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Juvenil: Jurnal Ilmiah Kelautan dan Perikanan
Published by Universitas Trunojoyo Madura
ISSN : -     EISSN : 27237583     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science
Juvenil: Journal of Marine and Fisheries Sciences, is a scientific journal in the field of marine and fisheries science published electronically and periodically four times a year by the Department of Marine Affairs and Fisheries, Trunojoyo University, Madura. This journal aim to become a medium of dissemination of high quality research and scientific note in the fiend of marine and fisheries. This journal can be accessed and downloaded freely for everyone. The article published in this journal have been pass the rigorious peer review by the expert reviewer. This journal accept every article that contain the following, but not limited to, scope: Juvenil: Journal of Marine and Fisheries Sciences, is a scientific journal in the field of marine and fisheries science published electronically and periodically four times a year by the Department of Marine Affairs and Fisheries, Trunojoyo University, Madura. This journal is expected to function as a medium for the dissemination of quality scientific research results as well as scientific rebuttal (notes) in the marine and fisheries sector which can be accessed online and free of charge by the Indonesian community and the international community. The articles (articles) published in this journal are articles that have passed peer-review (partner bebestari). This journal accepts every article which contains, but is not limited to, the scope: 1. Ecology and biology of marine and fisheries 2. Marine and Aquaculture 3. Marine and Aquatic Conservation 4. Marine Water Pollution 5. Management of marine and aquatic resources 6. Marine and fishery processing technology
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 285 Documents
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Kelimpahan Bakteri Vibrio sp. Pada Sampel Air Tambak di UPT Laboratorium Kesehatan Ikan dan Lingkungan Pasuruan Jawatimur Kristin Natalia Ambat; Indah Wahyuni Abida; Rena Maherlina
Juvenil Vol 3, No 3 (2022)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v3i3.16461

Abstract

ABSTRAKVibrio sp. adalah bakteri patogen yang menjadi penyebab utama dari gagalnya budidaya atau pertambakan. Vibriosis merupakan salah satu penyakit yang timbul akibat adanya bakteri Vibrio sp. yang berpotensi menjadi penyebab kematian organisme air khususnya udang. Metode yang digunakan dalam menghitung kelimpahan bakteri Vibrio sp. dapat dilakukan dengan cara melihat koloni bakteri di cawan petri yaitu TVC (Total Vibrio Count). Sampel yang diambil dari air tambak budidaya atau kolam pemeliharaan udang dan organisme yang lainnya dikultur di media agar TCBS (Thiosulfate Citrate Bile Salt Sucrose Agar). Penelitian ini dilaksanakan di UPT Laboratorium Kesehatan Ikan dan Lingkungan, Pasuruan, Jawa Timur dari tanggal 17 Januari sampai 17 Februari 2022 dengan tujuan mengetahui nilai Total Vibrio Count (TVC) pada sampel air tambak di Unit Pelaksana Teknis Laboratorium Kesehatan Ikan dan Lingkungan, Pasuruan, Jawa Timur. Hasil Total Vibrio pada sampel air tambak yang telah dianalisis di UPT Laboratorium Kesehatan Ikan dan Lingkungan dengan no.sampel 041, 061, 063, 064, dan 065 berturut turut sebesar 0 CFU/ml; 1,0 × 101 CFU/ml; 0 CFU/ml; 3,0 × 101 CFU/ml dan 0 CFU/ml, dimana nilai ini berbeda dengan air tambak dengan no.sampel 075 mendapati hasil sebesar 4,8 × 103 CFU/ml (koloni warna kuning) dan sebesar 1,1 × 103 CFU/ml (koloni warna hijau), sampel no.080 sebesar 7,6 × 103 CFU/ml (koloni kuning saja), dan sampel no.082 yakni sebesar 9,6 × 103 CFU/ml (koloni kuning saja).Kata Kunci: Bakteri Vibrio sp., Total Vibrio Count (TVC), VibriosisABSTRACTVibrio sp. are pathogenic bacteria that are the main cause of failure of cultivation or aquaculture. Vibriosis is a disease caused by the bacteria Vibrio sp. which can potentially cause the death of aquatic organisms, especially shrimp. The method used to calculate the abundance of Vibrio sp. This can be done by looking at the bacterial colonies in a petri dish, namely TVC (Total Vibrio Count). Samples taken from aquaculture pond water or shrimp rearing ponds and other organisms are cultured on TCBS (Thiosulfate Citrate Bile Salt Sucrose Agar) agar. This research was conducted at UPT Fish and Environmental Health Laboratory, Pasuruan, East Java from 17 January to 17 February 2022 with the aim of knowing the Total Vibrio Count (TVC) value in pond water samples at the Technical Implementation Unit of the Fish and Environmental Health Laboratory, Pasuruan, East Java. Total Vibrio results in pond water samples that have been analyzed at UPT Fish and Environmental Health Laboratory with sample no. 041, 061, 063, 064, and 065, respectively, are 0 CFU/ml; 1.0 × 101 CFU /ml; 0 CFU/ml; 3.0 × 101 CFU/ml and 0 CFU/ml are still in different ranges with water ponds with sample no. 075 found results of 4.8 × 103 CFU/ml (yellow colonies) and 1.1 × 103 CFU/ml (green colonies), sample no.080 of 7.6 × 103 CFU/ ml (yellow colonies only), and sample no. 082 which is 9.6 × 103 CFU/ml (yellow colonies only).Keywords: Vibrio sp. Bacteria, Total Vibrio Count (TVC), Vibriosis
Manajemen Kualitas Air Pada Pembenihan Ikan Lele Mutiara (Clarias gariepinus) di Balai Benih Ikan (BBI) Pamekasan Elfira Puspa Sugianti; Hafiludin Hafiludin
Juvenil Vol 3, No 2 (2022)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v3i2.15813

