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Pengaruh insektisida golongan organofosfat terhadap benih ikan nila gift (Oreochromis niloticus, Bleeker): analisis histologi hati dan insang Jamin, Jamin; Erlangga, Erlangga
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Aquatic Sciences Journal, Vol. 3: No. 2 (October, 2016)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v3i2.324

Abstract

Insektisida golongan organofosfat telah digunakan secara ekstensif dalam bidang pertanian untuk mengontrol hama dan meningkatkan hasil produksi pertanian guna memenuhi permintaan bahan pangan yang tinggi akibat pertumbuhan populasi penduduk yang cepat. Akan tetapi walaupun penggunaan pestisida golongan organofosfat secara nyata telah menigkatkan hasil produksi pertanian, penggunaannya yang tidak terkontrol dapat membahayakan berbagai organisme akuatik dan dapat mengakibatkan efek negatif jangka panjang terhadap lingkungan perairan. Penelitian ini bertujuan untuk mengevaluasi pengaruh berbagai konsentrasi golongan organofosfat (0,0002 ml/L, 0,0004 ml/L dan 0,0005 ml/L Parathion 25%) terhadap kelangsungan hidup dan histologi jaringan hati dan insang benih ikan nila GIFT (Oreochromis niloticus, Bleeker). Benih ikan nila yang telah terpapar dengan berbagai konsentrasi pestisida tersebut menunjukkan beberapa gejala klinis diantaranya: kesulitan respirasi, perubahan warna tubuh menjadi lebih hitam, warna mata dan insang terlihat pucat, kehilangan keseimbangan dan berenang tidak beraturan sebelum kematian. Penelitian ini menunjukkan bahwa dengan semakin tinggi konsentrasi pestisida yang diberikan mengakibatkan semakin rendahnya kelangsungan hidup benih ikan nila. Kelangsungan hidup benih ikan nila yang dipapar dengan konsentrasi pestisida tertinggi (0,0005 ml/L) adalah 6,67%. Selama penelitian ini berlangsung, kelangsungan hidup benih ikan nila yang digunakan sebagai kontrol negatif adalah 100%. Pengamatan histologi jaringan hati dan insang memperlihatkan beberapa kerusakan jaringan akibat paparan Parathion, diantaranya: hemoragi, vakuola, degenerasi sel, telangiaktasis, dan hiperplasia dan kongesti jaringan insang. Penelitian membuktikan bahwa pestisida organofosfat khususnya Parathion 25% memiliki efek negatif terhadap kelangsungan hidup dan mengakibatkan perubahan histologi jaringan hati dan insang benih ikan nila GIFT.Insecticides such as organophosphates, have been used extensively in agriculture to control pest and improve crop yield to meet the high demand for food needed by the fast growing population. However, even though the use of organophosphate pesticides has been substantially increased agriculture crops, indiscriminate use of this chemical substance may cause harmful effects on aquatic organisms and may contribute long-term effects in aquatic environment. The purpose of this current study was to evaluate the effects of commercial organophosphate pesticide (Parathion 25%) on the survival and histopathological changes of GIFT (Genetically Improved Farmed Tilapia) Nile tilapia (Oreochromis niloticus, Bleeker) juveniles following exposure to varying concentrations of the toxicant (0.0002 ml/L, 0.0004 ml/L and 0.0005 ml/L, respectively). Following exposure to this pesticide, exposed fish were observed to exhibit some clinical signs including respiratory distress (such as gasping in air), darkened body color, opaque eyes and pale gills. Loss of balance and erratic swimming prior to death were also observed. As the concentration of pesticide increased, the survival rate of exposed fish reduced. This study found that at the highest concentration given (0.0005 ml/L) resulted in 6.67% survival of exposed fish. In the contrary, none of negative control fish were died during the period of this experiment. The histological observation of liver and gill tissues of exposed fish showed a deleterious effect of Parathion ranged from hemorrhage, vacuolization, cell degeneration, telangiectasia, hyperplasia and congestion of gills. This study provides more evidence that organophosphate pesticide, particularly Parathion 25%, has negative side effects on the survival and causes histological changes in liver and gills tissues of GIFT Nile tilapia juveniles.
Pertumbuhan benih ikan gurami (Osphronemus gouramy) yang dipelihara pada media bersalinitas 3 ppt dengan paparan medan listrik yang berbeda Husna, Rahmatul; Adhar, Saiful; Erlangga, Erlangga
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Aquatic Sciences Journal, Vol. 2: No. 1 (April, 2015)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v2i1.350

