurunan kualitas lingkungan pesisir. Permasalahan ekonomi yang dialami masyarakat disebabkan karena rendahnya pendapatan masyarakat pesisir, juga disebabkan karena naik dan turunnya produksi, pengeluaran dan pendapatan masyarakat yang dipengaruhi oleh berbagai hal. Tujuan dari penelitian ini yaitu untuk menganalisis besaran biaya, penerimaan dan pendapatan masyarakat.Metode yang digunakan yaitu analisis deskriptif dari hasil pengamatan dilapangan. Hasil penelitian menunjukkan bahwa Rata-rata total pengeluaran masyarakat ekowisata mangrove Lantebung sebesar Rp. 1.365.733, rata-rata penerimaan sebesar Rp. 2.731.133 dan rata-rata pendapatan masyarakat sebesar Rp. 1.365.400. Dari hasil analisis, besar atau kecilnya pendapatan yang diperoleh oleh suatu rumah tangga dipengaruhi oleh penerimaan dan biaya yang dibutuhkan. Rumah tangga yang memiliki penerimaan yang tinggi cenderung memiliki pendapatan yang tinggi pula, namun tidak terlepas pula dari bagaimana rumah tangga itu mengelolah pengeluarannya.<br /><br />Economic problems, especially for coastal communities in Indonesia, have become a natural thing for us to find. Especially coastal communities located in remote or marginalized areas. The impact of these problems is a change or decrease in the quality of the coastal environment. The economic problems experienced by the community are caused by the low income of coastal communities, also caused by the rise and fall in production, expenditure and income of the community which are influenced by various things. The purpose of this study is to analyze the amount of costs, acceptance and income of the community. The method used is descriptive analysis of the results of field observations. The results showed that the average total expenditure of the Lantebung mangrove ecotourism community was Rp. 1,365,733, the average revenue is Rp. 2,731,133 and the average income of the community is Rp. 1,365,400. From the results of the analysis, the size of the income earned by a household is influenced by the income and expenses required. Households that have high income tend to have high income too, but this cannot be separated from how the household manages its expenses.</p> Adrayanti Sabar, Kasri Kasri Copyright (c) 2024 http://creativecommons.org/licenses/by-nc/4.0 https://jfmr.ub.ac.id/index.php/jfmr/article/view/885 Sat, 30 Mar 2024 00:00:00 +0000 Pengaruh Pemberian Pupuk Organik Cair Eceng Gondok (Eichhornia Crassipes) dengan Dosis Berbeda Terhadap Kandungan Pigmen Nannochloropsis Oculata https://jfmr.ub.ac.id/index.php/jfmr/article/view/973 <p>Eceng gondok seringkali dianggap sebagai gulma dan dapat merugikan organisme perairan. Namun pengolahan eceng gondok yang tepat dapat memberikan efek positif, salah satu olahan tersebut berupa pupuk organik cair yang dapat berpengaruh pada fitoplankton. Fitoplankton berperan penting terhadap ketersediaan oksigen di perairan dan sebagai pakan alami bagi zooplankton maupun ikan-ikan kecil. Salah satu jenis fitoplankton adalah <em>Nannochloropsis oculata</em>. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh serta dosis terbaik pemberian pupuk organik cair eceng gondok dengan dosis yang berbeda terhadap kandungan pigmen <em>N. oculata</em>. Metode yang digunakan adalah metode eksperimental. Penelitian ini dilakukan di Laboratorium Reproduksi Ikan dan Laboratorium Perikanan Air Tawar Sumberpasir Fakultas Perikanan dan Ilmu Kelautan Universitas Brawijaya sejak bulan Februari sampai Mei 2023. Penelitian ini menggunakan RencanaAcak Lengkap (RAL) dengan 5 perlakuan dan masing – masing 3 pengulangan. Dosis pemberian Pupuk Organik Cair Eceng Gondok (POC EG) adalah A (4,07 ml/L), B (5,38 ml/L), C (6,69 ml/L), D (8 ml/L) dan kontrol (Walne 1 ml/L). Pengamatan dilakukan selama 9 hari dengan fase puncak kepadatan berada pada hari ke-7. Hasil penelitian menunjukkan bahwa perlakuan berpengaruh nyata terhadap laju pertumbuhan spesifik, β-karoten dan klorofil-a. Dosis terbaik perlakuan POC EG untuk laju pertumbuhan spesifik adalah 6,33 ml/L sebesar 0,24/hari, dosis POC EG 6,53 ml/L dengan hasil β-karoten sebanyak 3,19 µg/mL, dan dosis POC 6,55 ml/L dapat menghasilkan klorofil-a sebesar 0,06 µg/mL. Perlakuan kontrol menunjukan hasil lebih baik sebesar 10% pada laju pertumbuhan, 74% pada kandungan klorofil a, dan 9,5% pada kandungan β-karoten.<br /><br />Water hyacinth is often considered as a weed and can harm aquatic organisms. However, proper processing of water hyacinth can have a positive effect, one of these preparations is liquid organic fertilizer which can have an effect on phytoplankton. Phytoplankton plays an important role in the availability of oxygen in waters and as natural food for zooplankton and small fish. One type of phytoplankton is <em>Nannochloropsis oculata</em>. The aim of this research was to determine the effect and best dose of giving water hyacinth liquid organic fertilizer at different doses on the pigment content of <em>N. oculata</em>. The method used is an experimental method. This research was conducted at the Fish Reproduction Laboratory and Freshwater Fisheries Laboratory, Sumberpasir, Faculty of Fisheries and Marine Sciences, Brawijaya University from February to May 2023. This research used a Completely Randomized Plan (RAL) with 5 treatments and 3 repetitions each. The dosage of water hyacinth liquid organic fertilizer (POC EG) is A (4.07 ml/L), B (5.38 ml/L), C (6.69 ml/L), D (8 ml/L) and control (Walne 1 ml/L). Observations were carried out for 9 days with the peak concentration phase being on the 7th day. The results showed that the treatment had a significant effect on the specific growth rate, β-carotene and chlorophyll-a. The best dose of POC EG treatment for specific growth rate is 6.33 ml/L with a specific growth rate of 0.24/day, the dose of POC EG is 6.53 ml/L with a β-carotene yield of 3.19 µg/mL, and a POC dose of 6.55 ml/L can produce chlorophyll-a of 0.06 µg/mL. The control treatment showed better results of 10% in growth rate, 74% in chlorophyll a content, and 9.5% in β-carotene content.</p> Mukhammad Eka Purnama Huda, Arning Wilujeng Ekawati, Heny Suprastyani Copyright (c) 2024 http://creativecommons.org/licenses/by-nc/4.0 https://jfmr.ub.ac.id/index.php/jfmr/article/view/973 Sat, 30 Mar 2024 00:00:00 +0000 In Vitro Anti-Vibrio Activity of Miana Leaves (Coleus scutellarioides (L) Benth) https://jfmr.ub.ac.id/index.php/jfmr/article/view/905 <p>The aim of this research is to determine the bioactive compounds of miana leaves of Coleus scutellarioides (L) Benth against Vibrio spp.. This research was carried out from April to August 2018 at the Fish Pests and Diseases Laboratory, Department of Fisheries, Gadjah Mada University. Miana leaf samples were dried at room temperature, macerated with ethanol solvent and tested for antibacterial activity. Separation of bioactive compounds was carried out using liquid partition and silica gel using the column chromatography method. MIC (minimum inhibitory concentration) is applied to evaluate antibacterial