Abstract

ABSTRAKIkan lele merupakan jenis ikan yang memiliki tingkat pertumbuhan cepat serta mampu hidup di perairan dengan kondisi buruk. Penelitian ini dilakukan di Balai Benih Ikan (BBI) Pamekasan dari tanggal 3 Januari-2 februari 2022 dengan tujuan mengetahui pengukuran kualitas air pada pembenihan ikan lele mutiara (Clarias gariepinus). Pengukuran kualitas air pada pembenihan ikan lele mutiara (Clarias gariepinus) meliputi pH, suhu, DO (Dissolved Oxygen), dan kecerahan yang dilakukan pada 5 kolam pemijahan. Nilai pH yang dihasilkan berkisar 8,1-8,3, nilai suhu berkisar25,7-27,80C, nilai DO (Dissolved Oxygen) berkisar 8,5-8,7 mg/L, dan nilai kecerahan 25 cm. Hasil kualitas air pada kolam pemijahan ikan lele mutiara (Clarias gariepinus) relevan dengan penelitian sebelumnya dan sudah memenuhi standar baku mutu SNI.Kata kunci : Ikan lele mutiara, pembenihan dan kualitas airABSTRACTCatfish is a type of fish that has a fast growth rate and able to live in waters with bad conditions. This research was conducted at the Fish Seed Center (BBI) Pamekasan from January 3 to February 2, 2022 with the aim of knowing the measurement of water quality in the hatchery of pearl catfish (Clarias gariepinus). Measurements of water quality in pearl catfish hatcheries (Clarias gariepinus) including pH, temperature, DO (Dissolved Oxygen), and brightness were carried out in 5 spawning ponds. The resulting pH values ranged from 8.1-8.3, the temperature values ranged from 25.7-27.80C, the DO (Dissolved Oxygen) values ranged from 8.5-8.7 mg/L, and the brightness value was 25 cm. The results of water quality in spawning ponds of pearl catfish (Clarias gariepinus) are relevant to previous studies and SNI quality standards.Key words : Catfish, hatchery and water quality
Perbedaan Pemberian Dosis Pakan Kombinasi Jentik Nyamuk (Culex sp) Dan Cacing Sutra (Tubifex sp) Terhadap Pertumbuhan Biomasa Ikan Cupang (Betta sp) Di Bak Pemeliharaan Maria Agustini; Muhajir Muhajir; Nahdiya Diinanaa
Juvenil Vol 3, No 2 (2022)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v3i2.15138

