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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
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Search results for , issue "Vol 5, No 2: Mei (2024)" : 12 Documents clear
Pengaruh MS-222 Terhadap Kelangsungan Hidup Arwana Silver (Osteoglossum biccirrhosum) Dengan Sistem Transportasi Basah Tertutup Kornelis Boy Bolang; Sri Oetami Madyowati; Didik Budiyanto; Achmad Kusyairi
Juvenil Vol 5, No 2: Mei (2024)
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.v5i2.22287

Abstract

ABSTRACTIkan arwana merupakan ikan hias air tawar yang cukup populer di Indonesia. Santan (2011), dalam pengangkutan ikan hias, salah satu faktor penting yang perlu diperhatikan adalah teknik transportasi. Untuk mengatasinya, satu-satunya cara yang ditempuh adalah dengan memperbaiki teknik transportasi (Agus LSP, 2007). Disamping itu jarak yang jauh dari daerah tersebut ke lokasi perdagangan yang menjadi faktor pembatas sehingga diperlukan metode transportasi yang efektif dan efisien (menekan biaya), waktu dan tenaga, teknik transportasi yang tepat (Syarifuddin, et al 2014). Salah satu cara dengan sistem transportasi basah tertutup menggunakan plastik berisi udara dan ditambahkan oksigen murni (Nirmala et al. 2012). Tujuan untuk mengetahui pengaruh MS-222 (tricaine methanesulfonate) terhadap kelangsungan hidup ikan arwana silver (Osteoglossum bicirroshum) selama pengangkutan sistem transportasi basah tertutup dari Surabaya ke Denpasar Bali. Metode eksperimental, dengan 4 perlakuan, yaitu A 0,5 mg MS-222 menghasilkan SR 90,00 % , B 1mg menghasilkan SR 95,71 %, C 1,5 mg menghasilkan SR 98,10 %, D 2 mg MS-222 menghasilkan SR 87,14 %,. Selanjutnya dilakukan pengamatn SR pada akhir pengiriman, ketika tiba di Denpasar, Bali. Berdasarkan hasil perhitungan pemberian dosis MS-222 yang berbeda berpengaruh nyata terhadap kelangsungan hidup (SR) ikan arwana silver dalam sistem transportasi basah tertutup dari Surabaya ke Denpasar Bali. Kata kunci: Sistem Transportasi Basah Tertutup, MS-222 (Tricaine Methanesulfonate), arwana silver (Osteoglosum bicirrhosum).ABSTRACTArwana fish is a freshwater ornamental fish that is quite popular in Indonesia. Santan (2011), in transporting ornamental fish, one of the important factors that needs to be considered is the transportation technique. To overcome this, the only way to do this is to improve transportation techniques (Agus LSP, 2007). Besides, the long distance from the area to the trading location is a limiting factor so that effective and efficient transportation methods (reducing costs), time and energy, and appropriate transportation techniques are needed (Syarifuddin, et al 2014). One method is a closed wet transportation system using plastic filled with air and pure oxygen added (Nirmala et al. 2012). The aim was to determine the effect of MS-222 (tricaine methanesulfonate) on the survival of silver arowana fish (Osteoglossum bicirroshum) during closed wet transportation system transportation from Surabaya to Denpasar Bali. Experimental method, with 4 treatments, namely A 0.5 mg MS-222 produces SR 90.00%, B 1mg produces SR 95.71%, C 1.5 mg produces SR 98.10%, D 2 mg MS-222 produces SR 87.14%. Next, SR observations were carried out at the end of the delivery, when it arrived in Denpasar, Bali. Based on the calculation results, giving different doses of MS-222 had a significant effect on the survival (SR) of silver arowana fish in a closed wet transportation system from Surabaya to Denpasar, Bali.Key words: Closed wat transport system, MS-222 (Tricaine Methanesulfonate), silver arwana (Osteoglosum bicirrhosum).
Aktivitas Antioksidan Anggur Laut (Caulerpa sp.) Dari Pulau Sapudi Dengan Metode Pengeringan Berbeda Erpiana Damayanti; AB. Chandra; Hafiludin Hafiludin
Juvenil Vol 5, No 2: Mei (2024)
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.v5i2.25639

