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Effect of Alkalinity on Survival Rate and Growth of Siam Patin Catfish (Pangasius sp.) fry Djokosetiyanto, D.; Dongoran, R.K.; Supriyono, E.
Jurnal Akuakultur Indonesia Vol. 4 No. 1 (2005): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

This study was conducted to examine the effect of alkalinity on survival and growth of Siam patin catfish (Pangasius sp.). Fish larvae were reared in aquaria in density of 4 fishes per liter. Water alkalinity examined was 15 ppm CaCO3 as control, and 25, 50, and 75 ppm CaCO3 as treatments. During first 7 days, larvae were fed on nauplii Artemia sp. 4 times daily and continuing fed on Tubifex sp. for 23 days. The results of study showed that higher survival rate was obtained in treatment 50 ppm CaCO3 (94.16%). Higher daily growth rate was also achieved by that treatment. Keywords: Siam patin catfish, Pangasius, Alkalinity, CaCO3 ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh alkalinitas terhadap kelangsungan hidup dan pertumbuhan larva ikan patin Siam (Pangasius sp.). Larva ikan patin dipelihara dalam akuarium dengan kepadatan 4 ekor/L. Alkalinitas air yang digunakan adalah 15 ppm CaCO3 sebagai kontrol, dan perlakuan 25, 50 serta 75 ppm CaCO3. Selama 7 hari pertama, pakan yang diberikan berupa naupli Artemia sp. setiap 4 jam sekali dan diteruskan dengan cacing sutera (Tubifex sp.) selama 23 hari. Hasil penelitian menunjukkan bahwa kelangsungan hidup larva tertinggi diperoleh pada perlakuan alkalinitas 50 ppm CaCO3 (94,16%). Laju pertumbuhan harian tertinggi juga diperoleh pada perlakuan alkalinitas 50 ppm CaCO3 (6,65%). Kata kunci: ikan patin Siam, Pangasius, Alkalinitas dan CaCO3

Effect of Linear Alkylbenzene Sulfonate on Mortality, Hatching Rate of Eggs and Abnormality of Catfish (Pangasius hypophthalmus Sauvage) Larvae Supriyono, E.; Lisnawati, L.; Djokosetiyanto, D.
Jurnal Akuakultur Indonesia Vol. 4 No. 1 (2005): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Linear alkylbenzene sulfonate (LAS) surfactant in the water can affecting fish in all developmental stages. This study was aimed to observe the effect of LAS on mortality, hatching rate of eggs, and abnormality of patin catfish (Pangasius hypophthalmus Sauvage) larvae. Fertilized eggs were incubated in water containing LAS at the dosages of 0.0, 0.5, 1.5, 3.0, 9.0, and 18.0 mg/L. Eggs mortality was observed every 6 hours until larvae hatched (24 hours). The results of study showed that the exposure of 18.0 mg LAS per liter water could put to death all the fertilized eggs and larvae be abnormal. The exposure of LAS at concentration of 9.0 mg/L could kill 98% of eggs and hatching rate was only 2%. The abnormality in larvae was bending in the body and tails. Keywords: patin catfish, Pangasius, Linear Alkylbenzene Sulfonate, LAS, abnormality ABSTRAK Surfaktan Linear Alkylbenzene Sulfonate (LAS) yang masuk ke dalam perairan sangat berpengaruh terhadap ikan dari stadia awal hidup ikan sampai dewasa. Penelitian ini bertujuan untuk mengetahui pengaruh LAS terhadap mortalitas, daya tetas telur dan abnormalitas larva ikan patin (Pangasius hypophthalmus Sauvage). Telur ikan patin yang telah dibuahi di rendam dalam air yang mengandung LAS dengan konsentrasi 0,0; 0,5; 1,5; 3,0; 9,0 dan 18,0 mg/L. Mortalitas telur dicatat setiap 6 jam sampai menetas (24 jam). Hasil penelitian menunjukkan bahwa konsentrasi LAS sebesar 18,0 mg/L dapat mengakibatkan mortalitas telur dan abnormalitas pada larva secara total. Konsentrasi LAS sebesar 9,0 mg/L dapat mematikan telur hingga 98% dan hanya menghasilkan daya tetas sebanyak 2%. Abnormalitas pada larva berupa pembengkokan pada tubuh dan ekor. Kata kunci: ikan patin, Pangasius, Linear Alkylbenzene Sulfonate, LAS dan abnormalitas

Toxicity Study of Trichlorfon Insecticide Towards Nile Tilapia Oreochromis sp. Supriyono, E.; Pong-Masak, P.R.; Naiborhu, P.E.
Jurnal Akuakultur Indonesia Vol. 4 No. 2 (2005): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

