Hasil Pencarian  ::  Simpan CSV :: Kembali

"Penelitian mengenai penilaian kualitas perairan Situ Agathis Kampus Universitas Indonesia Depok, Jawa Barat telah dilakukan pada bulan Oktober--November 2016. Penelitian ini bertujuan untuk mengidentifikasi dan mengkaji penggunaan makro invertebrata yang bersifat perifitik untuk menilai kualitas perairan Situ Agathis. Pengambilan sampel dilakukan dengan metode purposive random sampling, mengambil tumbuhan yang terdapat pada kolom air di stasiun inlet, midlet dan outlet serta melakukan pengukuran parameter lingkungan. Sampel yang diperoleh dianalisis menggunakan Family Biotic Index FBI, indeks keragaman Shannon-Wiener, dan indeks Dominansi Simpson. FBI digunakan untuk mengujikualitas air berdasarkan nilai toleransi dari tiap family, dan nilai FBI Situ Agathis adalah 6,71 yang termasuk kedalam perairan berkualitas buruk dengan tingkat pencemaran berat. Indeks keanekaragaman H' pada Situ Agathis adalah 1,93 tergolong keanekaragaman sedang yang artinya jumlah individu tidak seragam dannilai dominansi Situ Agathis sekitar 0,21.yang menunjukan tidak terdapatnya jenismakroinvertebrata yang dominan di Situ Agathis karena nilai dominansi beradadibawah 0,5.

---

A research of Water Quality Assessment in Situ Agathis, Universitas Indonesia,Depok has been done from October November 2016. The reasearch was aimed toidentify and analyze the use of perifitic macroinvertebrates for assesing waterquality of Situ Agathis. Macroinvertebrates samples were taken using purposiverandom method by collecting plants sampel in three different stations inlet,midlet, and outlet of Situ Agathis, along with measurement of physical andchemical parameters. Macroinvertebrates sampel were identified and analyzedusing Family Biotic Index FBI , Shannon Wiener diversity index, and Simpson 39 sdominance index. The FBI value of Situ Agathis were classified as poor qualitywith score 6.71. The biodiversity index value of Situ Agathis was 1.93 andclassified as moderate diversity. The dominancy index of Situ Agathis was 0.21,and it indicated that there was no dominancy among macroinvertebrates familyfound in Situ Agathis."

"Penelitian tentang struktur komunitas hidrofita di Situ Agathis Kampus Universitas Indonesia Depok, Jawa Barat telah dilakukan pada bulan Juni--Juli 2011. Penelitian bertujuan untuk mengetahui struktur komunitas hidrofita yang meliputi keanekaragaman, dominansi, frekuensi, kerapatan, dan nilai penting di Situ Agathis. Analisis vegetasi tumbuhan dilakukan dengan metode purposive random sampling pada daerah inlet, midlet, dan outlet. Sampel tumbuhan yang diperoleh diidentifikasi menggunakan buku identifikasi tumbuhan air. Hasil penelitian menunjukkan terdapat 14 jenis hidrofita di Situ Agathis. Hasil penelitian juga menunjukkan bahwa keanekaragaman jenis hidrofita di Situ Agathis tergolong ?sedang? dan penyebaran jenis cukup merata; akan tetapi kesamaan jenis ?kurang sama? antara daerah inlet, midlet, dan outlet perairan. Jenis Eichhornia crassipes merupakan tumbuhan yang mendominasi dan memiliki nilai penting tertinggi di perairan Situ Agathis.

---

A research regarding the community structure of hydrophyte in Lake Agathis at the University of Indonesia (UI) Campus Depok, West Java, has been conducted from June--July 2011. The research was aim to understand the community structure of hydrophyte, which include biodiversity, dominance, frequency, density, and importance values in Lake Agathis. The vegetation analysis for all area of study were done using the purposive random sampling method. The plant samples that were collected were then identified based on the morphological character using the hydrophyte identification book. Fourteen plant species were found in Lake Agathis. The result shows that the hydrophyte biodiversity in Lake Agathis was in a ?medium- abundant? category, the species dispersal was in an ?evenly enough? category, however the diversity of the inlet, midlet, and outlet area were ?dissimilar?. Eicchornia crassipes was the dominance species which also has the highest importance value in Lake Agathis."