Abstract

ABSTRAKAnggur laut (Caulerpa sp.) merupakan salah satu jenis alga hijau yang tumbuh di beberapa wilayah Indonesia, diantaranya Pulau Sapudi, Madura. Penelitian ini bertujuan untuk mengetahui aktivitas antioksidan pada anggur laut (Caulerpa sp.) asal Pulau Sapudi Madura dengan metode pengeringan yang berbeda. Metode yang digunakan dalam penelitian ini, yaitu perhitungan rendemen, analisis proksimat, analisis fitokimia dan analisis antioksidan menggunakan DPPH (2,2-diphenyil-1-picrylhydrazyl). Hasil dari penelitian menunjukkan anggur laut dengan metode pengeringan sinar matahari memiliki randemen 11,62%, sedangkan sampel anggur laut dengan pengeringan angin memiliki randemen sebesar 7,87%. Hasil analisis proksimat sampel kering menunjukkan bahwa anggur laut dengan pengeringan sinar matahari memiliki kadar air 10,33%, kadar abu 27,62%, kadar lemak 0,07%, kadar protein 0,87%, kadar serat 0,20% dan kadar karbohidrat 60,92%. Sampel anggur laut dengan pengeringan angin memiliki kandungan kadar air 12,11%, kadar abu 38,15%, kadar lemak 0,13%, kadar protein 0,87%, kadar serat 0,25% dan kadar karbohidrat 48,49%. Ekstrak kasar sampel anggur laut dengan pengeringan sinar matahari menunjukkan adanya kandungan alkaloid dan saponin. Sementara ekstrak kasar sampel anggur laut dengan pengeringan angin menunjukkan adanya kandungan saponin dan fenol hidrokuinon. Hasil analisis antioksidan dari perbandingan kuarsetin diperoleh nilai 2,640 ppm. Aktivitas antioksidan dari sampel kering sinar matahari memiliki nilai IC50 sebesar 491,961 ppm yang berarti aktivitas antioksidannya sangat lemah. Sementara sampel kering angin memiliki nilai IC50 sebesar 199,932 ppm yang artinya aktivitas antioksidannya lemahKata Kunci: Anggur laut (Caulerpa sp.), antioksidan, pengeringan berbedaABSTRACTSea grapes (Caulerpa sp.) are a type of green algae that grows in several regions of Indonesia, including Sapudi Island, Madura. This research aims to determine the antioxidant activity of sea grapes (Caulerpa sp.) from Sapudi Island, Madura using different drying methods. The methods used in this research are yield calculation, proximate analysis, phytochemical analysis and antioxidant analysis using DPPH (2,2-diphenyl-1-picrylhydrazyl). The results of the research showed that sea grapes using the sun drying method had a yield of 11.62%, while sea grape samples using wind drying had a yield of 7.87%. The results of proximate analysis of dried samples showed that sun-dried sea grapes had a water content of 10.33%, ash content of 27.62%, fat content of 0.07%, protein content of 0.87%, fiber content of 0.20% and carbohydrates 60.92%. Wind-dried sea grape samples had a water content of 12.11%, ash content of 38.15%, fat content of 0.13%, protein content of 0.87%, fiber content of 0.25% and carbohydrate content of 48.49%. Sun-drying crude extracts of sea grape samples showed the presence of alkaloids and saponins. Meanwhile, wind-drying crude extracts of sea grape samples showed the presence of saponins and phenol hydroquinone. The results of antioxidant analysis from the comparison of quarcetin obtained a value of 2,640 ppm. The antioxidant activity of the sun-dried samples had an IC50 value of 491.961 ppm, which means the antioxidant activity was very weak. Meanwhile, the wind-dried sample had an IC50 value of 199.932 ppm, which means the antioxidant activity was weak.Keywords: Sea Grapes (Caulerpa sp.), antioxidant, different drying
Pengaruh Pemberian Probiotik Ikan Terhadap Kualitas Air Pada Pendederan Ikan Lele Sangkuriang (Clarias gariepnus) di Desa Durbuk, Pamekasan Dwian Lumbangaol; Rifky Aryasatya; Muhammad Zainuri; Abdus Salam Junaedi
Juvenil Vol 5, No 2: Mei (2024)
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.v5i2.24575

