Penelitian ini dilakukan di Laboratorium Hatchery dan Teknologi Budidaya Program Studi Budidaya Perairan Fakultas Pertanian Universitas Malikussaleh, dimulai pada bulan Desember 2015 sampai dengan Januari 2016. Ikan uji yang digunakan adalah ikan mas koki yang berukuran 3-4 cm. Tujuan penelitian ini adalah untuk mengetahui pengaruh bahan filter dari ijuk, jerami padi dan ampas tebu sebagai filter air pada pemeliharaan ikan mas koki. Penelitian ini menggunakan metode eksperimental dengan Rancangan Acak Lengkap (RAL) non faktorial dengan empat perlakuan dan tiga kali ulangan. Pertambahan panjang terbesar terdapat pada bahan filter ijuk yaitu 1,14 cm. Pertambahan berat terbesar terdapat pada bahan filter ijuk yaitu 1,29 gram dan terkecil pada perlakuan kontrol yaitu 0,42 gram. Nilai kisaran parameter kualitas air pada saat penelitian yaitu suhu berkisar 25,7-29,7 oC, pH berkisar 7,1-7,6, DO berkisar 3,6-5,8 mg/L, kekeruhan berkisar 1,14-22,15 dan amonia berkisar 0,022-2,056.This research was conducted at the Laboratory of Aquaculture Hatchery and Technology Studies Program Aquaculture Faculty of Agriculture, University of Malikussaleh, started in December 2015 and January 2016. The fish samples used is a goldfish measuring 3-4 cm. The purpose of this study was to determine the effect of filter material from fibers, rice straw and bagasse as a water filter on the maintenance of a goldfish. This research used experimental method with a completely randomized design (CRD) non factorial with four treatments and three replications. Added greatest long fibers present in the filter material is 1.14 cm. The weight gain fibers contained in the filter material is 1.29 grams and the smallest in the control treatment that is 0.42 grams. Value range of water quality parameters at the time of the study ranged from 25.7 to 29.7 ° C as temperature, pH ranges from 7.1 to 7.6, DO ranged from 3.6 to 5.8 mg / L, turbidity ranges from 1.14 to 22 , 15 and ammonia ranged from 0.022 to 2.056.
This study aimed to know the effect of surfactant on growth, survival rate and gill histology of tilapia fingerling. It carried out on October to November 2014 at Hatchery and Aquaculture Technology Laboratory, Aquaculture Department Agriculture Faculty Malikussaleh University North Aceh. Experimented fish was given different concentrations of detergent. The treatments were A: control, B (detergent 3%), C (detergent 6%), and D (detergent 9%). Sampling data was done every seven days. Experimental design used was Completely Randomized Design with four treatments and three replications then it was continued by BNT test. Observed parameters were growth rate, survival rate, gill histology, feed efficiency, and water quality (temperature and pH). The result showed that different concentrations of detergent (3%, 6%, 9%) affected on growth and survival rate of tilapia fish. Control gave the best growth rate and feed efficiency which were 2,84 grams and 97,36%. While the highest survival rate was obtained in treatment of detergent 3% which was 100%. The water quality parameters during experiment were temperature ranged 26,6-28,1 ᵒ C and pH ranged 7,1-7,8.
Laut Tawar Lake is located in Aceh Tengah District is the largest lake in Aceh Province. The lake, located at an altitude of 1230 meters above sea level, produces about 13 species of freshwater fish. Fish depik (Rasbora tawarensis), eyas (Rasbora sp.), and relo (Rasbora sp.) are endemic species of Laut Tawar Lake. This study aims to estimate the potential of fish production based on the value of morphoedaphic index. The observation was conducted for one year, from October 2016 until September 2017. The measurement of electric conductivity value of lake waters was conducted on 7 (seven) stations selected purposively in the lake area about 5870 hectares. The results showed that morphoedaphic index value of Laut Tawar Lake ranged from 5.10 to 7.84 with an average of 6.14. Potential of fish production in the lake is 33.47 kg/ha/yr with total potential of fish production of 196.49 ton/yr. The value shows a decrease of 10.93 kg/ha/yr over a period of 22 years. This decrease is caused by changes in morphometry parameters and water quality of Laut Tawar Lake.