activity. The results showed that the highest antibacterial activity was found in the chloroform fraction with inhibitory zone diameters for V. parahaemolitycus, V. alginolitycus, and V. harveyii of 25 mm, 26 mm, and 20 mm at a dose of 20 µg/disk. These findings indicate that the antibacterial activity of miana leaf crude extract is comparable to oxytetracycline with inhibition zones of 25 mm, 31 mm and 20 mm respectively against similar bacterial strains at 20 µg/disk. Therefore, miana leaves are a prospective natural source of anti-vibrio compounds.</p> Buana Basir, Alim Isnansetyo, Indah Istiqomah Copyright (c) 2024 http://creativecommons.org/licenses/by-nc/4.0 https://jfmr.ub.ac.id/index.php/jfmr/article/view/905 Sat, 30 Mar 2024 00:00:00 +0000 Uji Toksisitas Akut Ibuprofen pada Ikan Cere (Gambusia affinis) https://jfmr.ub.ac.id/index.php/jfmr/article/view/1014 <p>Senyawa anti nyeri merupakan salah satu kelompok senyawa baru yang ditemukan mencemari perairan. Senyawa ini dapat dikonsumsi dengan atau tanpa resep, sehingga penggunaannya tidak terpantau dengan baik. Hal ini berpotensi meningkatkan konsentrasi kelompok senyawa ini di perairan, dan berdampak buruk bagi organisme akuatik terutama ikan. Penelitian ini bertujuan menganalisis dampak letal dan subletal ibuprofen (IBU) pada Ikan Cere (<em>G. affinis</em>). Nilai konsentrasi letal median (LC<sub>50</sub>) IBU pada Ikan Cere yaitu 151 mg/L, 104.7 mg/L, 115.6 mg/L, dan 67.7 mg/L setelah paparan 24, 48, 72 dan 96 jam. Peningkatan konsentrasi IBU dapat menurunkan sintasan, tetapi meningkatkan mortalitas Ikan Cere. IBU meningkatkan konsumsi oksigen terlarut secara signifikan pada paparan IBU dengan konsentrasi 2 mg/L setelah 8 jam, dan 13 mg/L setelah 4 jam dan 8 jam. IBU menyebabkan peningkatkan konsumsi oksigen terlarut secara signifikan pada konsentrasi 2 mg/L setelah 8 jam, dan 13 mg/L setelah 4 jam dan 8 jam. Selain itu, IBU juga dapat menyebabkan gangguan sistem koordinasi tingkah laku makan. Ikan Cere menunda waktu mendekati makanannya setelah dipuasakan selama 48 jam dengan rata-rata sebesar &gt;50 detik setelah 48 jam, &gt;150 detik setelah 72 jam, dan &gt;100 detik setelah 96 jam. Penelitian ini menunjukkan bahwa senyawa IBU berdampak letal pada konsentrasi yang tinggi. IBU juga meningkatkan konsumsi oksigen terlarut yang berhubungan dengan peningkatan aktivitas motorik dan menurunkan selera makan ikan cere pada konsentrasi yang relatif rendah.<br /><br />Pain relievers are one of emerging contaminants which are found in aquatic ecosystems. This compound can be consumed with or without prescription, so its use is not well monitored. This could potentially increase the concentration of this group of compounds, and have negative impacts on aquatic organisms, especially fish. This study aimed to analyze the lethal and sub-lethal effects of ibuprofen (IBU) on the mosquitofish (<em>G. affinis</em>). Median lethal concentration (LC<sub>50</sub>) values of IBU in the fish were 151 mg/L, 104.7 mg/L, 115.6 mg/L, and 67.7 mg/L after 24, 48, 72 and 96 h, respectively. Their survival and mortality rates increased along with increasing of IBU concentration. IBU also caused significant disturbances in oxygen consumption levels at 2 mg/L after 8 h and 13 mg/L after 4 h and 8 h, respectively. Furthermore, IBU interfered coordination of feeding activity. This study showed that the exposed fish delayed in finding their food (foraging behavior) after an average of &gt;50 sec after 48 h, &gt;150 sec after 72 h, and &gt;100 sec after 96 h. This study suggests that IBU induces lethal at high concentrations, and increases oxygen consumption that links to high motoric activity, but disrupts foraging activity of the mosquitofish at relatively low concentrations.