Abstrak

Baca Juga : UJI SELEKTIVITAS PISISSIDA EKSTRAK METANOL DAUN KEMANGI (OCIMUM BASILICUM) TERHADAP MORTALITAS IKAN MUJAIR (OREOCHROMIS MOSSAMBICUS) DAN IKAN BANDENG (CHANOS CHANOS) (IKHLASUL AMAL, 2015) ,

Baca Juga : PENGARUH KONSENTRASI EKSTRAK METANOL BIJI PUTAT AIR (BARRINGTONIA RACEMOSA) TERHADAP MORTALITAS IKAN MUJAIR (OREOCHROMIS MOSSAMBICUS) (liatul fatimah, 2013) ,

ssambicus sebesar 17,32 ppm dengan batas bawah 14,95 ppm dan batas atas 20,07 ppm serta nilai lc50 c. chanos forsk sebesar 18,17 ppm dengan batas bawah 14,60 ppm dan batas atas 22,61 ppm. hasil perhitungan selektivitas menunjukkan nilai 1,04 yang menunjukkan bahwa ekstrak metanol buah takokak termasuk kategori selektif sebagai pisissida terhadap ikan mujair (o. mossambicus). pengaplikasian ekstrak metanol buah takokak (s. torvum sw.) terhadap ikan mujair (o. mossambicus) tidak disarankan pada tambak pemeliharaan ikan bandeng (c. chanos forsk) setelah tebar benih. kata kunci : ekstrak s. torvum sw., o. mossambicus, c. chanos forsk, pisissida, mortalitas, lc50, selektivitas. ? abstract the objective of this research was to number of selectivity in concentration methanol extract of solanum torvum to tilapia fish (oreochromis mossambicus) like as a target of organism sample test and milkfish (chanos chanos forsk) like as a non-target of organism sample test and can determine the application in accordance with their level of selectivity of the methanol extract of the takokak (s. torvum sw.) on the maintenance of milkfish (c. chanos forsk). the research was conducted at chemistry laboratory of teacher training and education faculty, syiah kuala university on august 2014. this research was designed using completely randomized design, non factorial with five treatments of concentration (0; 5; 10; 15 dan 20 ppm) and four repetitions. the test organism was tilapia fish (o. mossambicus) as target and milkfish (c. chanos forsk) as non target organism, it was used 10 individus of each container. the trimmed spearman-karber program showed the lc50 of tilapia fish (o.mossambicus) was 17.32 ppm with the lower confidence was 14.95 ppm and the upper confidence was 20.07 ppm, while the lc50 of milkfish (c. chanos forsk) was 18.17 ppm with the lower confidence was 14.60 ppm and the upper confidence was 22.61 ppm. the selectivity value was 1.04, it was proven that the methanol extract of s. torvum sw. was category selective as piscicide to tilapia fish (o. mossambicus). the application of s. torvum methanol extract to tilapia fish (o. mossambicus) is not recommended in the aquaculture of milkfish (c. chanos forsk) after seeding. keywords : extract s. torvum sw., o. mossambicus, c. chanos forsk, piscicida, mortality, lc50,

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