Abstract

Penelitian ini bertujuan untuk mengetahui pertumbuhan benih ikan gurami yang dipelihara pada media bersalinitas dengan paparan medan listrik yang berbeda. Penelitian dilaksanakan pada bulan September hingga Oktober 2014 di Laboratorium Hatchery dan Teknologi Program Studi Budidaya Perairan Fakultas Pertanian Universitas Malikussaleh Aceh Utara. Perlakuan yang diberikan yaitu: perlakuan A (Kontrol), B (7,5 Volt), C (10 Volt) dan D (12,5 Volt). Pengambilan data dilakukan setiap 7 hari sekali. Adapun rancangan yang digunakan pada penelitian ini adalah Rancangan Acak Lengkap (RAL) dengan 4 perlakuan 3 ulangan dan dilanjutkan dengan Uji Beda Nyata jika terdapat perbedaan. Parameter yang diamati adalah pertambahan bobot, pertambahan panjang, kelangsungan hidup dan efisiensi pakan. Hasil penelitian menunjukkan bahwa ikan gurami yang diberi perlakuan 7,5 volt, 10 volt dan 12,5 volt mampu merespon medan listrik. Pemberian medan listrik 10 volt menghasilkan nilai pertambahan bobot, pertambahan panjang dan efisiensi paling baik, yaitu masing-masing sebesar 0,31 gram, 0,20 cm, 90,61 %, sedangkan untuk kelangsungan hidup menunjukkan hasil yang terbaik pada perlakuan kontrol yaitu 90 %. Selama penelitian ini suhu bekisar antara 26,62-27,81 áµ’C, dan pH 7,40-6,62.This research aimed to know the growth of cultivated gouramy fingerling in saline media with different electric voltage treatments. The study was carried out on September until Oktober 2014 at laboratorium of hatchery, major of aquaculture Malikussaleh University. The given treatments were A (control), B (7,5 volt), C (10 volt), and D 12,5 volt). Data were sample every 7 days. The research design used was completely randomized design non factorial with 4 treatment and 3 replications then it was continued by LSD test. Some parameters taken during experiment were growth of weight and length, survival rate, feed efficiency. The result showed that gouramy fish given treatments of 7,5 volt, 10 volt, and 12,5 volt could respond the electric voltages. Electric voltage of 10 volt yielded the best of growth and feed efficiency, in which they were weight 0,31 gr, length 0,20 cm, and feed efficiency 90,61 %. White the best survival rate was obtained at control treatment which was 90 %. Water quality during experiment ranged temperature 26,62-27,81 0C and pH 7,40-6,62. 
Pengaruh lama waktu paparan medan listrik terhadap pertumbuhan benih ikan patin (Pangasius sp) Sahputra, Julianda; Adhar, Saiful; Erlangga, Erlangga
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Aquatic Sciences Journal, Vol. 2: No. 1 (April, 2015)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v2i1.352