Abstract

ABSTRAKIkan Cupang (Betta splendens) merupakan salah satu jenis ikan hias yang digemari di Indonesia. Peminat ikan ini bertambah seiring perkembangan teknologi dan pemasaran, baik secara online maupun offline. Pemilihan pakan yang kurang tepat menyebabkan pertumbuhan ikan yang tidak sesuai dengan usia ikan. Salah satu alternatif makanan yang biasa dipakai adalah pakan alami berupa jentik nyamuk dan cacing sutra. Penelitian ini mengkaji efektifitas pakan alami tersebut terhadap pertumbuhan ikan Cupang. Penelitian menggunakan Rancangan Acak Lengkap, dengan 4 perlakuan, dan setiap perlakuan memiliki 6 ulangan. Sampel tiap perlakuan adalah 1 ekor ikan Cupang betina usia 2 bulan. Pemeliharaan selama 4 minggu, dengan pengukuran biomassa ikan setiap minggu. Parameter Kualitas air meliputi pH, suhu dan oksigen terlarut (DO). Perbedaan jenis pakan alami tidak memberikan pengaruh yang berbeda pada pertumbuhan ikan Cupang Pertumbuhan biomassa ikan Cupang dengan pakan A (100% cacing sutra) 10,2 gr, B (100%  dan D (25% cacing sutra dan 75 jentik nyamuk) sebesar 2,8 gr.  Pengukuran kualitas air selama penelitian di dapatkan pH air pada kisaran 7,2 – 7,6, sementara suhu pada 26,5 - 27,0 oC dan DO 4,2-4,8 ppm.Kata kunci: pakan alami, ikan cupang, pertumbuhan biomassa, kualitas air, perbedaan dosis ABSTRACTBetta fish (Betta splendens) is one of ornamental fishes, which are popular in Indonesia. Its enthusiasts increase because of the development of technology and marketing, both online and offline. Selections of improper food cause the fish to grow slower than its size according to the age. One commonly used alternative food is natural food such as mosquito larvae and silk worms. This study examines the effectiveness of the natural food on the growth of Betta fish. This research used a completely randomized design, with four treatments, and each treatment had six replications. Samples of each treatment were two month-old female Betta fish. The fish were treated for 4 weeks, with fish biomass measured each week. Additional parameters were pH, temperature and dissolved oxygen (DO). The different types of natural food had no different effect on the growth of Betta fish. Biomass growth of Betta fish fed with A (100% silk worms) 10.2 g, B (100% mosquito larvae) 7.8 g, C (50% silk worms and 50 % mosquito larvae) 5.8 g, and D (25% silk worms and 75 %larvae mosquitoes) of 2.8 g. pH water was in range of 7,2 – 7,6, while the temperature was at 26,5 - 27,0 oC and DO 4,2-4,8  ppm.Keywords:  natural feeds, betta fish, absolute weight growth, quality water,
Pengaruh Penambahan Tepung Spirulina Terhadap Komposisi Proksimat Donat Junianto Junianto
Juvenil Vol 3, No 3 (2022)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v3i3.17011