Abstract

ABSTRAKIndonesia merupakan negara maritim yang memiliki banyak pulau, pulau tersebut mempunyai sumber daya perairan yang melimpah. Indonesia memiliki potensi perairan yang sangat besar baik dalam sektor kelautan dan sektor perikanan. Jenis ikan air tawar yang cukup digemari oleh masyarakat yaitu ikan lele, selain karena harganya yang relatif murah, cara perkembangbiakannya sederhana, pertumbuhan cepat, dan memiliki kandungan gizi yang cukup. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian probiotik terhadap kualitas air meliputi suhu, pH, DO (Dissolved Oxygen) dan amonia pada kolam pendederan ikan lele sangkuriang. Penelitian dilaksanakan dengan menggunakan metode RAL (Rancangan Acak Lengkap) dengan 3 kolam dan 3 perlakuan diantaranya tanpa perlakuan probiotik, probiotik ke air dan probiotik ke pakan ikan. Data penelitian dikumpulkan dari bulan November hingga Desember 2023. Hasil pengukuran dan analisis di laboratorium menunjukkan hasil pengukuran suhu, pH dan DO yang paling optimal berdasarkan SNI 6484.3 Tahun 2014 yaitu suhu pagi pada kolam 2 yaitu 27,96 ℃ dan suhu sore 29,85 ℃, pH pagi pada kolam 2 yaitu 8,11 dan pH sore 9,26, DO (Dissolved Oxygen) pada kolam 2 yaitu pada awal 2,51 mg/L dan akhir 3,11 mg/L dan amonia terendah yaitu kolam 1 dengan nilai 2,385 mg/L dan 2,050 mg/L. Hasil pengujian ini menunjukkan bahwasanya probiotik yang diberikan kepada kolam perlakuan tidak berpengaruh nyata terhadap kualitas air yaitu suhu dan pH karena nilai signifikansi yang diperoleh 0,05. Hasil penelitian juga menunjukkan nilai Log TPC (CFU/ml) koloni bakteri yang ditemukan pada kolam ikan dengan perlakuan yang berbeda masing-masing memiliki nilai yang berbeda dari setiap seri pengenceran yang digunakan.    Kata Kunci : Ikan lele sangkuriang, probiotik dan kualitas air.ABSTRACTIndonesia is a maritime country that has many islands, these islands have abundant water resources. Indonesia has enormous water potential both in the marine sector and the fisheries sector. A type of freshwater fish that is quite popular with the public is catfish, apart from its relatively cheap price, simple breeding method, fast growth and sufficient nutritional content. This research aims to determine the effect of providing probiotics on water quality including temperature, pH, DO (Dissolved Oxygen) and ammonia in Sangkuriang catfish nursery ponds. The research was carried out using the RAL (Completely Randomized Design) method with 3 ponds and 3 treatments including no probiotic treatment, probiotics in the water and probiotics in the fish feed. Research data was collected from November to December 2023. The results of measurements and analysis in the laboratory showed that the results of temperature, pH and DO measurements were the most optimal based on the 2014 6484.3 SNI, namely the morning temperature in pool 2 was 27.96 ℃ and the afternoon temperature was 29.85 ℃. Morning pH in pool 2 is 8.11 and afternoon pH is 9.26, DO (Dissolved Oxygen) in pool 2 is 2.51 mg/L at the beginning and 3.11 mg/L at the end and the lowest ammonia is pool 1 with a value of 2.385 mg/L and 2,050 mg/L. The results of this test showed that the probiotics given to the treatment ponds did not significantly affect the water quality, namely temperature and pH because the significance value obtained was 0.05. The results also showed that the Log TPC (CFU/ml) value of bacterial colonies found in fish ponds with different treatments each had different values from each dilution series used.Keywords : Sangkuriang catfish, probiotics and water quality.
Pengaruh Frekuensi Pemberian Pakan Yang Berbeda Terhadap Pertumbuhan Berat Mutlak Udang Vaname (Litopenaeus vannamei) Dalam Bak Pemeliharaan Fabian Diaz Abdillah; Maria Agustini; Sumaryam Sumaryam
Juvenil Vol 5, No 2: Mei (2024)
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.v5i2.22386