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh waktu paparan medan listrik pada media air bersalinitas 3 ppt. Penelitian dilaksanakan pada bulan Oktober hingga November 2014 di Laboratorium Hatchery dan Teknologi Program Studi Budidaya Perairan Fakultas Pertanian Universitas Malikussaleh Aceh Utara. Perlakuan yang diberikan yaitu: perlakuan A (Kontrol), B (1 menit), C (3 menit) dan D (5 menit). Pengambilan data dilakukan setiap 7 hari sekali. Rancangan yang digunakan berupa Rancangan Acak Lengkap (RAL) dengan 4 perlakuan 3 ulangan dan dilanjutkan dengan Uji Beda Nyata jika terdapat perbedaan. Parameter yang diamati berupa pertambahan bobot, pertambahan panjang, kelangsungan hidup, dan efisiensi pakan. Hasil penelitian menunjukkan bahwa ikan patin yang diberi perlakuan 1 menit, 3 menit dan 5 menit mampu merespon medan listrik. Pemberian medan listrik 10 volt selama 3 menit menghasilkan nilai pertambahan bobot, pertambahan panjang, dan efisiensi pakan yang paling baik, yaitu masing-masing sebesar 0,65 gram/ekor, 0,29 cm/ekor, dan 91,09 %. Kelangsungan hidup ikan uji selama penelitian berkisar antara 83,33 % - 100 %, dimana yang terbaik diperoleh pada pemberian paparan listrik selama 3 menit. Selama penelitian ini suhu air yang diperoleh berkisar antara 26,60C sampai 29,30C, dan pH  berkisar antara 6,8 sampai 8,5. This study was aimed to know the expoture time effect of electric voltage in saline water 3 ppt. The study was carried out on October until November 2014 at Laboratorium of Hetchery, Major of Aquaculture Malikussaleh University. Several  treatments given in this study were A (Control), B (1 Minute), C (3 Minute), D (5 Minute). Data were sampled every 7 day. Reseach design used was completely ran domized design with four treadments and three replications, then it was continued by using LSD test. Parameters observed in this study were weight inerement, length inerement, survival rate, and feed efficiency. Result of this research showed that catfish which were given treadments of 1 minute, 3 minute, and 5 minute could respond electric voltage. Giving voltage 10 volt for 3 minute yielded the best values of weight and length increment and feed efficiency, such as 0,65 gr / fish of weight, 0,29 cm / fish of lenght, and survival rate 91,09 %. Water quality during experiment ranged temperature 26,60C - 29,30C and pH 6,8 - 8,5.
Fortifikasi probiotik dalam pakan untuk meningkatkan pertumbuhan ikan gurami (Osphronemus gouramy) Ezraneti, Riri; Erlangga, Erlangga; Marzuki, Erliza
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Aquatic Sciences Journal, Vol. 5: No. 2 (October, 2018)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v5i2.812

Abstract

AbstrakIkan gurami (Osphronemus gouramy) merupakan komoditas ikan air tawar yang bernilai ekonomis penting tetapi mempunyai kendala dalam budidaya, salahsatunya pertumbuhannya lambat. Salah satu pemecahan masalahnya adalah dengan pemenfaatan probiotik pada pakan. Penelitian ini bertujuan untuk mengetahui pengaruh fortifikasi probiotik dalam pakan dan untuk mengetahui penggunaan jenis probiotik terbaik dalam pakan untuk meningkatkan pertumbuhan ikan gurami (O. gouramy). Penelitian ini menggunakan metode eksperimen skala laboratorium dengan memberikan probiotik dalam pakan menggunakan rancangan acak lengkap (RAL) non faktorial dengan empat perlakuan dan tiga kali ulangan. Hasil penelitian dengan penyemprotan probiotik yang berbeda dengan dosis yang sama menunjukkan pengaruh yang sangat nyata terhadap pertumbuhan bobot, pegaruh nyata terhadap pertumbuhan panjang dan tidak menunjukkan pengaruh yang nyata terhadap kelangsungan hidup dan konversi pakan. Perlakuan terbaik terdapat pada perlakuan D dengan penyemprotan probiotik yang mengandung bakteri Saccharomyces cerevisiae, Lactobacillus acidophilus, Bacillus subtilis, Aspergilus oryzae, Rhodopseudomonas, Actinomycetes dan Nitrobacter per 100 gram pakan dengan laju pertambahan bobot 34,26 %, laju pertambahan panjang 30,95 %, kelangsungan hidup 76,67 % dan konversi pakan 5,35 g.Kata kunci: gurami; probiotik; pertumbuhanAbstractGouramy (Osphronemus gouramy) is a commodity of freshwater fish which is economically important, but it has many problems in their culture, for example is slow growth. One of problem solving is utilization of probiotics in feed. This research aims to know influence of probiotic fortification in feed and to determine the best kind of probiotic that used in feed to increase the growth of gouramy (O. gouramy). This research used laboratory experimental method with feeding probiotics in feed, used non-factorial complete randomized design (CRD) design with four treatments and three replications. Results of research with different probiotic with similar doses showed significant effect on weight, real influence on long and did not show significant effect on survival and feed conversion. The best treatment was found in D treatment with probiotic which contains Saccharomyces cerevisiae bacteria, Lactobacillus acidophilus, Bacillus subtilis, Aspergilus oryzae, Rhodopseudomonas, Actinomycetes and Nitrobacter per 100 gram of feed with weight rate 34,26%, long rate 30,95%, survival rate 76.67% and feed conversion 5.35 g.Keywords: gourami; probiotic; growth
Pengaruh warna wadah terhadap pertumbuhan dan kelangsungan hidup ikan badut (Amphiprion ocellaris) Zulfikar, Zulfikar; Erlangga, Erlangga; Fitri, Zakiatul
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Aquatic Sciences Journal, Vol. 5: No. 2 (October, 2018)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v5i2.847