Abstract

ABSTRAKPenelitian ini bertujuan untuk menentukan tingkat penambahan terbaik tepung spirulina pada donat yang paling disukai berdasarkan karakteristik organoleptik dan analisis proksimat. Metode penelitian dilakukan secara eksperimental terdiri atas 4 perlakuan penambahan tepung spirulina sebesar 0%, 8%, 10%, dan 12%  dengan 15 panelis semi terlatih sebagai ulangan. Parameter yang diamati yaitu karakteristik organoleptik yang meliputi  kenampakan, aroma, rasa dan tekstur dan analisis proksimat. Analisis uji kesukaan menggunakan uji Friedman dan untuk menentukan karakteristik yang paling penting menggunakan uji Bayes. Uji Proksimat dianalisis secara deskriptif. Berdasarkan hasil penelitian, produk yang paling disukai panelis adalah donat spirulina dengan penambahan tepung spirulina sebesar 10% yang memiliki kenampakan yang baik, memiliki aroma yang khas tetapi tidak terlalu menyengat, rasa yang manis dan gurih, dan tektur yang empuk dan renyah, dengan nilai median kenampakan, aroma, rasa, tektur masing masing 7. Hasil uji proksimat menunjukkan donat yang paling disukai dengan penambahan spirulina 10% memiliki kadar air 23,21%, kadar abu 0,93%, kadar karbohhidrat 72,15%, kadar protein 18,36%, dan kadar lemak 6,95%.Kata kunci: Tepung Spirulina, Donat, Tingkat Kesukaan, Analisis Proksimat.ABSTRACTThis study aims to determine the best addition rate of spirulina flour to the most preferred donuts based on organoleptic characteristics and proximate analysis. The research method was carried out experimentally consisting of 4 treatments with the addition of spirulina flour of 0%, 8%, 10%, and 12% with 15 semi-trained panelists as replicates. Parameters observed were organoleptic characteristics which included appearance, aroma, taste and texture and proximate analysis. The analysis of the preference test uses the Friedman test and to determine the most important characteristics using the Bayes test. Proximate test was analyzed descriptively. Based on the results of the study, the most preferred product by the panelists was spirulina donuts with the addition of 10% spirulina flour which had a good appearance, had a distinctive aroma but not too strong, a sweet and savory taste, and a soft and crunchy texture, with a median value. the appearance, aroma, taste, texture of each 7. The results of the proximate test showed that the most preferred donut with the addition of 10% spirulina had a water content of 23.21%, an ash content of 0.93%, a carbohydrate content of 72.15%, a protein content of 18, 36%, and 6.95% fat content.Key words: Spirulina Flour, Donuts, Preference Level, Proximate Analysis.
Kelimpahan Bulu Babi (Echinoidea) di Perairan Gili Raja Kabupaten Sumenep Dian Maharani; Wahyu Andy Nugraha
Juvenil Vol 3, No 2 (2022)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v3i2.16549