Abstract

ABSTRAKUdang vaname memiliki pasar yang cepat di tingkat dunia. Penyediaan pakan berkualitas tinggi merupakan faktor penting yang menentukan keberhasilan budidaya udang. Pada usaha budidaya intensif, pakan mampu menyerap 60% - 70% dari total biaya produksi udang. Tujuan penelitian ini untuk mengetahui frekuensi pemberian pakan yang tepat terhadap pertumbuhan berat mutlak udang vaname (L. vannamei). Berdasarkan hasil penelitian setelah dianalisis dengan statistik, maka dapat disimpulkan bahwa pemberian frekuensi pakan yang berbeda berpengaruh nyata terhadap pertumbuhan berat mutlak udang vaname, perlakuan pemberian pakan dengan frekuensi 4x memberikan hasil tertinggi sebesar 0,38 gr/hari. Data kualitas air berturut-turut suhu air berkisar 26 – 30OC, pH 7,8 – 8,2, kandungan oksigen terlarut 4,7– 5,2 ppm, salinitas 35 - 37 ppt, amonia (NH4) 0 – 0,5 mg/L, nitrit (NO2) 0,016-0,028 mg/L, fosfat (PO4) 0 – 0,5 mg/L, dan TOM 92-103 mg/L. Namun nilai Total Organic Matter (TOM) tergolong tidak layak dalam proses budidaya udang vaname karena melebihi batas yang dapat ditoleransi oleh udang vaname yakni 55 mg/L.Kata kunci: Udang vaname, frekuensi pakan, pertumbuhan berat mutlak, kualitas airABSTRACTVaname shrimp has a fast market at the world level. Provision of high quality feed is an important factor that determines the success of shrimp farming. In intensive aquaculture, feed is able to absorb 60% - 70% of the total cost of shrimp production. The aim of this study was to determine the proper frequency of feeding on the absolute weight growth of vannamei shrimp (L. vannamei). Based on the research results after being analyzed, it can be concluded that the provision of different feeding frequencies has a significant effect on the absolute weight growth of vannamei shrimp, the treatment of feeding with a frequency of 4x gives the highest yield of 0.38 g/day. Water quality data successively water temperature ranges from 26 – 30oC, pH 7.8 – 8.2, dissolved oxygen content 4.7 – 5.2 ppm, salinity 35 – 37 ppt, ammonia (NH4) 0 – 0.5 mg/L, nitrite (NO2) 0.016-0.028 mg/L, phosphate (PO4) 0-0.5 mg/L, and TOM 92-103 mg/L. However, the Total Organic Matter (TOM) value is classified as inappropriate in the process of cultivating vannamei shrimp because it exceeds the limit that can be tolerated by vannamei shrimp, which is 55 mg/L.Keywords: Vaname shrimp, feed frequency, absolute weight growth, quality water
Studi Proses Pengolahan Udang Vaname Mentah Beku (Litopenaeus vannamei) Bentuk Butterfly Tail On (BTO) Aldo Fito; A.S.F.Q.R. Mubarok
Juvenil Vol 5, No 2: Mei (2024)
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.v5i2.24295

Abstract

ABSTRAKUdang vanamei (Litopenaeus vannamei) merupakan salah satu komoditas perikanan yang memiliki nilai ekonomis yang tinggi. Baik sebagai produk dalam negeri ataupun internasional. Untuk dapat dipasarkan salah satu cara untuk mengolah udang vanme adalah dengan cara pembekuan. Tujuan penelitian ini adalah untuk mengetahui proses dari udang vaname beku bentuk butterfly tail on dan perhitungan neraca massa. Metode pembekuan yang digunakan untuk produk udang beku bentuk butterfly tail on adalah individual quick freezing (IQF). Hasil dari penelitian ini adalah proses pembekuan udang vaname beku bentuk butterfly tail on yang memiliki sembilan tahapan. Sembilan tahapan itu meliputi penerimaan bahan baku, pemotongan kepala, sortasi size, pengupasan butterfly tail on, perendaman, pembekuan IQF, metal detector, pengemasan dan penyimpan cold storage. Proses pengolahan udang vaname beku bentuk butterfly tail on menghasilkan rendemen produk akhir sebanyak 4.184 kg (52,3%).Kata Kunci: udang vaname, proses pengolahan, pengolahan udang beku, Neraca Massa.ABSTRACTVanamei shrimp (Litopenaeus vannamei) is a fishery commodity that has high economic value. Both as domestic and international products. To be marketable, one way to process vanme shrimp is by freezing. The aim of this research is to determine the process of frozen vaname shrimp in the butterfly tail shape and mass balance calculations. The freezing method used for butterfly tail on frozen shrimp products is individual quick freezing (IQF). The result of this research is the process of freezing frozen vaname shrimp in the form of butterfly tail on which has nine stages. The nine stages include receiving raw materials, cutting heads, size sorting, stripping butterfly tails on, soaking, IQF freezing, metal detector, packaging and cold storage. The processing of frozen vaname shrimp in the shape of butterfly tail on resulted in a final product yield of 4,184 kg (52.3%).Keywords: vaname shrimp, processing process, frozen shrimp processing, Mass Balance.
Pengaruh Padat Penebaran Yang Berbeda Terhadap Kelulushidupan dan Pertumbuhan Berat Mutlak Benih Ikan Gurami (Osphronemus gourame) Melinda Kustiana; Indra Wirawan; Didik Budiyanto; Angga Pratama Putra
Juvenil Vol 5, No 2: Mei (2024)
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.v5i2.21874