</p> Ade Yamindago, M. Arif As’adi, Widi Nugroho, Evania Balqis Haris, Rosella Ayu Loviana Devi Copyright (c) 2024 http://creativecommons.org/licenses/by-nc/4.0 https://jfmr.ub.ac.id/index.php/jfmr/article/view/1014 Sat, 30 Mar 2024 00:00:00 +0000 Asosiasi Siganus canaliculatus di Padang Lamun Pulau Melahing dan Pulau Kedindingan Kota Bontang Kalimantan Timur https://jfmr.ub.ac.id/index.php/jfmr/article/view/842 <p><em>Siganus canaliculatus</em> merupakan spesies yang hidup bergerombol dan menjadikan padang lamun sebagai habitatnya. Asosiasi <em>S. canaliculatus</em> pada fase biologisnya berkaitan dengan karaktersitik spesies lamun penyusun padang lamun. Tujuan penelitian untuk mengetahui sebaran individu <em>S. canaliculatus</em> di padang lamun Pulau Melahing dan Pulau Kedindingan Kota Bontang-Kalimantan Timur. Penelitian dilaksanakan pada bulan Maret – Desember 2021. Lokasi pengambilan sampel terbagi menjadi 2 stasiun yang didasarkan dari karakteritik spesies lamun penyusun padang lamun. Pengambilan sampel <em>S. canaliculatus</em> menggunakan alat tangkap pasif yaitu <em>trap net</em>. Pengambilan sampel lamun dilakukan dengan metode transek, sampel air maupun substrat dasar mengikuti pola transek lamun. Analisis hubungan antara panjang total <em>S. canaliculatus</em> dengan spesies lamun menggunakan uji korelasi <em>Pearson Product Moment.</em> Spesies lamun yang ditemukan terdiri dari 7 spesies dan jumlah individu <em>S. canaliculatus</em> yang tertangkap selama penelitian sebanyak 427 individu. <em>Siganus canaliculatus</em> pada fase belum dewasa (<em>pre mature</em>) berasosiasi erat dengan <em>H. minor</em>, <em>C. serrulata</em> dan <em>C. rotundata</em>. <em>Siganus canaliculatus</em> pada fase dewasa (<em>mature</em>) berasosiasi erat dengan <em>E. acoroides.<br /></em><br /><em>Siganus canaliculatus</em> is a species that lives in groups and makes seagrass beds its habitat. The association of <em>S. canaliculatus</em> in their biological phase is related to the characteristics of seagrass species that make up seagrass beds. The aim of the research was to determine the distribution of <em>S. canaliculatus</em> individuals in the seagrass beds of Melahing and Kedindingan Island, Bontang City, East Kalimantan. The study was carried out in Maret – Docember 2021. The sampling location was divided into 2 stations based on the characteristics of the seagrass species that make up the seagrass beds. <em>Siganus canaliculatus</em> sampling using passive fishing gear, namely trap net (belat : local name). Seagrass sampling was carried out using the transect method and samples of water and soil texture followed the seagrass transect pattern. Analysis of the relationship between the total length of <em>S. canaliculatus</em> and seagrass species using the Pearson Product Moment correlation test. The seagrass species found consisted of 7 species and the number of <em>S. canaliculatus</em> individuals caught during the study was 427 individuals. <em>Siganus canaliculatus</em> in the immature phase (pre mature) is closely associated with <em>H. minor</em>, <em>C. serrulata</em> and <em>C. rotundata</em>. <em>Siganus canaliculatus</em> in the mature phase is closely associated with <em>E. acoroides</em>.