0814111040, LISA NOVALIA (2012) PENGARUH METIL METSULFURON TERHADAP INSANG IKAN PATIN SIAM (Pangasius hypopthalmus). Digital Library.
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Abstract
Abstrak Ikan patin siam merupakan salah satu komoditas penting budidaya air tawar di Indonesia. Ikan patin siam dapat dibudidayakan di lahan bekas sawah, sehingga kemungkinan dapat terpapar residu dari penggunaan herbisida. Metil metsulfuron merupakan bahan aktif herbisida yang digunakan untuk meberantas gulma. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi metil metsulfuron terhadap mortalitas dan struktur histologi insang ikan patin siam. Penelitian terdiri atas uji penentu selang konsentrasi dan uji definitif. Hasil uji penentu selang konsentrasi menunjukkan bahwa metil metsulfuron memiliki batas ambang atas pada konsentrasi 100 mg/L dan batas ambang bawah 1 mg/L. Berdasarkan uji definitif diketahui bahwa nilai LC50-96 jam sebesar 51,4 mg/L terhadap ikan patin siam. Pengamatan terhadap jaringan insang menunjukkan terjadi kerusakan berupa hiperplasia lamella insang, deskuamasi, kongesti, dan hemoragi. Metil metsulfuron berpengaruh nyata terhadap mortalitas dan jaringan insang pada ikan patin siam. Semakin tinggi konsentrasi metil metsulfuron maka mortalitas dan tingkat kerusakan insang ikan patin siam juga semakin tinggi. Kata kunci: Ikan patin siam; Metil metsulfuron; Mortalitas; Insang; Konsentrasi Abstract The Asian Catfish is one of important commodity in Indonesian freshwater. Catfish cultivated in former rice fields that could potentially exposed to chemical herbicides. Metsulfuron-methyl is active compounds in herbicide. The aims of this research was to know the effect of metsulfuron-methyl concentration on mortality and histology of catfish gills. The research consisted of decisive test of concentration range and definitive test. Result of decisive test of concentration range showed that metsulfuron-methyl has up-level limit concentration 100 mg/L and low-level limit concentration 1 mg/L. The lethal concentration (LC50) value of metsulfuron-methyl was 51,4 mg/L for 96 h of exposure. Observation of histology on gills showed hyperplasia, desquamation, congestion, and hemorrhage. The result of this research showed that metsulfuron-methyl significantly affect to mortality and histology of catfish gills. The higher concentration, the higher the level of mortality and gills damage. Key word: Metsulfuron-methyl; Catfish; Mortality; Gill; Concentration
| Item Type: | Article |
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| Subjects: | A General Works = Karya Karya Umum |
| Divisions: | Fakultas Pertanian |
| Depositing User: | IC-STAR . 2015 |
| Date Deposited: | 25 Aug 2015 07:20 |
| Last Modified: | 25 Aug 2015 07:20 |
| URI: | http://digilib.unila.ac.id/id/eprint/12131 |
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