The study was conducted to study toxicity and accumulation levels of trichlorofon in Nile tilapia (Oreochromis sp.) in weight of 2.54±0.79 g. Experiment was diveded into three steps, i.e., (1) determination of toxicity range for 48 hours, (2) devinitive test for 96 hours, and (3) bioaccumulation test for 96 hours. Experiment was performed using aquaria (volume 10 liter) with semi-static system. Data was analyzed descriptively and probit test. The results of study indicated that Nile tilapia (8.33%) died after exposuring with trichlorofon 8 ppm for 24 hours, and all fish died when they were exposured with trichlorofon 50 ppm for 18 hours. LC50 value at 96 hours was 8.52 ppm, while safe concentration levels was 0.43 ppm. Accumulation rate of tricholorofon in the body Nile tilapia was 0.11% per day. Keywords: toxicity, trichlorfon, Nile tilapia, Oreochromis sp. ABSTRAK Penelitian dilakukan untuk mengetahui tingkat toksisitas dan akumulasi insektisida triklorfon pada ikan nila (Oreochromis sp.) dengan bobot 2,54±0,79 g. Percobaan dilakukan dalam tiga tahap, yaitu uji penentuan kisaran selama 48 jam, uji definitif selama 96 jam dan studi bioakumulasi selama 96 jam. Percobaan menggunakan akuarium kaca volume 10 liter dengan sistem semi statik. Data dianalisis secara deskriptif dan analisis probit. Hasil penelitian menunjukkan bahwa ikan nila mulai mati setelah diberikan triklorfon 8 ppm selama 24 jam, and semua ikan mati dengan pemberian triklorofon 50 ppm selama 18 jam. Nilai LC50 96 jam sebesar 8,52 ppm, sementara tingkat konsentrasi aman sebesar 0,43 ppm. Terjadi peningkatan konsentrasi residu dalam tubuh ikan nila dengan laju penyerapan harian 0,11%. Kata kunci: toksisitas, triklorfon, ikan nila, Oreochromis sp.

Production of ”Tokolan” White Shrimp Litopenaeus vannamei in the Cage with Different Rearing Density Supriyono, E.; Purwanto, E.; Utomo, N.B.P.
Jurnal Akuakultur Indonesia Vol. 5 No. 1 (2006): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Larva rearing is one of the efforts to increase white shrimp Litopenaeus vannamei seed quality. This study was conducted to determine effect of rearing density on the quality and productivity of white shrimp larvae in cage system. The tested rearing densities were 500, 1000, 1500 and 2000 ind/m2 and cultured for 28 days. The result showed that rearing density did not affect survival rate and coefficient of variation of shrimp length. The treatmentonly affected the shrimp larvae growthwhere 500 ind/m2 rearing density gave the best growth. Keywords: white shrimp, larva, rearing density, net cage ABSTRAK Penokolan merupakan salah satu usaha untuk meningkatkan kualitas benih udang vaname (Litopenaeus vannamei). Penelitian ini dilakukan untuk mengetahui pengaruh padat tebar terhadap kualitas dan produktivitas pemeliharaan larva udang vaname di hapa. Padat tebar yang diuji meliputi 500 ,1000, 1500 dan 2000 ekor/m2 selama 28 hari pemeliharaan. Hasil penelitian menunjukkan bahwa padat tebar tidak mempengaruhi kelangsungan hidup dan koefisien keragaman panjang udang, dan hanya mempengaruhi pertumbuhan. Kepadatan 500 ekor/m2 menghasilkan pertumbuhan terbaik. Kata kunci: vaname, larva, kepadatan, hapa