</p> Aditya Irawan, Jailani Jailani, Lily Inderia Sari Copyright (c) 2024 http://creativecommons.org/licenses/by-nc/4.0 https://jfmr.ub.ac.id/index.php/jfmr/article/view/842 Sat, 30 Mar 2024 00:00:00 +0000 Pencegahan Infeksi Bakteri Aeromonas hydrophila pada Ikan Lele Dumbo (Clarias gariepinus) dengan Kombinasi Madu dan Patikan Kerbau (Euphorbia hirta) https://jfmr.ub.ac.id/index.php/jfmr/article/view/1001 <p>Penyakit ikan adalah kendala yang sering dijumpai dalam kegiatan budidaya ikan. Bakteri <em>Aeromonas hydrophila </em>merupakan bakteri penyebab munculnya penyakit MAS (<em>Motile Aeromonad Septicemia)</em>. Penggunaan antibiotik merupakan salah satu cara penanggulangan penyakit ikan. Namun penggunaan antibiotik secara berlebihan dan dalam jangka panjang menyebabkan resistensi bakteri terhadap antibiotik serta tidak ramah lingkungan. Penggunaan bahan alam seperti madu dan patikan kerbau <em>(Euphorbia hirta) </em>sebagai imunostimulan dapat pertahanankan tubuh ikan terhadap infeksi bakteri <em>A. hydrophila</em>. Madu dan patikan kerbau <em>(E. hirta) </em>memiliki komponen antibakteri seperti flavonoid, tanin, saponin, terpenoid, polifenol, hydrogen peroksida serta kandungan gula pada madu yang mampu melawan bakteri. Penelitian ini dilakukan bertujuan untuk mengetahui pengaruh pemberian kombinasi madu dan patikan kerbau <em>(E. hirta) </em>serta perbandingan kombinasi yang baik dalam menghambat infeksi bakteri <em>A. hydrophila </em>pada ikan lele dumbo. Penelitian menggunakan Rancangan Acak Lengkap terdiri dari 3 perlakuan perbandingan kombinasi dengan ulangan sebanyak 3 kali serta serta 2 perlakuan kontrol (Negatif dan positif) sebagai pembanding. Perbandingan kombinasi yang digunakan yaitu 2 : 1 (1000 ml madu + 500 ml air rebusan patikan kerbau), 1,5 : 1,5 (750 madu + 750 air rebusan patikan kerbau) dan 1 : 2 (500 ml madu + 1000 ml air rebusan patikan kerbau). Pencegahan dilakukan dengan merendam ikan pada setiap perlakuan perbandingan sekitar 1 - 2 menit selama 30 hari. Hasil penelitian menunjukan pencegahan infeksi bakteri <em>A. hydrophila </em>pada ikan lele dumbo menggunakan kombinasi madu dan patikan kerbau tidak memberikan pengaruh nyata ditinjau dari paramater hematologi (Eritrosit, leukosit dan hemoglobin), parameter kelulushidupan dan pertumbuhan mutlak. Namun parameter gejala klinis menunjukkan pengaruh positif terlihat dari gejala klinis yang ditimbulkan pasca infeksi bakteri yang lebih ringan.<br /><br />Fish disease is an obstacle that is often encountered in aquaculture activities. The bacteria <em>Aeromonas hydrophila</em> is the bacteria that causes the disease MAS (<em>Motile Aeromonad Septicemia</em>). The use of antibiotics is one way to control fish diseases. However, excessive and long-term use of antibiotics causes bacterial resistance to antibiotics and is not eco-friendly. The use of natural ingredients such as honey and buffalo starch (<em>Euphorbia hirta</em>) as immunostimulants can defend the fish's body against infection with the <em>A. hydrophila</em> bacteria. Honey and buffalo starch (<em>E. hirta</em>) have antibacterial components such as flavonoids, tannins, saponins, terpenoids, polyphenols, hydrogen peroxide and sugar content in honey which can fight bacteria. This research was carried out with the aim of finding out the effect of giving a combination of honey and buffalo patikan (<em>E. hirta</em>) as well as a good comparison of the combination in inhibiting <em>A. hydrophila</em> bacterial infection in