Abstract

ABSTRAKBulu babi adalah kelompok hewan tidak bertulang belakang Avertebrata yang termasuk dalam filum Echinodermata.  Hewan ini banyak ditemukan  pada perairan  dangkal dan biasanya terdapat  pada padang lamun dan daerah  terumbu karang.  Di seluruh dunia, terdapat kurang lebih 800 jenis bulu babi dari kelas Echinodea   yang   terbagi dalam dua subkelas yaitu Perischoechinoidea dan Echinoidea. Oi Indonesia sendiri, terdapat  kurang  lebih  84 jenis  bulu babi  yang berasal  dari  31 suku dan 48  marga. Perairan pulau  Gill  Raja  Panjang memiliki beberapa  biota echinodermata salah satunya bulu babi. Bulu babi tersebar di ekosistem padang lamun dan terumbu karang. Keberadaan bulu babi berpengaruh pada  terumbu  karang,  karena dapat  mejadi  kontrol  bagi perkembangan mikroalga  dan  meningkatnya bulu babi akan  berdampak   negatif bagi ekosistem lamun. Bulu babi yang di dapatkan yaitu Diedema setosum, Sa/macis belli, Mespi/ia g/obu/us, Echinometra mathaei. Kelimpahan bulu babi di Pulau Gill Raja berkisar antara 3-4.33 ind/m2,  dengan kelimpahan tertinggi terdapat di Stasiun II 4.33 ind/m2 dan terendah di stasiun I yaitu sebesar 3 ind/m2. Keanekaragaman bulu babi di Pulau Gili Raja tergolong dalam keanekaragaman rendah  dengan nilai sebesar 0,415, keseragaman tergolong keseragaman rendah sampai tinggi mempunyai nilai sebesar 0,743 sempai 0,498, dan dominansi tergolong  dalam dominansi sedang dengan  nitai sebesar 0,712.Kata Kunci  : Bulu Babi,  line transect,  dan Statified random  sampling.ABSTRACTSea urchins are a group of invertebrate animals belonging to the phylum Echinoderms. These animals are mostly found in shallow waters and are usually found in seagrass beds and coral reef areas. Worldwide, there are approximately 800 species of sea urchins from the Echinodea class which is divided into two subclasses, Perischoechinoidea and Echinoidea. Oi Indonesia itself, there are approximately 84 types of sea urchins originating from 31 tribes and 48 genera. The waters of the Gill Raja Panjang island have several echinoderms, one of which is sea urchins. Sea urchins are scattered in seagrass and coral reef ecosystems. The presence of sea urchins has an effect on coral reefs, because it can be a control for microalgae development and the increase in sea urchins will have a negative impact on seagrass ecosystems. The sea urchins that were obtained were Diedema setosum, Sa/macis belli, Mespi/ia g/obu/us, Echinometra mathaei. The abundance of sea urchins on Gill Raja Island ranged from 3-4.33 ind/m2, with the highest abundance at Station II 4.33 ind/m2 and the lowest at station I at 3 ind/m2. The diversity of sea urchins on Gili Raja Island is classified as low diversity with a value of 0.415, uniformity belonging to low to high uniformity has a value of 0.743 to 0.498, and dominance is classified as moderate dominance with a value of 0.712.Keywords : Sea urchins, line transect,  dan Statified random  sampling 
Pengaruh Suhu yang Berbeda Pada Sistem Transportasi Kering Tertutup Terhadap Kelulusan Hidup Ikan Nila(Oreochromis niloticus) Pada Ukuran 100 Gram Nurul Hayati; Agus Sutoyo; Didik Budiyanto
Juvenil Vol 3, No 2 (2022)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v3i2.14715

Abstract

ABSTRAKTujuan dari penelitian yang ingin dicapai penulis adalah untuk mengetahui suhu terbaik untuk sistem transportasi kering tertutup terhadap kelulus hidupan ikan nila (Oreochromis sp) pada ukuran 100 gram dari Mojokerto ke Lamongan. Sedangkan manfaat dari penelitian ini adalah untuk mengetahui pengaruh suhu yang berbeda pada sistem transportasi kering tertutup terhadap kelulus hidupan ikan nila (Oreochromis nilotikus) pada ukuran 100 gram dari Mojokerto ke Lamongan. Penelitian ini menggunakan metode eksperimen. Rancangan percobaan menggunakan rancangan acak lengkap (RAL) dengan 3 perlakuan dan 9 kali ulangan yaitu, perlakuan A adalah penurunan suhu 8ºC,perlakuan B adalah suhu 12ºC, dan perlakuan C adalah suhu 16ºC. Hasil penelitian diperoleh data bahwa pengaruh suhu yang berbeda pada system transportasi kering tertutup berpengaruh nyata terhadap kelulus hidupan ikan nila (Oreochromis nilotikus) pada ukuran 100 gram dari Mojokerto ke Lamongan, pada perlakuan C memberikan kelulus hidupan tertinggi yaitu 35%. Data kualitas air pada penyadaran diperoleh suhu berkisar 29,9-30ºC, Dissolved Oksigen berkisar 4,5-5,7 ppm, dan derajat kesamaan berkisar 6,9-7,2.Kata Kunci: Ikan nila,penurunan suhu, Kelulusan hidup, transportasi ABSTRACTThe aim of this research is to find out the best temperature for a closed dry transport system for the survival rate of tilapia (Oreochromis sp) at a size of 100 grams from Mojokerto to Lamongan. While the benefits of this study were to determine the effect of different temperatures on a closed dry transportation system on the survival rate of tilapia (Oreochromis nilotikus) at a size of 100 grams from Mojokerto to Lamongan. This research is using experimental method. The experimental design used a completely randomized design (CRD) with 3 treatments and 9 replications, namely, treatment A was a decrease in temperature of 8ºC, treatment B was a temperature of 12ºC, and treatment C was a temperature of 16ºC. The results showed that the effect of different temperatures on a closed dry transportation system had a significant effect on the survival rate of tilapia (Oreochromis nilotikus) at a size of 100 grams from Mojokerto to Lamongan. Treatment C gave the highest survival rate of .35%. Water quality data on awareness obtained temperature ranged from 29.9 - 30ºC, Dissolved Oxygen ranged from 4.5 to 5.7 ppm, and the degree of similarity ranged from 6.9 to 7.2.Keywords: Tilapia, Temperature Reduction, Graduation, Transportation
Pengujian Proksimat dan Daya Simpan Burger Ikan Nila (Orechromis niloticus) pada Suhu Dingin (5'C) Muhammad Alghifary Gumay; Syahrul Syahrul; Dian Iriani
Juvenil Vol 3, No 2 (2022)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v3i2.15933