Abstract

ABSTRAKIkan gurami sudah lama dibudidayakan oleh peternak ikan di Indonesia, namun masih banyak kendala yang dihadapi oleh peternak ikan tersebut adalah laju pertumbuhan yang sangat lambat bila dibandingkan dengan ikan air tawar lainnya. Salah satu upaya untuk mengetahui faktor-faktor yang mempengaruhi laju pertumbuhan ikan yang sangat lambat antara lain dengan memberi perlakuan pada padat penebaran benih ikan. Padat penebaran benih ikan gurami optimal masih belum banyak diketahui. Penelitian ini bertujuan untuk mengetahui pengaruh padat tebar berbeda terhadap kelulushidupan dan pertumbuhan berat mutlak benih ikan gurami (O. gouramy). Metode yang dilakukan adalah menggunakan RAL (Rancangan Acak Lengkap), menggunakan 4 perlakuan, 6 ulangan. Hasil penelitian menunjukkan bahwa tingkat kelulushidupan perlakuan A memberikan hasil tertinggi sebesar 91,6% dan pertambahan berat tertinggi terdapat pada perlakuan A hasil tertinggi sebesar 3.87 gram. Kualitas air dari seluruh perlakuan selama penelitian menunjukkan kisaran yang layak dan cukup baik untuk pertumbuhan ikan gurami yaitu pH berkisar antara 7,56 – 7,61, suhu berkisar antara 26,1 – 26,2°C, dan DO berkisar antara 5,19 – 5,29 ppm.Kata kunci: Padat tebar, benih ikan gurami, kelulushidupan, pertumbuhan berat mutlak.ABSTRACTGouramy has long been cultivated by fish breeders in Indonesia, but there are still many obstacles faced by these fish breeders, namely the very slow growth rate when compared to other freshwater fish. One effort to find out the factors that affect the slow growth rate of fish, among others, is to treat the stocking density of fish seeds. Not much is known about the optimal stocking density for gouramy seeds. This study aims to determine the effect of different stocking densities on survival and growth in absolute weight of gourami (O. gouramy) fry. The method used was using RAL (Completely Randomized Design), using 4 treatments, 6 replications. The results showed that the survival rate for treatment A gave the highest yield of 91.6% and the highest weight gain was found in treatment A with the highest yield of 3.87 grams. The water quality of all treatments during the study showed a decent and good enough range for the growth of gouramy, namely the pH ranged from 7.56 – 7.61, the temperature ranged from 26.1 – 26.2°C, and the DO ranged from 5.19 – 5.29 ppm.Keywords: Stocking density, gouramy seeds, survival, absolute weight growth. 
Pengaruh Pemberian Dosis Pakan Alami Cacing Darah (Chironomus larvae) Beku Terhadap Pertumbuhan Berat Mutlak Benih Ikan Mas Koki (Carassius auratus) Umur 1-2 Bulan di Instalasi Perikanan Budidaya Mojokerto Provinsi Jawa Timur Ardhana Martadinata; Achmad Kusyairi; Muhajir Muhajir
Juvenil Vol 5, No 2: Mei (2024)
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.v5i2.22620