Abstract

AbstrakIkan badut merupakan ikan hias air laut yang mempunyai nilai ekonomis tinggi. Penelitian ini dilaksanakan pada bulan September 2017 di Laboratorium Hatchery Pembenihan Program Studi Budidaya Perairan Fakultas Pertanian Universitas Malikussaleh. Tujuan dari penelitian ini adalah untuk mengetahui warna wadah yang terbaik untuk percepatan pertumbuhan dan kelangsungan hidup benih ikan badut. Metode yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap non faktorial (RAL) dengan empat perlakuan dan tiga kali ulangan dengan wadah warna biru, hijau, merah, dan kuning. Parameter yang diamati dalam penelitian ini adalah pertumbuhan panjang dan bobot ikan, kelangsungan hidup, dan kualitas air. Hasil penelitian menunjukkan penggunaan warna wadah biru memberi pengaruh yang sangat nyata terhadap pertambahan panjang dan kelangsungan hidup ikan badut. Sedangkan pertambahan bobot berbeda nyata. Adapun angka pertambahan panjang, bobot, dan presentase SR terbaik terdapat pada perlakuan A (biru) yaitu 0,19 cm, 0,08 gram dengan presentase kelangsungan hidup 95% ikan badut. Parameter kualitas air yang diukur selama penelitian sesuai dengan kehidupan ikan badut dengan kisaran Suhu 26-290C, Salinitas 30-34 ppt, pH 7-8, and DO 4-7 (mg/L).Kata kunci: ikan badut; kelangsungan hidup; pertumbuhan; warnaAbstractClown fish is a marine ornamental fish that has high economic value. This research was conducted in September 2017 at Hatchery Laboratory Aquaculture, Faculty of Agriculture, University of Malikussaleh. The purpose of this research to determine the color container for growth and survival rate of clown fish. The method used was Completely Randomized Design (CRD). With 4 treatments and 3 replications with blue, green, red, and yellow containers. The parameters observed in this research were length growth and weight of fish, survival, and water quality. The results showed that the use of blue container color was very significantly affect on the length and survival of clown fish. While weight gain significantly different. The rate of increase length, weight, and survival rate percentage best found in treatment A (blue) 0.19 cm, 0.08 grams with survival rate percentage 95%. Water quality parameters during the research were in accordance with clown fish life with temperature range 26-29 0C, Salinity 30-34 ppt, pH 7-8, and DO 4-7 (mg/L).Keywords: clown fish; survival rate; growth; color
Pengaruh perbedaan sistem resirkulasi dan sistem konvensional terhadap pertumbuhan dan sintasan benih kuda laut (Hippocampus comes) Erlangga, Erlangga; Zulfikar, Zulfikar; Akbar, Syawaluddin
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Aquatic Sciences Journal, Vol. 6: No. 2 (October, 2019)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v6i2.1637