Abstract

ABSTRAKPenelitian ini bertujuan untuk mengetahui karakteristik mutu burger ikan nila (Oreochromis niloticus) dengan  formulasi terbaik selama masa simpan suhu dingin (50C). Penelitian ini diawali dengan penelitian pendahuluan untuk mengetahui formulasi terbaik dari burger ikan nila dan dilanjutkan dengan penelitian utama yaitu untuk mengetahui karakteristik mutu burger ikan nila dengan formulasi terbaik selama masa simpan suhu dingin (50C). Parameter analisis yang diamati pada penelitian pendahuluan adalah analisis proksimat (kadar air, kadar protein, kadar kadar lemak, kadar abu), sedangkan pada penelitian utama adalah organoleptik (kenampakan, aroma, rasa dan tekstur), uji mikrobiologi (Angka Lempeng Total), uji aw. Hasil penilaian komposisi proksimat menunjukkan bahwa formulasi terbaik burger ikan nila  (Oreochromis niloticus) adalah formulasi F2. Selama penyimpanan pada suhu dingin (50C) burger ikan nila (Oreochromis niloticus) dengan formulasi terbaik (F2) memiliki daya tahan selama 7 hari dengan nilai alt 2,4x104koloni/gram dan aw 0,60.Kata Kunci: burger ikan nila, uji organoleptik, uji ALT, uji aW, masa simpanABSTRACTThis research aims to determine the characteristics of tilapia burger (Oreochromis niloticus) with the best formulation during cold storage (50C). This research started with preliminary research, to determine the best formulation of tilapia burger and continued with the primary research to determine the quality characteristics of tilapia burger with the best formulation during cold storage (50C). The parameters observed in the preliminary research was proximate analysis (moisture, protein, fat, and ash content), while in the primary study were the organoleptic test (appearance, aroma, taste and texture), microbiology test (Total Plate Number), aw test. The proximate composition results showed that the best formulation for tilapia burger was the F2 formulation. During storage at cold temperature (50C) tilapia burger with the best formulation (F2) had a shelf life of 7 days with a Total Plate Count of 2.4x104 colony/gram and aw 0.60.Keywords: tilapia burger, organoleptic test, TPC test, aw test, shelf life
Karakterisasi Fisiologis Isolat bakteri Halofilik dari kolam Peminihan Tambak Garam Rakyat Di Kabupaten Pamekasan Kartika Dewi; Eka Nurrahema Ning Asih; Dewi Anugrah Fitri; Sri Astutik
Juvenil Vol 3, No 3 (2022)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v3i3.17074