PendahuluanIkan koi merupakan ikan hias favorit dan banyak digemari oleh masyarakat luas di Indonesia. Ikan koi sampai saat ini masih menjadi salah satu komoditas bernilai tinggi dalam bidang perikanan. Apabila dipelihara dalam skala besar dapat digunakan sebagai mata pencaharian sekaligus dapat menciptakan lapangan pekerjaan baru. Ikan koi juga dapat dipelihara di dalam akuarium sebagai penyaluran hobi dengan mengamati keindahan geraknya.Pengembangan industri akuakultur untuk meningkatkan produksi dibatasi oleh beberapa faktor yaitu keterbatasan air, lahan dan polusi terhadap lingkungan. Air sebagai media pemeliharan ikan harus selalu diperhatikan kualitasnya.Intensifikasi budidaya melalui padat tebar dan laju pemberian pakan yang tinggi dapat menimbulkan masalah kualitas air. Walaupun ikan memakan sebagian besar pakan yang diberikan tetapi persentase terbesar diekskresikan menjadi buangan metabolik (nitrogen). Usaha yang dapat dilakukan untuk menanggulangi permasalahan di atas adalah mengaplikasikan sistem resirkulasi akuakultur. Sistem resirkulasi pada prinsipnya adalah penggunaan kembali air yang telah dikeluarkan dari kegiatan budidaya. Fokus utama pada sistem resirkulasi adalah pemindahan amonia sebagai zat hasil proses metabolisme ikan. Sistem resirkulasi dapat dilakukan dengan menggunakan media filter yang berbeda berupa arang, kijing dan tumbuhan paku.Penelitian ini memiliki tujuan untuk mengetahui pengaruh media filter pada sistem resirkulasi air terhadap pertumbuhan, konversi pakan dan kelangsungan hidup ikan koi dan mengetahui media filter mana yang terbaik pada sistem resirkulasi air untuk pertumbuhan ikan koi. Diharapkan hasil penelitian ini dapat menjadi informasi yang dapat digunakan sebagai referensi dalam penelitian ikan koi. Acta Aquatica Aquatic Sciences Journal AbstrakPenelitian ini dilakukan di Laboratorium Hatchery dan Teknologi Budidaya Program Studi Budidaya Perairan Fakultas Pertanian Universitas Malikussaleh, dimulai dari tanggal 10 Juni sampai dengan 9 Juni 2015. Ikan uji yang digunakan adalah benih ikan Koi yang berukuran 5 -7 cm. Tujuan penelitian ini adalah untuk mengetahu pengaruh media filter pada sistem resirkulasi air terhadap pemeliharaan ikan koi. Penelitian ini menggunakan metode eksperimental dengan Rancangan Acak Lengkap (RAL) non factorial dengan empat perlakuan dan tiga kali ulangan. Pertambahan panjang terbesar terdapat pada filter arang yaitu 0,47 cm dan terkecil pada filter kijing yaitu 0,36 cm. Pertambahan berat terbesar terdapat pada filter kontrol yaitu 1,21 gram dan terkecil pada filter kijing yaitu 1 gram. Hasil penelitian menunjukkan bahwa media filter pada sistem resirkulasi air tidak berbeda nyata terhadap pertumbuhan, konversi pakan dan kelangsungan hidup ikan koi. Kata kunci: Koi; Filter; Resirkulasi AbstractThis study was carried out at Hatchery and Aquaculture Technology Laboratory, Aquaculture Department Agriculture Faculty Malikussaleh University started on June 10th to July 9th 2015. Experimented fish was goldfish fingerling which had length 5-7 cm.The ...