Abstract

ABSTRAKPertumbuhan benih ikan mas koki oranda (Carassius auratus) sangat bergantung pada ketersediaan pakan alami baik kualitas maupun kuantitasnya. Cacing sutera (Tubifex sp) sebagai pakan alami utama benih ikan mas koki oranda tidak selalu tersedia setiap saat sehingga masih bergantung pada hasil tangkapan alam dan musim. Oleh karena itu perlu dicari penggantinya dengan tetap memperhatikan kandungan nutrisinya, salah satunya cacing darah. Penelitian ini bertujuan untuk mengetahui dosis pemberian cacing darah beku (larva Chironomus) yang terbaik terhadap pertumbuhan bobot absolut benih ikan mas umur 1-2 bulan. Penelitian ini menggunakan metode eksperimen dengan rancangan acak lengkap yang terdiri dari 5 perlakuan dengan 5 ulangan. Perlakuan pada penelitian ini adalah pemberian dosis pakan alami untuk cacing darah, perlakuan A ; 4% dari berat biomassa hewan uji, perlakuan B; 6% dari berat biomassa hewan uji, perlakuan C; 8% dari berat biomassa hewan uji, perlakuan D; 10% dari berat biomassa hewan uji, perlakuan E; 12% dari berat biomassa hewan uji. Hewan uji adalah ikan oranda berumur 1-2 bulan dengan berat rata-rata 1 g/ekor. Kepadatan penebaran 2 ekor/liter dan media percobaan menggunakan air tawar dengan volume 3 liter/bak. Hasil penelitian menunjukkan bahwa perlakuan C memberikan pertumbuhan pertumbuhan bobot absolut tertinggi pada benih ikan mas oranda umur 1-2 bulan sebesar 1,68 g. Data kualitas air diperoleh suhu air berkisar antara 26,80-28,10 0C, Derajat keasaman (pH) berkisar antara 7,40 – 7,71 dan oksigen terlarut berkisar antara 7,00 – 7,43 ppm.Kata Kunci: Dosis, Cacing Darah, Chironomus, Carassius auratus, Pertumbuhan Bobot Mutlak.ABSTRACTThe growth of Oranda goldfish (Carassius auratus) fry is very dependent on the availability of natural food, both quality and quantity. Silk worms (Tubifex sp) as the main natural food for Oranda goldfish seeds are not always available at all times so they still depend on natural catches and the season. Therefore, it is necessary to look for a replacement while still paying attention to the nutritional content, one of which is blood worms. This study aims to determine the best dose of frozen blood worms (Chironomus larvae) on the absolute weight growth of goldfish fry aged 1-2 months. This research used an experimental method with a completely randomized design consisting of 5 treatments with 5 replications. The treatment in this study was a dose of natural feed for blood worms, treatment A; 4% of the weight of test animal biomass, treatment B; 6% of the weight of test animal biomass, treatment C; 8% of the biomass weight of test animals, treatment D; 10% of the weight of test animal biomass, treatment E; 12% of the biomass weight of the test animal. The test animals were oranda fish aged 1-2 months with an average weight of 1 g/fish. The stocking density was 2 fish/liter and the experimental media used fresh water with a volume of 3 liters/tub. The results showed that treatment C provided the highest  absolute  weight  growth in 1-2  month old  Oranda  goldfish  fry of 1.68 g. Water  quality  data obtained from water temperature ranged from 26.80-28.10 0C, degree of acidity (pH) ranged from 7.40 – 7.71 and dissolved oxygen ranged from 7.00 – 7.43 ppm.Keywords: Dosage, Blood Worms, Chironomus, Carassius auratus, Absolute Weight Growth.
Kandungan Limbah Pengolahan Rumput Laut dan Potensi Pemanfaatannya (Review) Wahyu Tri Handoyo; Bakti Berlyanto Sedayu; Sang Kompiang Wirawan; Arif Rahman Hakim
Juvenil Vol 5, No 2: Mei (2024)
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.v5i2.25036

Abstract

ABSTRAKPada pengolahan rumput laut menyisakan limbah padat dan cair yang belum ditangani secara optimal. Padahal penanganan tersebut sangat penting untuk menjaga keberlanjutan dan menjauhkan dampak negatif terhadap lingkungan. Salah satu strategi penanganan yang perlu dikembangkan adalah pemanfaatan limbah rumput laut yang dapat mendukung tujuan pembangunan berkelanjutan. Tujuan tulisan ini adalah untuk mengumpulkan informasi dari berbagai sumber penelitian mengenai kandungan limbah rumput laut dan potensi pemanfaatannya sehinga dapat mendukung pengembangan pengelolaan limbah rumput laut yang bernilai tambah. Sebagian besar penelitian yang telah dilakukan mengamati kandungan serat pada limbah rumput laut. Selain itu juga diamati komponen mineral dominan diantaranya mineral N, P, K, Ca, Mg. Hasil studi menunjukkan bahwa limbah tersebut memiliki kandungan serat yang cukup tinggi, namum hasilnya bervariatif. Hal yang sama juga terjadi pada kandungan mineral dominan. Kondisi ini diduga disebabkan oleh berbagai faktor baik internal maupun eksternal. Potensi pemanfaatan yang banyak dikaji adalah sebagai bahan baku bioetanol, biokomposit dan pupuk. Hasil penelitian menunjukkan tren yang positif karena didukung oleh teori yang kuat. Namun untuk saat ini sebagian besar penelitian masih dalam tahap pengembangan awal dan masih terbatas pada penelitian skala laboratorium walaupun ada beberapa penelitian yang sudah sampai pada tahap ujicoba lapang.Kata kunci: bioetanol, biokomposit, limbah rumput laut, pemanfaatan, pupukABSTRACTSeaweed processing leaves solid and liquid waste that has not been handled optimally. In fact, such handling is very important to maintain sustainability and avoid negative impacts on the environment. One handling strategy that needs to be developed is the utilization of seaweed waste that can support sustainable development goals. The purpose of this paper is to collect information from various research sources and literature regarding the content of seaweed waste and its potential utilization so that it can support the development of value-added seaweed waste management. Most of the research that has been done looks at the fiber content of seaweed waste. In addition, the dominant mineral components including minerals N, P, K, Ca, Mg were also observed. The results of the study showed that the waste has a fairly high fiber content, but the results varied. The same thing also happened to the dominant mineral content. This condition is thought to be caused by various factors both internal and external. The potential utilization that has been studied is as raw material for bioethanol, biocomposites and fertilizers. Research results show a positive trend because they are supported by strong theory. However, for now most of the research is still in the early development stage and is still limited to laboratory-scale research although there are some studies that have reached the field trial stage.Keywords: biocomposites, bioethanol, fertilizer, seaweed waste, utilization
Analisis Usaha Nelayan Tangkap dan Konstribusi Anggota Keluarga Terhadap Pendapatan Rumah Tangga di Desa Sungai Meriam Kecamatan Anggana Kabupaten Kutai Kartanegara Melina Melina; Oon Darmansyah; Erwiantono Erwiantono
Juvenil Vol 5, No 2: Mei (2024)
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.v5i2.24460