Abstract

ABSTRAKKelompok bakteri slight halofilik dapat ditemukan di air laut pada kolam peminihan yang menjadi bahan baku utama dalam pembuatan garam di Pamekasan-Madura. Tujuan penelitian ini adalah untuk mengetahui karakteristik biokimia isolat bakteri halofilik yang di isolasi dari kolam peminihan pada tambak garam rakyat di Pamekasan-Madura. Metode yang digunakan dalam penelitian ini yaitu pengujian biokimia bakteri halofilik meliputi pewarnaan Gram, uji indol, katalase, dan oksidase, uji metil red, uji Voges Proskauer, asimilasi citrat, dan uji pemanfaatan sumber karbon. 3 isolat berhasil ditumbuhkan dalam media padat halophile menggunakan kadar garam sebesar 1% dengan kode P.P.1, P.P.2 dan P.P.3. Hasil uji indol ketiga isolat bakteri halofilik P.1, P.2 dan P3 menunjukkan hasil uji indol negatif.  Sumber karbon yang digunakan bakteri tersebut diantaranya glukosa, sukrosa dan mallosa dengan uji O/F, fermentative untuk isolat P.P.1 dan P.P.3 sedangkan non fermentatif untuk isolate P.P.2. Uji MR-VP menunjukkan hasil negatif untuk ke tiga isolat tersebut. Uji katalase dan uji oksidasi masing-masing isolat menunjukkan hasil positif, sehingga isolat P.P.1, P.P.2 dan P.P.3 termasuk bakteri aerob. Kata kunci: slight halofilik, kolam peminihan, uji biokimiaABSTRACTA diverse group of slight halophilic bacteria can be found in saline enviroment such purification water of traditional salt production Pamekasan-Madura. The existence of slight halophilic microbial communities from purification water of traditional salt production have not been used optimally. The aim of this study was biochemical characterization of the halophilic bacteria isolated from traditional salt production Pamekasan- Madura. The biochemical characterization were done using standart methodes which included indole test, catalase and oxidase activities, methyl red test, Voges-Proskauer (VP) test, citrate utilization test and carbohydrates utilisation . 3 isolates, P.P.1, P.P.2 and P.P.3 were successfully grown in halophile agar plates containing 2% of total salt. All of these isolates were negative for indole production and MR-VP test, but were positive for catalase and oxidase activities.  The carbon sources used by these isolates included glucose, sucrose and mallose with the O/F test was fermentative for P.P.1 and P.P.3 while non-fermentative for P.P.2. All of these isolates were identified as aerob bacteria.Keyword: slight halophilic, purification water, biochemical characterization
Histopatologi Jaringan Insang Ikan Betok (Anabas testudineus Bloch,1792) Akibat Paparan Logam Berat Kromium (Cr) DI Sungai Desa Geluran Kabupaten Sidoarjo Yogi Eko Prasetyo; Indah Wahyuni Abida; Mertiara Ratih Terry Laksani; Rizka Rahmana Putri
Juvenil Vol 3, No 4 (2022)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v3i4.17615