The trophic status of Laut Tawar Lake was increasingly leading to an alarming level of degradation. Efforts to anticipate an increase in trophic status require scientific knowledge of the trophic phenomena of the waters empirically. This research examines the trophic status parameters to produce a model of the trophic status of Laut Tawar Lake. The proposed model was a modification of Carlson's Trophic State Index Method. Analysis of the relationship examined the interaction of water clarity (SD) with chlorophyll-a (Chl), Total Suspended Solid, and Total Dissolved Solids, and the interaction of chlorophyll-a with nutrient concentration (TP, TN). Data were analyzed descriptively quantitatively, correlation, and regression. The results showed that the waters of Laut Tawar Lake contain phosphate (TP) 34 µg/L, Total Nitrogen 687 µg/L, chlorophyll-a 10 µg/L, Total Suspended Solid 47 mg/L, Total Dissolved Solid 84 mg/L, and water clarity 4.0 m. The regression test showed that the abundance of phytoplankton (Chl) was affected by nutrient phosphate with the empirical model equation Chl = 0.565 TP – 9.161. Nitrogen nutrients did not partially affect the concentration of chlorophyll-a in the waters of Laut Tawar Lake. Water clarity is influenced by chlorophyll-a and TSS, where TDS has no effect partially. The empirical model obtained is Ln SD = 1.757 – 0.013 Chl – 0.008 TSS. Modification of Carlson's TSI by substituting the two equations obtained the equation TSIdlt = 13.46 + 8.08 ln TP + 0.04 TP + 0.04 TSS. This model simulation gives an estimation rate of 91.06%.
Floating net cage activities can cause water quality to decrease. The feed remains and the metabolism of the fish from these activities produces nitrogen and phosphorus . The objective of this study is to obtain the calculation model and the amount of phosphorus released into the waters of Laut Tawar Lake as a result of floating cage activities. The resulting formula was Pw = (F x [P]p) – ((It – Io) x [P]i), where their variables were given feed (F), phosphorus concentration of feed ([P]p), the final weight of fish (It), the initial weight of fish (Io), and phosphorus concentration in fishes ([P]i). It can be used to predict the increase in phosphorus waste based on the increase in floating net cage area. The weight of tilapia increases exponentially with the day of cultivation in the equation Y = 12.70e0.02x and the goldfish followed the formula Y = 2.28e0.03x. Phosphorus in tilapia varies from 1.58% to 2.23% with an average of 1.97%. Goldfish contain 1.19 - 2.02% phosphorus, with an average of 1.52%. Goldfish growth was not optimal due to inadequate feeding, so without excessive feeding and did not generate phosphorus waste. The cultivation of tilapia releases 0.09 Kg P/m2 of phosphorus waste from floating cages .
Penggunaan sumber kalsium sintetik dengan ukuran partikel yang relatif besar di tambak diduga menyebabkan ketidaksempurnaan moulting pada budidaya udang vaname, Litopenaeus vannamei. Salah satu sumber yang berkelanjutan untuk memenuhi kebutuhan kalsium selama proses moulting adalah limbah cangkang dari biota perairan budidaya lainnya. Penelitian ini bertujuan untuk mengevaluasi penggunaan sumber kalsium dari cangkang moluska yang berbeda terhadap performa moulting dan pertumbuhan udang vaname. Penelitian dilaksanakan pada bulan Agustus-September 2021 bertempat di Laboratorium Hatchery dan Teknologi Budidaya Fakultas Pertanian, Universitas Malikussaleh. Penelitian menggunakan rancangan acak lengkap (RAL) non-faktorial dengan empat perlakuan tiga ulangan, yakni: A (penambahan tepung cangkang tiram 75 mg/L), B (penambahan tepung cangkang kepiting 75 mg/L), C (penambahan tepung cangkang remis 75 mg/L), dan D (kontrol), masing-masing tiga ulangan. Tahapan-tahapan dalam membuat tepung yaitu pencucian, penjemuran, penumbukan, pengayakan, dan pembuatan nannokalsium (furnace). Parameter yang diamati selama