African catfish. The research used a Completely Randomized Design consisting of 3 treatment combinations with 3 replications and 2 control treatments (negative and positive) as comparisons. The ratio of combinations used is 2 : 1 (1000 ml honey + 500 ml buffalo patikan boiled water), 1.5 : 1.5 (750 honey + 750 buffalo patikan boiled water) and 1 : 2 (500 ml honey + 1000 ml water buffalo stew). Prevention is carried out by soaking the fish in each treatment ratio for around 1 - 2 minutes for 30 days. The results of the study showed that preventing Aeromonas hydrophila bacterial infection in African catfish using a combination of honey and buffalo starch did not have a real effect in terms of hematological parameters (erythrocytes, leukocytes and hemoglobin), survival and absolute growth parameters. However, clinical symptom parameters show a positive influence as seen from the milder clinical symptoms that arise after bacterial infection.</p> Maksima Jumina, Yuliana Salosso, Asriati Djonu Copyright (c) 2024 http://creativecommons.org/licenses/by-nc/4.0 https://jfmr.ub.ac.id/index.php/jfmr/article/view/1001 Sat, 30 Mar 2024 00:00:00 +0000 Kondisi Tutupan Turf Algae dan Kualitas Perairan di Selat Sempu, Malang https://jfmr.ub.ac.id/index.php/jfmr/article/view/1029 <p><em>Turf algae </em>merupakan salah satu organisme yang menjadi indikator kesehatan ekosistem terumbu karang. Organisme ini bahkan dapat mendominansi suatu daerah dan menekan angka tutupan terumbu karang dalam kondisi perairan tertentu. Hal ini tentunya menjadi ancaman bagi kelestarian suatu ekosistem yang berdampak pada perekonomian masyarakat sekitar melalui jumlah hasil tangkapan ikan. Maka dari itu penelitian ini dilaksanakan guna melakukan <em>monitoring </em>pada luas tutupan <em>turf algae </em>di Perairan Selat Sempu pada bulan Agustus tahun 2023. Metode yang digunakan yaitu sepuluh <em>Underwater Photo Transect </em>(UPT) pada kelima stasiun dengan panjang transek sejauh 100 meter yang dibantu oleh transek kuadran berukuran 1 x 1 m. Penelitian ini menggunakan beberapa data parameter perairan yang memengaruhi luas tutupan <em>turf algae </em>seperti suhu, salinitas, kecerahan, DO, arus, sedimentasi, pH, nitrat, dan fosfat. Hasil yang diperoleh yaitu tutupan tertinggi terjadi pada stasiun Banyu Tawar sebesar 1.3042,05 cm<sup>2</sup> dan tutupan terendah pada stasiun Waru-Waru sebesar 488,7 cm<sup>2</sup>. Data parameter perairan yang telah diukur memiliki nilai yang optimal dengan pH yang memiliki rentang 7,5–8,1 <em>dissolved oxygen </em>(DO) pada rentang 6,8–7 mg/L, salinitas 34,2-34,4‰, nitrat 0,9-2,1 mg/L, dan fosfat 0,03-0,17 mg/L<em>, </em>di mana nilai parameter ini mendukung pertumbuhan <em>turf algae</em>.<br /><br /><em>Turf algae </em>is an organism that is an indicator of the health of coral reef ecosystems. This organism can even dominate an area and suppress coral reef cover in certain water conditions. This is of course a threat to the sustainability of an ecosystem which has an impact on the economy of the surrounding community through the amount of fish caught. Therefore, this research was carried out to monitor the extent of <em>turf algae </em>cover in the Sempu Strait waters in August 2023. The method used was ten Underwater Photo Transects (UPT) at five stations with a transect length of 100 meters assisted by quadrant transects measuring 1 x 1 m. This research uses several water parameter data that influence the extent of <em>turf algae </em>cover, such as