Abstract

AbstrakTujuan penelitian ini adalah untuk mengetahui pengaruh penggunaan sistem resirkulasi dan sistem konvensional terhadap pertumbuhan dan sintasan benih kuda laut (Hippocampus comes). Manfaat penelitian ini yaitu untuk mengetahui perbedaan sistem resirkulasi dan sistem konvensional terhadap pertumbuhan benih kuda laut (Hippocampus comes). Metode yang digunakan dalam penelitian ini adalah metode eksperimen dengan menggunakan dua jenis perlakuan yang berbeda dengan 2 perlakuan 3 ulangan. Adapun Perlakuan yang digunakan adalah sebagai berikut :Perlakuan A = Benih kuda laut dipelihara pada sistem resirkulasi Perlakuan B = Benih kuda laut dipelihara pada sistem konvensional. Hasil penelitian menunjukkan bahwa pemeliharaan kuda laut dengan mengguanakan sistem konvesional daan sistem resirkulasi terdapat pertambahan bobot dan pertambahan panjang serta kelangsungan hidup yang normal atau sesuai. Pada pertumbuhan bobot sistem resirkulasi dengan berat 0,07 gr dan panjang 0,63 cm serta kelangsungan hidup 100%. Sedangkan pada sistem konvesional pertambahan bobot 0,05 gr dan pertambahan panjang 0, 58 cm serta kelangsungan hidup 60%. Nilai kualitas air masih berada pada kadar optimum dengan suhu berkisar antara 26-27 0C, pH berkisar antara 7,52-7,57 DO berkisar antara 6,04-6,16 ppm dan amoniak berkisar antara 0,121-0,262 ppm , nitrit 0,104-0,158 ppm.Kata kunci: kuda laut; system resirkulasi; system konvensional; kelangsungan hidupAbstractThe purpose of this study was to determine the effect of using conventional and recirculation systems on growth and survival rate of seahorse fingerling (Hippocampus comes). The benefits of this research are to find out the differences in recirculation systems and conventional systems for the growth of seahorse seeds (Hippocampus comes). The method used in this study is the experimental method using two different types of treatment with two treatments three replications. The procedures used are as follows: Treatment A = Seahorse seeds are maintained in the recirculation system Treatment B = Seahorse seeds are maintained in conventional systems. The results showed that the maintenance of seahorses by using conventional methods and recirculation systems had weight gain and normal or appropriate increase in length and survival. In the growth of the recirculation system weights 0.07 gr and 0.63 cm long and 100% survival. Whereas in conventional systems the weight gain is 0.05 g and the increase in length is 0, 58 cm and survival is 60%. The value of water quality is still at optimum levels with temperatures ranging from 26-27 0C, pH ranges from 7.52-7.57 DO ranging from 6.04 to 6.16 ppm and ammonia ranges from 0.121-0.262 ppm, nitrite 0.104- 0.158 ppm.Keywords: seahorses; recirculation system; conventional system; survival rate
Increased density of Thalassiosira sp with different doses of silicate fertilizer Erlangga, Erlangga; Andira, Ayu; erniati, erniati; mahdaliana, mahdaliana; muliani, muliani
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 8: No. 3 (December, 2021)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v8i3.4685

Abstract

The research was conducted in 11-25 July 2020 at Water Quality and Fish Nutrition Laboratory, Faculty of Agriculture, University of Malikussaleh. The research design used was Completely Randomized Design (CRD) non factorial with 4 treatments and 3 replications. With treatment A: culture of Thalassiosira sp with 15 ppm silicate fertilizer, treatment B: culture of Thalassiosira sp with 17 ppm silicate fertilizer, treatment C: culture of Thalassiosira sp with 19 ppm silicate fertilizer, treatment D: culture of Thalassiosira sp with 21 ppm silicate fertilizer. The result showed that the effect of silicate fertilizer with different dosage gave a different significant to cells Thalassiosira sp density and significantly different to cells Thalassiosira sp peak populasion. The highest average cell density value was found in treatment A (15 ppm) of 419,10 x 104 cells/ml, then treatment B (17 ppm) of 256,67 x 104 cells/ml, followed by treatment C (19 ppm) of 216,29 x 104 cells/ml and treatment D (21 ppm) of 102,90 x 104 cells/ml. The highest cell populasion peak is found in treatment A (15 ppm) of 689,67 x 104 cells/ml, then treatment B (17 ppm) of 389,33 x 104 cells/ml, followed by treatment C (19 ppm) of 388 x 104 cells/ml and treatment D (21 ppm) of 156 x 104 cells/ml. the water quality of the study in standard condision is pH 6,9-8, salinity 32 ppt, light intensity 800-2500 lux, and temperature 25-290C.Keywords: Density; Thalassiosira; silicate
Penetasan telur penyu sisik (Eretmochelys imbricata) dengan kedalaman yang berbeda Erlangga, Erlangga; Lestari, Ayu; Zulfikar, Zulfikar; Khalil, Munawar; Ezraneti, Riri
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 8: No. 2 (August, 2021)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v8i2.4778

Abstract

This research was conducted from November 2018 until January 2019 which was held at the UPTD Conservation and Supervision of Marine Resources and Fisheries in West Sumatera, Pariaman City.  The aim of the research is to know hatchling hawksbill sea turtle eggs based on nest depth. The method used in this study is a nonfactorial randomized block design (RBD) consisting of 3 treatments and 3 replications. The treatments used were treatment A (with a depth of 30 cm incubation nest), treatment B (with a depth of incubation nest 40 cm), and Treatment C (with a depth of incubation nest 50 cm). The results of this study showed that hatching hawksbill eggs hatched very significantly, the best hatching percentage was in treatment A (30cm) with 78% hatching at 6:00 a.m. with hatching temperature range of 24-28oC, hatching pH of 6,6-6,8 and medium sized incubation sand with a size of 0.150 mm with a weight reaching 461 grams.Keywords: Hatching percentage, Hawksbill turtle, pH, Temperature
Cultivation of microalgae Nannochloropsis sp in chicken manure to increase biomass and lipids as an introduction to biodiesel production Ayuzar, Eva; Mahdaliana, Mahdaliana; Khaidir, Khaidir; Fitria, Ade; Erlangga, Erlangga
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 9: No. 2 (August, 2022)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v9i2.6721