penelitian antara lain: jumlah individu moulting, kecepatan moulting, laju pertumbuhan harian, dan kandungan kalsium cangkang. Hasil penelitian menunjukkan bahwa perlakuan terbaik terdapat pada perlakuan A (penambahan tepung cangkang tiram 75 mg/L) menghasilkan jumlah individu moulting sebesar 77,50%; kecepatan moulting 2,00 hari; laju pertumbuhan harian 3,31%; dan tingkat sintasan 93,33%. Penelitian ini menghitung bahwa 1 ha tambak udang membutuhkan 6 kg tepung cangkang untuk mencukupi kebutuhan kalsium udang budidaya. Parameter kualitas air tambak yang diukur (suhu, pH, oksigen terlarut, salinitas, dan amonia) menunjukkan nilai optimal untuk pertumbuhan udang vaname. Penelitian ini menyimpulkan bahwa kalsium dari cangkang tiram paling baik dalam meningkatkan proses moulting udang vaname dan merekomendasikan penggunaannya sebagai alternatif sumber kalsium untuk menggantikan kalsium dari batu gamping.The use of synthetic calcium sources with relatively large particle sizes in brackishwater ponds is suspected of causing moulting imperfection in cultured Pacific white shrimp, Litopenaeus vannamei. One of the sustainable sources to supply calcium needs during the moulting process is the shell waste from other farmed aquatic biota. This study aimed to evaluate the use of calcium sources from different mollusk shells on the moulting and growth performance of Pacific white shrimp. The research was conducted between August-September 2021 at the Hatchery and Cultivation Technology Laboratory, Faculty of Agriculture, Malikussaleh University. The study used a non-factorial completely randomized design (CRD) with four treatments, namely: the addition of A (75 mg/L oyster shell flour), B (75 mg/L crab shell flour), C (75 mg mussel shell flour), and D (control, 0 mg/L of shell flour) in the rearing media with three replications. The shell flour was transformed into nano-calcium via different production stages. The parameters observed during the study included: number of moulting individuals, moulting rate, daily growth rate, and shell calcium content. The results showed that the best treatment was in treatment A (addition of oyster shell flour 75 mg/L) resulted in the number of moulting individuals of 77.50%; moulting rate of 2.00 days; daily growth rate of 3.31%; and a survival rate of 93.33%. This study calculated that 1 ha of shrimp pond required 6 kg of shell flour to sufficiently supply the calcium demand of cultured shrimp. The measured ponds’ water quality parameters (temperature, pH, dissolved oxygen, salinity, and ammonia) showed optimal values for the growth of Pacific white shrimp. This study concludes that calcium from oyster shell has the best in improving the moulting process of Pacific white shrimp and recommends its use as an alternative source of calcium to replace calcium from limestone.
Penelitian ini bertujuan untuk menguji toksisitas herbisida golongan asam phenoxy terhadap mortalitas udang vaname, dengan melakukan uji pendahuluan, uji persistensi, uji moertalitas dan kualitas air. Rancangan penelitian menggunakan metode regresi dan analisis probit dengan 6 perlakuan dan 3 ulangan yaitu A konsentrasi herbisida 0 ml/L, B konsentrasi herbisisda DMA-6, 0,025 ml/L air, C konsentrasi herbisisda DMA-6, 0,005 ml/L air, D konsentrasi herbisisda DMA-6, 0,075 ml/L air, E konsentrasi herbisisda DMA-6, 0,1 ml/L air dan F konsentrasi herbisisda DMA-6, 0,125 ml/L air. Pestisida tidak berpengaruh terhadap perubahan suhu, oksigen terlarut (DO), Salinitas dan pH . Gejala klinis akibat pemaparan Pestisida terhadap udang vanamei adalah gerakan yang tidak beraturan, cangkang terkelupas,berenang mendekati aerasi, hingga mengalami kematian. Nilai LC50 pada uji toksisitas herbisida yaitu LC50 24 jam 0,124mg/l, nilai LC50 48 jam yaitu 0,099 mg/l, nilai LC50 72 jam yaitu 0,073mg/l, dan nilai LC50 96 jam yaitu 0,026 mg/l.
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