Abstract

ABSTRAKKromium (Cr) merupakan salah satu logam berat, kromium di alam bebas memiliki valensi (Cr3+) dan valensi (Cr6+). Cr6+ lebih toksik dibandingkan dengan Cr3+, karena sifatnya yang mudah larut dalam air. Dampak kromium bagi organisme akuatik dapat mengganggu metabolisme tubuh akibat terhalangnya enzim dalam proses fisiologis. Penelitian ini bertujuan untuk mengetahui kadar kromium dan mengetahui pengaruh kromium terhadap histopatologi jaringan insang, usus, dan hati ikan betok di Sungai Desa Geluran Sidoarjo. Penelitian ini di ambil pada bulan Desember 2020 sampai bulan April 2021. Metode yang digunakan pada pengambilan data adalah metode purposive sampling, dimana titik 1 sebelum ada pembuangan limbah, titik 2 dekat dengan pembuangan limbah dan titik 3 pada pertemuan air setelah pembuangan limbah dengan aliran air lain. Jumlah sampel ikan yang digunakan untuk preparat histologi yakni sebanyak 3 ekor pada setiap stasiun. Hasil analisa kromium didapatkan hasil pada titik 1, 2 dan 3 masing masing berkisar antara 0,001-0,004 ppm;  0,013, - 0,028ppm dan 0,011-0,021ppm. Hasil analisa histopatologi organ ikan jaringan insang pada titik 1 ditemukan berupa hiperplasia, di titik 2 dan 3 terdapat fusi lamela. Kata kunci: histopatologi, insang, ikan betok (Anabas testudineus), logam berat kromiumABSTRACTKromium (Cr) is one of the heavy metals, kromium in nature has valence (Cr3+) and valence (Cr6+). Cr6+ is more toxic than Cr3+, because it is easily soluble in water. The impact of kromium on aquatic organisms can disrupt the body's metabolism due to the obstruction of enzymes in physiological processes. This study aims to determine the levels of kromium and determine the effect of kromium on the histpathology of the gill, intestine, and liver tissue of Betok fish in the Geluran Sidoarjo River Village. This research was taken from December 2020 to April 2021. The method used in data collection is a purposive sampling meth where point 1 is before waste disposal, point 2 is close to waste disposal and point 3 is at the confluence of water after waste disposal with other water flows. The number of fish samples used for histological preparations was 3 at each station. The results of kromium analysis obtained results at points 1, 2 and 3 each ranging between 0.001-0.004 ppm; 0.013, - 0.028ppm and 0.011-0.021ppm. The results of histopathological analysis of the gill tissue of fish organs at the first point were found to be in the form of hyperplasia, at the second and third points there was lamella fusion.Keywords: histopathology,gill, betok fish (Anabas testudineus), kromium heavy metal
Penilaian Keberlanjutan Pengelolaan Hasil Tangkapan Ikan Layang (Decepterus sp.) di WPP 712, Perairan Utara Kabupaten Sumenep Ari Deki Wahyudi; Achmad Fachruddin Syah
Juvenil Vol 3, No 4 (2022)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v3i4.18169

Abstract

ABSTRAKLaut jawa memiliki potensi sumberdaya perikanan yang menjanjikan, hasil tangkapan utama di laut jawa yaitu ikan layang dengan komposisi 60% dari total produksi dengan alat tangkap purse seine. Penelitian ini bertujuan untuk mengidentifikasi kebutuhan data indikator pada masing masing domain, memberikan penilaian pada domain dengan metode (EAFM), dan mengetahui rekomendasi perbaikan pada pengelolaan perikanan ikan layang (Decepterus sp.) di perairan utara Sumnep. Metode EAFM menggunakan analisa data multi criteria analysis pada 6 domaian, yaitu domain sumberdaya ikan, habitat dan ekosistem, teknik penangkapan, ekonomi, sosial, dan kelembagaan. Hasil yang diperoleh yaitu pada domain sumberdaya ikan memperoleh nilai indeks komposit 88.28, habitat dan ekosistem sebesar 91.04, teknik penangkapan sebesar 86.67, sosial sebesar 75.14, ekonomi sebesar 92.21, kelembagaan sebesar 75.84.Status pengelolaan sumberdaya perikanan mendapatkan status (baik sekali) dengan nilai indeks komposit sebesar 84.86.Kata kunci: Ikan layang, EAFM, Pengankapan, Laut JawaABSTRAKThe Java Sea has a promsing potential for fisheryresources, the main catch in the Java Sea is flyfish with a composition of 60% of the total production with purse seine fishing gear. This study aims to identify the need for indicator data in each domain, provide an assement of the domain using the (EAFM) method, and find out recommendations for improvement in the management of scad fish (Decepterus sp.) fisheries in the northern waters of Sumenep. The EAFM method uses multi-criteria analysis of data on 6 domains, namely the domain of fish resources, habitats and ecosystems, fishing techniques, economics, social, and institutions. The result obtained are in the fish resources domain, the composite indexs value is 88.28, habitat and ecosystem is 91.04, fishing technique is 86.67, sosial is 75.41, economic is 92.21, institutional is 75.84, The status of fishery resources management is (very good) with an index value composite 84.86.Keywords: Flying fish, EAFM, Capture, Java Sea

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