The Use of Zeolit and Activated Carbon on Packing System of Corydoras aenus Supriyono, E.; Supendi, E.; Nirmala, K.
Jurnal Akuakultur Indonesia Vol. 6 No. 2 (2007): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Problem frequently found by Indonesian exporter in sending ornamental fish including Corydoras aenus to overseas is the low survival rate that caused by decrease in water quality during transportation. Suitable and efficient packing technology is very needed to send live fish for long time transportation. Two third of packing plastic volume was filled by oxygen, and Corydoras aenus 20 fish/pack. Packing plastic was placed into styrofoam and ice was added to maintain at low temperature. Zeolit and activated carbon was cover up by cloth and then placed into the pack. Dosage treatment of zeolit and activated carbon was 20 gram zeolit, 15 gram zeolit and 5 gram activated carbon, 10 gram zeolit and 10 gram activated carbon, 5 gram zeolit and 15 gram activated carbon, 20 gram activated carbon, and no added zeolit and no activated carbon as control. Fish condition was observed every 6 hours, while water quality measurement was performed every 24 hours for 120 hours. The results of study showed that adding 20 gram zeolit without activated carbon in closed packing system of Corydoras aenus in 20oC could maintained in lower concentration of total nitrogen ammonia and unionized ammonia (NH3), reached of 7.83±0.13 mg/l and 0.046±0.003 mg/l, respectively. The level of total nitrogen ammonia and unionized ammonia were relatively lower compared to mix of zeolit and activated carbon, and only activated carbon. Survival rate of fish by this treatment was 100%, higher than other treatment (85-95%). Keywords: zeolit, activated carbon, packing, Corydoras ABSTRAK Permasalahan yang sering dihadapi oleh para eksportir Indonesia dalam pengiriman ikan hias termasuk Corydoras aenus ke luar negeri adalah rendahnya survival rate diantaranya disebabkan oleh kualitas air yang memburuk selama pengangkutan. Teknologi pengepakan yang tepat dan efisien sangat dibutuhkan dalam rangka pengiriman ikan hidup untuk tempat tujuan yang membutuhkan waktu lama. Kantong pengepakan diisi Corydoras aenus 20 ekor/kantong. Dua per tiga bagian kantong diisi oksigen. Kantong dimasukkan ke dalam styrofoam dan ditambahkan es batu untuk menjaga suhu tetap rendah. Zeolit dan karbon aktif dibungkus kain dan dimasukan ke dalam kantong. Perlakuan dosis zeolit dan karbon aktif adalah 20 gram zeolit, 15 gram zeolit dan 5 gram karbon aktif, 10 gram zeolit dan 10 gram karbon aktif, 5 gram zeolit dan 15 gram karbon aktif, 20 gram karbon aktif, dan tanpa zeolit dan tanpa karbon aktif sebagai kontrol. Pengamatan kondisi ikan dilakukan setiap 6 jam, sementara pengukuran kualitas air dilakukan setiap 24 jam hingga jam ke-120. Hasil penelitian menunjukkan bahwa pemberian 20 gram zeolit tanpa Carbon aktif pada pengepakan tertutup ikan Corydoras aenus dengan suhu sekitar 20oC mampu menekan kenaikan kadar total amonia nitrogen dan kadar amonia tak terionisasi (NH3) masing-masing mencapai tingkat 7,83±0,13 mg/l dan 0,046±0,003 mg/l. Konsentrasi tersebut relatif lebih rendah bila dibandingkan dengan penggunaan campuran zeolit dan arang aktif maupun arang aktif saja. Tingkat kelangsungan hidup yang dicapai oleh sistem pengepakan menggunakan 20 gram zeolit mencapai 100% yang juga lebih baik dibandingkan dengan perlakuan lain yang hanya mencapai 85-95%. Kata kunci: zeolit, karbon aktif, pengepakan, Corydoras

The effect of endosulfan bioaccumulation on the growth of carp, Cyprinus carpio LINN. Taufik, Imam; Supriyono, E.; Nirmala, K.
Jurnal Akuakultur Indonesia Vol. 8 No. 1 (2009): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

This research was done in order to determine the effect of endosulfan biaccumulation on the growth of carp (Cyprinus carpio). This research was conducted in 40 l of glass aquaria, the initial weight of carp was 0.81±0.098 g/fish, and the pesticide endosulfan with active ingredient of 350 g/l was used as test solution. Preliminary research was conducted with bioassay test to assess LC50-96h of endosulfan for carp, and then the fish were exposed to some series of exposure concentration, those are 10; 30; and 50% of LC50-96h value or 0.24; 0.72; and 1.2 mg/l for 12 weeks. Endosulfan residue analysis in the water and the body of the fish was conducted after: 0, 4, 12, 24, 48, 96, 144, 192, 264 of exposure hours by using liquid gas chromatography (LGC). Body weight of fish was measured weekly. This study resulted that endosulfan was very toxic to the carp with LC50-96h value was 2.42 (2.206-2.652) mg/l. Endosulfan bioaccumulation of exposure concentration of 0.24; 0.72; and 1.20 mg/l were 67.93; 119.21; and 141.19 mg/kg respectively. Bioaccumulation of 119,21mg/kg significantly inhibit the growth of carp. Keywords: endosulfan, bioaccumulation, growth, carp ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh biakumulasi insektisida endosulfan terhadap pertumbuhan ikan mas. Wadah penelitian berupa akuarium kaca, hewan uji adalah ikan mas berukuran 0,81±0,098 g/ekor, bahan uji berupa formulasi insektisida dengan bahan aktif endosulfan 350 g/l. penelitian diawali dengan uji hayati untuk menentukan nilai LC50-96 jam endosulfan terhadap ikan mas, selanjutnya dilakukan pemaparan ikan mas selama 12 minggu dalam air dengan konsentrasi endosulfan yang berbeda, yaitu: 10, 30, dan 50% dari nilai LC50-96 jam atau sebesar 0,24; 0,72; dan 1,20 mg/l. Analisis residu endosulfan dalam sample air dan ikan dilakukan setelah waktu pemaparan 0, 4, 12, 24, 48, 96, 144, 192, dan 264 jam dengan menggunakan kromatografi gas cair (GC), pengukuran bobot ikan dilakukan setiap minggu dengan menimbang berat total. Hasil penelitian menunjukkan bahwa insektisida endosulfan sangat toksik terhadap ikan mas dengan nilai LC50-96 jam sebesar 2,42 (2,206-2,652) mg/l, bioakumulasi endosulfan pada konsentrasi perlakuan 0,24; 0,72; dan 1,20 mg/l secara berturut-turut adalah 67.93; 119,21; and 141,19 mg/kg. Bioakumulasi sebesar 119,21mg/kg secara nyata menghambat pertumbuhan ikan mas. Kata kunci: endosulfan, bioakumulasi, pertumbuhan, ikan mas

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