| NIM | B1J012205 |
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| Namamhs | NOVI ARIYANTI |
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| Judul Artikel | HUBUNGAN KONSENTRASI NUTRIEN TERLARUT (NITRAT DAN ORTOFOSFAT) DENGAN KELIMPAHAN Chlorophyta DI PERAIRAN WADUK PENJALIN KABUPATEN BREBES
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| Abstrak (Bhs. Indonesia) | Chlorophyta merupakan salah satu divisi dari fitoplankton yang banyak ditemukan di perairan tawar dan berperan sebagai produsen primer. Nitrat dan ortofosfat merupakan faktor pembatas bagi kehidupan fitoplankton. Tujuan penelitian ini adalah mengetahui konsentrasi nitrat dan ortofosfat di perirairan waduk Penjalin Kabupaten Brebes, mengetahui kelimpahan, keanekaragaman dan dominansi Chlorophyta di perairan Waduk Penjalin Kabupaten Brebes dan mengetahui hubungan antara konsentrasi nitrat dan ortofosfat dengan kelimpahan Chlorophyta di perairan Waduk Penjalin Kabupaten Brebes. Penelitian dilaksanakan dengan menggunakan metode survai. Pengambilan sampel pada 6 stasiun berdasarkan rona lingkungan. Pengambilan sampel dilakukan sebanyak 3 kali dengan interval waktu 4 minggu. Kelimpahan Chlorophyta dihitung dengan metode volumetri, keanekaragaman plankton dianalisis menggunakan indeks keanekaragaman Shannor-Wienner, sedangkan dominansi menggunakan indeks dominansi Simpson. Hubungan konsentrasi nitrat dan ortofosfat dengan kelimpahan Chlorophyta dianalisa menggunakan analisis korelasi regresi. Hasil pengukuran konsentrasi nitrat berkisar antara 0,348 mg/l - 0,568 mg/l dan ortofosfat berkisar antara 0,006 mg/l - 0,075 mg/l. Kelimpahan Chlorophyta yang didapatkan berkisar antara 2.418 - 6.955 ind/l dengan spesies yang paling melimpah adalah Tetraedron minimum dengan nilai indeks keanekaragaman (H′) berkisar antara 2,08-2,75 dan nilai indeks dominansi (C) berkisar antara 0,08 - 0,21. Korelasi hubungan konsentasi nitrat dan ortofosfat adalah kuat dengan koefisien korelasi (r) sebesar 0,797 dan koefisien determinasi sebesar 0,635 (63,50%), serta persaman regresi Y= 42,14 + 145 Nitrat + 1.280 Ortofosfat. |
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| Abtrak (Bhs. Inggris) | Chlorophyta is one of phytoplankton division which can see in fresh waters and it serves as a primary producer. Nitrate and orthophosphate is limiting factor in phytoplankton living. The purpose of research is to know how much nitrate concentration and orthophosphate in waters at Penjalin Reservoir, Brebes District, to know how much abundance, diversity, and domination of Chlorophyta in waters at Penjalin Reservoir, Brebes District, to know association between nitrate concentration and orthophosphate with abundance of Chlorophyta in waters at Penjalin Reservoir, Brebes District. The Research had been doing with survey method. The collection of sample had been doing by purposive sampling at 6 station based on hue environment. The collection of sample had been doing about 3 section with time interval about 4 weeks. The Abundance of Chlorophyta was counted with volumetry Method. Diversity of Plankton was analyzed with Shannon-Wienner Diversity Index, then the domination used Simpson Domination Index. Association between Nitrate concentration and orthophosphate with abundance of Chlorophyta had been analyzed with regression and correlation. The result measuring of nitrate concentration is generally between 0,348 mg/l - 0,568 mg/l and Orthophosphate are generally between 0,006 mg/l - 0,075 mg/l. Abundance of Chlorophyta which used generally between 2.418 - 6.955 ind/l with the most diversity of species is Tetraedron minimum when the diversity of indeks value (H′) about 2,08-2,75 and domination of index value (D) about 0,08 - 0,21. Correlation of association between nitrate concentrate and Orthophosphate are strong with coefficient of correlation (r) is 0,797 and coefficient of determination is 0,635 (63,50%), and regression equation Y= 42,14 + 145 Nitrat + 1.280 Ortofosfat. |
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| Kata kunci | Nitrat, Ortofosfat, Kelimpahan Chlorophyta, Waduk Penjalin |
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| Pembimbing 1 | Drs. Carmudi, M.Si. |
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| Pembimbing 2 | Dra. Hj. Christiani, M.Si. |
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| Pembimbing 3 | |
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| Tahun | 2016 |
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| Jumlah Halaman | 10 |
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| Tgl. Entri | 2016-07-19 14:13:42.911273 |
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