temperature, salinity, brightness, DO, currents, sedimentation, pH, nitrate and phosphate. The results obtained were that the highest cover occurred at Banyu Tawar station at 1,3042.05 cm<sup>2</sup> and the lowest cover at Waru-Waru station at 488.7 cm<sup>2</sup>. The water parameter data that has been measured has optimal values with pH having a range of 7.5–8.1 dissolved oxygen (DO) in the range 6.8–7 mg/L, salinity 34.2-34.4‰, nitrate 0.9-2.1 mg/L, and phosphate 0.03-0.17 mg/L, where these parameter values support the growth of turf algae.</p> Andik Isdianto, Salsabila Nazmie Putri Syarief, Khalil Gibran, Muhammad Naufal Eka Putra, Annisa Shafira P. Pattisahusiwa, Syafrial Yanuar Ishaq, Tedy Eko Saputra, Sefhanissa Puspa Retno Nizery, Muhammad Arif Asadi, Arief Setyanto, Berlania Mahardika Putri, Aulia Lanudia Fathah, Novar Kurnia Wardana, Supriyadi Supriyadi, Oktiyas Muzaky Luthfi Copyright (c) 2024 http://creativecommons.org/licenses/by-nc/4.0 https://jfmr.ub.ac.id/index.php/jfmr/article/view/1029 Sat, 30 Mar 2024 00:00:00 +0000 Deteksi Intrusi Air Laut dengan Pengukuran TDS dan Konduktivitas pada Sumur Bor Pantai Amal Tarakan https://jfmr.ub.ac.id/index.php/jfmr/article/view/884 <p>Kelurahan Pantai Amal Kota Tarakan berbatasan langsung dengan lautan yang dapat mengakibatkan rentannya kondisi kualitas air tanah. Sumur bor sebagai salah satu upaya penyediaan air bersih berpotensi mengalami intrusi air laut. Intrusi air laut merupakan proses infiltrasi air laut ke dalam tanah. Penelitian ini bertujuan untuk mendeteksi potensi intrusi air laut dengan pengukuran <em>Total Dissolved Solids</em> (TDS) dan konduktivitas di Kelurahan Pantai Amal Kota Tarakan. Penelitian dilakukan pada 5 lokasi sampling. Penentuan lokasi dilakukan secara <em>purpossive sampling</em>, sedangkan metode yang digunakan untuk melihat keterkaitan antar parameter adalah regresi linear berganda. Hasil penelitian menunjukkan bahwa pengukuran TDS secara berturut-turut 62; 60,3; 146; 57; dan 153 mg/L. Nilai tersebut masih di bawah standar baku mutu air berdasarkan Permenkes RI No 32 Tahun 2017 untuk keperluan hiegiene sanitasi. Konduktivitas tiap stasiun secara berturut-turut dengan jarak antara sumur bor ke garis pantai adalah 310,45 µS/cm dan 692 m; 1125 µS/cm dan 62 m; 239 µS/cm dan 163 m; 1019 µS/cm dan 112 m; serta 406 µS/cm dan 360 m. Hasil analisis parameter konduktivitas dan TDS menunjukkan bahwa tidak terdeteksi adanya intrusi air laut pada sumur bor Pantai Amal Tarakan. Analisis menggunakan regresi linear berganda juga menunjukkan bahwa tidak ada pengaruh antara jarak dan kedalaman terhadap konduktivitas.<br /><br />Pantai Amal Village, Tarakan City, is directly adjacent to the ocean leads to the vulnerability of groundwater quality conditions. Drill well, one of the efforts to provide clean water, has the potential to experience seawater intrusion. Seawater intrusion is the process of infiltrating seawater into the ground. This study aims to detect potential seawater intrusion by measuring TDS and conductivity in Pantai Amal Village, Tarakan City. The study was conducted at five sampling locations. The location is determined by purposive sampling, while the method used to see the relationship between parameters was multiple linear regression. The results showed that the TDS measurements were 62; 60.3; 146; 57; and 153 mg/L. This value is still below the water quality standard based on the Ministry of Health of the Republic of Indonesia No. 32 of 2017 for sanitation hygiene purposes. The conductivity for each station successively with the distance between the borehole to the shoreline are 310.45 µS/cm and 692 m; 1125 µS/cm and 62 m; 239 µS/cm and 163 m; 1019 µS/cm and 112 m; and 406 µS/cm and 360 m. The results of the analysis of conductivity and TDS showed that no sea water intrusion was detected in the drilled wells of Pantai Amal Tarakan. Analysis using multiple linear regression also shows that there is no influence between distance and depth on conductivity.