Abstract

Microalgae is one of the natural resources that has the potential to make biodiesel because it contains a fairly high amount of oil. The content of fat (lipid) and fatty acid (fatty acid) in microalgae is a source of energy and is used as raw material for biodiesel. In lipids there are elements of saturated fatty acids that play a role in the process of making biodiesel. The addition of growth nutrients into microalgae culture media is considered the most influential aspect on the quantity of biomass produced by microalgae cultivation. This study aims to determine the effect of chicken manure on the growth rate of Nannochloropsis sp. and to get the best treatment the lipid content of Nannochloropsis sp. of dry weight. The method used in this study was to use a non-factorial Complete RandomIzed Design (RAL) with 3 repeat treatments. The treatments in this study were A: 0 mg/L, B: 250 mg/L, C: 300 mg/L, D: 350 mgL. The results showed that the effect of giving chicken manure with different doses had a very real effect on the density of Nannochloropsis sp, and population peaks. Treatment B with a dose of 250 mg/L of showed the best results with an average density value of 4713 x 104 cells/ml and a population peak of 9415 x 104 cells/ml and the highest lipid levels found in treatment B, which is 12.73.  Water quality during the study was conditioned standard. Temperature 26 - 27 oC, pH 7.1 - 7.7, DO 5.2 - 6.3 and salinity 31 - 34 ppt. Based on the results of the study found that lipid results are high, so it is possible to try biodiesel testing.Keywords: Biodesel; Biomass; Lipid; Microalgae; Nannochloropsis  sp
Toxicity test of LC-50 (Lethal Concentration) surfactant LAS (Linear Alkylbenzene Sulfonate) against white snapper (Lates calcarifer) fingerlings on a laboratory scale Daulay, Anggi Mayulina; Erniati, Erniati; ˜Akla, Cut Meurah Nurul; Erlangga, Erlangga; Imamshadiqin, Imamshadiqin
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 9: No. 3 (December, 2022)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v9i3.6780