Abstract

ABSTRAKIstri nelayan di Desa Sungai Meriam selain menjadi ibu rumah tangga mereka juga ikut serta dalam membantu meningkatkan perekonomian keluarga. Sebagai seorang nelayan pekerjaan ini bergantung dengan musim dan cuaca, sehingga kurang untuk mencukupi kebutuhan keluarga. Tujuan penelitian adalah menganalisis pendapatan usaha nelayan tangkap serta menganalisis kontribusi anggota keluarga terhadap pendapatan rumah tangga Penelitian ini dilaksanakan di Desa Sungai Meriam, Kecamatan Anggana, Kabupaten Kutai Kartanegara.Sampel yang digunakan adalah anggota keluarga nelayan tangkap di Desa sungai meriam yang berjumlah 14 rumah tangga (28 responden), pengambilan sampelmenggunakan metode sensus.Metode analisis data yang digunakan dalam penelitian ini adalah analisis pendapatan dan kontribusi pendapatan keluarga.Hasil penelitian ini menunjukan bahwasanya hasil pendapatan dari usaha nelayan tangkap rata-rata sebesar Rp. 4.762.131/responden. Kontribusi pendapatan suami rata-rata 58%, kontribusi pendapatan istri dibidang perikanan rata-rata 34% dan dibidang non perikanan 24%, sedangkan kontribusi pendapatan anggota keluarga lain (anak) rata-rata 34%. Kata Kunci: analisis usaha, pendapatan, kontribusi pendapatan anggota keluarga.ABSTRACTThe wives of fishermen in Sungai Meriam Village, apart from being housewives, also participate in helping to improve the family economy. As a fisherman, this work depends on the season and weather, so it is not enough to meet family needs. The purpose of the study was to analyze the income of capture fishermen's business and analyze the contribution of family members to household income. The sample used was family members of capture fishermen in Sungai Meriam Village, Anggana District, Kutai Kartanegara Regency, totaling 14 households (28 respondents), sampling using the census method. The data analysis method used in this research is income analysis and family income contribution. The results of this study indicate that the income from the capture fishermen's business averages Rp. 4,762,131 / respondent. The contribution of husband's income averaged 58%, the contribution of wife's income in the fisheries sector averaged 34% and in the non-fisheries sector 24%, while the contribution of other family members' income (children) averaged 34%.Keywords: analysis of business, income, income contribution of family members.
Analisis Konsentrasi Chemical Oxygen Demand (COD) dan fosfor Terhadap Fitoplankton dan Zooplankton Pada Anak Sungai Way Batanghari, Kota Metro Gesti Lestari; Vifty Octanarlia Narsan; Suhendi Suhendi
Juvenil Vol 5, No 2: Mei (2024)
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.v5i2.24793