</p> Heni Irawati, Tuty Alawiyah, Daraisa Daraisa, M. Gandri Haryono, Nuraidah Nuraidah Copyright (c) 2024 http://creativecommons.org/licenses/by-nc/4.0 https://jfmr.ub.ac.id/index.php/jfmr/article/view/884 Sat, 30 Mar 2024 00:00:00 +0000 Analisis Implementasi Kebijakan Pengembangan Pakan Mandiri di Kabupaten Tulungagung https://jfmr.ub.ac.id/index.php/jfmr/article/view/1036 <p>Kegiatan budidaya merupakan usaha untuk memperoleh ataupun membesarkan ikan yang salah satu faktor pendukung utama yaitu pakan, khususnya pada pakan buatan. Pemerintah pusat telah menciptakan program GERPARI (Gerakan Pakan Ikan Mandiri) yang bertujuan untuk menekan biaya pakan hingga kurang dari 60% sehingga mampu mewujudkan budidaya perikanan yang tangguh dan mandiri. Tujuan dari penelitian ini yaitu 1) Menganalisis implementasi program GERPARI; 2) Menganalisis persepsi pembudidaya ikan dan <em>stakeholder</em>; 3) Menganalisis faktor pendukung dan penghambat dari program GERPARI di Kabupaten Tulungagung. Metode pengambilan sampel dilakukan secara <em>purposive</em>. Narasumber dalam penelitian yaitu kelompok pembudidaya ikan yang memperoleh bantuan GERPARI sebanyak 22 responden serta <em>stakeholder </em>(dinas perikanan) sebanyak 3 responden. Alat analisis menggunakan indikator <em>policy output </em>dan<em> policy outcome.</em> Hasil kesimpulan sebagai berikut : Terjadi ketidakberhasilan atas implementasi dari Program Pakan Mandiri (GERPARI). Persepsi yang timbul dari pembudidaya ikan dan <em>stakeholder</em> (dinas perikanan) 100% menyatakan paham terkait GERPARI karena memiliki kelebihan dan kekurangan dari penerapannya.<br /><br />Cultivation activities are efforts to obtain or raise fish, with one of the main supporting factors being feed, especially artificial feed. The central government has created the GERPARI program (Movement for Independent Fish Feed) aimed at reducing feed costs to less than 60%, thus enabling the realization of robust and independent fisheries cultivation. The objectives of this research are: 1) Analyzing the implementation of the GERPARI program; 2) Analyzing the perceptions of fish cultivators and stakeholders; 3) Analyzing supporting and inhibiting factors of the GERPARI program in Tulungagung Regency. The sampling method was done purposively. The informants in the study were a group of fish cultivators who received GERPARI assistance, totaling 22 respondents, and stakeholders (fisheries department) totaling 3 respondents. The analysis tool uses indicators of policy output and policy outcome. The conclusions are as follows: There is a failure in implementing the Independent Feed Program (GERPARI). The perceptions arising from fish cultivators and stakeholders (fisheries department) are 100% aware of GERPARI because its application has advantages and disadvantages.</p> Andi Riyanto, Sinung Rahardjo, Lilik Sulistyowati Copyright (c) 2024 http://creativecommons.org/licenses/by-nc/4.0 https://jfmr.ub.ac.id/index.php/jfmr/article/view/1036 Sat, 30 Mar 2024 00:00:00 +0000