Abstract

LAS (Linear Alkylbenzene Sulfonate) surfactants are the main cleaning agents from the anionic group found in detergents that are widely used in Indonesia. LAS decomposes in surface water for 1-2 days, in sediments it decomposes for 1-3 days, in marine and estuarine systems it decomposes for 5-10 days. LAS is generally degraded by as much as 90% within 3 months, with a time ranging from 5-30 days (World Health Organization, 1996). LAS surfactants can cause damage to the gill epithelium and blockage of branchiola channels in fish. This study aims to determine the toxic effect of LAS surfactant on the survival of white snapper (Lates calcarifer) fry and to determine the toxicity value of LC50 (Lethal Concentration) of LAS surfactant to white snapper (Lates calcarifer) fry on a laboratory scale. This research was carried out on September 21 - October 04, 2021 at the Marine Science Laboratory, Faculty of Agriculture, Malikussaleh University using laboratory experimental methods with 5 treatments, namely: control treatment A (0 ppm), B (0.83 ppm), C (1.58 ppm). ), D (2.16 ppm), and E (2.91 ppm). The results of this study cause barramundi to experience irregular movements, mouth opening and operculum tend to be fast and irregular, scales are pale and peeling, and cause death, LAS surfactants affect water quality such as pH and dissolved oxygen, but have no effect on salinity and temperature. The 24-hour LC50 value is 1.95 ppm, the 48-hour LC50 value is 1.86 ppm, the 72-hour LC50 value is 1.70 ppm, and the 96-hour LC50 value is 1.58 ppm.Key words: LAS surfactant; LC50; toxicity; white snapper
Co-Authors Adam Sekti Aji Ade Nurdin Akbar, Syawaluddin Ali Alam, Iskandar Alya Nurfaridah Andika, Yudho Anisa Anisa Annisa Wolio, Nurmiyati Anom Maruta Ari Kurniawan Saputra Ari, Ari Kurniawan Saputra Ariski, Firli Aryanti, Andini Setia Ashira, Nurul Ayu Andira AYU LESTARI Aziza, Widia Sahpa Nur Baehaqi Bahagia Bahagia Bambang Hartono Cut Meurah Nurul ‘Akla Daulay, Anggi Mayulina Deddy Kurniawan Wikanta Dila, Nuriana Dini, Nur Amruna Dwi Yulianti, Annisa Dwiyono, Yudo Eka Fitrajaya Rahman Endra , Robby Yuli Enjun Junaeti Erna Piantari Erniati Erniati Erwin Erwin Eva Ayuzar, Eva Fajar, Malik Fathimah, Nusuki Syari'ati Febrina Rolin Febriza, Delia Fenty Ariani Fitri, Zakiatul Fitria, Ade Fitriani Fitriani Gumilang, Muhamad Dzikri Gurusinga, Eliana Mahesa GYMNASTIAR, GAZALI Hadinata, Fitra Wira Haeran Handayani, Meutia Hariningsih, Hariningsih Harmes, Harmes Hayatun Nufus Haykal Ramadhan, Salman Hermawan Dwi A Hermawan, Nadira Arevia Hermawan, Raihan Cagiva HIKMAH, PADEL Himmah, Amirah Dzatul Husaen, Yusril Hutwan Syarifuddin Iklas Sanubary Imamshadiqin, Imamshadiqin Iman Syahrizal Imanullah, Imanullah Irmayunita, Irmayunita Jamin, Jamin Johannes Alexander Putra Judie, Rizky Rachman Julianda Sahputra, Julianda Khaidir Khaidir, Khaidir Khansa Rakha Dimas, Rocky Kurniawan, Ahmad Shaleh Kusnendar, Jajang Leni, Yusyam Likdanawati Lukman, A. Ismail Lukmanul Hakim Lusiana, Andria Mahdaliana, Mahdaliana Mainisa, Mainisa Mardiah, Nur Ainun Mariana Mariana Marzuki, Erliza Mataniari, Azhari Maulana, Asroful Maulida, Aulia Maullana Arifin, Muhammad Misrita, Misrita Mohamad Endy Y Muchammad Fauzi Muhammad Amin Muhammad Ardiansyah Muhammad Riza Abqari Muhammad Robi, Muhammad Muliani Muliani, Muliani Mulyati, Awin Munawar Khalil Munawwar Khalil, Munawwar Mutia Mutia, Mutia Mutmainnah Mutmainnah Muwardi, Haris Nella Tri Agustini, Nella Tri Ningsih, Irma Fahrizal Butsi Nuklirullah, M. Nurmayanti, Nurmayanti Pamanalu, Analdi Pengestu, Adam Yoga Piantari, Erna Prabawa, Harsa Wara Prama Hartami Prasetya, Yukis Angga Prasetyo, Repki Putri, Adinda Aulia Putro, Budi Laksono Rachmawati Rusydi, Rachmawati Rahman, Erwan Rahmatul Husna, Rahmatul Raka Ibnu Firdaus Ramadansyah, Syahrul Ramadhan, Azizi Rasim, Rasim Rika Anggraini Riri Ezraneti Risnita Tri Utami Ritonga, Gara Hasonangan Rizky, Lalu Muhamad Faisal Sabrawijaya Sabrawijaya Safiyah, Resalatus Saiful Adhar salamah salamah Salsabilla, Hanum Sam Hermansyah Sariasi, Puspita Setialestari, Renny Sigalingging, Kevin Noven Siregar, Herbert Siti Suharyatun Situmorang, Devi Permata Sari Srinanda Rizki, Srinanda Sundari, Ellys Mei Surbakti, Livia Chasinta Sutiana Sutiana, Sutiana SYAHRIAL SYAHRIAL Syamsiar, Syamsiar Taqwan Thamrin Tia Tanjung, Tia Triyana Wulandari Usman, Umaruddin Ute Chairuz M Nasution Wahyuni, Riri Wawan Gunawan Welmar Olfan Barat, Welmar Olfan Wihardi, Yaya willyansah, willyansah Winda Rahmawati Wiwin Susanty Yudistira, Andrian Zaitun, Urmila Zaki, Muhammad Radin