Abstract

ABSTRAKAktivitas makhluk hidup selalu berkaitan dengan kebutuhan air. Kondisi air pada suatu wilayah dapat berbeda-beda dipengaruhi aspek fisika, biologi dan kimia disekitarnya. Penelitian ini dilakukan dengan tujuan untuk mengetahui pengaruh aspek kimia berupa Chemical Oxygen Demand (COD) dan Fosfor terhadap aspek biologi berupa mikroorganisme fitoplankton dan zooplankton di perairan, yang dimanfaatkan untuk menentukan standar baku mutu perairan. Metode penelitian yaitu deskriptif kualitatif dan kuantitatif. Sampel yang digunakan adalah sampel air yang diperoleh dengan metode pengambilan sampel secara consecutiv sampling. Hasil penelitian menunjukkan bahwa terdapat perbedaan konsentrasi Chemical Oxygen Demand (COD) dan Fosfor.  Konsentrasi Chemical Oxygen Demand (COD) sebesar 67 mg/L di titik satu dan 60 mg/L di titik dua  pada bagian  titik hulu  Anak Sungai Way Batanghari  yang terletak di Desa Sumber Sari, Kecamatan Metro Selatan, Kota Metro menghasilkan status baku mutu air dengan paramater Chemical Oxygen Deman (COD) berada pada Kelas III, sedangkan di titik hilir  Anak Sungai Way Batanghari yang terletak di  Desa Banjarrejo, Kecamatan Batanghari, Kabupaten Lampung Timur dengan konsentrasi Chemical Oxygen Demand (COD) sebesar 36 mg/L di titik satu, 81 mg/L dititik dua dan 61 mg/L dititik tiga menghasilkan   status baku mutu air dengan parameter Chemical  Oxygen Demand  (COD) berada pada Kelas III.  Konsentrasi Fosfor dengan menggunakan metode uji EPA 200.7 revisi 5, 2001 menunjukkan status baku mutu air dengan parameter fosfor pada bagian titik hulu (Desa Sumber Sari, Kecamatan Metro Selatan, Kota Metro) berada di kelas II sedangkan di bagian titik hilir (Desa Banjarrejo, Kecamatan Batanghari, Kabupaten Lampung Timur) berada di Kelas II.  Status baku mutu air tersebut  memengaruhi keberadaan mikroorganisme fitoplankton dan zooplankton di Anak Sungai Way Batanghari.  Jumlah  Fitoplankton di bagian titik hulu sebanyak 39 dengan 12 spesies, sedangkan di bagian titik hilir sebanyak 18 dengan 11 spesies. Jumlah Zooplankton yang berada di titik hulu sebanyak 40 dengan 8 spesies dan di bagian titik hilir sebanyak 5 dengan 2 spesies. Dengan diketahuinya status baku mutu air sungai maka diharapkan masyarakat  terutama yang berada di Desa Sumber Sari, Kecamatan Metro Selatan, Kota Metro dan  di Desa Banjarrejo,  Kecamatan Batanghari, Kabupaten Lampung Timur dapat menggunakan air sesuai dengan peruntukkannya yaitu untuk mendukung perairan pertanian dan peternakan. Kata Kunci: Chemical Oxygen Demand (COD); fosfor; Fitoplankton; Zooplankton ABSTRACTThe activities of living organisms are always related to the need for water. The condition of water in a given area can vary, influenced by the surrounding physical, biological, and chemical aspects. This research was conducted to determine the influence of chemical aspects, namely Chemical Oxygen Demand (COD) and Phosphorus, on biological aspects, namely phytoplankton and zooplankton microorganisms in the water, which is used to determine water quality standards. The research method is descriptive qualitative and quantitative. The samples used are water samples obtained through the consecutive sampling method. The results of the study showed differences in the concentration of Chemical Oxygen Demand (COD) and Phosphorus. The concentration of Chemical Oxygen Demand (COD) was 67 mg/L at point one and 60 mg/L at point two in the upstream section of Way Batanghari Tributary located in Sumber Sari Village, South Metro District, Metro City, resulting in a water quality status with the Chemical Oxygen Demand (COD) parameter being in Class III, while in the downstream section of Way Batanghari Tributary located in Banjarrejo Village, Batanghari District, East Lampung Regency, with the concentration of Chemical Oxygen Demand (COD) being 36 mg/L at point one, 81 mg/L at point two, and 61 mg/L at point three, resulting in a water quality status with the Chemical Oxygen Demand (COD) parameter being in Class III. The concentration of Phosphorus using the EPA 200.7 test method revision 5, 2001, showed that the water quality status with the phosphorus parameter in the upstream section (Sumber Sari Village, South Metro District, Metro City) is in Class II, while in the downstream section (Banjarrejo Village, Batanghari District, East Lampung Regency) it is in Class II. The water quality status affects the presence of phytoplankton and zooplankton microorganisms in the Way Batanghari Tributary. The number of Phytoplankton in the upstream section is 39 with 12 species, while in the downstream section it is 18 with 11 species. The number of Zooplankton in the upstream section is 40 with 8 species, and in the downstream section it is 5 with 2 species. With the knowledge of the river water quality status, it is hoped that the community, especially those in Sumber Sari Village, South Metro District, Metro City, and Banjarrejo Village, Batanghari District, East Lampung Regency, can use water according to its purpose, namely to support agricultural and livestock water needs.Key Words: Chemical Oxygen Demand (COD); phosphorus; Phytoplankton; Zooplankton.

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